Electrical cabinet and energy storage system

Abstract

This application discloses an electrical cabinet and an energy storage system, relating to the field of power equipment technology. The electrical cabinet includes a cabinet, electrical modules, and a first fire-fighting device. The cabinet has a first chamber and a second chamber, separated by a first partition, which is a fire-resistant partition. The electrical modules are housed in the first chamber, and the first fire-fighting device is housed in the second chamber. The first fire-fighting device has at least one outlet for releasing fire extinguishing material to the outside of the cabinet. According to this application, by using the first partition to separate the first and second chambers, the safety performance of the electrical cabinet is improved, ensuring that a fire in the electrical modules will not affect the first fire-fighting device, allowing the first fire-fighting device to function normally, thus reducing losses caused by fires in the electrical modules.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, and more specifically, to an electrical cabinet and an energy storage system. Background Technology

[0002] In related technologies, energy storage systems include electrical cabinets, battery cabinets, and fire-fighting devices. When a fire occurs in the battery cabinet, the fire-fighting device is used to extinguish the fire in the electrical cabinet. In some energy storage systems, the fire-fighting device is integrated into the electrical cabinet. However, when the electrical modules of the electrical cabinet catch fire, it often leads to damage or failure of the fire-fighting device, affecting its normal use. Utility Model Content

[0003] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, this application proposes an electrical cabinet that reduces the impact of an electrical module fire on fire-fighting equipment.

[0004] This application also proposes an energy storage system having the aforementioned electrical cabinet.

[0005] According to an embodiment of this application, the electrical cabinet includes a cabinet, an electrical module, and a first fire-fighting device. The cabinet has a first chamber and a second chamber, which are separated by a first partition. The electrical module is disposed in the first chamber, and the first fire-fighting device is disposed in the second chamber.

[0006] According to the embodiments of this application, the electrical cabinet separates the first chamber and the second chamber by using a first partition, which improves the safety performance of the electrical cabinet. This ensures that the first fire-fighting device will not be affected when the electrical module catches fire, and the first fire-fighting device can be used normally, which helps to reduce the losses caused by the electrical module fire.

[0007] According to some embodiments of this application, the first partition is a fireproof partition.

[0008] According to some embodiments of this application, the first chamber includes a first sub-chamber and a second sub-chamber, the first sub-chamber and the second sub-chamber are separated by a second partition; the electrical module includes a high-voltage module and a low-voltage module, the high-voltage module is disposed in the first sub-chamber, and the low-voltage module is disposed in the second sub-chamber.

[0009] According to some embodiments of this application, the second partition is a fireproof partition.

[0010] According to some embodiments of this application, at least one of the first sub-chamber and the second sub-chamber is adapted to be simultaneously connected to a chamber air inlet and a chamber air outlet, the chamber air inlet and the chamber air outlet being disposed on the cabinet.

[0011] According to some embodiments of this application, the electrical cabinet further includes a ventilation device, which is provided in at least one of the first compartment and the second compartment. The ventilation device includes a fan, and a temperature detection device is provided in the first compartment. The temperature detection device is used to detect the temperature in the first compartment. When the temperature value detected by the temperature detection device reaches a first preset threshold, the electrical module controls the fan to rotate.

[0012] According to some embodiments of this application, the ventilation device includes: a hood, a filter screen, and a filter element. The hood has a communicating air inlet and an air outlet. The fan is installed inside the hood, and the hood is installed on the cabinet. The filter screen is installed on the hood and / or the cabinet, and is located at the air inlet of the hood. The filter screen has filter holes. The filter element is located between the filter screen and the corresponding air inlet of the chamber, and is attached to the cabinet and covers the corresponding air inlet of the chamber.

[0013] According to some embodiments of this application, the air outlet of the hood is located above the air inlet of the hood, and the air outlet of the hood is located on the side of the air inlet of the hood away from the air inlet of the chamber. The hood includes a top plate, a bottom plate, and side plates. The bottom plate is located below the top plate. The top plate and the bottom plate are connected by at least two of the side plates. The angle between the bottom plate and the horizontal plane is greater than 0° and less than 90°. The upper end of the bottom plate faces the air outlet of the hood, and the lower end of the bottom plate faces the air inlet of the hood.

[0014] According to some embodiments of this application, the high-voltage module includes a mounting plate and a surge arrester, the mounting plate being mounted on the cabinet and the surge arrester being mounted on the mounting plate.

[0015] According to some embodiments of this application, the cabinet includes a cabinet body and a first cabinet door, the first cabinet door is installed on the cabinet body, the first cabinet door is disposed opposite to the first chamber, the first chamber is exposed when the first cabinet door is open, and the first chamber is covered by the first cabinet door when the first cabinet door is closed.

[0016] According to some embodiments of this application, the cabinet includes a cabinet body and a second cabinet door. The second cabinet door is installed on the cabinet body and is disposed opposite to the second chamber. When the second cabinet door is open, the second chamber is exposed, and when the second cabinet door is closed, the second chamber is covered by the second cabinet door.

[0017] According to some embodiments of this application, the second cabinet door is provided with a maintenance opening, the maintenance opening connects the second chamber to the outside of the cabinet, and a maintenance door is provided at the maintenance opening. When the maintenance door is open, the maintenance opening is exposed, and when the maintenance door is closed, the maintenance opening is blocked by the maintenance door.

[0018] According to some embodiments of this application, the first fire-fighting device includes a control device and a first storage device, wherein the first storage device is connected to the control device and stores fire extinguishing substances.

[0019] According to some embodiments of this application, the first fire-fighting device has at least a first outlet for releasing fire-extinguishing material to the outside of the cabinet, and the first storage device is connected to the first outlet.

[0020] According to some embodiments of this application, the first fire-fighting device further includes: a first pipe, one end of which is connected to the first storage device, and the other end of which forms the first outlet of the first fire-fighting device.

[0021] According to some embodiments of this application, the electrical cabinet further includes a second fire-fighting device, which is disposed in the first chamber. The second fire-fighting device includes a second storage device and a second smoke detection device. The second storage device is connected to the control device and stores fire extinguishing material. The second smoke detection device is connected to the control device and is used to detect smoke concentration. When the smoke concentration detected by the second smoke detection device reaches a second preset threshold, the second storage device releases fire extinguishing material into the first chamber.

[0022] According to some embodiments of this application, the first fire-fighting device includes: a third storage device connected to the control device, the third storage device storing fire extinguishing material, the third storage device having a second outlet for releasing the fire extinguishing material into the first chamber, and the third storage device releasing the fire extinguishing material into the first chamber when the smoke concentration in the first chamber reaches a second preset threshold.

[0023] According to some embodiments of this application, the electrical cabinet further includes an alarm device, which is installed in the cabinet and electrically connected to the control device. The alarm device includes one or more combinations of a sound alarm, a light alarm, a sound and light alarm, and a fire extinguishing indicator light.

[0024] According to some embodiments of this application, the electrical cabinet further includes an emergency start / stop button, which is installed in the cabinet and electrically connected to the control device. The emergency start / stop button is used to control the first storage device to start releasing fire extinguishing material or stop releasing fire extinguishing material.

[0025] According to some embodiments of this application, the electrical cabinet further includes a manual alarm button, which is installed in the cabinet and electrically connected to the control device. The manual alarm button can be manually activated to send an alarm signal.

[0026] An energy storage system according to another embodiment of this application includes an electrical cabinet, a connecting pipe, and at least one battery cabinet. The electrical cabinet is the aforementioned electrical cabinet. The first fire-fighting device has at least a first outlet for releasing fire-extinguishing material to the outside of the cabinet. The battery cabinet includes a cabinet body and a battery disposed within the cabinet body. The battery is electrically connected to the electrical module. The cabinet body is provided with an inlet. The connecting pipe connects the inlet of the cabinet body and the first outlet of the first fire-fighting device.

[0027] According to the energy storage system of this application embodiment, the electrical cabinet separates the first chamber and the second chamber by using a first partition, which improves the safety performance of the electrical cabinet. This ensures that a fire in the electrical module will not affect the first fire-fighting device, and the first fire-fighting device can be used normally to extinguish a fire in the battery cabinet, thus reducing the losses caused by a fire in the electrical module. Furthermore, integrating the first fire-fighting device into the electrical cabinet, allowing it to be installed separately from the battery cabinet, helps reduce the impact of a fire in the battery cabinet on the first fire-fighting device.

[0028] According to some embodiments of this application, the energy storage system further includes a first smoke detection device, at least one of the battery cabinets is equipped with the first smoke detection device, the first smoke detection device is connected to the control device of the first fire-fighting device, the first smoke detection device is used to detect smoke concentration, and when the smoke concentration detected by the first smoke detection device reaches a third preset threshold, the first fire-fighting device releases fire extinguishing material to the battery cabinet.

[0029] According to some embodiments of this application, there are multiple battery cabinets, and the connecting pipes include a first main pipe and multiple first branch pipes. The first main pipe is connected to the first outlet of the first fire-fighting device, and one end of each first branch pipe is connected to the first main pipe, and the other end is connected to the inlet of the corresponding cabinet body.

[0030] According to some embodiments of this application, the energy storage system further includes a frame, and the electrical cabinet and the battery cabinet are both mounted on the frame.

[0031] According to some embodiments of this application, the energy storage system further includes a third fire-fighting device, which includes a liquid-cooled pipe installed on the frame. The liquid-cooled pipe is adapted to connect to a liquid supply device and is also used to spray liquid onto the electrical cabinet and / or the battery cabinet.

[0032] According to some embodiments of this application, the energy storage system further includes a pipe support, through which the liquid-cooled pipe is mounted to the frame.

[0033] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0034] Figure 1 This is an internal schematic diagram of an electrical cabinet according to an embodiment of this application;

[0035] Figure 2 This is a perspective view of an electrical cabinet according to an embodiment of this application;

[0036] Figure 3 This is an exploded view of the ventilation system;

[0037] Figure 4 This is yet another perspective view of the electrical cabinet according to an embodiment of this application;

[0038] Figure 5 This is a schematic diagram of the electrical modules in the first and second sub-chambers;

[0039] Figure 6 This is a schematic diagram of an energy storage system according to an embodiment of this application;

[0040] Figure 7 It is a schematic diagram of the frame, the third fire protection device, and the pipe supports;

[0041] Figure 8 yes Figure 7 A magnified view of a portion of point A in the middle.

[0042] Figure label:

[0043] Energy storage system 100, electrical cabinet 10, cabinet 1, first chamber 11, first sub-chamber 111, second sub-chamber 112, second chamber 12, first partition 13, second partition 14, cabinet body 15, first cabinet door 16, second cabinet door 17, maintenance door 171, chamber air inlet 181, first air inlet 1811, second air inlet 1812, chamber air outlet 182, first air outlet 1821, second air outlet 1822, lifting lug 19, electrical module 2, high voltage module 21, disconnect switch 211, fuse 212, circuit breaker 213, Hall sensor 214, first busbar 215, second busbar 216, mounting plate 217, surge arrester 218, low voltage module 22, first fire-fighting device 3, control device 31, first storage device 32, first pipe 33. Second pipe joint 34. Ventilation device 4. Air hood 41. Air hood inlet 411. Air hood outlet 412. Top plate 413. Bottom plate 414. Side plate 415. Filter screen 42. Filter element 43. Fan 44. Seal 45. Second fire-fighting device 5. Second storage device 51. Second smoke detection device 52. Audible and visual alarm 61. Alarm bell 62. Fire extinguishing indicator light 63. Emergency start / stop button 64. Battery cabinet 20. Connecting pipe 30. Main pipe 301. Branch pipe 302. Frame 40. Third fire-fighting device 50. Liquid cooling pipe 501. First liquid inlet pipe 5011. Second liquid inlet pipe 5012. Pipe support 60. First support 601. Second support 602. Third support 603. Fourth support 604. Reinforcing beam 605. Support adapter 606. Detailed Implementation

[0044] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0045] In the description of this application, 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 one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] The following is combined Figures 1-8 The present application describes in detail an electrical cabinet 10 and an energy storage system 100 having the electrical cabinet 10 according to embodiments thereof.

[0047] Reference Figure 1As shown, the electrical cabinet 10 according to an embodiment of this application includes a cabinet 1, an electrical module 2, and a first fire-fighting device 3.

[0048] The cabinet 1 has a first chamber 11 and a second chamber 12, which are separated by a first partition 13. The electrical module 2 is located in the first chamber 11, and the first fire-fighting device 3 is located in the second chamber 12.

[0049] The first fire-fighting device 3 has at least one outlet for releasing fire-extinguishing substances to the outside of the cabinet 1.

[0050] The electrical module 2 and the first fire-fighting device 3 are integrated inside the cabinet 1, thus forming an integrated electrical cabinet 10. Placing the first fire-fighting device 3 and the electrical module 2 in one cabinet 1 helps reduce product costs.

[0051] The first chamber 11 and the second chamber 12 are independent chambers, and the internal structure of the cabinet 1 is divided into compartments. By setting up the first chamber 11 and the second chamber 12, the electrical module 2 and the first fire-fighting device 3 can be physically separated, and their installation and removal do not interfere with each other. By using the first partition 13 to separate the first chamber 11 and the second chamber 12, a fire in either the electrical module 2 or the first fire-fighting device 3 will not affect the other; the first partition 13 can effectively prevent the spread of fire. For example, during the use of the electrical cabinet 10, the electrical module 2 is prone to catching fire. The first partition 13 can control the fire within the first chamber 11, preventing the fire from spreading to the second chamber 12, thus not affecting the normal use of the first fire-fighting device 3.

[0052] According to the embodiment of this application, the electrical cabinet 10 separates the first chamber 11 and the second chamber 12 by using the first partition 13, which improves the safety performance of the electrical cabinet 10, so that the first fire-fighting device 3 will not be affected when the electrical module 2 catches fire, and the first fire-fighting device 3 can be used normally, which helps to reduce the losses caused by the fire of the electrical module 2.

[0053] In some embodiments of this application, the first partition 13 is a fireproof partition. By using a fireproof partition to separate the first chamber 11 and the second chamber 12, it is possible to better prevent the fire from affecting the other when one of the electrical module 2 and the first fire-fighting device 3 catches fire. For example, when the electrical module 2 catches fire, the fireproof partition can better control the fire within the first chamber 11, effectively preventing the fire from spreading to the second chamber 12, thus not affecting the normal use of the first fire-fighting device 3.

[0054] Fire-resistant partitions are fire-resistant, maintaining structural stability in high-temperature environments and exhibiting non-combustibility or extremely slow combustion. They also possess heat insulation properties, effectively blocking heat transfer and slowing the spread of fire. Furthermore, they are smoke-resistant, minimizing the generation of toxic fumes during fires and helping to reduce casualties. Finally, they are durable, maintaining their fire-resistant performance for an extended period without being significantly affected by environmental factors such as humidity or high temperatures.

[0055] In some embodiments, the thickness of the fireproof partition can be set to 30mm to 50mm, and it can withstand temperatures up to 1000℃ and fire resistance for more than 2 hours. For example, the thickness of the fireproof partition can be 30mm, 35mm, 40mm, 45mm, 50mm, etc.

[0056] In some embodiments, the fireproof partition can be made by coating the surface of the board with fire-retardant paint. For example, the board is a steel structure, and the fire-retardant paint is applied to the surface of the steel structure. When the fire-retardant paint is exposed to fire, it expands to form a heat insulation layer, protecting the steel structure from damage by high temperature. It can also prevent the high temperature in the first chamber 11 from affecting the first fire-fighting device 3 in the second chamber 12.

[0057] In other embodiments, the fireproof partition may also be made by attaching a layer of fireproof material to the surface of the board.

[0058] In some other embodiments, the fireproof partition can also be made directly from the fireproof material itself. For example, the fireproof partition is a fireproof board made of magnesium oxide (MgO), magnesium chloride (MgCl2), or magnesium sulfate (MgSO4) as the main raw materials, with the addition of glass fiber reinforcement. Another example is a calcium silicate fireproof board, with calcium silicate as the main component.

[0059] In some embodiments, the fireproof partition may include, but is not limited to, ceramic aerogel board, aerogel composite board or rock wool board.

[0060] It is understood that the examples of fire-retardant materials mentioned above are merely illustrative and should not be construed as limiting this application.

[0061] The fireproof partition can be fixed to the cabinet 1 by one or more of the following methods: adhesive fixing, welding fixing, fastener fixing, snap-fit ​​fixing, etc.

[0062] The extinguishing agents in the first fire-fighting device 3 can be water-based extinguishing agents, foam extinguishing agents, dry powder extinguishing agents, gaseous extinguishing agents, hydrogel extinguishing agents, perfluorohexanone extinguishing agents, and dry-water extinguishing agents, etc. Among them, water-based extinguishing agents use water as the main component, adding chemical reagents or altering the physical properties of water to enhance the extinguishing effect. Their extinguishing mechanism is to lower the temperature of the fire source through cooling and to form a water film on the surface of the combustible material, isolating oxygen. Foam extinguishing agents consist of foaming agents, foam stabilizers, viscosity reducers, antifreeze agents, etc. Their extinguishing mechanism is to generate foam that covers the surface of the combustible material, isolating oxygen and cooling the burning material. Dry powder extinguishing agents consist of extinguishing base materials (such as ammonium phosphate, sodium bicarbonate, etc.) and moisture-proof agents, anti-caking agents, etc. Their extinguishing mechanism is to chemically inhibit the combustion reaction, absorb heat, and form a covering layer to prevent reignition. Common gaseous fire extinguishing agents include carbon dioxide, heptafluoropropane, and inert gases (such as nitrogen and argon). Their extinguishing mechanism involves reducing oxygen concentration or chemically inhibiting the combustion reaction. Hydrogel fire extinguishing agents absorb heat, prevent oxygen supply, and weaken auxiliary heating, making them suitable for fires involving easily reignited materials such as lithium batteries. Perfluorohexanone fire extinguishing agents extinguish fires through cooling, chemical inhibition, and oxygen isolation, making them suitable for locations such as energy storage power stations. Dry-water fire extinguishing agents combine the advantages of dry powder and fine water mist, providing both physical cooling and chemical inhibition.

[0063] It is understood that the examples of the fire extinguishing substances mentioned above are merely illustrative and should not be construed as limiting this application.

[0064] According to the embodiment of this application, the electrical cabinet 10 separates the first chamber 11 and the second chamber 12 by using a fireproof partition, which improves the safety performance of the electrical cabinet 10, so that the first fire-fighting device 3 will not be affected when the electrical module 2 catches fire, and the first fire-fighting device 3 can be used normally, which helps to reduce the losses caused by the fire of the electrical module 2.

[0065] In some embodiments of this application, reference is made to Figure 1 , Figure 5As shown, the first chamber 11 includes a first sub-chamber 111 and a second sub-chamber 112, which are separated by a second partition 14. The electrical module 2 includes a high-voltage module 21 and a low-voltage module 22. The high-voltage module 21 is located in the first sub-chamber 111, and the low-voltage module 22 is located in the second sub-chamber 112. By using the second partition 14 to separate the first sub-chamber 111 and the second sub-chamber 112, a fire in either the high-voltage module 21 or the low-voltage module 22 will not affect the other. The second partition 14 can effectively prevent the spread of fire. For example, during the use of the electrical cabinet 10, the high-voltage module 21 is prone to catching fire. The second partition 14 can control the fire within the first sub-chamber 111, preventing the fire from spreading to the second sub-chamber 112 and affecting the low-voltage module 22. After the fire in the first compartment 111 is extinguished, the low-voltage module 22 in the second compartment 112 can be reused, which helps to reduce losses.

[0066] In some embodiments of this application, the second partition 14 is a fireproof partition. By using a fireproof partition to separate the first compartment 111 and the second compartment 112, it is possible to better prevent the fire from affecting the other when one of the high-voltage module 21 and the low-voltage module 22 catches fire. For example, when the high-voltage module 21 is prone to catching fire, the fireproof partition can control the fire within the first compartment 111, effectively preventing the fire from spreading to the second compartment 112 and affecting the low-voltage module 22.

[0067] In some embodiments of this application, the second partition 14 and the first partition 12 may be made of the same material or different materials.

[0068] The electrical cabinet 10 has a low-voltage area and a high-voltage area. The first compartment 111 is the high-voltage area, and the second compartment 112 is the low-voltage area. The high-voltage module 21 is a bus module, and the low-voltage module 22 is a power distribution module. The operating voltage of the high-voltage module 21 is usually higher than that of the low-voltage module 22.

[0069] In some embodiments, the power distribution module is provided with a mounting base to fix electronic components, EMCU (Energy Management Control Unit) boards, industrial computers, switching power supplies, DC copper busbars, switches, circuit breakers, fuses, AC surge arresters, relays, maintenance sockets, push-button switches, terminal blocks, and other power distribution devices, etc., which are not limited in this application. The mounting base may be a metal base.

[0070] In some embodiments, refer to Figure 5As shown, the busbar module is equipped with disconnect switches 211. The number of disconnect switches 211 is the same as the number of battery cabinets 20 connected to the electrical cabinet 10. For example, when there are 6 battery cabinets 20, the corresponding number of disconnect switches 211 is 6. The 6 disconnect switches 211 are the first disconnect switch 211a, the second disconnect switch 211b, the third disconnect switch 211c, the fourth disconnect switch 211d, the fifth disconnect switch 211e, and the sixth disconnect switch 211f, as shown in the figure. In the future, additional or fewer disconnect switches can be added according to different user needs.

[0071] To improve safety, the busbar module is also equipped with a fuse 212, a circuit breaker 213, and a Hall sensor 214. The Hall sensor 214 can monitor the output current of the busbar, the fuse 212 provides short-circuit protection for the power distribution module, and the circuit breaker 213 protects the output current of the client. Specifically, the battery cabinet 20 outputs current to the outside, which is divided into positive and negative terminals. The positive current passes through the isolating switch 211 and then through the first busbar 215, and is connected to the client wiring harness through the incoming terminal on the first busbar 215. The first busbar 215 is equipped with a Hall sensor 214 to monitor the output current. When a short circuit or excessive current is detected in the positive output current, the signal is fed back to the EMCU. The EMCU then cuts off the power to the entire energy storage system 100, thereby providing safety protection for the system circuit. Furthermore, the negative current passes through the isolating switch 211, then through the second busbar 216, then through the fuse 213, and then through the outgoing terminal on the second busbar 216 to connect to the client's wiring harness. Similarly, when the negative current is short-circuited or too large, its current value exceeds the limit value of the fuse 213, and the fuse 213 immediately disconnects, cutting off the electrical connection with the client system, thereby protecting the safety of the client system circuit.

[0072] During operation, the low-voltage module 22 and the high-voltage module 21 of the electrical cabinet 10 will generate heat. This heat will cause the temperature of the low-voltage module 22 and the high-voltage module 21 to rise. If the temperature of the low-voltage module 22 and the high-voltage module 21 is too high, it will cause the electronic components of the low-voltage module 22 and the high-voltage module 21 to fail, affecting the operation of the system.

[0073] To address this issue, in some embodiments of this application, at least one of the first sub-chamber 111 and the second sub-chamber 112 is adapted to be simultaneously connected to both the chamber air inlet 181 and the chamber air outlet 182, which are disposed on the cabinet 1. Air from outside the electrical cabinet 10 enters the corresponding sub-chamber through the chamber air inlet 181, flows through the electrical module 2, and then exits through the chamber air outlet 182. When the temperature of the air outside the electrical cabinet 10 is lower than the temperature of the electrical module 2, the cooler air exchanges heat with the electrical module 2, carrying away the heat from the electrical module 2 and preventing the electrical module 2 from overheating and catching fire or affecting the performance of electronic components.

[0074] To further address the issue of heat accumulation in the low-voltage module 22 and the high-voltage module 21, in some embodiments of this application, the electrical cabinet 10 further includes a ventilation device 4. At least one of the first sub-chamber 111 and the second sub-chamber 112 is provided with the ventilation device 4, which includes a fan 44. A temperature detection device is provided in the first sub-chamber 111 to detect the temperature inside the first sub-chamber 111. When the temperature value detected by the temperature detection device reaches a first preset threshold, the electrical module 2 controls the fan 44 to rotate.

[0075] When fan 44 rotates, it provides driving force to the air, causing the air outside the electrical cabinet 10 to enter the corresponding compartment through the chamber air inlet 181, flow through the electrical module 2, and then exit from the chamber air outlet 182. During this process, when the temperature of the air outside the electrical cabinet 10 is lower than the temperature of the electrical module 2, the cooler air exchanges heat with the electrical module 2, carrying away its heat and preventing it from overheating and catching fire or affecting the performance of electronic components. By setting up fan 44, the hot air inside the electrical cabinet 10 can quickly exchange heat with the cold air outside. The cold air from outside enters the cabinet and then flows out through the chamber air outlet 182, thus forming an air circulation with the outside environment.

[0076] In a specific embodiment, there can be one or more fans 44. By increasing the number of fans 44, the driving force for airflow can be increased, thereby improving the cooling effect on the electrical module 2 and preventing the electrical module 2 from overheating and being damaged.

[0077] The temperature detection device is a temperature sensor. The first preset threshold can be determined according to the performance of the electronic components of the electrical module 2. For example, the first preset threshold can be 35℃, 40℃, 45℃, etc.

[0078] In some embodiments of this application, the first preset threshold is set to 40°C. It can also be set to other temperature values ​​according to the upper limit of the operating temperature of different electronic components. No restrictions are imposed here.

[0079] The high-voltage module 21 generates more heat than the low-voltage module 22 when it is working. Therefore, the temperature detection device is placed in the first compartment 111 so that it can be close to the location where the electronic components generate the most heat, so as to monitor the highest temperature point in the high-voltage module 21.

[0080] In some embodiments of this application, ventilation louvers may be provided at the air inlet 181 of the chamber. The gap between adjacent blades of the ventilation louvers is used for airflow. By providing ventilation louvers, the air inlet 181 of the chamber can be protected to prevent debris from entering the first chamber 11 through the air inlet 181 of the chamber.

[0081] In some embodiments of this application, the blade angle of the ventilation louvers can be adjusted, thereby changing the flow direction of the airflow passing through the ventilation louvers.

[0082] In some embodiments of this application, reference is made to Figures 2-4 As shown, the air inlet 181 of the chamber can be constructed as multiple ventilation holes. These ventilation holes can be arranged in a matrix with multiple rows and columns, which is more aesthetically pleasing.

[0083] In some embodiments of this application, reference is made to Figure 2 , Figure 4 As shown, an air outlet filter window can be installed at the air outlet 182 of the chamber. The pores on the air outlet filter window are used for airflow. By installing the air outlet filter window, the air outlet 182 of the chamber can be protected to prevent debris from entering the first chamber 11 through the air outlet 182 of the chamber.

[0084] In some embodiments of this application, reference is made to Figure 3 As shown, the ventilation device 4 may include: a fan hood 41, a filter screen 42, and a filter element 43. The fan hood 41 has a fan hood inlet 411 and a fan hood outlet 412, which are connected. A fan 44 is installed inside the fan hood 41, and the fan hood 41 is installed on the cabinet 1. The filter screen 42 is installed on the fan hood 41 and / or the cabinet 1, and is located at the fan hood inlet 411. The filter screen 42 has filter holes. The filter element 43 is located between the filter screen 42 and the corresponding chamber inlet 181, and is attached to the cabinet 1 and covers the corresponding chamber inlet 181.

[0085] In some embodiments of this application, the filter 42 is installed on the shroud 41, for example, the filter 42 is connected to the shroud 41 by welding or bonding.

[0086] In some embodiments of this application, the filter 42 is installed on the cabinet 1, for example, the filter 42 is connected to the cabinet 1 by welding, bonding or other methods.

[0087] In some embodiments of this application, the filter 42 is installed on both the hood 41 and the cabinet 1. For example, the filter 42 is connected to the hood 41 by welding or bonding, and the filter 42 is connected to the cabinet 1 by welding or bonding.

[0088] In some embodiments of this application, reference is made to Figures 2-4 As shown, cabinet 1 includes cabinet body 15 and first cabinet door 16, fan hood 41 is installed on first cabinet door 16, and filter screen 42 is located between first cabinet door 16 and fan hood 41.

[0089] In some embodiments of this application, reference is made to Figure 3 As shown, a sealing element 45 is provided between the fan cover 41 and the first cabinet door 16 to form a sealed state at the connection between the fan cover 41 and the first cabinet door 16. The material of the sealing element 45 includes, but is not limited to, EPDM (Ethylene Propylene Diene Monomer) or foamed silicone, or it can be silicone rubber. The material of the sealing element 45 is not specifically limited here.

[0090] In some embodiments of this application, reference is made to Figure 3 As shown, the side of the filter screen 42 facing the air inlet 181 of the chamber has a groove shape, and the filter element 43 can be fixed in the groove of the filter screen 42. Therefore, the filter element 43 is accurately positioned on the filter screen 42, and the filter element 43 is not easy to detach from the filter screen 42. The filter screen 42 also has a snap-fit ​​structure, and the filter element 43 can be snapped and fixed in the groove of the filter screen 42 through the snap-fit ​​structure, thereby facilitating the installation and removal of the filter element 43 on the filter screen 42.

[0091] When cold air from outside the cabinet flows through the filter element 43, the filter element 43 can absorb moisture and dust impurities in the cold air. The filter screen 42 is used to fix the filter element 43 between the inner wall of the cabinet 1 and the filter screen 42. By setting the filter element 43 and the filter screen 42, the electrical cabinet 10 can meet the IP54 waterproof and dustproof requirements.

[0092] In some embodiments of this application, the filter element 43 can be filter cotton, and the filter cotton can have a filtration efficiency of G2 level or above, with a good filtration effect.

[0093] In some embodiments, the thickness of the filter cotton is not less than 10 mm to meet the requirements of filtration efficiency and air resistance loss. For example, the thickness of the filter cotton can be 10 mm, 13 mm, 15 mm, 20 mm, etc.

[0094] In some embodiments of this application, such as Figure 3 As shown, the air inlet 411 of the hood is larger than the corresponding air inlet 181 of the chamber. By setting the hood 41, the cold air outside the cabinet can flow in the set direction without leakage.

[0095] In some embodiments of this application, such as Figure 3 As shown, when the temperature value detected by the temperature detection device reaches the first preset threshold, the electrical module 2 controls the fan 44 to rotate. Outside air can enter the hood 41 through the chamber air inlet 181, filter element 43, and filter screen 42, and then enter the corresponding compartment. Finally, it is discharged from the electrical cabinet 10 through the air outlet filter window, realizing air turbulence inside the cabinet, so as to exchange hot air inside the cabinet with cold air outside the cabinet, thereby realizing ventilation and heat exchange between the electrical cabinet 10 and the outside.

[0096] To better understand the specific implementation of the heat exchange process, please refer to the following: Figure 3 As shown, when the electrical cabinet 10 is operating normally, the temperature of the electronic components in the high-voltage module 21 continues to rise over time. When the temperature reaches the sensing value set by the temperature sensor (i.e., the first preset threshold), the fan 44 turns on. Cold air from outside the electrical cabinet 10 enters the cabinet through the ventilation hole (i.e., the chamber air inlet 181) on the cabinet 1 (e.g., the first cabinet door 16). The ventilation hole is made of a waterproof structure. The cold air outside the cabinet contains fine powder dust. When this powder dust passes through the filter cotton, it will be blocked outside the cabinet, thereby reducing the excessive entry of dust from the outside air into the cabinet. Furthermore, the cold air from outside the cabinet enters the fan shroud 41 through the filter screen 42, and then passes through the fan 44 to reach the electrical module 2. As the cold air from outside the cabinet continuously flows into the cabinet and turbulents the air inside the cabinet, the air pressure inside the cabinet 15 increases. Driven by the air pressure, the hot air inside the electrical module 2 is discharged outside the cabinet through the air outlet filter window, thereby realizing ventilation and heat exchange between the electrical cabinet 10 and the outside.

[0097] In some embodiments of this application, the air outlet 412 of the hood is located above the air inlet 411 of the hood, and the air outlet 412 of the hood is located on the side of the air inlet 411 of the hood away from the air inlet 181 of the chamber. The hood 41 includes a top plate 413, a bottom plate 414 and a side plate 415. The bottom plate 414 is located below the top plate 413. The top plate 413 and the bottom plate 414 are connected by at least two side plates 415. The angle between the bottom plate 414 and the horizontal plane is greater than 0° and less than 90°. The upper end of the bottom plate 414 faces the air outlet 412 of the hood, and the lower end of the bottom plate 414 faces the air inlet 411 of the hood. When the air carrying moisture enters the hood 41 from the air inlet 181 of the chamber through the filter element 43 and the filter screen 42, this moisture is blocked by the base plate 414 as it flows with the cold air, and flows along the base plate 414 to the air inlet 411 of the hood. Therefore, most of this moisture will not reach the air outlet 412 of the hood, and will not reach the electrical module 2.

[0098] Reference Figure 3As shown, the angle between the base plate 414 and the horizontal plane is θ. By setting 0° < θ < 90°, the base plate 414 can play a guiding role, directing the moisture on the base plate 414 towards the air inlet 411 of the wind hood.

[0099] Optionally, θ can be 15°, 30°, 45°, 60°, 75°, etc.

[0100] In some embodiments of this application, the hood 41 can also be constructed as a cylindrical hood. The cylindrical hood is inclined, with one end facing the chamber air inlet 181 as the hood air inlet 411 and the other end away from the chamber air inlet 181 as the hood air outlet 412. The angle between the axis of the cylindrical hood and the horizontal plane is greater than 0° and less than 90°. This allows the inner surface of the cylindrical hood to guide moisture flow towards the hood air inlet 411. For example, the angle between the axis of the cylindrical hood and the horizontal plane can be 15°, 30°, 45°, 60°, 75°, etc.

[0101] In some embodiments of this application, reference is made to Figures 2-4 As shown, the cabinet 1 is provided with a first air inlet 1811 and a first air outlet 1821. The first air inlet 1811 is the chamber air inlet 181 of the first sub-chamber 111, and the first air outlet 1821 is the chamber air outlet 182 of the first sub-chamber 111. Both the first air inlet 1811 and the first air outlet 1821 are connected to the first sub-chamber 111. A first ventilation device is set in the first sub-chamber 111. The first ventilation device includes a first fan. When the temperature value detected by the temperature detection device reaches a first preset threshold, the first fan is started to rotate.

[0102] The cabinet 1 is provided with a second air inlet 1812 and a second air outlet 1822. The second air inlet 1812 is the chamber air inlet 181 of the second sub-chamber 112, and the second air outlet 1822 is the chamber air outlet 182 of the second sub-chamber 112. Both the second air inlet 1812 and the second air outlet 1822 are connected to the second sub-chamber 112. A second ventilation device is set in the second sub-chamber 112. The second ventilation device includes a second fan. When the temperature value detected by the temperature detection device reaches a first preset threshold, the second fan is started to rotate.

[0103] In some embodiments of this application, reference is made to Figure 5 As shown, the high-voltage module 21 includes a mounting plate 217 and a surge arrester 218. The mounting plate 217 is mounted on the cabinet 1, and the surge arrester 218 is mounted on the mounting plate 217.

[0104] The mounting plate 217 can be directly installed on cabinet 1 or indirectly installed on cabinet 1. For example, in... Figure 5In the illustrated embodiment, the high-voltage module 21 includes a first mounting base, which is mounted on the cabinet 1. A mounting plate 217 is mounted on the first mounting base, thus the mounting plate 217 is indirectly mounted on the cabinet 1 via the first mounting base. In some embodiments not shown in the figures, the mounting plate 217 can be directly mounted on the cabinet 1.

[0105] The surge arrester 218 provides surge protection for the energy storage system 100, which includes the electrical cabinet 10 and the battery cabinet 20, thereby protecting the electronic components inside the electrical cabinet 10 from damage by lightning strikes and greatly improving the service life of the entire energy storage system 100.

[0106] In power systems, a surge refers to a momentary spike in voltage or current. It is a brief, dramatic fluctuation in voltage or current, typically lasting only a few microseconds to milliseconds, but carrying significant energy. Surges can be caused by lightning strikes, the starting or stopping of large equipment, grid switching, etc. For example, when a large motor in a factory starts, it can cause a momentary drop in grid voltage, which then recovers; this phenomenon is a surge. Installing surge arresters (218) can reduce the occurrence of surges.

[0107] In some embodiments of this application, reference is made to Figures 2-4 As shown, cabinet 1 includes a cabinet body 15 and a first cabinet door 16. The first cabinet door 16 is installed on the cabinet body 15 and is positioned opposite to the first chamber 11. When the first cabinet door 16 is open, the first chamber 11 is exposed; when the first cabinet door 16 is closed, the first chamber 11 is covered by the first cabinet door 16. The first cabinet door 16 facilitates the installation, disassembly, repair, and subsequent maintenance of the electrical module 2. The chamber air inlet 181 can be located on the first cabinet door 16.

[0108] In a specific embodiment, the first cabinet door 16 and the cabinet body 15 can be rotatably connected, and the first cabinet door 16 can be rotated to open and close; the first cabinet door 16 can also be fastened to the cabinet body 15, and when it is necessary to open the first cabinet door 16, the first cabinet door 16 can be removed from the cabinet body 15 as a whole.

[0109] In some embodiments of this application, reference is made to Figure 2 , Figure 4 As shown, cabinet 1 includes a cabinet body 15 and a second cabinet door 17. The second cabinet door 17 is installed on the cabinet body 15 and is positioned opposite to the second chamber 12. When the second cabinet door 17 is open, the second chamber 12 is exposed; when the second cabinet door 17 is closed, the second chamber 12 is covered by the second cabinet door 17. By providing the second cabinet door 17, the installation, disassembly, repair, and subsequent maintenance of the first fire-fighting device 3 are facilitated.

[0110] In a specific embodiment, the second cabinet door 17 can be rotatably connected to the cabinet body 15, and the second cabinet door 17 can be rotated to open and close; the second cabinet door 17 can also be fastened to the cabinet body 15, and when it is necessary to open the second cabinet door 17, the second cabinet door 17 can be removed from the cabinet body 15 as a whole.

[0111] In some embodiments of this application, reference is made to Figure 2 , Figure 4 As shown, the second cabinet door 17 is provided with a maintenance opening, which connects the second chamber 12 to the outside of the cabinet 1. A maintenance door 171 is provided at the maintenance opening. When the maintenance door 171 is open, the maintenance opening is exposed; when the maintenance door 171 is closed, the maintenance opening is covered by the maintenance door 171. By providing the second cabinet door 17, the later maintenance of the first fire-fighting device 3 is facilitated.

[0112] In a specific embodiment, the maintenance door 171 and the second cabinet door 17 can be rotatably connected, and the maintenance door 171 can be rotated to open and close; the maintenance door 171 can also be fastened to the second cabinet door 17, and when it is necessary to open the maintenance door 171, the maintenance door 171 can be removed from the second cabinet door 17 as a whole.

[0113] In some embodiments of this application, reference is made to Figure 1 As shown, the first fire-fighting device 3 includes a control device 31 and a first storage device 32. The first storage device 32 is connected to the control device 31, and stores fire extinguishing materials. The first storage device 32 is connected to the first outlet. The control device 31, also known as the fire control unit, can control whether the first storage device 32 releases fire extinguishing materials.

[0114] In some embodiments of this application, the first storage device 32 may be a gas cylinder containing perfluorohexanone fire extinguishing agent, the gas cylinder being fixed to a clamp, and the clamp being fixed to the cabinet 1.

[0115] In some embodiments of this application, reference is made to Figure 4 As shown, the first fire-fighting device 3 also includes: a first pipe 33, one end of the first pipe 33 is connected to the first storage device 32, and the other end of the first pipe 33 forms the first outlet of the first fire-fighting device 3.

[0116] In some embodiments, the first storage device 32 is provided with a first pipe connector, one end of which is connected to the first storage device 32 and the other end of which is connected to the first pipe 33. In other embodiments, the first pipe 33 is directly connected to the first storage device 32 without going through a pipe connector.

[0117] In some embodiments of this application, reference is made to Figure 5As shown, the electrical cabinet 10 also includes a second fire-fighting device 5, which is installed in the first chamber 11. The second fire-fighting device 5 includes a second storage device 51 and a second smoke detection device 52. The second storage device 51 is connected to the control device 31 and stores fire extinguishing materials. The second smoke detection device 52 is connected to the control device 31 and is used to detect smoke concentration. When the smoke concentration detected by the second smoke detection device 52 reaches a second preset threshold, the second storage device 51 releases fire extinguishing materials into the first chamber 11.

[0118] The extinguishing substance stored in the second storage device 51 may be the same as or different from the extinguishing substance stored in the first storage device 32. For example, in some embodiments, the extinguishing substance stored in the second storage device 51 may be an aerosol (a type of extinguishing agent).

[0119] The first fire-fighting device 3 and the second fire-fighting device 5 belong to the fire protection system. In addition to the control device 31, the fire protection system can also be equipped with input / output modules for auxiliary control and UPS backup batteries. This allows the fire protection system to continue to supply power even in the event of thermal runaway and power failure of the whole system, ensuring that the fire protection system can start the fire extinguishing procedure and extinguish the fire normally.

[0120] In some embodiments of this application, the first fire-fighting device 3 includes: a third storage device connected to a control device 31, the third storage device storing fire extinguishing material, and the third storage device having a second outlet for releasing the fire extinguishing material into the first chamber 11. When the smoke concentration in the first chamber 11 reaches a second preset threshold, the third storage device releases the fire extinguishing material into the first chamber 11. The smoke concentration in the first chamber 11 can be obtained by a smoke detection device installed in the first chamber 11.

[0121] To enhance the alertness of the electrical cabinet 10 to users, in some embodiments of this application, the electrical cabinet 10 further includes an alarm device. The alarm device is installed in the cabinet 1 and is electrically connected to a control device 31. The control device 31 is used to control the alarm device to automatically sound an alarm in the event of a fire. (Refer to...) Figure 2 , Figure 4 As shown, the alarm device includes one or more combinations of an audible alarm, a visual alarm, an audible and visual alarm 61, and a fire extinguishing indicator light 63. By installing the alarm device, the electrical cabinet 10 can sound an alarm in case of an emergency, thus improving the safety of the electrical cabinet 10.

[0122] In some embodiments, each of the sound alarm, light alarm, and audible-visual alarm 61 can be linked with the second smoke detection device 52. When the smoke concentration detected by the second smoke detection device 52 reaches a second preset threshold, the sound alarm, light alarm, and audible-visual alarm 61 can issue an alarm signal.

[0123] Among them, the sound alarm can issue a danger warning by emitting a sound signal, and the sound alarm can be an alarm bell 62; the light alarm can issue a danger warning by emitting a light signal; the sound and light alarm 61 can issue sound and light signals at the same time, and issue a danger warning by emitting sound and light signals. The sound is usually a high-decibel alarm sound, and the light signal can be a flashing light, such as red, yellow or blue, etc. Through the dual stimulation of sound and light, it can more effectively attract people's attention.

[0124] The fire extinguishing indicator light 63 can be used to indicate whether the first storage device 32 is releasing fire extinguishing material. When the first storage device 32 is releasing fire extinguishing material, the fire extinguishing indicator light 63 lights up and emits a light signal, that is, an alarm signal is emitted. When the first storage device 32 is not releasing fire extinguishing material, the fire extinguishing indicator light 63 does not light up and no alarm signal is emitted.

[0125] In some embodiments, a flow detection device is provided at the outlet of the first storage device 32. When the first storage device 32 is releasing extinguishing material, the flow detection device can detect the flow of extinguishing material. When the first storage device 32 is not releasing extinguishing material, the flow detection device does not detect the flow of extinguishing material. The extinguishing indicator light 63 and the flow detection device are both electrically connected to the control device 31. The flow detection device transmits the detection result to the control device 31, and the control device 31 controls the extinguishing indicator light 63 to respond accordingly, either lighting up or turning off.

[0126] In some embodiments of this application, reference is made to Figure 2 , Figure 4 As shown, the first cabinet door 16 is located on the front of the cabinet 1, and the alarm device can be installed on the first cabinet door 16 so that the user can see the alarm device intuitively.

[0127] In some embodiments of this application, reference is made to Figure 2 , Figure 4 As shown, the electrical cabinet 10 also includes an emergency start / stop button 64, which is installed in the cabinet 1 and electrically connected to the control device 31. The emergency start / stop button 64 is used to control the first storage device 32 to start releasing fire extinguishing material or stop releasing fire extinguishing material. By setting the emergency start / stop button 64, the first storage device 32 can be mechanically controlled to selectively release fire extinguishing material, improving the safety and controllability of the electrical cabinet 10.

[0128] In some embodiments, a valve is provided at the outlet of the first storage device 32. The valve is electrically connected to the control device 31. When the first storage device 32 needs to release fire extinguishing material, the emergency start / stop button 64 is clicked, and the control device 31 controls the valve to open. When the first storage device 32 does not need to release fire extinguishing material, the emergency start / stop button 64 is double-clicked, and the control device 31 controls the valve to close.

[0129] In some embodiments, the emergency start / stop button 64 can also be used to initiate emergency start / stop in case of false alarms. For example, when the electrical cabinet 10 catches fire but the alarm device does not issue an alarm signal, clicking the emergency start / stop button 64 will cause the control device 31 to control the valve to open and extinguish the fire.

[0130] In some embodiments of this application, reference is made to Figure 2 , Figure 4 As shown, the first cabinet door 16 is located on the front of the cabinet 1, and the emergency start / stop button 64 can be installed on the first cabinet door 16, so that users can directly press the emergency start / stop button 64.

[0131] In some embodiments of this application, the electrical cabinet 10 also includes a manual alarm button. The manual alarm button is installed in the cabinet 1 and is electrically connected to the control device 31. The manual alarm button can be manually activated to emit an alarm signal, and the alarm signal is activated through mechanical operation. When the alarm device malfunctions and cannot emit an alarm automatically, the user can manually control the alarm device to emit an alarm signal, thereby improving the safety of the electrical cabinet 10.

[0132] In some embodiments of this application, the manual alarm button is located in the second chamber 12 and near the maintenance port. When the electronic alarm system fails, the user can quickly open the maintenance door 171 and manually activate the manual alarm button to send an alarm signal, reminding non-professionals not to approach the energy storage system 100, including the electrical cabinet 10.

[0133] Reference Figures 1-2 , Figures 4-5 As shown, the top of the cabinet 15 is also provided with a lifting lug 19. The lifting lug 19 has a lifting hole for the hook of the hoisting equipment to be inserted, which makes it convenient to use the hoisting equipment to lift the electrical cabinet 10 as a whole and move the position of the electrical cabinet 10.

[0134] Reference Figure 6As shown, according to another embodiment of this application, the energy storage system 100 may include an electrical cabinet 10, a connecting pipe 30, and a battery system. The battery system includes at least one battery cabinet 20. The electrical cabinet 10 is the same as the one described in the above embodiment. The battery cabinet 20 includes a cabinet body and a battery disposed within the cabinet body. The battery is electrically connected to the electrical module 2. The cabinet body has an inlet, and the connecting pipe 30 connects the inlet of the cabinet body to the first outlet of the first fire-fighting device 3. After the fire-extinguishing material in the first storage device 32 is released through the first outlet, it can further enter the battery cabinet 20 through the connecting pipe 30 and the inlet of the cabinet body for fire extinguishing of the battery cabinet 20.

[0135] In some embodiments of this application, combined with Figure 4 and Figure 6 The first fire-fighting device 3 includes a first pipe 33, one end of which is connected to the first storage device 32, and the other end of which forms the first outlet of the first fire-fighting device 3. The first pipe 33 is connected to one end of the second pipe joint 34, and the other end of the second pipe joint 34 is connected to the connecting pipe 30.

[0136] In some embodiments of this application, reference is made to Figure 2 , Figures 4-6 The second pipe connector 34 can be fixedly installed on the cabinet 15, thereby preventing the first pipe 33 from shaking randomly. The connection method between the second pipe connector 34 and the cabinet 15 is not limited to threaded fixing, welding fixing, adhesive fixing, etc.

[0137] In some embodiments, the battery cabinet 20 is one.

[0138] In other embodiments, there are multiple battery cabinets 20. For example, the number of battery cabinets 20 can be 2, 3, 4, 5, 6, or more. Figure 6 In the example shown, there are six battery cabinets 20, and the battery system consists of six battery cabinets 20: a first battery cabinet 20a, a second battery cabinet 20b, a third battery cabinet 20c, a fourth battery cabinet 20d, a fifth battery cabinet 20e, and a sixth battery cabinet 20f. In some embodiments not shown in the figure, the battery system may consist of the first battery cabinet 20a and the second battery cabinet 20b, or the first battery cabinet 20a, the second battery cabinet 20b, and the third battery cabinet 20c, or the first battery cabinet 20a, the second battery cabinet 20b, the third battery cabinet 20c, and the fourth battery cabinet 20d, or the first battery cabinet 20a, the second battery cabinet 20b, the third battery cabinet 20c, the fourth battery cabinet 20d, and the fifth battery cabinet 20e. Each combination represents a type of system, and each type of system can meet user needs.

[0139] The electrical cabinet 10 of this application can accommodate different capacity requirements. For example, the energy storage system 100 of this application can be equipped with 2 to 6 battery cabinets 20, totaling 5 combinations, which means 5 different requirements. Each requirement requires a different capacity of electrical cabinet 10. To avoid excessive product costs due to too many versions of electrical cabinet 10, this application provides an integrated electrical cabinet 10, which, as the name suggests, combines these 5 different capacity electrical cabinets 10 into one compatible unit, thus greatly reducing product costs.

[0140] It should be noted that, based on different user needs, this application mainly responds to system energy in the range of 2MW to 5MW. In other words, the energy storage system 100 is set up with, but is not limited to, 2 to 6 battery cabinets 20. Depending on the number of battery cabinets 20, the system energy can vary in the range of 2MW to 5MW, and the electrical cabinet 10 can be compatible.

[0141] In related technologies, energy storage systems include containerized energy storage and industrial and commercial energy storage. Currently, the capacity of containerized energy storage on the market is generally above 5MW, while industrial and commercial energy storage is generally within 0 to 2MW. With the increase in application scenarios of industrial and commercial energy storage (such as industrial parks and power plants), these users are gradually putting forward greater and greater demands for industrial and commercial energy storage capacity. The energy storage system 100 of this application increases or decreases the number of battery cabinets 20 so that the system capacity can be in the range of 2MW to 5MW.

[0142] In some embodiments, there are multiple battery cabinets 20, and the multiple battery cabinets 20 can be arranged in parallel, so that each battery cabinet 20 does not affect the others.

[0143] In some embodiments, there are multiple battery cabinets 20, and the multiple battery cabinets 20 can be connected in series.

[0144] In some embodiments, there are multiple battery cabinets 20, which are divided into multiple groups. Each group includes one or more battery cabinets 20. The battery cabinets 20 in each group are connected in series, and the multiple groups of battery cabinets 20 are connected in parallel.

[0145] The internal structure of the battery cabinet 20 is relatively mature, so I will not go into too much detail here.

[0146] According to the energy storage system 100 of this application embodiment, its electrical cabinet 10 separates the first chamber 11 and the second chamber 12 by using a first partition 13, which improves the safety performance of the electrical cabinet 10, so that when the electrical module 2 catches fire, it will not affect the first fire-fighting device 3. The first fire-fighting device 3 can be used normally to extinguish the fire in the battery cabinet 20, which helps to reduce the losses caused by the fire in the electrical module 2.

[0147] In related technologies, energy storage systems are mostly integrated units, with the battery system and fire protection system integrated into a single cabinet. Therefore, when the battery system experiences thermal runaway (due to excessively high external temperature of individual cells or short circuits causing a rapid increase in internal temperature or combustion), it will inevitably affect and cause the fire protection devices to fail and stop working, ultimately rendering the entire fire protection system ineffective and useless. According to the energy storage system 100 of this application embodiment, the first fire protection device 3 is integrated into the electrical cabinet 10, so that the first fire protection device 3 and the battery cabinet 20 are set up in separate cabinets, which helps to reduce the impact of a fire in the battery cabinet 20 on the first fire protection device 3.

[0148] In some embodiments of this application, the energy storage system 100 further includes a first smoke detection device. At least one battery cabinet 20 is provided with a first smoke detection device. The first smoke detection device is connected to the control device 31 of the first fire-fighting device 3. The first smoke detection device is used to detect the smoke concentration. When the smoke concentration detected by the first smoke detection device reaches a third preset threshold, the first fire-fighting device 3 releases fire extinguishing material to the battery cabinet 20.

[0149] In some embodiments, the alarm device is used to issue an alarm signal when the smoke concentration detected by the first smoke detection device reaches a third preset threshold.

[0150] Specifically, each of the sound alarm, light alarm, and audible-visual alarm 61 can be linked with the first smoke detection device. When the smoke concentration detected by the first smoke detection device reaches the third preset threshold, the sound alarm, light alarm, and audible-visual alarm 61 can issue an alarm signal.

[0151] In some embodiments of this application, reference is made to Figure 6 As shown, there are multiple battery cabinets 20, and the connecting pipes 30 include a main pipe 301 and multiple branch pipes 302. The main pipe 301 is connected to the first outlet of the first fire-fighting device 3, and one end of each branch pipe 302 is connected to the main pipe 301, and the other end is connected to the inlet of the corresponding cabinet body. In this way, the extinguishing material of the first fire-fighting device 3 can enter the corresponding battery cabinet 20 through the main pipe 301 and the multiple branch pipes 302.

[0152] The first pipe 33 is connected to one end of the second pipe joint 34, and the other end of the second pipe joint 34 is connected to the main pipe 301. Furthermore, the main pipe 301 is connected to the branch pipe 302 through the first adapter, and the branch pipe 302 is connected to the inlet on the battery cabinet 20. A second adapter is provided at the inlet, and the branch pipe 302 is connected to the second adapter.

[0153] In some embodiments of this application, the second pipe fitting 34 is an elbow pipe fitting, and the bending angle of the elbow pipe fitting can be 90°.

[0154] In some embodiments of this application, the second adapter can be fixedly installed on the cabinet body, and the connection method between the second adapter and the cabinet body is not limited to threaded fixing, welding fixing, adhesive fixing, etc.

[0155] When the battery cabinet 20 experiences thermal runaway, it will inevitably produce flammable gas and smoke. When the first smoke detection device (or the first smoke detection device and the temperature detector) inside the battery cabinet 20 are triggered, a signal is transmitted to the control device 31 of the first fire-fighting device 3. The control device 31 then sends a signal to the first storage device 32, which releases a fire extinguishing agent, such as perfluorohexanone. The perfluorohexanone fire extinguishing agent then enters the main pipe 301 through the first pipe 33, and from there through the main pipe 301 into the branch pipe 302, ultimately entering the battery cabinet 20. It should be noted that the number of branch pipes 302 is the same as the number of battery cabinets 20, and all branch pipes 302 are connected to the main pipe 301.

[0156] Optionally, the cross-sectional shape of each of the first pipe 33, main pipe 301, and branch pipe 302 is not limited, and is not limited to regular shapes such as circles or squares; it can also be an irregular shape. The material of each pipe is not limited to metal or fire-resistant and high-temperature resistant materials. All connections of the pipes and pipe fittings are equipped with sealing structures. For example, the connections between the first pipe 33 and the first pipe fitting, the first pipe 33 and the second pipe fitting 34, the main pipe 301 and the second pipe fitting 34, the main pipe 301 and the first adapter, the first adapter and the branch pipe 302, and the branch pipe 302 and the second adapter are all equipped with sealing structures.

[0157] In some embodiments of this application, reference is made to Figure 6 As shown, the energy storage system 100 also includes a frame 40, on which the electrical cabinet 10 and battery cabinet 20 are both mounted. The electrical cabinet 10 and battery cabinet 20 are connected as a whole by the frame 40, fixing their relative positions and facilitating the overall movement of the energy storage system 100. For example, the electrical cabinet 10 and battery cabinet 20 can be mounted to the frame 40 using bolts for easy assembly and disassembly.

[0158] In some embodiments of this application, reference is made to Figure 7 As shown, the energy storage system 100 also includes a third fire-fighting device 50, which includes a liquid-cooled pipe 501. The liquid-cooled pipe 501 is installed on the frame 40 and is adapted to connect to a liquid supply device. The liquid-cooled pipe 501 is also used to spray liquid onto the electrical cabinet 10 and / or battery cabinet 20. Specifically, the liquid flowing from the liquid supply device is sprayed onto the electrical cabinet 10 and / or battery cabinet 20 through the liquid-cooled pipe 501 to cool the sprayed objects.

[0159] In some embodiments, the liquid supply device may be a fire hose, faucet, water tank, etc. at the user end.

[0160] In a specific embodiment, the liquid cooling pipe 501 can be used to spray liquid onto the electrical cabinet 10, or onto the battery cabinet 20, or simultaneously onto both the electrical cabinet 10 and the battery cabinet 20.

[0161] In some embodiments, the liquid may be water, oil, or other liquids.

[0162] It should be noted that the cross-sectional shape of the liquid cooling pipe 501 is not limited, and is not limited to regular shapes such as circles or squares; it can also be an irregular shape. The material of the liquid cooling pipe 501 is not limited to metal or fire-resistant and high-temperature resistant materials.

[0163] In some embodiments of this application, reference is made to Figure 7 As shown, the liquid cooling pipeline 501 includes a first liquid inlet pipeline 5011 and a second liquid inlet pipeline 5012. One end of the first liquid inlet pipeline 5011 is connected to a liquid supply device, and the other end is connected to the second liquid inlet pipeline 5012. The second liquid inlet pipeline 5012 is positioned directly above the battery cabinet 20 and / or electrical cabinet 10. A nozzle is provided on the second liquid inlet pipeline 5012, and the liquid in the second liquid inlet pipeline 5012 is suitable for spraying onto the battery cabinet 20 and / or electrical cabinet 10 through the nozzle.

[0164] In some embodiments, each battery cabinet 20 and electrical cabinet 10 has at least one nozzle directly above it.

[0165] In some embodiments of this application, reference is made to Figures 7-8 As shown, the energy storage system 100 also includes a pipe support 60, through which the liquid-cooled pipe 501 is mounted on the frame 40.

[0166] exist Figure 7 In the example, pipe support 60 is used to fix the second liquid inlet pipe 5012. Pipe support 60 includes a first support 601, a second support 602, a third support 603, a fourth support 604, and a reinforcing beam 605. The first support 601 is connected to the second liquid inlet pipe 5012, the first support 601 is connected to the second support 602, the second support 602 is connected to the third support 603 via a support adapter 606, the third support 603 is connected to the fourth support 604, and a reinforcing beam 605 is provided between the third support 603 and the fourth support 604 for reinforcement. One end of the reinforcing beam 605 is connected to the third support 603, and the other end of the reinforcing beam 605 is connected to the fourth support 604. The fourth support 604 is installed on the frame 40. Thus, the liquid-cooled pipe 501 is installed on the frame 40 via the pipe support 60.

[0167] The number of reinforcing beams 605 can be one, two, or more, etc. In Figures 7-8 In the example, the number of reinforcing beams 605 is two.

[0168] In a specific embodiment, the first bracket 601 can be fixed to the second liquid inlet pipe 5012 by screwing. Further, the first bracket 601 and the second bracket 602 are connected by screwing. Further, the second bracket 602 is connected to the third bracket 603 by screwing through the bracket adapter 606. Further, the third bracket 603 is connected to the fourth bracket 604 by welding. The third bracket 603 is welded to the reinforcing beam 605, the reinforcing beam 605 is welded to the fourth bracket 604, and the fourth bracket 604 is connected to the frame 40 by screwing.

[0169] In other embodiments, the connection between any two adjacent parts of the first bracket 601, the second bracket 602, the bracket adapter 606, the third bracket 603, the fourth bracket 604, and the reinforcing beam 605 can be by bonding, welding, fastener connection, or other methods, and is not limited here.

[0170] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0171] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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 between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0172] 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 this application. 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. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0173] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An electrical cabinet (10), characterized in that, include: The cabinet (1) has a first chamber (11) and a second chamber (12) inside, and the first chamber (11) and the second chamber (12) are separated by a first partition (13); An electrical module (2) is disposed in the first chamber (11); The first fire-fighting device (3) is installed in the second chamber (12).

2. The electrical cabinet (10) according to claim 1, characterized in that, The first partition (13) is a fireproof partition.

3. The electrical cabinet (10) according to claim 1, characterized in that, The first chamber (11) includes a first sub-chamber (111) and a second sub-chamber (112), and the first sub-chamber (111) and the second sub-chamber (112) are separated by a second partition (14); The electrical module (2) includes a high-voltage module (21) and a low-voltage module (22). The high-voltage module (21) is located in the first sub-chamber (111), and the low-voltage module (22) is located in the second sub-chamber (112).

4. The electrical cabinet (10) according to claim 3, characterized in that, The second partition (14) is a fireproof partition.

5. The electrical cabinet (10) according to claim 3, characterized in that, At least one of the first sub-chamber (111) and the second sub-chamber (112) is adapted to be simultaneously connected to the chamber air inlet (181) and the chamber air outlet (182), which are located on the cabinet (1).

6. The electrical cabinet (10) according to claim 5, characterized in that, The electrical cabinet (10) further includes a ventilation device (4). The ventilation device (4) is provided in at least one of the first sub-chamber (111) and the second sub-chamber (112). The ventilation device (4) includes a fan (44). A temperature detection device is provided in the first sub-chamber (111). The temperature detection device is used to detect the temperature in the first sub-chamber (111). When the temperature value detected by the temperature detection device reaches a first preset threshold, the electrical module (2) controls the fan (44) to rotate.

7. The electrical cabinet (10) according to claim 6, characterized in that, The ventilation device (4) includes: The fan cover (41) has a fan inlet (411) and a fan outlet (412) connected to each other. The fan (44) is installed inside the fan cover (41). The fan cover (41) is installed in the cabinet (1). A filter screen (42) is installed on the hood (41) and / or the cabinet (1). The filter screen (42) is located at the air inlet (411) of the hood and has filter holes. The filter element (43) is located between the filter screen (42) and the corresponding chamber air inlet (181). The filter element (43) is attached to the cabinet (1) and covers the corresponding chamber air inlet (181).

8. The electrical cabinet (10) according to claim 7, characterized in that, The air outlet (412) of the hood is located above the air inlet (411) of the hood. The air outlet (412) of the hood is located on the side of the air inlet (411) of the hood away from the air inlet (181) of the chamber. The hood (41) includes a top plate (413), a bottom plate (414) and a side plate (415). The bottom plate (414) is located below the top plate (413). The top plate (413) and the bottom plate (414) are connected by at least two of the side plates (415). The angle between the bottom plate (414) and the horizontal plane is greater than 0° and less than 90°. The upper end of the bottom plate (414) faces the air outlet (412) of the hood, and the lower end of the bottom plate (414) faces the air inlet (411) of the hood.

9. The electrical cabinet (10) according to claim 3, characterized in that, The high-voltage module (21) includes a mounting plate (217) and a surge arrester (218). The mounting plate (217) is mounted on the cabinet (1), and the surge arrester (218) is mounted on the mounting plate (217).

10. The electrical cabinet (10) according to claim 1, characterized in that, The cabinet (1) includes: Cabinet (15); and The first cabinet door (16) is installed on the cabinet body (15). The first cabinet door (16) is arranged opposite to the first chamber (11). When the first cabinet door (16) is open, the first chamber (11) is exposed. When the first cabinet door (16) is closed, the first chamber (11) is covered by the first cabinet door (16).

11. The electrical cabinet (10) according to claim 1, characterized in that, The cabinet (1) includes: Cabinet (15); and The second cabinet door (17) is installed on the cabinet body (15). The second cabinet door (17) is arranged opposite to the second chamber (12). When the second cabinet door (17) is open, the second chamber (12) is exposed. When the second cabinet door (17) is closed, the second chamber (12) is covered by the second cabinet door (17).

12. The electrical cabinet (10) according to claim 11, characterized in that, The second cabinet door (17) is provided with a maintenance opening, which connects the second chamber (12) to the outside of the cabinet (1). The maintenance opening is provided with a maintenance door (171). When the maintenance door (171) is open, the maintenance opening is exposed. When the maintenance door (171) is closed, the maintenance opening is blocked by the maintenance door (171).

13. The electrical cabinet (10) according to claim 1, characterized in that, The first fire-fighting device (3) includes: Control device (31); A first storage device (32) is connected to the control device (31) and contains fire extinguishing substances.

14. The electrical cabinet (10) according to claim 13, characterized in that, The first fire-fighting device (3) has at least a first outlet for releasing fire-extinguishing material to the outside of the cabinet (1), and the first storage device (32) is connected to the first outlet.

15. The electrical cabinet (10) according to claim 14, characterized in that, The first fire-fighting device (3) further includes: a first pipe (33), one end of which is connected to the first storage device (32), and the other end of which forms the first outlet of the first fire-fighting device (3).

16. The electrical cabinet (10) according to claim 13, characterized in that, The electrical cabinet (10) further includes a second fire-fighting device (5), which is installed in the first chamber (11). The second fire-fighting device (5) includes: The second storage device (51) is connected to the control device (31) and contains fire extinguishing material. The second smoke detection device (52) is connected to the control device (31). The second smoke detection device (52) is used to detect the smoke concentration. When the smoke concentration detected by the second smoke detection device (52) reaches the second preset threshold, the second storage device (51) releases fire extinguishing material into the first chamber (11).

17. The electrical cabinet (10) according to claim 13, characterized in that, The first fire-fighting device (3) includes: a third storage device, which is connected to the control device (31), and stores fire extinguishing material in the third storage device. The third storage device has a second outlet for releasing fire extinguishing material into the first chamber (11). When the smoke concentration in the first chamber (11) reaches a second preset threshold, the third storage device releases fire extinguishing material into the first chamber (11).

18. The electrical cabinet (10) according to any one of claims 13-17, characterized in that, The electrical cabinet (10) also includes an alarm device, which is installed in the cabinet (1) and electrically connected to the control device (31). The alarm device includes one or more combinations of a sound alarm, a light alarm, a sound and light alarm (61), and a fire extinguishing indicator (63).

19. The electrical cabinet (10) according to claim 18, characterized in that, The electrical cabinet (10) also includes: An emergency start / stop button (64) is installed on the cabinet (1) and electrically connected to the control device (31). The emergency start / stop button (64) is used to control the first storage device (32) to start releasing fire extinguishing material or stop releasing fire extinguishing material. A manual alarm button is installed on the cabinet (1) and electrically connected to the control device (31). The manual alarm button can be manually activated to send an alarm signal.

20. An energy storage system (100), characterized in that, include: The electrical cabinet (10) according to any one of claims 1-19, wherein the first fire-fighting device (3) has at least a first outlet for releasing fire-extinguishing material to the outside of the cabinet (1); At least one battery cabinet (20), the battery cabinet (20) includes a cabinet body and a battery disposed in the cabinet body, the battery being electrically connected to the electrical module (2), and the cabinet body being provided with an inlet; A connecting pipe (30) is provided, which connects the inlet of the cabinet body to the first outlet of the first fire-fighting device (3).

21. The energy storage system (100) according to claim 20, characterized in that, The energy storage system (100) also includes a first smoke detection device. At least one of the battery cabinets (20) is equipped with the first smoke detection device. The first smoke detection device is connected to the control device (31) of the first fire-fighting device (3). The first smoke detection device is used to detect the smoke concentration. When the smoke concentration detected by the first smoke detection device reaches a third preset threshold, the first fire-fighting device (3) releases fire extinguishing material to the battery cabinet (20).

22. The energy storage system (100) according to claim 21, characterized in that, There are multiple battery cabinets (20), and the connecting pipes (30) include a main pipe (301) and multiple branch pipes (302). The main pipe (301) is connected to the first outlet of the first fire-fighting device (3). One end of each branch pipe (302) is connected to the main pipe (301), and the other end is connected to the inlet of the corresponding cabinet body.

23. The energy storage system (100) according to claim 21, characterized in that, The energy storage system (100) also includes a frame (40), on which the electrical cabinet (10) and the battery cabinet (20) are both installed.

24. The energy storage system (100) according to claim 23, characterized in that, The energy storage system (100) further includes a third fire-fighting device (50), which includes: A liquid cooling pipe (501) is installed on the frame (40), the liquid cooling pipe (501) is adapted to connect to a liquid supply device, and the liquid cooling pipe (501) is also used to spray liquid onto the electrical cabinet (10) and / or the battery cabinet (20).

25. The energy storage system (100) according to claim 24, characterized in that, The energy storage system (100) also includes a pipe support (60), through which the liquid-cooled pipe (501) is mounted to the frame (40).

Images