A suspended energy storage cabinet

Abstract

The application provides a kind of suspended energy storage cabinet, including fire pool, lifting mechanism, cabinet and multiple battery modules, the top opening of fire pool;Lifting mechanism is located in one side of fire pool, and has lifting end;Cabinet is located above fire pool, and is connected with lifting end, cabinet has first accommodating cavity, cabinet is provided with ventilation opening communicated with first accommodating cavity;Multiple battery modules are respectively arranged in first accommodating cavity.The cabinet of the application is arranged above the fire pool, and is arranged by lifting mechanism and can be lifted.The water is stored in the fire pool, when the battery module in the cabinet is hot out of control and on fire, the cabinet can be driven to descend into the fire pool by the lifting mechanism, and the water in the fire pool is used to cool the battery module.By suspending the cabinet above the fire pool, the fire can be extinguished in time in the early stage of the fire, and the fire can be prevented from spreading to the adjacent energy storage cabinet, and the loss is minimized.

Description

Technical Field

[0001] This invention belongs to the field of battery energy storage cabinet technology, specifically relating to a suspended energy storage cabinet. Background Technology

[0002] An energy storage cabinet, also known as a battery cabinet, is a device used to store and release electrical energy. It typically consists of a series of battery packs, a battery management system, a control unit, and a thermal management system. Its main function is to store excess electrical energy and release it when needed, thereby achieving purposes such as balancing the power grid, stabilizing voltage, and providing backup power. Energy storage cabinets have a wide range of applications, including electric vehicle charging, backup power, and photovoltaic power generation.

[0003] Energy storage cabinets use both lithium-ion and lead-acid batteries. With increasing demand for fast charging and supercharging, more and more energy storage cabinets are adopting lithium-ion batteries with higher energy density. However, fast-charging and supercharging energy storage systems using lithium-ion batteries have very high requirements for heat dissipation. If the operating temperature of the lithium-ion battery becomes too high, thermal runaway can easily occur, leading to a fire. Current energy storage cabinet technologies lack effective measures to suppress lithium-ion battery fires. Ordinary fire extinguishers can only extinguish surface flames; because the high-temperature reaction inside the lithium-ion battery continues, the battery is prone to reignition, making the fire difficult to control. When one energy storage cabinet catches fire, it can easily spread to adjacent cabinets, endangering the entire energy storage station. Summary of the Invention

[0004] This invention provides a suspended energy storage cabinet, which aims to solve the problem that it is difficult to control the fire after the energy storage cabinet catches fire in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a suspended energy storage cabinet, comprising:

[0006] A fire-fighting water tank, with an opening at the top;

[0007] A lifting mechanism is located on one side of the fire water tank and has a lifting end;

[0008] A cabinet, positioned above the fire water tank and connected to the lifting end, includes a first receiving cavity and a ventilation opening communicating with the first receiving cavity; and

[0009] Multiple battery modules are respectively disposed in the first receiving cavity.

[0010] In one possible implementation, a guide rail is provided on one side of the fire water tank, the guide rail is arranged in the vertical direction, and the cabinet is slidably engaged with the guide rail.

[0011] In one possible implementation, the fire-fighting water tank includes a tank body with a water storage cavity and a partition disposed in the tank body. The partition divides the water storage cavity laterally into a first chamber and a second chamber. An overflow port connecting the first chamber and the second chamber is provided on the partition. The overflow port is higher than the liquid level in the first chamber. The lifting mechanism is connected to the tank body, and the cabinet is located above the first chamber.

[0012] In one possible implementation, the fire-fighting water tank further includes:

[0013] A first cover plate is slidably connected to the pool body. The first cover plate has a closed state that covers the first chamber and an open state that allows the first chamber to communicate with the outside.

[0014] A driving mechanism is used to drive the first cover plate to slide horizontally, so that the first cover plate switches between the closed state and the open state; and

[0015] A second cover plate is disposed above the pool body to seal the second chamber.

[0016] In one possible implementation, a condensation chamber is provided inside the first cover plate. The bottom surface of the condensation chamber is an inclined surface arranged in the vertical direction. A reflux port is provided at a low point on the bottom surface of the condensation chamber. An air inlet communicating with the first chamber is also provided on the bottom surface of the condensation chamber. Multiple air inlets are provided. The fire water tank also includes a refrigeration mechanism provided on the upper surface of the first cover plate.

[0017] In one possible implementation, the refrigeration mechanism includes:

[0018] A semiconductor refrigeration chip, wherein the cooling surface of the semiconductor refrigeration chip is attached to the upper surface of the first cover plate; and

[0019] A heat sink is disposed on the heating surface of the semiconductor cooling chip.

[0020] In one possible implementation, the first cover plate is further provided with a photovoltaic power generation panel, which is electrically connected to the semiconductor cooling chip.

[0021] In one possible implementation, the battery module includes:

[0022] The battery box has a second receiving cavity and a cooling cavity arranged circumferentially along the second receiving cavity, wherein the cooling cavity has a water inlet at one end and a water outlet at the other end; and

[0023] At least one battery cell is disposed in the battery box;

[0024] The suspended energy storage cabinet also includes:

[0025] A circulating pump is installed in the fire water tank;

[0026] A water supply pipe is connected between the outlet of the circulating pump and the inlet; and

[0027] The return water pipe connects the outlet and the fire water tank.

[0028] In one possible implementation, the side wall of the battery box is also provided with a fire hydrant that communicates with the second receiving cavity.

[0029] In one possible implementation, the suspended energy storage cabinet further includes a fire detection component, which includes a temperature sensor and a smoke sensor respectively disposed inside the cabinet.

[0030] Compared with the prior art, the beneficial effects of the suspended energy storage cabinet provided by the present invention are:

[0031] The suspended energy storage cabinet provided by this invention includes a fire-fighting water tank, a lifting mechanism, a cabinet body, and multiple battery modules. The cabinet body provides installation space for the multiple battery modules and is positioned above the fire-fighting water tank, and can be raised and lowered via the lifting mechanism. The fire-fighting water tank stores water. When a battery module inside the cabinet experiences thermal runaway and catches fire, the lifting mechanism can lower the cabinet body into the fire-fighting water tank, utilizing the water to cool the battery modules. This allows for rapid and timely extinguishing of the fire, and the submersion of the battery modules in the water effectively cools them, preventing reignition. By suspending the cabinet above the fire-fighting water tank, this invention enables timely extinguishing of fires in their early stages, preventing the fire from spreading to adjacent energy storage cabinets and minimizing losses. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the use of a suspended energy storage cabinet provided in one embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of a suspended energy storage cabinet provided in one embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of a suspended energy storage cabinet provided in one embodiment of the present invention when the first cover plate is in the open state;

[0035] Figure 4 This is a schematic diagram of the structure of a suspended energy storage cabinet provided in one embodiment of the present invention when the first cover plate is in the closed state;

[0036] Figure 5 This is a schematic diagram of the structure of the first cover plate in one embodiment of the present invention;

[0037] Figure 6 This is an internal sectional view of the first cover plate in one embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the battery module in one embodiment of the present invention;

[0039] Figure 8 This is an internal cross-sectional view of the battery module in one embodiment of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Suspended energy storage cabinet;

[0042] 10. Fire water tank; 11. First chamber; 12. Second chamber; 13. Partition; 131. Overflow outlet; 14. First cover plate; 141. Condensation chamber; 142. Return outlet; 143. Air inlet; 15. Drive mechanism; 16. Second cover plate; 17. Refrigeration mechanism; 171. Semiconductor cooling chip; 172. Heat sink; 18. Guide rail;

[0043] 20. Lifting mechanism;

[0044] 30. Cabinet body; 31. Ventilation opening;

[0045] 40. Battery module; 41. Battery box; 411. Cooling chamber; 412. Water inlet; 413. Water outlet; 414. Fire hydrant; 42. Individual battery cell. Detailed Implementation

[0046] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0047] It should be noted that when an element is referred to as "fixed to," "fixed," or "attached" to another element, it can be directly on the other element or may have an intervening element. When an element is referred to as "connected to" or "connected to" another element, it can be directly connected to the other element or may have an intervening element. When an element is referred to as "set on" or "located on" another element, it can be directly on the other element or may have an intervening element. "Multiple" refers to two or more items. "At least one" refers to one or more items. "Several" refers to one or more items.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0049] Please refer to the following: Figures 1 to 8 The following describes a suspended energy storage cabinet 1 provided by an embodiment of the present invention.

[0050] Please see Figures 1 to 4 This invention provides a suspended energy storage cabinet 1, including a fire water tank 10, a lifting mechanism 20, a cabinet body 30, and multiple battery modules 40. The fire water tank 10 has an opening at the top; the lifting mechanism 20 is located on one side of the fire water tank 10 and has a lifting end; the cabinet body 30 is located above the fire water tank 10 and connected to the lifting end, the cabinet body 30 has a first receiving cavity, and the cabinet body 30 has a ventilation opening 31 communicating with the first receiving cavity; the multiple battery modules 40 are respectively located in the first receiving cavity.

[0051] Compared with the prior art, the beneficial effects of the suspended energy storage cabinet 1 provided in the embodiments of the present invention are:

[0052] The suspended energy storage cabinet 1 provided in this embodiment of the invention includes a fire-fighting water tank 10, a lifting mechanism 20, a cabinet body 30, and multiple battery modules 40. The cabinet body 30 provides installation space for the multiple battery modules 40. The cabinet body 30 is positioned above the fire-fighting water tank 10 and is vertically movable via the lifting mechanism 20. The fire-fighting water tank 10 stores water. When a battery module 40 in the cabinet body 30 experiences thermal runaway and catches fire, the lifting mechanism 20 can drive the cabinet body 30 down into the fire-fighting water tank 10. The water in the fire-fighting water tank 10 cools the battery module 40, thus quickly extinguishing the fire. Furthermore, the immersion of the battery module 40 in the water effectively cools it down, preventing reignition. By suspending the cabinet body 30 above the fire-fighting water tank 10, this embodiment of the invention can extinguish a fire in its early stages, preventing the fire from spreading to adjacent energy storage cabinets and minimizing losses.

[0053] In this embodiment of the invention, the fire-fighting water tank 10 can be constructed using bricks, concrete, or containers made of materials such as stainless steel. The fire-fighting water tank 10 stores a certain amount of water, and the depth of the water level should ensure that the cabinet 30 is submerged. To ensure water quality, a filtration device can be installed in the fire-fighting water tank 10, or an agent to inhibit the growth of aquatic plants can be added. For safety, warning signs or fences should be installed around the fire-fighting water tank 10 to prevent personnel from falling into it.

[0054] The lifting mechanism 20 is located on one side of the fire water tank 10. The lifting mechanism 20 is used to drive the cabinet 30 to rise and fall. During normal use of the energy storage cabinet, the cabinet 30 is located above the fire water tank 10. When a battery fire occurs, the lifting end of the lifting mechanism 20 descends, causing the cabinet 30 to be immersed in the fire water tank 10 below, so as to extinguish the fire in time and prevent the battery from reigniting.

[0055] The specific structural form of the lifting mechanism 20 is not limited. Optionally, the lifting mechanism 20 can be a vertically arranged scissor lift, a hydraulic jack, a gear and rack mechanism driven by a motor reducer, etc., as long as it can realize the lifting of the cabinet 30. To ensure smooth operation, multiple lifting mechanisms 20 can be set to provide greater load-bearing capacity.

[0056] The cabinet 30 is located at the lifting end of the lifting mechanism 20. The cabinet 30 can be made of flame-retardant materials such as stainless steel or aluminum alloy. The cabinet 30 has an internal support frame to support and fix the battery module 40. The cabinet 30 can be square, cylindrical, or other shapes, and users can choose the shape according to their own needs.

[0057] Generally, the cabinet 30 is a vertical support structure with internal brackets or supports to divide the first accommodating cavity of the cabinet 30 into multiple layers. Multiple battery modules 40 are respectively installed in their corresponding layers, and the battery modules 40 can be fixed in place using clips, bolts, etc. Ventilation openings 31 are provided on the cabinet 30. These openings serve two purposes: firstly, they dissipate heat during normal operation of the energy storage cabinet, allowing the heat generated by the battery modules 40 to escape to the outside; secondly, when the cabinet 30 is immersed in the fire water tank 10, the ventilation openings 31 facilitate the rapid entry of water into the cabinet 30, cooling the battery modules 40. A heat dissipation device, such as a cooling fan, is also required during normal operation of the energy storage cabinet.

[0058] Battery module 40 can use lithium-ion batteries, and there are no restrictions on its shape, size, or capacity. Multiple battery modules 40 are connected via necessary cables, controllers, etc., to store or release electrical energy. Battery module 40 can be a single lithium battery or an assembly of multiple lithium batteries. Multiple battery modules 40 can be connected via cables for external charging and discharging.

[0059] The lifting mechanism 20 is used to lift the cabinet 30. The operation of the lifting mechanism 20 can be manually controlled or automatically sensed and controlled by setting a control program. For example, multiple detection modules can be set inside the cabinet 30, with each detection module corresponding to a battery module 40. These modules are used to monitor the temperature, bulging, smoke, and fire of the battery module 40. When thermal runaway of the battery module 40 is detected, the detection module transmits a signal to the controller. The controller then sends a command to the lifting mechanism 20, causing the lifting end of the lifting mechanism 20 to retract downwards, thus moving the cabinet 30 downwards into the fire water tank 10.

[0060] Please see Figures 1 to 4 In some possible embodiments, a guide rail 18 is provided on one side of the fire water tank 10. The guide rail 18 is arranged in the vertical direction, and the cabinet 30 slides with the guide rail 18.

[0061] In this embodiment, a guide rail 18 is provided on one side of the fire water tank 10 for positioning and guiding the cabinet 30 during movement, preventing the cabinet 30 from shifting. Correspondingly, a slider can be provided on the side of the cabinet 30 adjacent to the guide rail 18, and the slider slides in cooperation with the guide rail 18. One or more guide rails 18 can be provided, and the sliders on the cabinet 30 correspond one-to-one with the guide rails 18. The guide rail 18 has a vertically arranged track groove, and the cross-sectional shape of the track groove can be square, dovetail, T-shaped, etc.

[0062] Please see Figure 3 and Figure 4 In some possible embodiments, the fire water tank 10 includes a tank body with a water storage cavity and a partition 13 disposed in the tank body. The partition 13 divides the water storage cavity into a first chamber 11 and a second chamber 12 in a transverse direction. An overflow port 131 communicating with the first chamber 11 and the second chamber 12 is provided on the upper part of the partition 13. The overflow port 131 is set above the liquid level of the first chamber 11. A lifting mechanism 20 is disposed in the tank body, and a cabinet 30 is located above the first chamber 11.

[0063] In this embodiment, the fire water tank 10 is equipped with a partition 13, which is vertically arranged to divide the water storage chamber of the fire water tank 10 into a first chamber 11 and a second chamber 12. The upper parts of the first chamber 11 and the second chamber 12 are connected through an overflow port 131. The first chamber 11 contains water, while the second chamber 12 is empty. When the cabinet 30 is lowered, the liquid level in the first chamber 11 will rise, and the water will flow into the second chamber 12 through the overflow port 131, preventing water from flowing out onto the ground. The partition 13 can be made of metal plate or cast concrete.

[0064] It should be noted that the overflow port 131 should be designed to be relatively large to allow a sufficient amount of water to pass through in a short time. Specifically, the amount of water allowed to pass through the overflow port 131 per unit time should be greater than the amount of water discharged when the cabinet 30 is lowered, so as to ensure that all excess water in the first chamber 11 can enter the second chamber 12 through the overflow port 131.

[0065] Please see Figures 1 to 4 In some possible embodiments, the fire-fighting water tank 10 further includes a first cover plate 14, a drive mechanism 15, and a second cover plate 16. The first cover plate 14 is slidably connected to the tank body and has a closed state that covers the top of the first chamber 11 and an open state that allows the top of the first chamber 11 to communicate with the outside. The drive mechanism 15 is disposed on the tank body and is used to drive the first cover plate 14 to slide horizontally, so that the first cover plate 14 switches between the closed state and the open state. The second cover plate 16 is disposed above the tank body and is used to close the second chamber 12.

[0066] In this embodiment, a first cover plate 14 is provided above the first chamber 11, and a second cover plate 16 is provided above the second chamber 12. The first cover plate 14 and the second cover plate 16 can be made of flame-retardant materials such as stainless steel or aluminum alloy. The first cover plate 14 and the second cover plate 16 reduce water evaporation and improve the safety of the fire water tank 10, preventing personnel from falling. The first cover plate 14 is slidably mounted via a drive structure to open the top of the first chamber 11 when needed. A drive mechanism 15 is used to drive the first cover plate 14 to move; the drive mechanism 15 can be a telescopic cylinder, an electric telescopic rod, a hydraulic cylinder, etc.

[0067] Because the fire water tank 10 stores water for extended periods, the water level will drop due to prolonged evaporation. To solve this problem, please refer to [reference needed]. Figure 5 and Figure 6 In some possible embodiments, a condensation chamber 141 is provided inside the first cover plate 14. The bottom surface of the condensation chamber 141 is an inclined surface arranged in the vertical direction. A return port 142 is provided at the low point of the bottom surface of the condensation chamber 141. An air inlet 143 communicating with the first chamber 11 is also provided on the bottom surface of the condensation chamber 141. Multiple air inlets 143 are provided. The fire water tank 10 also includes a refrigeration mechanism 17 provided on the upper surface of the first cover plate 14.

[0068] In this embodiment, a condensation chamber 141 is formed inside the first cover plate 14, and the air inlet 143 and the return outlet 142 are respectively connected to the condensation chamber 141. The refrigeration mechanism 17 is used to cool the first cover plate 14 to keep the temperature inside the condensation chamber 141 at a low level. Water vapor enters the condensation chamber 141 through the air inlet 143, liquefies into water, drips onto the inclined bottom surface of the condensation chamber 141, and flows along the bottom surface to the position of the return outlet 142, from which it returns to the fire water tank 10.

[0069] In this embodiment, by opening a condensation chamber 141 in the first cover plate 14 and setting a refrigeration mechanism 17 on the upper surface of the first cover plate 14, the evaporated water vapor can be liquefied again and returned to the fire water tank 10, ensuring that the water level in the fire water tank 10 is at a suitable position.

[0070] It should be noted that the refrigeration mechanism 17 can be made of refrigeration equipment such as refrigeration units or electric refrigeration plates. In order to improve thermal conductivity, the first cover plate 14 can be made of materials with strong heat transfer capacity such as stainless steel, aluminum alloy, or copper alloy.

[0071] See Figures 1 to 4 In some possible embodiments, the cooling mechanism 17 includes a thermoelectric cooler 171 and a heat sink 172. The cooling surface of the thermoelectric cooler 171 is attached to the upper surface of the first cover plate 14; the heat sink 172 is disposed on the heating surface of the thermoelectric cooler 171.

[0072] In this embodiment, the cooling mechanism 17 employs one or more semiconductor cooling elements 171, which are essentially heat transfer devices. The principle is that when current flows through a thermocouple pair formed by an N-type semiconductor material and a P-type semiconductor material, heat transfer occurs between the two ends, creating a temperature difference and forming hot and cold ends. However, semiconductors themselves have resistance, which generates heat when current passes through them, thus affecting heat transfer. Furthermore, heat between the two plates also flows in the reverse direction through the air and the semiconductor material itself. When the hot and cold ends reach a certain temperature difference, and the amounts of these two heat transfers are equal, an equilibrium point is reached, and the forward and reverse heat transfers cancel each other out. At this point, the temperature of the hot and cold ends will not continue to change. To achieve even lower temperatures, a heat sink 172 is provided on the heating surface to reduce the temperature of the hot end. To further improve heat dissipation efficiency, a fan can also be installed on the heat sink 172.

[0073] The fan and heat sink 172 are mainly used to dissipate heat from the hot end of the thermoelectric cooler. Typically, the temperature difference between the hot and cold ends of the thermoelectric cooler 171 can reach 40 to 65 degrees Celsius. If the temperature of the hot end is reduced by active cooling, the temperature of the cold end will also decrease accordingly, thus achieving a lower temperature.

[0074] In some possible embodiments, a photovoltaic power generation panel is also provided on the first cover plate 14. The photovoltaic power generation panel is electrically connected to the semiconductor refrigeration chip 171, and the power generated by the photovoltaic power generation panel drives the semiconductor refrigeration chip 171 to work, which is more energy-efficient and environmentally friendly.

[0075] Please see Figure 7 and Figure 8 In some possible embodiments, the battery module 40 includes a battery box 41 and battery cells 42. The battery box 41 has a second receiving cavity and a cooling cavity 411 arranged circumferentially along the second receiving cavity. The cooling cavity 411 has a water inlet 412 at one end and a water outlet 413 at the other end. At least one battery cell 42 is disposed in the battery box 41. The suspended energy storage cabinet 1 also includes a circulation pump, a water supply pipe, and a water return pipe. The circulation pump is disposed in the fire water tank 10; the water supply pipe is connected between the water outlet of the circulation pump and the water inlet 412; the water return pipe is connected between the water outlet 413 and the fire water tank 10.

[0076] In this embodiment, the battery module 40 includes a battery box 41 and battery cells 42. One or more battery cells 42 are stored in the second receiving cavity of the battery box 41. The inner wall of the battery box 41 is hollow to form a cooling cavity 411. Water flows in the cooling cavity 411, and the flowing water can continuously remove the heat generated by the battery cells 42, achieving a cooling effect. A circulation pump, a water supply pipe, and a water return pipe form a circulation path. Cold water enters the battery box 41 from the fire water tank 10 to cool the battery. Hot water flows back from the battery box 41 to the fire water tank 10 through the water return pipe. As the water temperature in the fire water tank 10 increases, the evaporation rate accelerates. The water vapor generated by evaporation is then liquefied into water by the first cover plate 14 and the refrigeration mechanism 17 and flows back into the fire water tank 10.

[0077] In this embodiment, the battery module 40 can be cooled down by the combined action of components such as the first cover plate 14, cooling mechanism, circulating pump, water supply pipe and return pipe. At the same time, the generated water vapor is liquefied again into water at a lower temperature by the semiconductor cooling chip 171 and returned to the fire water tank 10.

[0078] Please see Figure 7 and Figure 8 In some possible embodiments, the side wall of the battery box 41 is also provided with a fire hydrant 414 that communicates with the second receiving cavity.

[0079] In this embodiment, a fire water inlet 414 is provided on the side wall of the battery box 41. The fire water inlet 414 is not connected to the cooling chamber 411. One or more fire water inlets 414 can be provided. The purpose of the fire water inlet 414 is to allow water to enter the battery box 41 through the fire water inlet 414 when the cabinet 30 is immersed in the fire water tank 10, so as to directly cool down the battery cells 42, thus achieving a better cooling effect.

[0080] In some possible embodiments, the suspended energy storage cabinet 1 also includes a fire detection component, which includes a temperature sensor and a smoke sensor respectively installed in the cabinet 30. Multiple temperature sensors and smoke sensors can be installed in different locations in the cabinet 30. The two work together to detect thermal runaway fire in the battery module 40 in a timely manner.

[0081] like Figure 1 As shown in the figure, this embodiment of the invention also provides an energy storage power station, including multiple adjacent suspended energy storage cabinets, which can store a large amount of electrical energy for production and daily life, and can also extinguish fires in a timely manner to eliminate hidden dangers, thus having high fire safety.

[0082] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present invention specification has recorded each combined embodiment and can support different combined embodiments.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A suspended energy storage cabinet, characterized in that, include: A fire-fighting water tank, with an opening at the top; A lifting mechanism is located on one side of the fire water tank and has a lifting end; The cabinet is located above the fire water tank and connected to the lifting end. The cabinet has a first receiving cavity and a ventilation opening that communicates with the first receiving cavity. as well as Multiple battery modules are respectively disposed within the first accommodating cavity; The fire water tank includes a tank body with a water storage cavity and a partition disposed in the tank body. The partition divides the water storage cavity into a first chamber and a second chamber in a horizontal direction. An overflow port connecting the first chamber and the second chamber is provided at the upper part of the partition. The lifting mechanism is connected to the tank body, and the cabinet is located above the first chamber. The fire water tank also includes: A first cover plate is slidably connected to the pool body. The first cover plate has a closed state that covers the first chamber and an open state that allows the first chamber to communicate with the outside. A driving mechanism is used to drive the first cover plate to slide horizontally, so that the first cover plate switches between the closed state and the open state; and A second cover plate is disposed above the pool body to seal the second chamber; The first cover plate has a condensation chamber inside. The bottom surface of the condensation chamber is an inclined surface arranged in the vertical direction. The bottom surface of the condensation chamber has a reflux port at a low point. The bottom surface of the condensation chamber also has an air inlet communicating with the first chamber. There are multiple air inlets. The fire water tank also includes a refrigeration mechanism disposed on the upper surface of the first cover plate.

2. The suspended energy storage cabinet according to claim 1, characterized in that, The fire water tank is provided with a guide rail on one side, which is arranged in the vertical direction, and the cabinet is slidably engaged with the guide rail.

3. A suspended energy storage cabinet according to claim 1, characterized in that, The refrigeration mechanism includes: A semiconductor refrigeration chip, wherein the cooling surface of the semiconductor refrigeration chip is attached to the upper surface of the first cover plate; and A heat sink is disposed on the heating surface of the semiconductor cooling chip.

4. A suspended energy storage cabinet according to claim 3, characterized in that, The first cover plate is also provided with a photovoltaic power generation panel, which is electrically connected to the semiconductor cooling chip.

5. A suspended energy storage cabinet according to claim 1, characterized in that, The battery module includes: The battery box has a second receiving cavity and a cooling cavity arranged circumferentially along the second receiving cavity, wherein the cooling cavity has a water inlet at one end and a water outlet at the other end; and At least one battery cell is disposed in the battery box; The suspended energy storage cabinet also includes: A circulating pump is installed in the fire water tank; A water supply pipe is connected between the outlet of the circulating pump and the inlet; and The return water pipe connects the outlet and the fire water tank.

6. A suspended energy storage cabinet according to claim 5, characterized in that, The side wall of the battery box is also provided with a fire hydrant that communicates with the second accommodating cavity.

7. A suspended energy storage cabinet according to claim 1, characterized in that, The suspended energy storage cabinet also includes a fire detection component, which includes a temperature sensor and a smoke sensor respectively installed inside the cabinet.

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