Battery energy storage container and battery energy storage equipment

Abstract

The utility model provides a battery energy storage container and battery energy storage equipment, the battery energy storage container comprises a box body and a fire extinguishing system, the box body is used for accommodating a battery pack, the fire extinguishing system comprises an aerosol fire extinguishing device and a water spray fire extinguishing device, the aerosol fire extinguishing device is arranged in the box body, and the water spray fire extinguishing device is arranged in the box body. The battery box is used for being positioned above the battery pack; the water spraying fire extinguishing device comprises a fire fighting pipeline and a spraying head, one end of the fire fighting pipeline is used for being connected with a fire fighting water source, the other end of the fire fighting pipeline is connected with the spraying head, and the spraying head is arranged in the box body and used for being located above the battery pack. The aerosol fire extinguishing device and the water spraying fire extinguishing device are integrated in the battery energy storage container, and the aerosol fire extinguishing device and the spraying head are both located above the battery pack, so that the cost is reduced, the occupied space is reduced, the maintenance difficulty is reduced, and the disaster prevention effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a battery energy storage container and a battery energy storage device. Background Art

[0002] In battery energy storage systems, fire protection systems are very important facilities used to monitor and respond to possible fire incidents. In many operating scenarios, the fire protection system is integrated in the form of a perfluorohexanone fire protection solution. The production and storage costs of the perfluorohexanone fire protection solution are relatively high, which increases the cost of the overall fire protection system. Considering its special physical and chemical properties, the design and installation of the system are relatively complex, requiring a larger space to place storage tanks and piping systems, which takes up more space. In order to comply with environmental regulations and standards, perfluorohexanone fire extinguishing agents require special handling and recycling methods, which increases the complexity and cost of maintenance work. In some cases, especially in certain types of battery failures or thermal runaway scenarios, the perfluorohexanone fire protection solution cannot fully and effectively control or extinguish the fire, and the control effect is limited. Utility Model Content

[0003] The embodiments of the present utility model provide a battery energy storage container and a battery energy storage device, which can improve the technical problems of the related art battery fire protection solutions such as high cost, large space occupation, complex maintenance and limited disaster prevention effect.

[0004] In a first aspect, an embodiment of the present invention provides a battery energy storage container, comprising:

[0005] A box body and a fire protection system, wherein the box body is used to accommodate a battery pack, and the fire protection system comprises:

[0006] an aerosol fire extinguishing device, disposed in the box and configured to be located above the battery pack; and

[0007] A water sprinkler fire extinguishing device includes a fire-fighting pipe and a sprinkler head, one end of the fire-fighting pipe is used to connect to a fire-fighting water source, and the other end of the fire-fighting pipe is connected to the sprinkler head. The sprinkler head is arranged in the box and is used to be located above the battery pack.

[0008] In one embodiment, the box body is provided with an electrical compartment and a battery compartment spaced apart from each other, the battery compartment is used to accommodate a battery pack, the aerosol fire extinguishing device and the sprinkler head are both provided in the battery compartment, and the fire protection system further includes:

[0009] a fire detector, disposed in the battery compartment; and

[0010] A fire-fighting host is arranged in the electrical compartment;

[0011] The fire host is respectively connected to the fire detector and the aerosol fire extinguishing device via signals.

[0012] In one embodiment, the fire detector is arranged corresponding to the pressure relief port of the battery pack; and / or,

[0013] The fire detector includes at least one of a smoke detector, a temperature detector, and a combustible gas detector.

[0014] In one embodiment, the fire protection system further includes a fire alarm device, which is disposed on the outside of the box and is signal-connected to the fire host.

[0015] In one embodiment, the fire protection system further includes a manual starting device, which is disposed on the outside of the box and is signal-connected to the fire control host.

[0016] In one embodiment, the box body is provided with a first air vent and a second air vent, and the first air vent and the second air vent are both connected to the battery compartment;

[0017] The battery energy storage container further includes a louver structure and a fan. The louver structure is provided at the first air outlet, and the fan is provided at the second air outlet.

[0018] In one embodiment, in the height direction of the box body, the first air outlet is located below the second air outlet, and the fan is used to discharge the gas in the battery compartment.

[0019] In one embodiment, the box body is provided with a mounting hole, and the mounting hole is communicated with the battery compartment;

[0020] The battery energy storage container further includes an explosion venting plate, which is installed in the installation hole.

[0021] In one embodiment, the mounting hole is provided on the top of the box; and / or,

[0022] There are multiple sprinkler heads, and the multiple sprinkler heads are distributed along the first direction. There are multiple aerosol fire extinguishing devices, and the multiple aerosol fire extinguishing devices are distributed along the first direction. There are multiple fire detectors, and the multiple fire detectors are distributed along the first direction. In the second direction, the multiple aerosol fire extinguishing devices are located between the multiple sprinkler heads and the multiple fire detectors.

[0023] In a second aspect, an embodiment of the present invention provides a battery energy storage device, comprising the battery energy storage container as described above, and a battery pack, wherein the battery pack is installed in the battery energy storage container.

[0024] Beneficial effects of the embodiments of the present utility model:

[0025] In an embodiment of the present invention, an aerosol fire extinguishing device and a water sprinkler fire extinguishing device are integrated in a battery energy storage container. Compared with the use of special gases such as perfluorohexanone, the aerosol fire extinguishing device and the water sprinkler fire extinguishing device have lower costs. The aerosol fire extinguishing device itself is relatively small in size and does not require a large storage tank to store the fire extinguishing agent. It can be installed more compactly with the water sprinkler fire extinguishing device to reduce space occupancy. The aerosol fire extinguishing device and the sprinkler head are both located above the battery pack, which can better cover the battery pack, thereby quickly and effectively controlling the fire. The combination of the two fire extinguishing methods and the modular design are relatively simple to maintain. It can also more comprehensively respond to different types of fire situations, improve the overall disaster prevention effect, thereby reducing costs, reducing occupied space, reducing maintenance difficulty, and improving disaster prevention effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a three-dimensional schematic diagram of a battery energy storage container provided by an embodiment of the present utility model;

[0028] Figure 2 yes Figure 1 A front view schematic diagram of a battery energy storage container;

[0029] Figure 3 yes Figure 1 A schematic top view of a battery energy storage container;

[0030] Figure 4 yes Figure 1 A side view of the battery storage container.

[0031] Reference numerals:

[0032] 100. Battery energy storage container; 1. Fire protection system; 11. Aerosol fire extinguishing device; 12. Water sprinkler fire extinguishing device; 121. Fire protection pipe; 122. Sprinkler head; 13. Fire detector; 131. Smoke detector; 132. Temperature detector; 133. Combustible gas detector; 14. Fire control unit; 15. Fire alarm system; 151. Alarm bell; 152. Sound and light alarm; 16. Manual starting device; 161. Hand pull box; 2. Louver structure; 3. Fan; 4. Explosion vent panel; 5. Cables; 6. Water connector; 7. Maintenance switch; 8. Emergency stop switch. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0034] This application proposes a battery energy storage container and a battery energy storage device. Figures 1 to 4 These are some embodiments of the battery energy storage container of the present application.

[0035] See also Figures 1 to 4 In some embodiments of the present application, the battery energy storage container 100 includes a box body (in order to clearly display the internal structure of the box body, the box body is hidden and not shown in the figure), and a fire protection system 1, wherein the box body is used to accommodate the battery pack. The box body is usually a closed structure with certain fireproof and heat-insulating properties to prevent the external environment from affecting the battery.

[0036] The fire protection system 1 includes an aerosol fire extinguishing device 11, which is arranged in the box and is used to be located above the battery pack. The aerosol fire extinguishing device 11 is an efficient and environmentally friendly fire extinguishing method. It suppresses flames and reduces oxygen supply by generating a mixture containing tiny solid particles and gas. Since the aerosol can be well diffused throughout the space, the aerosol fire extinguishing device 11 is arranged above the battery pack to ensure that once activated, the aerosol can quickly diffuse and cover the entire battery pack area, effectively suppressing the spread of fire.

[0037] The fire protection system 1 also includes a water sprinkler fire extinguishing device 12, which includes a fire pipe 121 and a sprinkler head 122. One end of the fire pipe 121 is used to connect to a fire water source, and the other end of the fire pipe 121 is connected to the sprinkler head 122. The sprinkler head 122 is disposed within the housing and is positioned above the battery pack. The water sprinkler fire extinguishing device 12 sprays water onto the battery pack through the sprinkler head 122, cooling it and isolating it from oxygen. The sprinkler head 122 is also positioned above the battery pack to ensure that the water mist evenly covers the surface of the battery pack, quickly reducing the temperature and preventing the flame from continuing to burn. Specifically, a water connector 6 is provided at one end of the fire pipe 121, which is exposed on the outside of the housing to facilitate connection to an external fire water source.

[0038] In the technical solution of the present application, an aerosol fire extinguishing device 11 and a water sprinkler fire extinguishing device 12 are integrated in a battery energy storage container 100. Compared with the use of special gases such as perfluorohexanone, the aerosol fire extinguishing device 11 and the water sprinkler fire extinguishing device 12 have lower costs. The aerosol fire extinguishing device 11 itself is relatively small in size and does not require a large storage tank to store the fire extinguishing agent. It can be installed more compactly with the water sprinkler fire extinguishing device 12 to reduce space occupancy. The aerosol fire extinguishing device 11 and the sprinkler head 122 are both located above the battery pack, which can better cover the battery pack, thereby quickly and effectively controlling the fire. The combination of the two fire extinguishing methods and the modular design make maintenance relatively simple. It can also more comprehensively respond to different types of fire situations and improve the overall disaster prevention effect, thereby reducing costs, reducing occupied space, reducing maintenance difficulty, and improving disaster prevention effects.

[0039] In some embodiments of the present application, an electrical compartment and a battery compartment are provided in the box body, the battery compartment is used to accommodate the battery pack, the aerosol fire extinguishing device 11 and the sprinkler head 122 are both provided in the battery compartment, and the fire protection system 1 further includes a fire detector 13 and a fire host 14, the fire detector 13 is provided in the battery compartment; the fire host 14 is provided in the electrical compartment; wherein the fire host 14 is respectively connected to the fire detector 13 and the aerosol fire extinguishing device 11 by signal. In these embodiments, when the fire detector 13 detects a fire signal, it will send the signal to the fire host 14. After receiving the signal, the fire host 14 will start the aerosol fire extinguishing device 11 and release the aerosol fire extinguishing agent into the battery compartment to quickly suppress the fire. At the same time, if necessary, the fire host 14 can also The water sprinkler fire extinguishing device 12 is activated to spray water mist into the battery compartment through the sprinkler head 122 to further cool the battery pack and prevent the fire from spreading. The fire detector 13 is set in the battery compartment to ensure timely detection of fire hazards and improve response speed. The fire host 14 is set in the electrical compartment and is connected to the fire detector 13 and the aerosol fire extinguishing device 11 signal, which can realize automatic control, reduce the need for human intervention, and improve the reliability and efficiency of the system. In this way, the high efficiency of the aerosol fire extinguishing device 11 and the cooling effect of the water sprinkler fire extinguishing device 12 are utilized, combined with the automatic control of the fire detector 13 and the fire host 14, to provide efficient and reliable fire protection for the battery energy storage container 100, thereby significantly improving the safety and stability of the battery energy storage system.

[0040] The present application does not limit the specific method of signal connection between the fire host 14 and the fire detector 13, and the aerosol fire extinguishing device 11. A wireless connection can be used, for example, wireless radio frequency technology is used for data transmission. In some embodiments of the present application, the fire host 14 is connected to the fire detector 13 and the aerosol fire extinguishing device 11 through a cable 5, that is, a wired connection is realized between the fire host 14 and the fire detector 13 and the aerosol fire extinguishing device 11. The wired connection is not easily interfered with and is more stable and reliable than a wireless connection. Once the installation is completed, the wired system usually does not require frequent maintenance or adjustment. Since the signal is transmitted through a physical line, it is not easily illegally invaded or interfered with, thereby improving the reliability, safety and maintainability of the system.

[0041] In some embodiments of the present application, the fire detector 13 is used to correspond to the pressure relief port of the battery pack. It can be understood that the pressure relief port is usually the location where gas is first discharged from the battery pack under abnormal conditions such as thermal runaway. Therefore, setting the fire detector 13 here can more accurately capture abnormal conditions. By setting the fire detector 13 near the pressure relief port of the battery pack, accurate positioning and rapid response to initial fires can be achieved. Once an abnormal condition occurs in the battery pack, such as thermal runaway, the abnormal signal can be detected in time, and the fire protection system 1 can be quickly started to improve the safety and reliability of the system.

[0042] In some embodiments of the present application, the fire detector 13 includes at least one of a smoke detector 131, a temperature detector 132, and a combustible gas detector 133. The smoke detector 131 is used to detect the presence of smoke. In the early stages of a fire, smoke is one of the earliest signs to appear. Therefore, the smoke detector 131 can detect a fire very quickly and can detect a smoldering fire, that is, a situation where there is no obvious flame in the initial stage but a large amount of smoke is generated. The temperature detector 132 is used to detect an abnormal increase in temperature. When the temperature or the temperature rise rate reaches a set threshold, the temperature detector 132 will trigger an alarm signal and can detect rapidly developing fires, especially when there is less smoke or it is difficult to detect. The combustible gas detector 133 is used to detect the presence of combustible gas. In a battery energy storage system, the battery pack may release combustible gas under abnormal conditions such as thermal runaway. The combustible gas detector 133 can detect potential explosion risks and prevent explosion accidents caused by gas accumulation in advance. By setting up multiple types of fire detectors 13, it can be ensured that fire signals can be detected in time in different types of fire situations, thereby improving the response speed and accuracy of the system.

[0043] This application does not limit the type and quantity of the combustible gas detector 133. Depending on the battery type and chemical composition, the combustible gas detector 133 includes at least one of a hydrogen detector, a carbon monoxide detector, a methane detector, a volatile organic compound detector, and a hydrogen sulfide detector.

[0044] In some embodiments of the present application, the fire protection system 1 also includes a fire alarm device 15, which is arranged on the outside of the box and is connected to the fire host 14 signal. In these embodiments, the fire alarm device 15 is arranged on the outside of the box and is connected to the fire host 14 signal, so that when a fire signal is detected, not only can the internal fire protection system 1 be started, but the alarm can also be automatically triggered, and external personnel can also be informed of the fire situation in time so that necessary evacuation and other emergency measures can be taken, thereby improving the response speed and reliability of the system and significantly improving the safety of the battery energy storage system.

[0045] This application does not limit the type and quantity of the fire alarm device 15. For example, the fire alarm device 15 includes an audible and visual alarm 152, an alarm bell 151, etc. By setting up multiple types of fire alarm devices 15, the flexibility and adaptability of the system can be improved, ensuring that the best safety protection can be provided in various situations.

[0046] In some embodiments of the present application, the fire protection system 1 also includes a manual starting device 16, which is arranged on the outside of the box. The manual starting device 16 is connected to the fire host 14 signal. In these embodiments, through the setting of the manual starting device 16, in the event of a failure or delayed response of the automated fire protection system 1, the fire protection system 1 can still be started by manual operation, thereby improving the safety of the system. The manual starting device 16 is arranged on the outside of the box to facilitate quick identification and operation by external personnel.

[0047] The present application does not limit the specific type of the manual starting device 16. It is understandable that the manual starting device 16 generally includes a button, a pull rope or a handle. Specifically, in some embodiments of the present application, the manual starting device 16 includes a pull box 161. The pull box 161 is a closed box containing a pull rope or a pull rod. There is a simple mechanical structure inside for converting the action of the pull rope or the pull rod into a switch signal. The user needs to open the lid or door of the pull box 161, and then pull the pull rope or pull rod inside to start the fire protection system 1. The lid or door of the pull box 161 can play a certain protective role, reduce the risk of misoperation, and thus improve safety and reliability.

[0048] In some embodiments of the present application, the battery energy storage container 100 further includes an emergency stop switch 8 and a maintenance switch 7. Both the emergency stop switch 8 and the maintenance switch 7 are arranged on the outside of the box to ensure that the power supply can be quickly cut off in maintenance or emergency situations to protect the safety of personnel and equipment.

[0049] In some embodiments of the present application, a first air outlet (not shown in the figure, refer to the position of the louver structure 2 for understanding) and a second air outlet (not shown in the figure, refer to the position of the fan 3 for understanding) are provided on the box body, and the first air outlet and the second air outlet are both connected to the battery compartment; the battery energy storage container 100 also includes a louver structure 2 and a fan 3, the louver structure 2 is provided at the first air outlet, and the fan 3 is provided at the second air outlet. In these embodiments, the first air outlet and the second air outlet are both connected to the battery compartment for ventilation of the battery compartment. The louver structure 2 can adjust the direction and flow of the airflow entering the battery compartment, and the fan 3 can actively discharge the hot air in the battery compartment, accelerate air circulation, and significantly improve the ventilation and heat dissipation performance of the battery energy storage container 100, ensure that the temperature in the battery compartment is within a safe range, reduce the accumulation of harmful gases, and improve safety.

[0050] In some embodiments of the present application, in the height direction of the box, the first air outlet is located below the second air outlet, and the fan 3 is used to discharge the gas in the battery compartment. In these embodiments, due to the principle that hot air naturally rises, setting the fan 3 at a higher position can more effectively discharge the hot air, and the first air outlet is located at a lower position, which can introduce cooler fresh air. Through this high and low position design, the natural convection effect can be utilized to improve the efficiency of the ventilation system. Fresh air enters from below and hot air is discharged from above, forming a good air circulation. In this way, through effective ventilation, the ventilation and heat dissipation performance of the battery energy storage container 100 is further improved, ensuring that the temperature in the battery compartment is within a safe range, reducing the accumulation of harmful gases, and improving safety.

[0051] In some embodiments of the present application, a mounting hole is provided on the box body (not shown in the figure, refer to the position of the explosion venting plate 4 for understanding), and the mounting hole is connected to the battery compartment; the battery energy storage container 100 also includes an explosion venting plate 4, which is installed in the mounting hole. In these embodiments, in the event of an explosion or an abnormal increase in pressure in the battery compartment, the explosion venting plate 4 can be broken or opened in time to release the internal pressure, thereby preventing damage to the box body or the explosion from affecting the surrounding environment, thereby improving the reliability and safety of the system.

[0052] In some embodiments of the present application, the mounting hole is provided at the top of the box body. It can be understood that when an explosion occurs in the battery compartment or the pressure increases abnormally, the top is the place where gas and steam are most likely to gather. Setting the explosion relief plate 4 at the top can ensure that when the pressure reaches the critical point, the pressure can be released quickly to prevent damage to the box body. The explosion relief plate 4 on the top can release the high-pressure gas generated by the explosion upward, reducing the impact on the surrounding environment, avoiding direct impact on the ground or surrounding objects when the pressure is released, reducing potential damage, and further improving the reliability and safety of the system.

[0053] In some embodiments of the present application, a plurality of sprinkler heads 122 are provided, and the plurality of sprinkler heads 122 are distributed along a first direction; a plurality of aerosol fire extinguishing devices 11 are provided, and the plurality of aerosol fire extinguishing devices 11 are distributed along the first direction; a plurality of fire detectors 13 are provided, and the plurality of fire detectors 13 are distributed along the first direction; and in a second direction, the plurality of aerosol fire extinguishing devices 11 are located between the plurality of sprinkler heads 122 and the plurality of fire detectors 13. In these embodiments, the plurality of sprinkler heads 122, the plurality of aerosol fire extinguishing devices 11, and the plurality of fire detectors 13 can improve the reliability and effectiveness of the system, and the plurality of aerosol fire extinguishing devices 11 are located between the plurality of sprinkler heads 122. Between the multiple fire detectors 13, multiple aerosol fire extinguishing devices 11 are relatively centrally arranged, multiple sprinkler heads 122 are distributed on one edge, and multiple fire detectors 13 are distributed on the other edge, so that the water pipes connected to the sprinkler heads 122 and the wiring connected to the fire detectors 13 can be set close to the side of the box. Since the aerosol fire extinguishing device 11 is relatively close to the fire detector 13, it is beneficial for the aerosol fire extinguishing device 11 and the fire detector 13 to share a section of wiring, saving materials and simplifying the installation process, thereby ensuring that the aerosol can effectively cover the area that needs to be protected, and also facilitating the layout of wiring and water pipes, saving space and facilitating maintenance.

[0054] This application also provides a battery energy storage device, a battery energy storage container 100, and a battery pack, wherein the battery pack is installed in the battery energy storage container 100, and the battery energy storage container 100 is as described above. Because this battery energy storage device adopts all the technical solutions of all the above embodiments, it has at least the beneficial effects brought about by the technical solutions of the above embodiments, which will not be detailed here.

[0055] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, based on the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A battery energy storage container, characterized in that: The device comprises a box body and a fire protection system, wherein the box body is used to accommodate a battery pack, and the fire protection system comprises: an aerosol fire extinguishing device, disposed in the box and configured to be located above the battery pack; and A water sprinkler fire extinguishing device includes a fire-fighting pipe and a sprinkler head, one end of the fire-fighting pipe is used to connect to a fire-fighting water source, and the other end of the fire-fighting pipe is connected to the sprinkler head. The sprinkler head is arranged in the box and is used to be located above the battery pack.

2. The battery energy storage container according to claim 1, characterized in that: The box body is provided with an electrical compartment and a battery compartment arranged at intervals. The battery compartment is used to accommodate a battery pack. The aerosol fire extinguishing device and the sprinkler head are both provided in the battery compartment. The fire protection system further includes: a fire detector, disposed in the battery compartment; and A fire-fighting host is arranged in the electrical compartment; The fire host is respectively connected to the fire detector and the aerosol fire extinguishing device via signals.

3. The battery energy storage container according to claim 2, characterized in that: The fire detector is configured to correspond to the pressure relief port of the battery pack; and / or, The fire detector includes at least one of a smoke detector, a temperature detector, and a combustible gas detector.

4. The battery energy storage container according to claim 2, characterized in that: The fire protection system further comprises a fire alarm device, which is arranged on the outside of the box and is signal-connected to the fire host.

5. The battery energy storage container according to claim 2, characterized in that: The fire protection system further comprises a manual starting device, which is arranged on the outside of the box and is connected to the fire protection host signal.

6. The battery energy storage container according to any one of claims 2 to 5, characterized in that: The box body is provided with a first air vent and a second air vent, and the first air vent and the second air vent are both connected to the battery compartment; The battery energy storage container further includes a louver structure and a fan. The louver structure is provided at the first air outlet, and the fan is provided at the second air outlet.

7. The battery energy storage container according to claim 6, characterized in that: In the height direction of the box body, the first air outlet is located below the second air outlet, and the fan is used to discharge the gas in the battery compartment.

8. The battery energy storage container according to any one of claims 2 to 5, characterized in that: The box body is provided with a mounting hole, and the mounting hole is communicated with the battery compartment; The battery energy storage container further includes an explosion venting plate, which is installed in the installation hole.

9. The battery energy storage container according to claim 8, characterized in that: The mounting hole is provided on the top of the box; and / or, There are multiple sprinkler heads, and the multiple sprinkler heads are distributed along the first direction. There are multiple aerosol fire extinguishing devices, and the multiple aerosol fire extinguishing devices are distributed along the first direction. There are multiple fire detectors, and the multiple fire detectors are distributed along the first direction. In the second direction, the multiple aerosol fire extinguishing devices are located between the multiple sprinkler heads and the multiple fire detectors.

10. A battery energy storage device, characterized in that: include: The battery energy storage container according to any one of claims 1 to 9; as well as, The battery pack is installed in the battery energy storage container.

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