Energy storage cabinet and energy storage system thereof

Abstract

The utility model relates to an energy storage cabinet and an energy storage system thereof, each energy storage cabinet comprises a cabinet body base, a cabinet body installed and fixed on the cabinet body base and a plurality of energy storage modules installed and fixed in the cabinet body, and the plurality of energy storage modules are stacked in the height direction of the energy storage cabinet. The cabinet body further comprises a battery bin fixedly mounted on the cabinet body base and a current transformation bin thermally isolated from the battery bin; the battery compartment is further divided into a left battery compartment and a right battery compartment which is arranged in parallel with the left battery compartment, and the converter compartment is arranged above the left battery compartment in a stacked manner; a plurality of energy storage modules are stacked in the battery bin in the height direction of the energy storage cabinet; an energy storage converter is mounted in the converter bin; and the energy storage converter is electrically connected with the energy storage module.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage cabinets, and more specifically, to an energy storage cabinet and its energy storage system. Background Art

[0002] The energy storage cabinet can be used to store electric energy. When the energy storage cabinet is charging and discharging, it will generate a lot of heat. There are many cooling, fire protection, control and other devices in the energy storage cabinet for normal and stable operation. In the related art, it is necessary to reasonably layout the cooling, fire protection, control and other devices in the energy storage cabinet. In addition, the external wiring is complex and difficult to manage and fix. The external wiring in the energy storage cabinet is relatively complex and disordered, which is not conducive to the assembly, maintenance and repair of the energy storage cabinet.

[0003] Based on the above purposes, it is necessary to design an air-cooled energy storage cabinet and its energy storage system with reasonable space layout, clear wiring, and conducive to assembly, maintenance and repair. Summary of the Utility Model

[0004] The purpose of the utility model is to address the deficiencies in the above background art and provide an air-cooled energy storage cabinet and its energy storage system with reasonable space layout, clear wiring, and conducive to assembly, maintenance and repair.

[0005] To achieve the above object, an energy storage cabinet of the utility model includes a cabinet base, a cabinet body fixedly installed on the cabinet base, and a plurality of energy storage modules fixedly installed in the cabinet body. The plurality of energy storage modules are arranged in layers in the height direction of the energy storage cabinet. The cabinet base includes a base frame and a bottom plate installed on the top of the base frame. A battery compartment is installed on the base frame of the cabinet base. The cabinet body further includes a cabinet frame, a left side plate and a right side plate oppositely and fixedly installed on the side surfaces of the cabinet frame, a top plate installed on the top of the cabinet frame, and a bottom plate fixedly installed at the bottom of the cabinet frame. The cabinet body further includes a front cabinet door and a rear cabinet door oppositely installed on the side surfaces of the cabinet frame. The cabinet body of the energy storage cabinet forms a structure with an internal accommodation space by the cabinet frame, the bottom plate, the top plate, the left side plate, the right side plate, the front cabinet door and the rear cabinet door. The internal accommodation space of the cabinet body is further divided into a battery compartment and a converter compartment that is thermally isolated from the battery compartment. The battery compartment is further divided into a left battery compartment and a right battery compartment arranged side by side with the left battery compartment, and the converter compartment is arranged in layers above the left battery compartment. A plurality of the energy storage modules are arranged in layers in the height direction in the battery compartment. An energy storage converter is installed in the converter compartment. The energy storage converter is electrically connected to the energy storage module.

[0006] Specifically, the front cabinet door further includes a front battery compartment door and a front converter compartment door respectively corresponding to the battery compartment and the converter compartment. The rear cabinet door further includes a rear battery compartment door and a rear converter compartment door respectively corresponding to the battery compartment and the converter compartment. Both the front battery compartment door and the rear battery compartment door are of a double-door structure, and both the front converter compartment door and the rear converter compartment door are of a single-door structure.

[0007] Specifically, the energy storage cabinet further includes an air-cooled heat dissipation mechanism; each air-cooled heat dissipation mechanism includes a cooling air conditioner arranged on the rear battery compartment door, and the cold air outlets of the cooling air conditioner are arranged inside the rear battery compartment door. A duct is arranged on the top of the battery compartment, and the duct has an air inlet corresponding to and matingly installed with each cold air outlet and an air outlet arranged on the side close to the front battery compartment door. Axial fans are correspondingly installed and fixed on the energy storage modules, and a second exhaust fan is arranged on the rear battery compartment door.

[0008] Specifically, the converter compartment is thermally isolated from the left battery compartment and the right battery compartment respectively in the internal accommodation space by means of arranging partitions. Specifically, a partition is arranged between the left battery compartment and the converter compartment and between the right battery compartment and the converter compartment.

[0009] Specifically, an air inlet window is correspondingly arranged on the front converter compartment door, and an air outlet window or a first exhaust fan is correspondingly arranged on the rear converter compartment door.

[0010] Specifically, battery compartment sealing strips and converter compartment sealing strips are respectively correspondingly arranged around the door openings of the battery compartment and the converter compartment. After the front battery compartment door and the rear battery compartment door are closed, the door walls of the front battery compartment door and the rear battery compartment door are both pressed against the battery compartment sealing strips; after the front converter compartment door and the rear converter compartment door are closed, the door walls of the front converter compartment door and the rear converter compartment door are both pressed against the converter compartment sealing strips.

[0011] Specifically, the energy storage cabinet further includes a high-voltage box placed close to the converter compartment side. The high-voltage box is electrically connected to the energy storage converter placed in the converter compartment, and the high-voltage box is used for electrically connecting to the energy storage unit in the battery compartment.

[0012] Specifically, module brackets stacked in the height direction of the energy storage cabinet are further installed and fixed on the corresponding cabinet frames of the left battery compartment and the right battery compartment, and the energy storage modules are placed, installed and fixed on the module brackets; the module brackets are of a multi-layer structure stacked up and down and are divided into two juxtaposed structures on the left and right.

[0013] Specifically, an energy storage cabinet operating status indicator light and an energy storage cabinet emergency stop control switch are further provided on the front door of the battery compartment of the cabinet.

[0014] Specifically, the energy storage cabinet further includes a smoke sensor, a temperature sensor, a CO sensor and a water intrusion sensor arranged in the battery compartment and electrically connected to the energy storage controller; and an aerosol fire extinguisher also arranged in the battery compartment and connected to the energy storage controller.

[0015] The energy storage system of the second utility model adopts the energy storage cabinet described in the first utility model.

[0016] In summary, the energy storage cabinet and the battery compartment and converter compartment of the energy storage system thereof provided by the utility model have a reasonable, effective and simple layout and a mutually thermally isolated structural design. The use of double doors on the cabinet body is conducive to the assembly, inspection and maintenance of the energy storage cabinet, and maximizes and improves the construction efficiency. At the same time, based on the layout and structure of the energy storage cabinet and the use of air cooling and heat dissipation, a unique air cooling and heat dissipation mechanism is specifically proposed to improve the heat exchange effect of the energy storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of an energy storage cabinet according to the utility model.

[0018] Figure 2 This is another three-dimensional schematic diagram of the energy storage cabinet of one of the utility models.

[0019] Figure 3 This is a front view of an energy storage cabinet of the utility model with its front door open.

[0020] Figure 4 It is a three-dimensional schematic diagram of the energy storage cabinet of one of the utility models with the front door of the energy storage cabinet opened.

[0021] Figure 5 This is a front view of an energy storage cabinet of the utility model with its rear door open.

[0022] Figure 6 It is a three-dimensional schematic diagram of the energy storage cabinet of one of the utility models with the front door of the energy storage cabinet opened.

[0023] Figure 7 This is a front view of an energy storage cabinet according to the utility model.

[0024] Figure 8 for Figure 7 The energy storage cabinet shown is cut along CC to obtain a cross-sectional view of the utility model.

[0025] Figure 9 forFigure 7 Another cross-sectional view of the present utility model is obtained by cutting the shown energy storage cabinet along D-D.

[0026] Figure 10 A three-dimensional schematic diagram of an energy storage cabinet according to one of the present utility models after removing the front cabinet door, rear cabinet door, top plate, energy storage module, high-voltage box, etc.

[0027] Figure 11 A front view of an energy storage cabinet according to one of the present utility models after removing the front cabinet door, rear cabinet door, top plate, energy storage module, high-voltage box, etc. Detailed implementation manners

[0028] To describe in detail the technical content, structural features, achieved purposes and effects of the present utility model, the following examples are hereby cited and described in detail in conjunction with the accompanying drawings.

[0029] Unless otherwise specified, all technical and scientific terms used in the embodiments of the present application have the same meaning as commonly understood by those skilled in the technical field of the present application. The terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the scope of the present application. The term "and / or" used in the present application includes any and all combinations of one or more of the related listed items.

[0030] It should be noted that the orientation terms such as "upper", "lower", "left", "right", etc. described in the embodiments of the present application are described from the perspective shown in the accompanying drawings and should not be construed as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that a component is connected "above" or "below" another component, it can not only be directly connected "above" or "below" another component, but also be indirectly connected "above" or "below" another component through an intermediate component.

[0031] Please refer to Figures 1 to 11 , an energy storage cabinet 100 according to one of the present utility models includes a cabinet base 10, a cabinet body 20 installed and fixed on the cabinet base 10, and a plurality of energy storage modules 30 installed and fixed in the cabinet body 20. The plurality of energy storage modules 30 are stacked in the height direction of the energy storage cabinet 100. When the energy storage cabinet 100 is placed in the Figure 1 direction shown in, the height direction of the energy storage cabinet 100 refers to the up and down direction of the energy storage cabinet 100, that is, the plurality of energy storage modules 30 are stacked in the height direction of the energy storage cabinet 100.

[0032] The cabinet base 10 includes a rectangular base frame (not marked in the figure) and a bottom plate (not marked in the figure) installed on the top of the base frame.

[0033] The cabinet body 20 further includes a cabinet body frame 213; a left side plate 214 and a right side plate 215 which are oppositely installed and fixed on the side surface of the cabinet body frame 213; a top plate 216 installed on the top of the cabinet body frame 213; a bottom plate (not marked in the figure) installed and fixed on the bottom of the cabinet body frame 213; and a front cabinet door 218 and a rear cabinet door 219 which are oppositely installed on the side surface of the cabinet body frame 213. The cabinet body of the energy storage cabinet 100 is a structure with an internal accommodation space formed by the cabinet body frame 213, the top plate 216, the bottom plate (not marked in the figure), the left side plate 214, the right side plate 215, the front cabinet door 218 and the rear cabinet door 219 together.

[0034] The internal accommodation space of the cabinet body is further divided into a battery compartment 21 and a converter compartment 22 which is thermally isolated from the battery compartment 21. The battery compartment 21 is further divided into a left battery compartment 211 and a right battery compartment 212 arranged side by side with the left battery compartment 211. And the converter compartment 22 is arranged in a stacked manner along the up and down direction of the energy storage cabinet 100 above the left battery compartment 211. A plurality of the energy storage modules 30 are arranged in a stacked manner along the height direction of the energy storage cabinet 100 in the battery compartment 21, and an energy storage converter 23 is installed in the converter compartment 22. The energy storage converter 23 is electrically connected to the energy storage modules 30. Thus, after the energy storage converter 23 is respectively electrically connected to an external power grid and an electrical load, the charging of the energy storage modules 30 by the external power grid can be realized through the AC-DC conversion of the energy storage converter 23, and the power supply of the energy storage modules 30 to the electrical load can be realized through the DC-AC conversion of the energy storage converter 23.

[0035] The battery compartment 21 is installed on the base frame of the cabinet body base 10 through fasteners (not shown in the figure). Setting the base frame can better improve the load-bearing capacity of the cabinet body base 10. With the base frame and the bottom plate arranged on its top, it can not only prevent animals from entering the battery compartment 21, but also make full use of the installation space on the bottom plate to install corresponding devices, and can also prevent water vapor at the installation position from entering the battery compartment 21, causing problems such as device short circuits. In a specific embodiment, the fasteners (not shown in the figure) are bolts.

[0036] The energy storage module 30 can be a single battery, or a battery module, a battery pack, etc. composed of single batteries. A module support 210 is arranged in the battery compartment 21, and the energy storage module 30 is placed on the module support 210.

[0037] A plurality of lifting lugs 201 are arranged on the top of the cabinet body 20, so as to realize the hoisting and handling of the energy storage cabinet 100 through the connection between a hoisting tool (not shown in the figure) and the lifting lugs 201.

[0038] The front cabinet door 218 further includes a front battery compartment door 2181 and a front converter compartment door 2182 respectively corresponding to the battery compartment 21 and the converter compartment 22. The rear cabinet door 219 further includes a rear battery compartment door 2191 and a rear converter compartment door 2192 respectively corresponding to the battery compartment 21 and the converter compartment 22. Both the front battery compartment door 2181 and the rear battery compartment door 2191 are of a double-door structure, and both the front converter compartment door 2182 and the rear converter compartment door 2192 are of a single-door structure, so as to effectively achieve the installation and maintenance of the energy storage module, air-cooling device, fire-fighting device, busbar, conductive terminal, etc. In a specific embodiment, the front battery compartment door 2181, the front converter compartment door 2182, the rear battery compartment door 2191, and the rear converter compartment door 2192 are all movably mounted on the cabinet body 20 in a hinged manner.

[0039] Exemplarily, in some embodiments of the present invention, the front battery compartment door 2181 is further divided into a left front battery compartment door (not marked in the figure) corresponding to the left battery compartment 211 and a right front battery compartment door (not marked in the figure) corresponding to the right battery compartment 212. The rear battery compartment door 2191 is further divided into a left rear battery compartment door (not marked in the figure) corresponding to the left battery compartment 211 and a right rear battery compartment door (not marked in the figure) corresponding to the right battery compartment 212.

[0040] The converter compartment 22 can be thermally isolated from the left battery compartment 211 and the right battery compartment 212 in the internal accommodation space by setting a partition 40. Please refer to Figure 4 and Figure 6 , exemplarily, a partition (not marked in the figure) is provided between the left battery compartment 21 and the converter compartment 22, and between the right battery compartment 212 and the converter compartment 22, so as to partition the battery compartment 21 and the converter compartment 22 in the internal accommodation space of the cabinet body 20.

[0041] Further, an air inlet window 2184 is correspondingly provided for the front compartment door 2182 of the converter compartment, and an air outlet window 2194 or a first exhaust fan is correspondingly provided for the rear compartment door 2192 of the converter compartment. Around the door openings of the battery compartment 21 and the converter compartment 22, a battery compartment sealing strip (not marked in the figure) and a converter compartment sealing strip (not marked in the figure) are respectively provided. Both the battery compartment sealing strip and the converter compartment sealing strip are made of elastic rubber materials with characteristics such as heat resistance, cold resistance, corrosion resistance, electrical insulation, and flame retardancy. For example, it can be made of silicone rubber material, or fluororubber material, or polyester elastic material. After the front compartment door 2181 and the rear compartment door 2191 of the battery compartment are closed, the door walls of the front compartment door 2181 and the rear compartment door 2191 of the battery compartment are both pressed against the battery compartment sealing strip; after the front compartment door 2182 and the rear compartment door 2192 of the converter compartment are closed, the door walls of the front compartment door 2182 and the rear compartment door 2192 of the converter compartment are both pressed against the converter compartment sealing strip. By the extrusion of the door wall of the battery compartment 21 on the battery compartment sealing strip and the extrusion of the converter compartment 22 on the converter compartment sealing strip, the battery compartment 21 and the converter compartment 22 can effectively form sealed spaces respectively, thereby further enhancing the thermal isolation effect between the battery compartment 21 and the converter compartment 22.

[0042] When the energy storage converter 23 is assembled in the converter compartment 22, it can be directly supported on the bottom of the converter compartment 22 and placed in the middle; it can also be supported on the bottom of the converter compartment 22 and abutted against one side wall of the converter compartment 22. Additionally, the energy storage converter 23 can be placed in the middle of the converter compartment 22 through a bracket provided in the converter compartment 22. When the energy storage converter 23 is placed in the middle of the converter compartment 22 through a bracket, it can maximize the heat exchange between the energy storage converter 23 and the air entering the converter compartment 22 through the air inlet window, thereby effectively achieving the heat dissipation effect.

[0043] On the corresponding cabinet frame 213 of the left battery compartment 211 and the right battery compartment 212, module brackets 210 arranged in layers in the height direction of the energy storage cabinet 100 are further installed and fixed, and the energy storage modules 30 are placed and installed and fixed on the module brackets 210. The module brackets 210 are of a multi-layer structure arranged in an upper and lower stacked manner and are of a structure with two left and right compartments arranged side by side, which can effectively and maximally utilize the internal accommodation space of the battery compartment 21 of the energy storage cabinet 100 to place multiple energy storage modules 30, so as to improve the energy storage capacity of the energy storage cabinet 100.

[0044] Exemplarily, in some embodiments of the present utility model, a plurality of module brackets 210 may be installed in the battery compartment 21. The plurality of module brackets 210 are sequentially arranged at intervals in the height direction of the energy storage cabinet 100. The plurality of energy storage modules 30 are respectively installed on the plurality of module mounting brackets 210. Among them, the plurality of energy storage modules 30 and the plurality of module brackets 210 are arranged in one-to-one correspondence. One module bracket 210 is installed with one energy storage module 30. The module bracket 210 can reliably support the energy storage module 30, so that the energy storage module 30 is stably installed in the battery compartment 21. The distance between two adjacent module brackets 210 can be reasonably set according to the heat dissipation, electrical and other requirements between the energy storage modules 30.

[0045] The energy storage cabinet 100 further includes a high-voltage box 50 disposed on the module bracket 210 in the left battery compartment 211 and placed near the side of the converter compartment 22. The high-voltage box 50 is electrically connected to the energy storage converter 23 placed in the converter compartment 22, and the high-voltage box 50 is used for electrically connecting to the energy storage modules 30 in the battery compartment 21.

[0046] The energy storage cabinet 100 further includes an air-cooled heat dissipation mechanism. Each air-cooled heat dissipation mechanism includes a cooling air conditioner 61 installed on the rear door 2191 of the battery compartment, and the cold air outlet 611 of the cooling air conditioner 61 is disposed inside the rear door 2191 of the battery compartment; a duct 62 disposed on the top of the battery compartment 22, and the duct 62 has an air inlet (not marked in the figure) that corresponds to and is matched with the cold air outlet 611 and an air outlet (not marked in the figure) disposed near the front door 2181 of the battery compartment; an axial flow fan 63 fixedly installed on the energy storage module; and a second exhaust fan (not shown in the figure) and an exhaust window (not marked in the figure) disposed on the rear door 2191 of the battery compartment. According to the specific number of compartments in the battery compartment 21, the energy storage cabinet 100 can be a single-battery-compartment structure, a double-battery-compartment structure or a multi-battery-compartment structure. Please refer to Figure 8 and Figure 9, for example, the present utility model schematically shows an energy storage cabinet 100 with a dual-battery compartment structure. Correspondingly, the air-cooled heat dissipation mechanism of the energy storage cabinet 100 is also correspondingly set as a dual-air duct air-cooled heat dissipation structure. One air duct 62 is arranged at the top of the left battery compartment 211 and located between the high-voltage box 50 and the converter compartment 22, and the other air duct 62 is arranged at the top of the right battery compartment 212. When the air-cooled heat dissipation mechanism of the energy storage cabinet 100 works, the above-mentioned air-cooled heat dissipation mechanism can effectively form an air pressure difference between one side of the front compartment door 2181 of the battery compartment and one side of the rear compartment door 2191 of the battery compartment, so that the cold air sent into the battery compartment 21 from the air outlet of the air duct 62 always flows from one side of the front compartment door 2181 of the battery compartment to one side of the rear compartment door 2191 of the battery compartment, and thus can effectively achieve the effect of quickly dissipating heat from the energy storage module 30 of the cabinet body 20.

[0047] The second exhaust fan and the exhaust window are arranged on the rear compartment door 2191 of the battery compartment, and the air outlet window 2194 or the first exhaust fan is arranged on the rear compartment door 2192 of the converter compartment. This structure of setting the air outlet on the same side of the cabinet body 20 can effectively strengthen the heat dissipation effect of the converter compartment 22 and prevent the hot air discharged from the battery compartment 21 from entering the converter compartment 22.

[0048] In some embodiments of the present utility model, the cabinet base 10 further includes a plurality of grounding parts (not shown in the figure), and the plurality of grounding parts are installed on the cabinet base 10 for connecting with the grounding wire of the battery compartment 21. Setting the grounding parts on the cabinet base 10 facilitates grounding during the installation of the battery compartment 21.

[0049] On the front compartment door 2181 of the battery compartment of the cabinet body 20, there are further provided devices such as an energy storage cabinet operation status indicator light (not marked in the figure) and an energy storage cabinet emergency stop control switch (not marked in the figure) to indicate the working state of the energy storage cabinet (such as the running state, the fault state, etc.) through the indicator light.

[0050] The energy storage cabinet 100 of the present utility model further includes a smoke sensor (not marked in the figure), a temperature sensor (not marked in the figure), a CO sensor (not marked in the figure), and a water intrusion sensor (not marked in the figure) which are arranged in the battery compartment 21 and are electrically connected to an energy storage controller (not shown in the figure); and an aerosol fire extinguisher (not marked in the figure) which is also arranged in the battery compartment 21 and is connected to the energy storage controller.

[0051] The energy storage system of the second aspect of the present utility model adopts the energy storage cabinet 100 of the first aspect of the present utility model.

[0052] In summary, the battery compartment 21 and the power conversion compartment 22 of the energy storage cabinet and its energy storage system provided by the present utility model have a reasonable, effective and simple layout and a structurally designed mutual thermal isolation. The adoption of a double-door manner on the cabinet body 20 is conducive to the assembly, overhaul and maintenance of the energy storage cabinet 100, maximizing the optimization and improvement of the construction efficiency. At the same time, based on the layout, structure of the energy storage cabinet and the use of air-cooled heat dissipation, a unique air-cooled heat dissipation mechanism is specifically proposed, improving the heat exchange effect of the energy storage cabinet 100.

[0053] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An energy storage cabinet, comprising a cabinet base, a cabinet mounted on the cabinet base, and a plurality of energy storage modules mounted in the cabinet, wherein the plurality of energy storage modules are stacked in the height direction of the energy storage cabinet, the cabinet base comprises a base frame and a bottom plate mounted on the top of the base frame, a battery compartment is mounted on the base frame of the cabinet base, the cabinet further comprises a cabinet frame, two left and right plates mounted on the sides of the cabinet frame opposite to each other, a top plate mounted on the top of the cabinet frame, and a bottom plate mounted on the bottom of the cabinet frame, characterized in that: The cabinet body further includes a front cabinet door and a rear cabinet door which are relatively installed on the side of the cabinet frame; the cabinet body of the energy storage cabinet is composed of a cabinet frame, a bottom plate, a top plate, a left side plate, a right side plate, a front cabinet door and a rear cabinet door to form a structure with an internal accommodating space, and the internal accommodating space of the cabinet body is further divided into a battery compartment and a converter compartment which is thermally isolated from the battery compartment; the battery compartment is further divided into a left battery compartment and a right battery compartment which is arranged in parallel with the left battery compartment, and the converter compartment is stacked above the left battery compartment; the battery compartment has a height of 1.5 m and a height of 1.5 m. A plurality of the energy storage modules are stacked in a direction; an energy storage inverter is installed in the converter compartment; the energy storage inverter is electrically connected to the energy storage module; the front cabinet door further includes a battery compartment front compartment door and a converter compartment front compartment door respectively corresponding to the battery compartment and the converter compartment, the rear cabinet door further includes a battery compartment rear compartment door and a converter compartment rear compartment door respectively corresponding to the battery compartment and the converter compartment, and the battery compartment front compartment door and the battery compartment rear compartment door are both double-door structures, and the converter compartment front compartment door and the converter compartment rear compartment door are both single-door structures.

2. The energy storage cabinet according to claim 1, characterized in that: The energy storage cabinet further includes an air-cooling heat dissipation mechanism; each of the air-cooling heat dissipation mechanisms includes a cooling air conditioner arranged on the rear door of the battery compartment, and the cold air outlet of the cooling air conditioner is arranged on the inner side of the rear door of the battery compartment, an air duct arranged on the top of the battery compartment, and the air duct has an air inlet corresponding to and matching the cold air outlet and an air outlet arranged on the side close to the front door of the battery compartment, an axial flow fan correspondingly installed and fixed on the energy storage module, and a second exhaust fan arranged on the rear door of the battery compartment.

3. The energy storage cabinet according to claim 2, characterized in that: The converter compartment is thermally isolated from the left battery compartment and the right battery compartment in the internal accommodating space by setting a partition. Specifically, a partition is set between the left battery compartment and the converter compartment, and between the right battery compartment and the converter compartment.

4. The energy storage cabinet according to claim 2, characterized in that: The front door of the converter compartment is correspondingly provided with an air inlet window, and the rear door of the converter compartment is correspondingly provided with an air outlet window or a first exhaust fan.

5. The energy storage cabinet according to claim 2, characterized in that: The battery compartment and the converter compartment are respectively provided with battery compartment sealing strips and converter compartment sealing strips around the compartment doors. After the front compartment door of the battery compartment and the rear compartment door of the battery compartment are closed, the compartment door wall of the front compartment door of the battery compartment and the compartment door wall of the rear compartment door of the battery compartment are pressed on the battery compartment sealing strip; after the front compartment door of the converter compartment and the rear compartment door of the converter compartment are closed, the compartment door wall of the front compartment door of the converter compartment and the compartment door wall of the rear compartment door of the converter compartment are pressed on the converter compartment sealing strip.

6. The energy storage cabinet according to claim 2 or 3, characterized in that: The energy storage cabinet also includes a high-voltage box arranged on one side close to the converter compartment, the high-voltage box is electrically connected to the energy storage converter placed in the converter compartment, and the high-voltage box is used to be electrically connected to the energy storage unit in the battery compartment.

7. The energy storage cabinet according to claim 1, characterized in that: Module brackets stacked along the height direction of the energy storage cabinet are further installed and fixed on the cabinet frames corresponding to the left battery compartment and the right battery compartment, and the energy storage module is placed, installed and fixed on the module bracket; the module bracket is a multi-layer structure stacked up and down, and is divided into two parallel structures on the left and right.

8. The energy storage cabinet according to claim 1, characterized in that: The front door of the battery compartment of the cabinet is further provided with an energy storage cabinet operation status indicator light and an energy storage cabinet emergency stop control switch.

9. The energy storage cabinet according to claim 1, characterized in that: The energy storage cabinet further includes a smoke sensor, a temperature sensor, a CO sensor and a water intrusion sensor arranged in the battery compartment and electrically connected to the energy storage controller; and an aerosol fire extinguisher also arranged in the battery compartment and connected to the energy storage controller.

10. An energy storage system, characterized in that: An energy storage cabinet as described in any one of claims 1 to 9 is adopted.

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