Industrial and commercial energy storage cabinet

Abstract

The invention discloses an industrial and commercial energy storage cabinet, and relates to the field of energy storage equipment, the industrial and commercial energy storage cabinet comprises a cabinet and internal components thereof, the cabinet is provided with an installation space with openings at the front end and the rear end, and the installation space comprises an electrical cabin, a fire-fighting cabin, a liquid cooling cabin, a battery pack storage cabin and an energy management cabin; the electrical cabin comprises a photovoltaic input air switch and a diesel generator input air switch, the photovoltaic input air switch is electrically connected with photovoltaic equipment through an external circuit, and the diesel generator input air switch is electrically connected with a diesel generator through an external circuit; the input power source of the energy storage cabinet is adjusted by changing the opening and closing states of the photovoltaic input air switch and the diesel generator input switch. According to the energy storage cabinet, the input power source of the energy storage cabinet is adjusted by changing the opening and closing states of the photovoltaic input air switch and the diesel generator input switch; the liquid cooling system is distributed in the installation space of the energy storage cabinet, and stable operation of the internal environment of the energy storage cabinet is guaranteed through cooperative work of multiple assemblies.

Description

Technical Field

[0001] This invention relates to the field of energy storage equipment, and more specifically to an industrial and commercial energy storage cabinet. Background Technology

[0002] An energy storage cabinet is a power device that integrates a large number of battery modules, energy conversion systems, and safety systems and installs them in a cabinet. It stores excess electrical energy when there is sufficient power and releases electrical energy during peak demand or power outages. It is a key device to support energy transformation and improve energy efficiency. It is a complete and ready-to-use energy storage power station unit that can maximize the overall energy utilization efficiency, ensure the safe and stable operation of the system, and create significant economic and environmental benefits.

[0003] Traditional energy storage cabinets rely on a single power input source and depend on a single grid connection point for operation. If this input source fails due to grid-side faults or generator-side problems, the energy storage system, lacking a backup power input channel, cannot fulfill its function of smoothing power fluctuations. This leads to power supply fluctuations in downstream loads linearly connected to the energy storage cabinet, affecting the continuity and stability of electrical equipment. Furthermore, as an integrated device, the energy storage cabinet has a complex wiring structure, which can hinder timely heat dissipation during operation, increasing energy consumption. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an industrial and commercial energy storage cabinet to resolve the issues described in the background section.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A commercial and industrial energy storage cabinet includes a cabinet and its internal components. The cabinet has installation spaces with openings at both the front and rear ends. The installation spaces include an electrical compartment, a fire protection compartment, a liquid cooling compartment, a battery pack storage compartment, and an energy management compartment. A ventilation baffle is installed on the top of the cabinet. The electrical compartment is equipped with circuit breaker components, including a photovoltaic input circuit breaker and a diesel generator input circuit breaker. The photovoltaic input circuit breaker is electrically connected to a photovoltaic device via an external line, and the diesel generator input circuit breaker is electrically connected to a diesel generator via an external line. By changing the opening and closing states of the photovoltaic input circuit breaker and the diesel generator input circuit breaker, the input power source of the energy storage cabinet is adjusted.

[0007] Preferably, the liquid-cooled chamber includes a liquid cooler, an inlet pipe, and an outlet pipe, both of which are sealed to the liquid cooler; the battery pack storage chamber includes an inlet port and an outlet port, the inlet pipe being sealed to the inlet port and the outlet pipe being sealed to the outlet port.

[0008] Preferably, the fire compartment is equipped with water fire-fighting pipes for connecting to an external water fire-fighting system; the energy management compartment is equipped with an energy storage converter, which has AC-DC conversion, DC-AC inversion and coordinated control functions with the energy management system.

[0009] Preferably, the electrical compartment is also equipped with a power converter, and the wiring harness connected to the air switch components is electrically connected to the power converter; the energy management compartment is also equipped with a power switch, and the wiring harness connected to the power switch is electrically connected to the energy storage converter.

[0010] Preferably, a semiconductor dehumidifier is installed in front of the battery pack in the battery pack storage compartment.

[0011] Preferably, the sprinkler head is connected to the perfluorohexanone fire extinguishing system via a gas pipe to form a battery pack thermal runaway fire extinguishing system; the water fire extinguishing pipeline is connected to external fire water to form an energy storage cabinet water fire extinguishing system.

[0012] Preferably, the sprinkler head is installed at the top inside the cabinet, the water fire extinguishing pipe is installed between the perfluorohexanone fire extinguishing system and the partition baffle, and the perfluorohexanone fire extinguishing system is sealed to the fire vent on the battery pack.

[0013] Preferably, the ventilation baffle is equipped with a vent valve, which has a one-way flow function to prevent excessive pressure inside the cabinet.

[0014] Preferably, the power converter is bolted to the fixed baffle one, and the fixed baffle one and the baffle seven are an integrated stepped structure. The perfluorohexanone fire extinguishing system is fixedly installed in the fire compartment through the baffle seven.

[0015] Preferably, the electrical compartment, liquid cooling compartment, and fire protection compartment share a rear cover with a vent, and the rear covers of the electrical compartment, liquid cooling compartment, fire protection compartment, battery pack storage compartment, and energy management compartment are all sealed and connected to the cabinet.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The power input system of the present invention uses multiple air switches to independently control the energy storage cabinet circuit. By changing the opening and closing state of the air switches, the power input source of the energy storage cabinet is adjusted, thereby maintaining the stable operation of the energy storage cabinet system and ensuring the continuity and stability of power supply to the external load equipment of the energy storage cabinet.

[0018] 2. The liquid cooling system of the present invention works in a multi-component collaborative manner, with each component distributed in the energy storage cabinet installation space, giving full play to the role of the liquid cooler and ensuring the stability of the internal environment of the energy storage cabinet during operation.

[0019] 3. The semiconductor dehumidifier installed in the battery pack storage compartment of this invention can prevent condensation and avoid condensation from causing short circuits between live terminals and circuit boards, which could lead to arcing, sparking, or even fire.

[0020] 4. The perfluorohexanone fire extinguishing system installed in the fire compartment of this invention can achieve real-time detection and rapid response, extinguishing fires at the source and effectively preventing the spread of flames between densely arranged batteries. Attached Figure Description

[0021] Figure 1 This is a front view of the energy storage cabinet in this invention;

[0022] Figure 2 This is a front structural view of the battery pack storage compartment in this invention;

[0023] Figure 3 This is a front structural view of the electrical compartment and fire compartment in this invention;

[0024] Figure 4 This is a front structural view of the liquid-cooled compartment in this invention;

[0025] Figure 5 This is a front structural view of the energy management compartment in this invention;

[0026] Figure 6 This is a rear structural diagram of the energy storage cabinet in this invention;

[0027] Figure 7 This is a diagram showing the internal structure of the ventilation baffle in this invention;

[0028] Figure 8 This is a front view of the air switch component in this invention;

[0029] Figure 9 This is a rear structural diagram of the power switch in this invention.

[0030] The numbers on the map are:

[0031] 1. Ventilation baffle; 10. Sprinkler head; 101. Semiconductor dehumidifier; 11. Nut hole one; 111. Vent valve; 1111. Cabinet; 112. Mounting hole six; 12. Vent outlet; 13. Partition baffle one; 14. Partition baffle two; 15. Lifting ring; 16. Nut hole two; 17. Nut hole three; 2. Electrical compartment; 21. Fixed baffle five; 211. Electrical switch components; 212. Wiring port three; 213. Mounting hole five; 22. Photovoltaic input air switch; 23. Diesel generator input air switch; 24. Energy storage converter air switch; 3. Fire compartment; 31. Baffle seven; 32. Water fire-fighting pipeline; 311. Perfluorohexanone fire extinguishing system; 312. Mounting hole seven; 4. Fixed baffle one; 41. Wiring hole one; 42. Power converter; 43. Wiring hole 2; 44. Mounting hole 1; 5. Liquid cooling compartment; 51. Liquid inlet pipe; 52. Fixing block 2; 521. Mounting hole 2; 53. Liquid cooler; 54. Liquid outlet pipe; 55. Liquid inlet mounting hole; 56. Liquid outlet mounting hole; 6. Energy management compartment; 61. Power switch; 62. Wiring hole 3; 63. Energy storage converter; 64. Fixing baffle 3; 641. Mounting hole 3; 65. Wiring port 1; 66. Wiring port 2; 7. Battery pack storage compartment; 71. Battery pack; 72. Battery pack interface; 73. Fixing block 1; 74. Mounting hole 4; 75. Fire vent; 76. Liquid inlet; 77. Liquid outlet; 78. Battery pack base; 79. Mounting hole 8; 8. Liquid outlet interface; 9. U-shaped saddle buckle. Detailed Implementation

[0032] To better understand the purpose, structure, and function of this invention, a detailed description of an industrial and commercial energy storage cabinet proposed in this invention is provided below with reference to the accompanying drawings. It should be emphasized that the structural forms described in the following embodiments are merely illustrative, and the industrial and commercial energy storage cabinet involved in this invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention.

[0033] like Figure 1 , 8As shown, the cabinet 1111 in this embodiment has installation space with openings at both the front and rear ends. The installation space includes an electrical compartment 2, a fire protection compartment 3, a liquid cooling compartment 5, a battery pack storage compartment 7, and an energy management compartment 6. Preferably, the installation space is divided into left and right sides. The left side, from top to bottom, contains the electrical compartment 2, the fire protection compartment 3, and the liquid cooling compartment 5. The right side has the battery pack storage compartment 7 at the top and the energy management compartment 6 at the bottom. A ventilation baffle 1 is installed on the top of the cabinet 1111. An air switch component 211 is installed inside the electrical compartment 2, and the fixing baffle 5 21 is bolted in place through mounting holes 5 213. A water fire protection pipe 32 is installed inside the fire protection compartment 3, facing the front of the cabinet, for connecting to an external water fire protection system. The air switch component 211 is fixed, including a photovoltaic input air switch 22, a diesel generator input air switch 23, and an energy storage converter air switch 24. The photovoltaic input air switch 22 is electrically connected to the photovoltaic equipment through an external line, and the diesel generator input air switch 23 is electrically connected to the diesel generator through an external line. The photovoltaic equipment and the diesel generator work together to charge the energy storage cabinet. By changing the opening and closing state of the photovoltaic input air switch 22 and the diesel generator input switch 23, the input power source of the energy storage cabinet is adjusted.

[0034] like Figure 1 , 2 As shown in Figure 4, the liquid cooler 53, the inlet pipe 51, and the outlet pipe 54 are installed in the liquid cooling chamber 5. The inlet pipe 51 is connected to the liquid cooler 53 through the inlet mounting hole 55, and the outlet pipe 54 is connected to the liquid cooler 53 through the outlet mounting hole 56. A sealing ring is used to seal the connection. This method effectively utilizes the function of the liquid cooler and provides a stable environment for the operation of the energy storage cabinet. In the battery pack storage chamber 7, the inlet pipe 51 is sealed to the inlet hole 76 through a sealing ring connector, and the outlet pipe 54 is sealed to the outlet hole 77 through a sealing ring connector. The bottom of the outlet pipe 54 is provided with an outlet interface 8. The inlet pipe 51 and the outlet pipe 54 are arranged internally and externally, fitting snugly against the cabinet body 1111. Preferably, the outlet pipe 54 is external, and the inlet pipe 51 is internal. This arrangement makes the internal structure of the energy storage more aesthetically pleasing.

[0035] like Figure 5As shown, the energy management compartment 6 is equipped with an energy storage converter 63, which encompasses AC-DC conversion, DC-AC inversion, and collaborative control functions with the energy management system. The AC-DC conversion module is responsible for converting the AC power from the grid side into stable DC power, enabling efficient and controllable charging of the battery system. This process requires power factor correction and low harmonic distortion characteristics. The DC-AC inversion module performs the reverse conversion, inverting the DC power stored in the battery into AC power that meets grid quality requirements, and feeding it into the grid or supplying it to local loads. Simultaneously, the intelligent control unit built into the converter communicates in real time, receiving charging and discharging power commands, operating mode switching, and protection parameter settings. This collectively enables flexible adjustment of the system power flow, dynamic optimization of battery status, and smooth switching between grid-connected and off-grid modes, ultimately supporting the energy storage system in peak shaving and valley filling, and grid support for multiple application scenarios.

[0036] like Figure 1 , 3 As shown in Figures 5 and 9, the air switch component 211 and the power converter 42 are installed in the electrical compartment 2. The wiring harness connected to the air switch component 211 is electrically connected to the power converter 42 through the second wiring hole 43. The power switch 61 and the energy storage converter 63 are installed in the energy management compartment 6. The wiring harness connected to the power switch 61 is electrically connected to the energy storage converter 63 through the third wiring hole 62. The energy storage converter 63 is fixed to the cabinet by bolts through the mounting holes 641 on the fixing baffle 64. Specifically, the lower end of the air switch component 211 is provided with a wiring port 3 212 for connecting the wiring harness, and the wiring harness of the air switch component 211 is connected to the power switch 61 through the wire hole 1 41. The rear of the power switch 61 is provided with a wiring port 1 65, and the front end of the energy storage converter 63 is provided with a wiring port 2 66. The wiring harness of the power switch 61 connected to the wiring port 1 65 is connected to the wiring harness of the energy storage converter 63 connected to the wiring port 2 66 through the wire hole 3 62.

[0037] like Figure 2 As shown, specifically, battery packs 71 are arranged from top to bottom in the battery pack storage compartment 7. Each battery pack is connected by a wiring harness through its own battery pack wiring port 72 to form a circuit. The front end of the fixing block 73 is bolted to the battery pack base 78 through the mounting hole 79, and the rear end of the fixing block 73 is bolted to the cabinet 1111 through the mounting hole 74.

[0038] like Figure 1 , 2As shown in Figure 4, the liquid inlet pipe 51 and the liquid outlet pipe 54 are fixed to the cabinet 1111 by U-shaped saddle clips 9. This fixing of the liquid cooling pipes greatly reduces the occurrence of loosening at the pipe joints during long-distance transportation of the energy storage cabinet, ensuring that the liquid cooler can operate normally and efficiently after the energy storage cabinet arrives at its destination. A semiconductor dehumidifier 101 is installed in front of the battery pack 71 and is fixed to the battery pack storage compartment 7 by bolts.

[0039] like Figure 1 , 3 As shown in Figure 6, the sprinkler head 10 is connected to the perfluorohexanone fire extinguishing system 311 via a gas pipe to form a dedicated fire extinguishing system for battery pack thermal runaway; the water fire extinguishing pipe 32 is connected to external fire water to form a water fire extinguishing system covering the entire energy storage cabinet; the sprinkler head 10 is installed on the top inside the cabinet, and the fire extinguishing pipe 32 is installed between the perfluorohexanone fire extinguishing system 311 and the partition baffle 13, and is bolted to the partition baffle 13 via clamps; the perfluorohexanone fire extinguishing system 311 and the fire outlet 75 on the battery pack 71 are sealed together via a gas pipe.

[0040] like Figure 7 As shown, multiple identical air vents 111 are evenly installed inside the ventilation baffle 1. The number of air vents can be selected as needed. Specifically, in this embodiment, six air vents are preferred. The air vents are arranged horizontally with equal spacing to form a horizontal air vent arrangement.

[0041] like Figure 1 , 3 As shown in Figure 6, the power converter 42 is bolted to the fixed baffle 4 through the mounting hole 44. The fixed baffle 4 and the baffle 31 are an integrated stepped structure. The front arm is the baffle 31 and the rear arm is the fixed baffle 4. The perfluorohexanone fire extinguishing system 311 is installed through the baffle 31 and bolted to the fire compartment 3 through the mounting hole 312.

[0042] like Figure 6 As shown, the top of the cabinet 1111 is equipped with lifting rings 15, preferably welded to the four corners of the top of the cabinet and the top of the cabinet corresponding to the partition plate of the electrical compartment 2, so as to facilitate the overall transportation of the cabinet. The battery pack storage compartment is bolted to the back cover through nut hole 2 16. The electrical compartment 2, liquid cooling compartment 3 and fire compartment 5 share a back cover and are equipped with a vent 12. The back cover is bolted to the cabinet 1111 through nut hole 11. The energy management compartment is bolted to the cabinet through nut hole 3 17. The part of the back cover that is in contact with the cabinet is covered with a sealing strip. The bolt fixing makes the back cover completely fit with the cabinet, which improves the overall sealing of the cabinet and reduces the occurrence of condensation in the energy storage cabinet.

[0043] Working principle of this invention: The energy storage cabinet is connected to a diesel generator, photovoltaic charging equipment, and the power grid via external lines, serving as the power source for the energy storage cabinet. An air switch 66 is connected to the load via an external line. When the power source is sufficient or during off-peak hours, the energy storage converter 63 and power converter 42 convert the AC power obtained from the power source into DC power and transmit the electrical energy to a battery cluster composed of multiple battery packs 71 for storage. The energy storage converter 63 monitors the internal voltage, temperature, and current parameters of each battery pack 71 in real time via signals to ensure the charging process is in optimal condition. At this time, electrical energy is converted into chemical energy and stored in the battery pack 71. When grid demand increases or during peak hours, the energy storage converter 63 issues a discharge command. The energy storage converter 63 and power converter 42 then discharge the DC power output from the battery pack 71. The power is inverted to standard AC power and fed back to the load equipment to provide stable power. During this period, continuous equalization control is performed to ensure coordinated discharge of each battery module. When the energy storage cabinet is working, the liquid cooler 53 provides cold air to the battery pack 71 to keep the inner wall of the battery pack 71 cool. The semiconductor dehumidifier 101 removes the coolant to keep the inside of the battery pack 71 dry. Together, they maintain the battery pack 71 at the optimal operating temperature. When the energy storage cabinet's fire protection system monitors in real time through the composite detector inside the battery pack 71, once signs of battery thermal runaway are detected, the power supply to the equipment will be cut off immediately to prevent the fire from spreading. The energy storage converter 63 will perform data analysis to accurately locate the faulty battery pack 71 and instantly release perfluorohexanone environmentally friendly fire extinguishing agent for precise suppression. Its unique chemical cooling effect can effectively prevent the battery from reigniting.

[0044] During use, the energy storage cabinet features dual power input modes. By changing the opening and closing states of the photovoltaic input air switch 22 and the diesel generator input switch 23, the power input source of the energy storage cabinet can be adjusted, ensuring the stable operation of the external load at critical moments. The energy storage cabinet uses a vacuum machine to vacuum the liquid-cooled pipes and the gas inside the liquid chiller 53 from the liquid outlet interface, greatly improving the efficiency of the liquid chiller 53. The liquid chiller 53 is fixed to the cabinet by bolts through mounting holes 521 on the fixing block 52. By sealing the liquid-cooled pipes to the inlet pipe 55 and the outlet pipe 54 respectively, a clearly identifiable temperature gradient can be established for the liquid chiller 53, further improving its operating efficiency.

[0045] A semiconductor dehumidifier 101 is installed in front of the battery pack storage compartment 7 and the battery pack 71. The semiconductor dehumidifier 101 can prevent condensation and avoid condensation from causing short circuits between live terminals and circuit boards, which could lead to arcing, sparking, or even fire. At the same time, it can prevent the water vapor generated by condensation from accelerating the oxidation and corrosion of copper busbars and terminals, increasing contact resistance, thereby causing local overheating, reducing the insulation performance of electrical equipment, and creating a risk of leakage.

[0046] A perfluorohexanone fire suppression system 311 is installed in the fire compartment 3 of the energy storage cabinet. The perfluorohexanone fire suppression system 311 can achieve real-time detection and rapid response. When thermal runaway occurs inside the battery pack and early smoke or flammable gas is generated, the detection network can detect it instantly and deliver the perfluorohexanone fire extinguishing agent accurately and directly to the inside of the burning battery pack through the gas pipe, so as to smother the fire from the source and effectively prevent the flames from spreading between the densely arranged batteries. At the same time, this physical isolation method of fire extinguishing agent delivery avoids the risk of directly introducing circuits and sensors into the high-voltage battery compartment, improves the safety and reliability of the system, and provides a crucial "directional defense line" for battery safety.

[0047] The vent valve 111 installed on the top of the cabinet 1111 can release the high-pressure gas inside the cabinet, thus stabilizing the gas pressure inside and outside the cabinet 1111. This prevents the cabinet from being damaged by excessive gas pressure inside the cabinet 1111. The ventilation structure of the ventilation baffle greatly improves the working efficiency of the vent valve and reduces the damage to the energy storage cabinet caused by long-term operation.

[0048] It is understood that the present invention has been described with reference to the above figures. Various changes or equivalent substitutions can be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by the present invention.

Claims

1. An industrial and commercial energy storage cabinet, comprising: The cabinet (1111) and its internal components are characterized in that: the cabinet (1111) has an installation space with openings at both the front and rear ends, the installation space including an electrical compartment (2), a fire compartment (3), a liquid cooling compartment (5), a battery pack storage compartment (7), and an energy management compartment (6), a ventilation baffle (1) is installed on the top of the cabinet (1111), and an air switch component (211) is installed inside the electrical compartment (2), the air switch component (211) including a photovoltaic input air switch (22) and a diesel generator input air switch (23), the photovoltaic input air switch (22) is electrically connected to the photovoltaic equipment through an external line, and the diesel generator input air switch (23) is electrically connected to the diesel generator through an external line, and the input power source of the energy storage cabinet is adjusted by changing the opening and closing state of the photovoltaic input air switch (22) and the diesel generator input switch (23).

2. The industrial and commercial energy storage cabinet according to claim 1, characterized in that: The liquid-cooled chamber (5) includes a liquid cooler (53), an inlet pipe (51), and an outlet pipe (54), both of which are sealed to the liquid cooler (53). The battery pack storage chamber (7) includes an inlet port (76) and an outlet port (77), with the inlet pipe (51) sealed to the inlet port (76) and the outlet pipe (54) sealed to the outlet port (77).

3. The industrial and commercial energy storage cabinet according to claim 2, characterized in that: The fire compartment (3) is equipped with a water fire-fighting pipe (32) for connecting to an external water fire-fighting system; the energy management compartment (6) is equipped with an energy storage converter (63), which has AC-DC conversion, DC-AC inversion and coordinated control functions with the energy management system.

4. The industrial and commercial energy storage cabinet according to claim 3, characterized in that: The electrical compartment (2) is also equipped with a power converter (42), and the wiring harness connected to the air switch component (211) is electrically connected to the power converter (42); the energy management compartment (6) is also equipped with a power switch (61), and the wiring harness connected to the power switch (61) is electrically connected to the energy storage converter (63).

5. The industrial and commercial energy storage cabinet according to claim 4, characterized in that: A semiconductor dehumidifier (101) is installed in front of the battery pack (71) in the battery pack storage compartment (7).

6. The industrial and commercial energy storage cabinet according to claim 5, characterized in that: The sprinkler head (10) is connected to the perfluorohexanone fire extinguishing system (311) via a gas pipe to form a battery pack thermal runaway fire extinguishing system; the water fire extinguishing pipe (32) is connected to fire water to form an energy storage cabinet water fire extinguishing system.

7. The industrial and commercial energy storage cabinet according to claim 6, characterized in that: The sprinkler head (10) is installed at the top inside the cabinet (1111), the water fire pipe (32) is installed between the perfluorohexanone fire extinguishing system (311) and the partition baffle (13), and the perfluorohexanone fire extinguishing system (311) is sealed to the fire vent (75) on the battery pack (71).

8. The industrial and commercial energy storage cabinet according to claim 7, characterized in that: The ventilation baffle (1) is equipped with multiple ventilation valves (111), which have a one-way conduction function to prevent excessive pressure inside the cabinet.

9. The industrial and commercial energy storage cabinet according to claim 8, characterized in that: The power converter (42) is bolted to the fixed baffle (4). The fixed baffle (4) and the baffle (31) are an integrated stepped structure. The perfluorohexanone fire extinguishing system (311) is fixedly installed in the fire compartment (3) through the baffle (31).

10. The industrial and commercial energy storage cabinet according to claim 9, characterized in that: The electrical compartment (2), liquid cooling compartment (3) and fire protection compartment (5) share a rear cover with a vent (12). The rear covers of the electrical compartment (2), liquid cooling compartment (3), fire protection compartment (5), battery pack storage compartment (7) and energy management compartment (6) are all sealed and connected to the cabinet (1111).

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