A large capacity energy storage battery compartment system

Abstract

The utility model discloses a kind of large-capacity energy storage battery cabin systems, involve battery cabin technical field.The utility model discloses large-capacity energy storage battery cabin system including cabin, confluence control cabinet and battery system, the cabin includes first chamber and second chamber sequentially arranged along first direction, the confluence control cabinet is located in first chamber, the battery system is located in second chamber and includes multiple energy storage units spaced apart along first direction, the energy storage unit includes multiple battery packs spaced apart along second direction perpendicular to first direction and high-voltage box located below battery pack, part battery pack in the energy storage unit is connected in series on the first loop of high-voltage box, part battery pack in the energy storage unit is connected in series on the second loop of high-voltage box, the high-voltage box is electrically connected with confluence control cabinet.The utility model discloses large-capacity energy storage battery cabin system high integration, response speed is fast, it is convenient to repair, and can guarantee the use efficiency and use safety of battery cabin.

Description

Technical Field

[0001] This utility model relates to the field of battery compartment technology, specifically to a large-capacity energy storage battery compartment system. Background Technology

[0002] With the rapid development of new energy technologies, energy storage systems are being used more and more widely in power systems, electric vehicles, and other fields. Among related technologies, energy storage battery compartment systems typically suffer from the following problems during use: traditional battery compartments have low integration levels, resulting in large footprints and low land utilization after system integration; thermal management systems are inefficient and highly susceptible to ambient temperature fluctuations, making it difficult to maintain the optimal operating temperature of the batteries in high or low temperature environments, thus limiting system efficiency; and fire suppression systems are often poorly designed and unable to effectively respond to emergencies such as battery thermal runaway, resulting in low safety and reliability. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, this utility model embodiment proposes a large-capacity energy storage battery compartment system. This large-capacity energy storage battery compartment system has high integration, fast response speed, and is easy to maintain, while ensuring the battery compartment's efficiency and safety.

[0005] The large-capacity energy storage battery compartment system of this utility model embodiment includes:

[0006] The cabin includes a first chamber and a second chamber arranged sequentially along a first direction;

[0007] A busbar control cabinet, wherein the busbar control cabinet is located in the first chamber;

[0008] A battery system is provided in the second chamber and includes a plurality of energy storage units spaced apart along the first direction. Each energy storage unit includes a plurality of battery packs spaced apart along a second direction perpendicular to the first direction and a high-voltage box located below the battery packs. Some of the battery packs in the energy storage unit are connected in series in the first circuit of the high-voltage box, and some of the battery packs in the energy storage unit are connected in series in the second circuit of the high-voltage box. The high-voltage box is electrically connected to the combiner control cabinet.

[0009] The large-capacity energy storage battery compartment system of this utility model has a high degree of integration, fast response speed, and is easy to maintain, while ensuring the efficiency and safety of the battery compartment.

[0010] In some embodiments, the cabin body is provided with a plurality of doors along the first direction corresponding to the second chamber, the doors being one-to-one with the energy storage units, and the doors being symmetrically arranged on both sides of the energy storage units along a third direction perpendicular to the first direction.

[0011] In some embodiments, the cabins are provided in four arrays, with the first chambers of two adjacent cabins arranged opposite to each other along the first direction, and the two adjacent cabins arranged side by side along the third direction.

[0012] In some embodiments, the cabin body is provided with a plurality of louvers corresponding to the first chamber, and the louvers are symmetrically arranged on both sides of the junction control cabinet along the third direction.

[0013] In some embodiments, a fire protection system is included, which includes a combustible gas detector, a ventilation window, and an exhaust fan electrically connected to the manifold control cabinet. The combustible gas detector is located at the top of the second chamber and is used to collect combustible gas concentration data and transmit it to the manifold control cabinet. The manifold control cabinet is used to open the ventilation window and the exhaust fan when the combustible gas concentration reaches a first set value.

[0014] In some embodiments, the fire protection system includes a temperature sensor, a smoke sensor, an audible and visual alarm device, and an aerosol fire extinguishing device electrically connected to the combiner control cabinet. The temperature sensor is used to detect temperature data in the second chamber and transmit it to the combiner control cabinet. The smoke sensor is used to detect smoke concentration data in the second chamber and transmit it to the combiner control cabinet. The combiner control cabinet is used to control the audible and visual alarm device and the aerosol fire extinguishing device to operate when the smoke concentration reaches a second set value and the measured temperature reaches a third set value.

[0015] In some embodiments, the cabin is provided with an emergency fire-fighting interface communicating with the second chamber, the second chamber is provided with a fire-fighting pipe network connected to the emergency fire-fighting interface, a plurality of fire sprinklers are spaced apart on the fire-fighting pipe network, and the fire-fighting pipe network is located below the combustible gas detector, the temperature detector, and the smoke detector.

[0016] In some embodiments, a cooling system is included, the cooling system including a liquid chiller, a cooling pipe network and a liquid cooling plate, the liquid chiller being disposed in the first chamber and used for cooling, the liquid cooling plate being disposed in the battery pack, and the cooling pipe network connecting the liquid chiller and the liquid cooling plate for circulating coolant.

[0017] In some embodiments, the liquid cooling plate has an annular cross-section and is wrapped around the battery pack. The liquid cooling plate is provided with an inlet and an outlet. The inlet is located on the side of the liquid cooling plate near the high-voltage box, and the outlet is located on the side of the liquid cooling plate away from the high-voltage box.

[0018] In some embodiments, the cooling network includes primary pipelines, secondary pipelines, and tertiary pipelines. The tertiary pipelines are configured corresponding to the liquid cooling plate for supplying coolant to the liquid cooling plate. The secondary pipelines are configured corresponding to the energy storage unit to connect to a plurality of the tertiary pipelines within the energy storage unit. The portion of the primary pipeline located within the second cavity extends along the first direction to connect to a plurality of the secondary pipelines. Attached Figure Description

[0019] Figure 1 This is a first-view structural schematic diagram of the large-capacity energy storage battery compartment system according to an embodiment of the present invention.

[0020] Figure 2 This is a second-view structural schematic diagram of the large-capacity energy storage battery compartment system according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the cabin array arrangement in the large-capacity energy storage battery cabin system according to an embodiment of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the energy storage unit in the large-capacity energy storage battery compartment system of this utility model embodiment.

[0023] Figure 5 This is a structural schematic diagram of the fire protection system in the large-capacity energy storage battery compartment system of this utility model embodiment.

[0024] Figure 6 This is a schematic diagram of the structure of the primary pipeline in the large-capacity energy storage battery compartment system of this utility model embodiment.

[0025] Figure label:

[0026] 1. Hull; 11. First chamber; 12. Second chamber; 13. Door; 14. Louver;

[0027] Busbar control cabinet 2;

[0028] Battery system 3; Energy storage unit 31; Battery pack 311; High voltage box 312;

[0029] Fire protection system 4; combustible gas detector 41; ventilation window 42; exhaust fan 43; temperature detector 45; smoke detector 46; audible and visual alarm device 47; aerosol extinguishing device 48; emergency fire interface 49; fire protection pipeline network 491; fire sprinkler head 492;

[0030] Cooling system 5; liquid cooling unit 51; liquid cooling plate 52; primary piping 53; tertiary piping 54. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the large-capacity energy storage battery compartment system of this utility model embodiment includes a compartment 1, a combiner control cabinet 2, and a battery system 3. The length direction of the compartment 1 is defined as the first direction, the height direction of the compartment 1 as the second direction, and the width direction of the compartment 1 as the third direction. The compartment 1 includes a first chamber 11 and a second chamber 12 arranged sequentially along the first direction. A partition plate is provided between the first chamber 11 and the second chamber 12. The combiner control cabinet 2 is located in the first chamber 11. The battery system 3 is located in the second chamber 12 and includes a plurality of energy storage units 31 arranged at intervals along the first direction. Each energy storage unit 31 includes a plurality of battery packs 311 arranged at intervals along the second direction perpendicular to the first direction and a high-voltage box 312 located below the battery packs 311. The plurality of battery packs 311 and the high-voltage box 312 are sequentially installed in the housing layer. Some of the battery packs 311 in the energy storage unit 31 are connected in series in the first circuit of the high-voltage box, and some of the battery packs 311 in the energy storage unit 31 are connected in series in the second circuit of the high-voltage box. The high-voltage box 312 is electrically connected to the combiner control cabinet 2.

[0033] Specifically, the energy storage unit 31 includes a housing frame with nine housing layers spaced apart along the second direction. There are eight battery packs 311, and the eight battery packs 311 and the high-voltage box 312 are arranged sequentially on the nine housing layers. The four battery packs 311 located at the top are connected to the first circuit of the high-voltage box, i.e., the high-voltage circuit on the left side of the high-voltage box 312, through three sets of series power harnesses. The four battery packs 311 located at the bottom are connected to the second circuit of the high-voltage box, i.e., the high-voltage circuit on the right side of the high-voltage box 312, through three sets of series power harnesses. The energy storage unit 31 is connected to the busbar inside the combiner control cabinet 2 through a power cable, forming the entire 1500V DC high-voltage system.

[0034] The large-capacity energy storage battery compartment system of this utility model embodiment, by dividing the first chamber 11 and the second chamber 12, centrally sets up the energy storage unit 31 and separately sets up the combiner control cabinet 2, reduces redundant space and wiring, has high integration, fast response speed, and is easy to maintain. At the same time, it can ensure the efficiency and safety of the battery compartment and facilitate the side-by-side placement of multiple compartments 1.

[0035] In some embodiments, such as Figure 1 As shown, the cabin 1 is provided with multiple doors 13 along the first direction corresponding to the second chamber 12. Each door 13 corresponds to an energy storage unit 31. The doors 13 are symmetrically arranged on both sides of the energy storage unit 31 along a third direction perpendicular to the first direction. By providing doors 13 that correspond one-to-one with the energy storage unit 31, it is convenient to install and disassemble a single energy storage unit 31, and at the same time, it is convenient to inspect and troubleshoot multiple energy storage units 31, making maintenance convenient.

[0036] In some embodiments, such as Figure 3 As shown, there are four compartments 1 arranged in an array. Along the first direction, the first chambers 11 of two adjacent compartments 1 are arranged away from each other. Along the third direction, two adjacent compartments 1 are arranged side by side. By grouping the four compartments 1 together, the layout area of ​​the battery compartment system per unit area is increased while ensuring maintenance of each compartment 1. This increases the energy storage capacity of the battery compartment system while improving land utilization.

[0037] In some embodiments, such as Figure 1 As shown, the cabin 1 is provided with a plurality of louvers 14 corresponding to the first chamber 11, and the louvers 14 are symmetrically arranged on both sides of the combiner control cabinet 2 along the third direction. By setting the louvers 14, the air exchange efficiency of the first chamber 11 is increased, so as to reduce the ambient temperature in the first chamber 11 and improve the operating efficiency of the energy storage system.

[0038] In some embodiments, such as Figure 5 As shown, the system includes a fire protection system 4, which includes a combustible gas detector 41, a ventilation window 42, and an exhaust fan 43 electrically connected to the manifold control cabinet 2. The combustible gas detector 41 is located at the top of the second chamber 12 and is used to collect combustible gas concentration data and transmit it to the manifold control cabinet 2. The manifold control cabinet 2 is used to open the ventilation window 42 and the exhaust fan 43 when the combustible gas concentration reaches a first set value. The combustible gas detector 41 analyzes the gas composition in the second chamber 12, and the ventilation window 42 and the exhaust fan 43 discharge the combustible gas in the second chamber 12, reducing the concentration of combustible gas in the second chamber 12, thereby preventing the combustion and explosion of combustible gas and improving the safety and reliability of the battery compartment during use.

[0039] In some embodiments, such as Figure 5As shown, the fire protection system 4 includes a temperature detector 45, a smoke detector 46, an audible and visual alarm device 47, and an aerosol fire extinguishing device 48, all electrically connected to the manifold control cabinet 2. The temperature detector 45 detects temperature data in the second chamber 12 and transmits it to the manifold control cabinet 2. The smoke detector 46 detects smoke concentration data in the second chamber 12 and transmits it to the manifold control cabinet 2. The manifold control cabinet 2 controls the audible and visual alarm device 47 and the aerosol fire extinguishing device 48 to operate when the smoke concentration reaches a second set value and the measured temperature reaches a third set value. When a fire occurs in the second chamber 12, the temperature detector and the smoke sensor transmit the measured data to the manifold control cabinet 2. The manifold control cabinet 2 controls the audible and visual alarm device 47 to issue an alarm signal to alert monitoring personnel and controls the aerosol fire extinguishing device 48 to spray aerosol to extinguish the fire source at a specific point, thereby achieving first-level fire extinguishing, preventing the fire from spreading, and ensuring safety and reliability.

[0040] In some embodiments, such as Figure 2 and Figure 5 As shown, the cabin 1 is equipped with an emergency fire-fighting interface 49 that communicates with the second chamber 12. The second chamber 12 is equipped with a fire-fighting pipe network 491 that is connected to the emergency fire-fighting interface 49. Multiple fire sprinklers 492 are spaced apart on the fire-fighting pipe network 491. The fire-fighting pipe network 491 is located below the combustible gas detector 41, the heat detector 45, and the smoke detector 46. By setting up the emergency fire-fighting interface 49, when the aerosol fire extinguishing device 48 is unable to extinguish the fire, the emergency fire-fighting interface 49 serves as a backup fire extinguishing method. Secondary fire extinguishing is carried out through the fire-fighting pipe network 491 and the fire sprinklers 492 to ensure effective control and extinguishing of the fire.

[0041] Specifically, two temperature detectors, two combustible gas detectors, and two smoke detectors are evenly arranged on the top of compartment 1, connected to the fire control panel integrated in the manifold control cabinet 2 via fire electrical conduits. The detectors provide feedback signals to determine the fire level and activate the corresponding fire extinguishing equipment. When the combustible gas detectors detect hydrogen and carbon monoxide concentrations reaching the trigger threshold, ventilation windows 42 and exhaust fans 43 are opened to reduce the concentration of combustible gases inside the compartment, suppressing combustion and explosion. When the smoke and temperature detectors are triggered, it indicates that the fire has spread. At this time, the audible and visual alarm device 47 issues an alarm signal, and the aerosol fire extinguishing device 48 installed in compartment 1 is triggered, enabling effective fire suppression. If the fire cannot be effectively controlled and continues to spread, the emergency fire interface 49 needs to be connected to external fire water. The fire water will spray into the second chamber 12 through the fire pipe network 491 and fire sprinklers 492. A manual fire control device is installed on the side door of compartment 1 to control the emergency start and stop of the fire protection system 4.

[0042] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, the system includes a cooling system 5, which includes a liquid cooler unit 51, a cooling pipe network, and a liquid cooling plate 52. The liquid cooler unit 51 is located in the first chamber 11 and is used to cool the coolant. The liquid cooling plate 52 is located on the battery pack 311. The cooling pipe network connects the liquid cooler unit 51 and the liquid cooling plate 52 to circulate and transport the coolant. By setting the liquid cooling plate 52 one-to-one with the battery pack 311, the cooling effect of the battery pack 311 is ensured, thereby keeping the battery pack 311 at the optimal operating temperature, so as to improve the energy transfer efficiency of the battery compartment.

[0043] In some embodiments, the liquid cooling plate 52 has an annular cross-section and is wrapped around the battery pack 311. The liquid cooling plate 52 is provided with an inlet and an outlet. The inlet is located on the side of the liquid cooling plate 52 near the high-voltage box 312, and the outlet is located on the side of the liquid cooling plate 52 away from the high-voltage box 312.

[0044] By wrapping the liquid cooling plate 52 around the battery pack 311, the liquid cooling plate 52 not only exchanges heat and cools the battery pack 311, but also forms a heat insulation layer around the battery pack 311 to reduce the impact of the external ambient temperature on the battery pack 311 and improve the cooling efficiency of the battery pack 311.

[0045] In some embodiments, such as Figure 4 and Figure 6 As shown, the cooling network includes a primary pipeline 53, a secondary pipeline (not shown in the figure), and a tertiary pipeline 54. The tertiary pipeline 54 is set corresponding to the liquid cooling plate 52 and includes a tertiary inlet pipe and a tertiary return pipe. The tertiary inlet pipe is connected to the liquid inlet, and the tertiary return pipe is connected to the liquid outlet. Coolant is delivered to each liquid cooling plate 52 individually through the tertiary pipeline 54. The secondary pipeline is set corresponding to the energy storage unit 31 and includes a secondary inlet pipe and a secondary return pipe. Multiple tertiary inlet pipes are connected in parallel on the secondary inlet pipe, and multiple tertiary return pipes are connected in parallel on the secondary return pipe. The secondary pipeline is used to connect multiple tertiary pipelines 54 in the corresponding energy storage unit 31. The portion of the primary pipeline 53 located in the second cavity extends along the first direction to connect the secondary inlet pipe and the secondary return pipe of multiple secondary pipelines.

[0046] The liquid cooling unit 51 is installed in the first compartment. It continuously supplies cooling medium to the liquid cooling plate 52 on the battery pack 311 through primary pipeline 53, secondary pipeline and tertiary pipeline 54. Each 1500V energy storage unit 31 is connected in parallel to the primary pipeline 53 through independent secondary pipeline and tertiary pipeline 54 to supply the medium to the liquid cooling plate 52 on the battery pack 311, maintain the cell temperature within the set range, ensure the optimal operating temperature of the system and improve energy efficiency.

[0047] The large-capacity energy storage battery compartment system of this utility model embodiment has the following beneficial effects: it highly integrates the battery system, fire protection system, and cooling system, improving space utilization and maintenance efficiency; by dividing the first and second chambers, maintenance equipment can be arranged on the front and sides of the container, reducing maintenance space and enabling various forms of compartment design and the joint operation of four compartments; the fire prevention, first-level fire extinguishing, and second-level fire extinguishing systems enable rapid response to emergencies such as battery thermal runaway, ensuring the safety of the battery compartment; and the multi-level circuit enables individual delivery of coolant to each battery pack, ensuring that the cells maintain optimal working condition under different ambient temperatures.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-capacity energy storage battery compartment system, characterized in that, include: The cabin includes a first chamber and a second chamber arranged sequentially along a first direction; A busbar control cabinet, wherein the busbar control cabinet is located in the first chamber; A battery system, wherein the battery system is disposed in the second chamber and includes a plurality of energy storage units spaced apart along the first direction, the energy storage unit including a plurality of battery packs spaced apart along a second direction perpendicular to the first direction and a high-voltage box disposed below the battery packs, some of the battery packs in the energy storage unit are connected in series in the first circuit of the high-voltage box, some of the battery packs in the energy storage unit are connected in series in the second circuit of the high-voltage box, and the high-voltage box is electrically connected to the combiner control cabinet; The energy storage unit includes a housing frame with nine housing layers spaced apart along a second direction. There are eight battery packs, and the eight battery packs and the high-voltage box are sequentially arranged on the nine housing layers. The four battery packs located at the top are connected to the first circuit of the high-voltage box through three sets of series power harnesses, and the four battery packs located at the bottom are connected to the second circuit of the high-voltage box through three sets of series power harnesses. The energy storage unit is connected to the busbar inside the busbar control cabinet through a power cable.

2. The large-capacity energy storage battery compartment system according to claim 1, characterized in that, The cabin body is provided with multiple doors along the first direction corresponding to the second chamber. Each door corresponds to one of the energy storage units, and the doors are symmetrically arranged on both sides of the energy storage unit along a third direction perpendicular to the first direction.

3. The large-capacity energy storage battery compartment system according to claim 2, characterized in that, The cabin is provided in four arrays. Along the first direction, the first chambers of two adjacent cabins are arranged opposite to each other. Along the third direction, two adjacent cabins are arranged side by side.

4. The large-capacity energy storage battery compartment system according to claim 2, characterized in that, The cabin body is provided with a plurality of louvers corresponding to the first chamber, and the louvers are symmetrically arranged on both sides of the junction control cabinet along the third direction.

5. The large-capacity energy storage battery compartment system according to claim 1, characterized in that, The system includes a fire protection system, which includes a combustible gas detector, a ventilation window, and an exhaust fan that are electrically connected to the manifold control cabinet. The combustible gas detector is located at the top of the second chamber and is used to collect combustible gas concentration data and transmit it to the manifold control cabinet. The manifold control cabinet is used to open the ventilation window and the exhaust fan when the combustible gas concentration reaches a first set value.

6. The large-capacity energy storage battery compartment system according to claim 5, characterized in that, The fire protection system includes a temperature sensor, a smoke sensor, an audible and visual alarm device, and an aerosol fire extinguishing device, all electrically connected to the combiner control cabinet. The temperature sensor detects temperature data in the second chamber and transmits it to the combiner control cabinet. The smoke sensor detects smoke concentration data in the second chamber and transmits it to the combiner control cabinet. The combiner control cabinet controls the audible and visual alarm device and the aerosol fire extinguishing device to operate when the smoke concentration reaches a second set value and the measured temperature reaches a third set value.

7. The large-capacity energy storage battery compartment system according to claim 6, characterized in that, The cabin is equipped with an emergency fire-fighting interface that communicates with the second chamber. The second chamber is equipped with a fire-fighting pipe network that is connected to the emergency fire-fighting interface. Multiple fire sprinklers are spaced apart on the fire-fighting pipe network, which is located below the combustible gas detector, the temperature detector, and the smoke detector.

8. The large-capacity energy storage battery compartment system according to claim 1, characterized in that, The system includes a cooling system comprising a liquid chiller, a cooling pipe network, and a liquid cooling plate. The liquid chiller is located in the first chamber and is used for cooling. The liquid cooling plate is located in the battery pack. The cooling pipe network connects the liquid chiller and the liquid cooling plate for circulating coolant.

9. The large-capacity energy storage battery compartment system according to claim 8, characterized in that, The liquid cooling plate has a ring-shaped cross-section and is wrapped around the battery pack. The liquid cooling plate is provided with an inlet and an outlet. The inlet is located on the side of the liquid cooling plate closer to the high-voltage box, and the outlet is located on the side of the liquid cooling plate away from the high-voltage box.

10. The large-capacity energy storage battery compartment system according to claim 9, characterized in that, The cooling network includes primary pipelines, secondary pipelines and tertiary pipelines. The tertiary pipelines are arranged corresponding to the liquid cooling plate to deliver coolant to the liquid cooling plate. The secondary pipelines are arranged corresponding to the energy storage unit to connect to multiple tertiary pipelines within the energy storage unit. The portion of the primary pipeline located in the second cavity extends along the first direction to connect to multiple secondary pipelines.

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