Energy storage system

Abstract

The utility model provides an energy storage system, which comprises an energy storage cabinet, and a battery pack, a cooling device and an energy storage converter which are arranged in the energy storage cabinet, the energy storage cabinet comprises a cabinet body with an opening in one side and a cabinet door hinged to the cabinet body, the interior of the cabinet body is divided into a battery bin and an electrical bin which are arranged up and down, and the interior of the battery bin is divided into a plurality of containing spaces which are arranged up and down in a stacked mode through separation structures. The cooling device and the energy storage converter are both arranged in the electrical bin, a water cooling plate is arranged in the energy storage converter, the cooling device is connected with the battery pack and the water cooling plate through pipelines so as to cool the battery pack and the energy storage converter, and the energy storage converter is electrically connected with the battery pack so as to convert electric energy bidirectionally. According to the energy storage system, the cabinet body structure is optimized, and the battery packs, the cooling devices and the energy storage converters in the cabinet bodies are reasonably arranged, so that the space utilization rate in the cabinet bodies can be improved, the occupied space of the cabinet bodies can be reduced, side-by-side arrangement of a plurality of cabinet bodies is facilitated, and a good use effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage devices, in particular to an energy storage system. Background Art

[0002] Most of the existing industrial and commercial energy storage cabinets are arranged in a left and right compartment structure. The battery pack, BMS system, PCS energy storage inverter, EMS system, and water chiller are arranged separately, resulting in low overall product space utilization and large footprint. In some special scenarios, industrial and commercial energy storage cabinets cannot be arranged and placed. Therefore, there is an urgent need to further improve the energy storage system. Utility Model Content

[0003] In view of this, the utility model aims to provide an energy storage system to improve the space utilization inside the cabinet and reduce the occupied space of the cabinet.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] An energy storage system comprises an energy storage cabinet, and a battery pack, a cooling device and an energy storage converter arranged in the energy storage cabinet;

[0006] The energy storage cabinet comprises a cabinet body with an opening on one side, and a cabinet door hinged on the cabinet body, wherein the cabinet body is divided into a battery compartment and an electrical compartment arranged vertically, and the battery compartment is divided into a plurality of accommodating spaces arranged vertically and stacked by a partition structure;

[0007] The cooling device and the energy storage inverter are both arranged in the electrical compartment, and a water cooling plate is provided in the energy storage inverter. The cooling device is connected to the battery pack and the water cooling plate through a pipeline to cool the battery pack and the energy storage inverter. The energy storage inverter is electrically connected to the battery pack to convert electrical energy in both directions.

[0008] Furthermore, the energy storage converter is provided with a guide rail, and the energy storage converter is slidably arranged in the electrical compartment through the guide rail.

[0009] Furthermore, the partition structure includes a plurality of partition components spaced apart in the battery compartment along the height direction of the energy storage cabinet; each of the partition components includes a partition block disposed on two opposite sides of the battery compartment, and the partition block includes a mounting plate connected to the cabinet body, and a support plate supported on the bottom of the mounting plate, the battery pack is mounted on the mounting plate, and a limit plate for limiting the displacement of the battery pack is provided on the rear side of the mounting plate.

[0010] Furthermore, a heat insulation layer is provided on a side of the cabinet door facing the battery compartment; and / or a file box and a wire trough are provided on the cabinet door.

[0011] Furthermore, the cabinet door is provided with an exhaust fan corresponding to the battery compartment and a shutter corresponding to the electrical compartment.

[0012] Furthermore, the energy storage cabinet is provided with a detection component for detecting the battery compartment, and a controller connected to the detection component by signal; the detection component includes at least one of a temperature sensor, a smoke detector and a combustible gas detector.

[0013] Furthermore, a fire extinguishing device is provided in the energy storage cabinet, and the fire extinguishing device includes a storage tank storing a fire extinguishing agent, and a solenoid valve for controlling the opening and closing of the storage tank, and the solenoid valve is connected to the controller signal.

[0014] Furthermore, the fire extinguishing agent is perfluorohexanone or hot aerosol.

[0015] Furthermore, the cabinet is provided with a display screen connected to the controller signal; and / or, the electrical compartment is provided with an EMS system and a BMS system.

[0016] Furthermore, the cabinet body is provided with a sealing ring arranged along the edge of the opening, and the cabinet door abuts against the sealing ring when the cabinet door is closed.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The energy storage system described in the utility model optimizes the cabinet structure so that the battery compartment and the electrical compartment are arranged up and down, so as to reasonably arrange the battery pack, cooling device and energy storage inverter in the cabinet, thereby improving the space utilization inside the cabinet, reducing the occupied space of the cabinet, and facilitating the side-by-side arrangement of multiple cabinets, and has a good use effect.

[0019] In addition, the guide rails provided on the energy storage inverter can facilitate the sliding installation of the energy storage inverter in the electrical compartment, and facilitate the installation and replacement of the energy storage inverter. The partition structure adopts multiple partition components arranged at intervals along the height direction, which can facilitate the division of the battery compartment into multiple storage spaces arranged in an upper and lower stack, and facilitate the layout and installation of the battery pack. Each partition component adopts relatively arranged partition blocks, and the mounting plate in the partition block is used for the installation of the battery pack. The setting of the support plate can improve the structural strength of the partition block. The setting of the limit plate can limit the rear of the battery pack, which is conducive to the consistency of the installation position of the battery pack.

[0020] Secondly, the side of the cabinet door facing the battery compartment is equipped with an insulation layer, which can play a role in heat insulation. When the battery system is working normally, it can avoid the external environment temperature from having a relatively large impact on the battery system temperature, and create a relatively insulated compartment condition, reduce the power consumption of the thermal management system, and in the event of a fire, it can effectively isolate the transfer of heat, prevent the spread of the fire, and buy more escape time. The setting of the file box is convenient for placing files. The setting of the wire trough is convenient for wiring and fixing of the wire harness.

[0021] Furthermore, the exhaust fan installed on the cabinet door corresponding to the battery compartment can be used for ventilation and smoke exhaust in emergency situations such as when combustible gases gather. The shutters installed corresponding to the electrical compartment can be used to ventilate and dissipate heat from the electrical components in the electrical compartment. Setting up a controller and detection components in the energy storage cabinet can facilitate real-time detection of the environmental status inside the battery compartment and transmit relevant data to the controller, which can effectively prevent the hazards caused by thermal runaway such as fire. The setting of the fire extinguishing device can be activated when the controller determines that a fire has occurred, so as to extinguish the fire and prevent further disasters.

[0022] In addition, the fire extinguishing agent uses perfluorohexanone or hot aerosol, which has the characteristics of mature technology and easy material acquisition. The display screen installed on the cabinet can be used to display system data, which can facilitate intuitive identification of the operating status of the energy storage system. An EMS system is installed in the electrical warehouse for data collection, network monitoring and energy scheduling. The BMS system can monitor and collect the state parameters of the energy storage battery in real time, and perform necessary analysis and calculation on the relevant state parameters to obtain more system state evaluation parameters, and realize effective control of the energy storage battery body according to specific protection and control strategies. At the same time, it can also realize information interaction to form a linkage control of the entire energy storage system, ensuring the safe, reliable and efficient grid-connected operation of the energy storage system. The sealing ring installed on the cabinet can ensure the sealing performance between the cabinet door and the cabinet after the cabinet door is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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:

[0024] Figure 1 This is a front view of the energy storage cabinet described in an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the inner side of the cabinet door according to an embodiment of the utility model;

[0026] Figure 3 This is a structural schematic diagram of the front side of the cabinet according to an embodiment of the utility model;

[0027] Figure 4This is a structural schematic diagram of the rear side of the cabinet according to an embodiment of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of an energy storage cabinet without a cabinet door according to an embodiment of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the energy storage converter according to an embodiment of the utility model;

[0030] Description of reference numerals:

[0031] 1. Cabinet; 2. Cabinet door; 3. Battery pack; 4. Energy storage converter; 5. EMS system; 6. Fuse; 7. Cooling device; 8. High-voltage box; 9. Pipeline; 10. Battery compartment; 20. Electrical compartment; 11. Separator; 12. Sealing ring; 13. Display screen; 14. Circuit breaker; 15. Phase sequence wiring harness; 16. Electric meter; 17. Terminal block; 18. Transformer; 19. Grounding bar; 21. Door lock; 22. High-voltage danger sign; 23. Indicator light and emergency stop button;

[0032] 101. Forklift hole; 102. Lifting ring; 103. Travel switch; 110. Mounting plate; 111. Support plate; 112. Limit plate; 201. Insulation layer; 202. File box; 203. Wire trough; 204. Exhaust fan; 205. Shutters; 206. Controller; 207. Detection component; 208. Fire extinguishing device; 209. Hinge; 210. Limiter; 211. Door lock connecting rod; 212. Exhaust port; 301. Explosion-proof valve; 401. Water inlet; 402. Water outlet; 403. Guide rail; 100. Communication harness; 200. Total positive power line; 300. Cascade power line; 400. Total negative power line. DETAILED DESCRIPTION

[0033] 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.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, 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, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0037] The present embodiment relates to an energy storage system, which can improve the space utilization rate inside the cabinet 1, reduce the space occupied by the cabinet 1, and facilitate the side-by-side arrangement of multiple cabinets 1.

[0038] In terms of overall structure, see Figures 1 to 5 As shown, the energy storage system of this embodiment includes an energy storage cabinet, and a battery pack 3, a cooling device 7 and an energy storage converter 4 arranged in the energy storage cabinet.

[0039] The energy storage cabinet includes a cabinet body 1 with an opening on one side, and a cabinet door 2 hinged on the cabinet body 1. The cabinet body 1 is divided into a battery compartment 10 and an electrical compartment 20 arranged vertically, and the battery compartment 10 is divided into multiple accommodation spaces arranged in a stacked manner by a partition structure. The cooling device 7 and the energy storage converter 4 are both arranged in the electrical compartment 20, and a water cooling plate is provided in the energy storage converter 4. The cooling device 7 is connected to the battery pack 3 and the water cooling plate through a pipeline 9 to cool the battery pack 3 and the energy storage converter 4. The energy storage converter 4 is electrically connected to the battery pack 3 to convert electrical energy in both directions.

[0040] In the above structure, by optimizing the structure of the cabinet 1, the battery compartment 10 and the electrical compartment 20 are arranged up and down, so as to reasonably arrange the battery pack 3, the cooling device 7 and the energy storage inverter 4 in the cabinet 1, thereby improving the space utilization inside the cabinet 1, reducing the occupied space of the cabinet 1, and facilitating the side-by-side arrangement of multiple cabinets 1.

[0041] It should be noted that, in this embodiment, the cooling device 7 is preferably a water chiller, and the energy storage converter 4 is cooled by water. Moreover, the water chiller is used for temperature control and heat management, and is used to cool and heat the battery system.

[0042] For more details, see Figures 1 to 5As shown, in this embodiment, a forklift hole 101 is provided at the bottom of the energy storage cabinet, so that the entire energy storage cabinet can be supported and transported by a forklift, which facilitates the movement of the energy storage cabinet. A lifting ring 102 is provided on the top of the energy storage cabinet. When the energy storage cabinet is transported, the energy storage cabinet can be lifted by a telephone, and during transportation, the energy storage cabinet can also be auxiliary fixed by passing a rope through the lifting ring 102 to improve the stability of the fixation.

[0043] The cabinet door 2 of this embodiment is as follows Figure 1 and Figure 2 As shown, the cabinet door 2 is connected to the cabinet body 1 through a plurality of hinges 209, and a strong current danger sign 22, an indicator light and an emergency stop button 23 are provided on the cabinet door 2. The strong current danger sign 22 is used to warn of high voltage danger, and irrelevant personnel should not approach the cabinet. The indicator lights indicate standby, operation, and fault from left to right in the illustrated state, which are used to display the current state of the energy storage system. The setting of the emergency stop button can be used to shut down the system in case of sudden emergency failure.

[0044] In addition, the cabinet door 2 of this embodiment is also provided with a door lock 21, which is connected to a door lock connecting rod 211. The door lock 21 is used to open and close the cabinet door 2, and the door lock connecting rod 211 can limit and fix the door panel. In addition, the cabinet door 2 is also provided with a limiter 210, so that when the door body is opened to the maximum position, it can be effectively limited and fixed, which is convenient for operation and maintenance. At the same time, a travel switch 103 is also installed on the cabinet body 1, which will trigger the control circuit closing system after the door is opened. In addition, the travel switch 103 is used to sense the opening and closing state of the door, so as to provide safety protection for the operator.

[0045] In addition, as a preferred implementation, in this embodiment, an exhaust fan 204 corresponding to the battery compartment 10 and a louver 205 corresponding to the electrical compartment 20 are provided on the cabinet door 2. In the position corresponding to the exhaust fan 204, an exhaust port 212 is provided on the cabinet door 2, so that in an emergency such as when combustible gas gathers, ventilation and smoke exhaust are performed to the outside through the exhaust fan 204. The louver 205 can ventilate and dissipate heat for the water cooler and electrical components in the electrical compartment 20.

[0046] Also as a preferred implementation, in this embodiment, a heat insulating layer 201 is provided on the side of the cabinet door 2 facing the battery compartment 10 to play a role in heat insulation. When the battery system is working normally, it can prevent the external environment temperature from having a relatively large impact on the battery system temperature, and create a relatively insulated compartment condition, reduce the power consumption of the thermal management system, and in the event of a fire, it can effectively isolate the transfer of heat, prevent the spread of the fire, and gain more escape time. Also as a preferred embodiment, a file box 202 and a wire groove 203 are also provided on the cabinet door 2. By setting the file box 202, it is convenient to place the documents. And the setting of the wire groove 203 can facilitate the wiring and fixation of the wiring harness.

[0047] In this embodiment, as a preferred implementation, the above-mentioned partition structure divides the battery compartment 10 into a plurality of stacked accommodation spaces, and the battery packs 3 are accommodated in the plurality of accommodation spaces. Specifically, the partition structure includes a plurality of partition components arranged in the battery compartment 10 at intervals along the height direction of the energy storage cabinet. Among them, each partition component includes a partition block 11 arranged on the left and right opposite sides of the battery compartment 10, and the partition block 11 includes a mounting plate 110 connected to the cabinet body 1, and a support plate 111 supported at the bottom of the mounting plate 110. The battery pack 3 is mounted on the mounting plate 110, and a limit plate 112 is provided on the rear side of the mounting plate 110 to limit the displacement of the battery pack 3.

[0048] In a specific implementation, the mounting plate 110 and the support plate 111 can be, for example, an angle steel structure, or a steel plate bent into an L shape, the bottom of the battery pack 3 is connected to the mounting plate 110, and the support plate 111 is connected to the bottom of the mounting plate 110, and the setting of the support plate 111 can improve the structural strength of the partition block 11. At the same time, the displacement of the battery pack 3 is limited by the setting of the limiting plate 112, that is, the limiting plate 112 can limit the rear of the battery pack 3, which is conducive to the consistency of the battery installation position.

[0049] In this embodiment, five battery packs 3 are installed in the battery compartment 10 and connected in series to form a battery cluster. Adjacent battery packs 3 are connected in series through cascade power lines 300. The battery pack 3 at the top has a total positive power line 200, and the battery pack 3 at the bottom has a total negative power line 400. Each battery pack 3 is connected to the high-voltage box 8 in the electrical compartment 20 through a communication harness 100 for communication. Each battery pack 3 is provided with an explosion-proof valve 301 to balance the pressure inside and outside the battery pack 3 to prevent explosion.

[0050] See also Figure 2As shown, in this embodiment, the energy storage cabinet is provided with a detection component 207 for detecting the inside of the battery compartment 10, and a controller 206 connected to the detection component 207 by signal. The detection component 207 includes at least one of a temperature sensor, a smoke detector, and a combustible gas detector. Preferably, the energy storage cabinet of this embodiment is provided with a temperature sensor, a smoke detector, and a combustible gas detector, and is preferably arranged on the cabinet door 2.

[0051] The detection component 207 can detect the environmental status inside the battery compartment in real time and transmit the relevant data to the fire controller 206, which can effectively prevent the hazards caused by thermal runaway such as fire. The controller 206 can process the data transmitted by the detection component 207. If the corresponding fire extinguishing conditions are met, it is considered that battery thermal runaway has occurred, and a signal will be transmitted to the energy management system, and the fire extinguishing agent will be activated to extinguish the fire.

[0052] It is worth noting that the detection component 207, the fire extinguishing device 208 and the controller 206 of this embodiment, as well as the connection between the detection component 207, the fire extinguishing device 208 and the controller 206 can all refer to the existing technology.

[0053] Moreover, in this embodiment, a fire extinguishing device 208 is also provided in the energy storage cabinet. The fire extinguishing device 208 includes a storage tank storing a fire extinguishing agent, and a solenoid valve for controlling the opening and closing of the storage tank, and the solenoid valve is connected to the controller 206 by signal. In this way, when the controller 206 determines that a fire has occurred, the spray will be started to extinguish the fire. Among them, the fire extinguishing agent preferably uses the energy storage system fire extinguishing agent recommended by the state, such as perfluorohexanone or hot aerosol, and the storage amount of the fire extinguishing agent is determined by the total energy of the battery system and the volume of the battery compartment.

[0054] In addition, in this embodiment, a display screen 13 connected to the controller 206 signal is also provided on the cabinet 1 for displaying system data, so as to facilitate intuitive identification of the operating status of the energy storage system. Moreover, in this embodiment, an EMS system 5 and a BMS system are also provided in the electrical compartment 20. Among them, the EMS system 5 is used for data collection, network monitoring and energy scheduling. The BMS system can monitor and collect the state parameters of the energy storage battery in real time, and perform necessary analysis and calculation on the relevant state parameters to obtain more system state evaluation parameters, and realize effective management and control of the energy storage battery body according to specific protection and control strategies. At the same time, it can also realize information interaction to form a linkage control of the entire energy storage system, ensuring the safe, reliable and efficient grid-connected operation of the energy storage system.

[0055] In this embodiment, a fuse 6 is also provided in the electrical compartment 20 to cut off the circuit protection device when an overload or short circuit occurs in the circuit. A high-voltage box 8 is also provided in the electrical compartment 20. The high-voltage box 8 is mainly composed of a built-in BMS battery management system and corresponding electrical components, which is responsible for monitoring the operating status of each battery and ensuring the safe and reliable operation of the energy storage system. The BMS system can monitor and collect the state parameters of the energy storage battery in real time, and perform necessary analysis and calculation on the relevant state parameters to obtain more system state evaluation parameters, and realize effective control of the energy storage battery body according to a specific protection control strategy. At the same time, the BMS system can exchange information with other external devices (PCS energy storage converter 4, EMS system 5, fire protection system, etc.) through its own communication interface and analog / digital input and output interface, forming a linkage control of each subsystem in the entire energy storage power station, ensuring the safe, reliable and efficient grid-connected operation of the energy storage system.

[0056] In this embodiment, the electrical compartment 20 is also provided with a phase sequence harness 15, an electric meter 16, a terminal block 17, a circuit breaker 14, a mutual inductor 18 and a grounding bar 19. Among them, the phase sequence harness 15 is used to connect the three phases ABC to the terminal block 17 to provide an output interface for the system. The electric meter 16 is used to measure electric energy. The terminal block 17 is used to realize the accessory products of electrical connection. The circuit breaker 14 is used to automatically protect in case of overload or short circuit, and can be manually opened during maintenance. The mutual inductor 18 is used to monitor the three-phase current of A, B, and C, and feed it back to the electric meter 16 to measure the electricity. The grounding bar 19 is welded to the cabinet body 1 with a 3mm copper bar. It has the same potential as the cabinet body 1. It is connected to the flat iron during on-site installation to play a grounding protection role.

[0057] In addition, in order to ensure the sealing performance between the cabinet door 2 and the cabinet body 1 after the cabinet door 2 is closed, in this embodiment, a sealing ring 12 is provided on the cabinet body 1 along the edge of the opening. When the cabinet door 2 is closed, the cabinet door 2 abuts against the sealing ring 12 to play a sealing role. Of course, it can be understood that when a rear baffle structure is provided at the rear of the cabinet body 1, a sealing ring 12 can also be provided on the cabinet body 1 to seal the connection gap between the cabinet body 1 and the rear baffle to ensure the sealing effect inside the cabinet body 1.

[0058] In addition, in this embodiment, the energy storage converter 4 can control the charging and discharging process of the lithium battery and perform AC-DC conversion. The controller 206 receives the background control command through communication, and controls the converter to charge and discharge the battery according to the sign and size of the power command, so as to adjust the active power and reactive power of the point network. Moreover, the controller 206 communicates with the BMS through the CAN interface to obtain the battery pack status information, so as to realize the protective charging and discharging of the battery and ensure the safe operation of the battery.

[0059] The energy storage converter 4 of this embodiment is structurally as follows: Figure 6As shown, a water cooling plate is provided inside, and the energy storage converter 4 is also provided with a water inlet 401 and a water outlet 402 connected to the water cooling plate. The water inlet 401 and the water outlet 402 are both connected to the cooling device 7 through a pipeline 9. The pipeline 9 transports coolant, so that the battery pack 3 and the energy storage converter 4 can be cooled and dissipated.

[0060] As a preferred embodiment, Figure 5 and Figure 6 As shown, in this embodiment, the energy storage converter 4 is provided with a guide rail 403, and the energy storage converter 4 is slidably arranged in the electrical compartment 20 through the guide rail 403. This facilitates the sliding installation of the energy storage converter 4 in the electrical compartment 20, and facilitates the installation and replacement of the energy storage converter 4.

[0061] The energy storage system of this embodiment optimizes the structure of the energy storage cabinet and reasonably arranges the battery pack 3, the cooling device 7 and the energy storage converter 4 in the cabinet 1. This can improve the space utilization inside the cabinet 1, reduce the occupied space of the cabinet 1, and facilitate the side-by-side arrangement of multiple cabinets 1, thereby achieving a good use effect.

[0062] 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 system, characterized in that: It includes an energy storage cabinet, and a battery pack, a cooling device and an energy storage converter arranged in the energy storage cabinet; The energy storage cabinet comprises a cabinet body with an opening on one side, and a cabinet door hinged on the cabinet body, wherein the cabinet body is divided into a battery compartment and an electrical compartment arranged vertically, and the battery compartment is divided into a plurality of accommodating spaces arranged vertically and stacked by a partition structure; The cooling device and the energy storage inverter are both arranged in the electrical compartment, and a water cooling plate is provided in the energy storage inverter. The cooling device is connected to the battery pack and the water cooling plate through a pipeline to cool the battery pack and the energy storage inverter. The energy storage inverter is electrically connected to the battery pack to convert electrical energy in both directions.

2. The energy storage system according to claim 1, characterized in that: The energy storage converter is provided with a guide rail, and the energy storage converter is slidably arranged in the electrical compartment through the guide rail.

3. The energy storage system according to claim 1, characterized in that: The partition structure includes a plurality of partition components spaced apart in the battery compartment along the height direction of the energy storage cabinet; Each of the partition components includes a partition block arranged on the left and right opposite sides of the battery compartment, and the partition block includes a mounting plate connected to the cabinet body, and a support plate supported on the bottom of the mounting plate. The battery pack is installed on the mounting plate, and a limit plate is provided on the rear side of the mounting plate to limit the displacement of the battery pack.

4. The energy storage system according to claim 1, characterized in that: A heat insulation layer is provided on a side of the cabinet door facing the battery compartment; and / or, The cabinet door is provided with a file box and a wire slot.

5. The energy storage system according to claim 1, characterized in that: The cabinet door is provided with an exhaust fan corresponding to the battery compartment and a shutter corresponding to the electrical compartment.

6. The energy storage system according to claim 1, characterized in that: The energy storage cabinet is provided with a detection component for detecting the inside of the battery compartment, and a controller connected to the detection component by signal; The detection component includes at least one of a temperature sensor, a smoke detector and a combustible gas detector.

7. The energy storage system according to claim 6, characterized in that: The energy storage cabinet is provided with a fire extinguishing device, which includes a storage tank storing a fire extinguishing agent and a solenoid valve for controlling the opening and closing of the storage tank, and the solenoid valve is connected to the controller signal.

8. The energy storage system according to claim 7, characterized in that: The fire extinguishing agent is perfluorohexanone or hot aerosol.

9. The energy storage system according to claim 6, characterized in that: The cabinet is provided with a display screen connected to the controller signal; and / or, The electrical warehouse is equipped with an EMS system and a BMS system.

10. The energy storage system according to any one of claims 1 to 9, characterized in that: The cabinet body is provided with a sealing ring arranged along the edge of the opening, and the cabinet door abuts against the sealing ring when the cabinet door is closed.

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