Energy storage support, energy storage case, energy storage device and energy storage system

Abstract

The present application is applicable to the technical field of energy storage. Provided are an energy storage support (200), an energy storage case (300), an energy storage device (1000) and an energy storage system. The energy storage support (200) is used in the energy storage device (1000) and is configured to store energy storage modules (100). The energy storage support (200) comprises a frame structure (20) and spray nozzles (30), wherein the frame structure (20) encloses an accommodating space for storing the energy storage modules (100); a circulation channel for conveying a fire extinguishing agent is provided inside the frame structure (20); the frame structure (20) is provided with a fire extinguishing agent inlet and a fire extinguishing agent outlet (21) which are in communication with the circulation channel; and the spray nozzles (30) are arranged at the fire extinguishing agent outlet (21) of the frame structure (20), and are configured to spray the fire extinguishing agent to the accommodating space. The technical solution provided in the embodiments of the present application can improve the reliability of the energy storage device (1000).

Description

Energy storage racks, energy storage enclosures, energy storage devices and energy storage systems

[0001] This application incorporates priority to Chinese Patent Application No. 202411555153.2, filed with the Chinese Patent Office on November 1, 2024, entitled "Energy Storage Bracket, Energy Storage Box, Energy Storage Device and Energy Storage System", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of energy storage, and in particular to an energy storage bracket, an energy storage box, an energy storage device, and an energy storage system. Background Technology

[0003] Energy storage devices are used to store electrical energy and release it when needed. They can effectively balance the supply and demand of energy, ensure the stable operation of the power grid, and promote the effective use of renewable energy.

[0004] Energy storage modules in energy storage devices generate a large amount of heat during charging and discharging. If heat dissipation is inadequate or the device operates under abnormal conditions, thermal runaway may occur, potentially leading to fire or explosion. Therefore, the reliability of energy storage devices needs to be improved.

[0005] Application content

[0006] In view of this, embodiments of this application provide an energy storage bracket, an energy storage box, an energy storage device, and an energy storage system, which can improve the reliability of the energy storage bracket and the energy storage box, energy storage device, or energy storage system using the energy storage bracket.

[0007] An embodiment of the first aspect of this application provides an energy storage bracket for use in an energy storage device, the energy storage device including an energy storage module, and the energy storage bracket including: a frame structure, the frame structure enclosing a receiving space for storing the energy storage module, the interior of the frame structure having a flow channel for conveying extinguishing agent, and the frame structure having an extinguishing agent inlet and an extinguishing agent outlet communicating with the flow channel; and a nozzle, disposed at the extinguishing agent outlet of the frame structure, the nozzle being used to spray extinguishing agent into the receiving space.

[0008] The energy storage bracket provided in the above embodiments forms a flow channel for delivering extinguishing agent within the frame structure, and nozzles are installed on the frame structure. This allows the extinguishing agent to be sprayed quickly and accurately into the containment space through the frame structure and nozzles. This design improves the layout rationality of the fire protection system, thereby enhancing the reliability of the energy storage bracket and the energy storage device using it. Simultaneously, the fire protection system is integrated into the frame structure, enabling the energy storage bracket to serve both fire protection and storage functions. Compared to a separate fire protection system, this design reduces the space occupied by the fire protection system. Therefore, when the energy storage bracket is used in an energy storage device or system, it can provide more storage space for energy storage modules within a limited space, thus contributing to increased energy storage density.

[0009] In some embodiments, the frame structure includes a first frame, a second frame, and a bracket. The second frame and the bracket are mounted on the first frame. The first frame encloses an accommodating space, the second frame forms a flow channel, and the bracket is used to carry the energy storage module.

[0010] In some embodiments, the frame structure includes a plurality of first frames and a plurality of second frames, the plurality of first frames being spaced apart along a first direction, a receiving space being formed between two adjacent first frames, and at least one second frame being installed on each first frame, with a nozzle being provided on the second frame facing the receiving space.

[0011] In some embodiments, the first frame includes a first crossbeam and a first column connected vertically, and the second frame includes a second crossbeam and a second column connected vertically. The second crossbeam and the second column are both hollow structures and are interconnected. The second column is attached to the first column, and the first crossbeam and the second crossbeam are located at opposite ends of the first column in the extension direction.

[0012] In some embodiments, the second frame includes a plurality of second columns, which are spaced apart along the extension direction of the second crossbeam, and the nozzles are disposed on the second columns.

[0013] In some embodiments, the length of the second column is less than the length of the first column.

[0014] In some embodiments, each receiving space is provided with multiple brackets, which are spaced apart along the extension direction of the first column and divide the receiving space into multiple receiving cavities. The second column is provided with multiple nozzles, and each receiving cavity corresponds to at least one nozzle.

[0015] In some embodiments, a plurality of first frames divide a plurality of receiving spaces along a first direction, and two second frames are provided at the junction of two adjacent receiving spaces, and the two second frames are respectively provided with nozzles on opposite sides.

[0016] In some embodiments, the frame structure further includes a conduit extending along a first direction, the conduit being connected to the second crossbeams of a plurality of second frames, the conduit, the second crossbeams and the second columns being interconnected and forming a flow channel together, and the extinguishing agent inlet being disposed on the conduit.

[0017] In some embodiments, the cross-section of the flow channel is circular.

[0018] An embodiment of the second aspect of this application provides an energy storage box for use in an energy storage device. The energy storage box includes a wall and an energy storage support as described in the first aspect. The wall encloses a first receiving compartment, and the energy storage support is disposed within the first receiving compartment.

[0019] The energy storage enclosure provided in the above embodiments integrates the fire protection system into the frame structure of the energy storage bracket, enabling the energy storage bracket to serve both fire protection and support functions. This design improves the rationality of the fire protection system layout and enhances the reliability of the energy storage enclosure and the energy storage device using it. Furthermore, compared to a separate fire protection system, this design reduces the space occupied by the fire protection system and improves space utilization efficiency. As a result, the energy storage enclosure can provide more storage space for the energy storage bracket and energy storage modules, which is beneficial to increasing the energy storage density of the energy storage device.

[0020] In some embodiments, the frame structure is used to support the enclosure wall and together with the enclosure wall, forms an accommodating space.

[0021] In some embodiments, the enclosure includes two first side panels and two second side panels. The two first side panels are arranged opposite each other along the length of the enclosure, and the two second side panels are arranged opposite each other along the width of the energy storage enclosure. The first side panels are provided with a first interface and a second interface. The first interface is used to connect the circulation channel and the fire extinguishing agent supply source, and the second interface is used to connect the first containment chamber and the waste gas recovery equipment.

[0022] In some embodiments, the second interface is positioned at a higher height than the first interface along the height direction of the energy storage enclosure.

[0023] In some embodiments, the energy storage enclosure further includes a partition, which is disposed within an enclosed space enclosed by a wall and divides the enclosed space into a first storage compartment and a second storage compartment, the second storage compartment being used to store electrical equipment.

[0024] In some embodiments, the partition is arranged parallel to the first side plate, and the first interface and the second interface are located on the first side plate away from the second receiving compartment.

[0025] In some embodiments, the energy storage container is a standard shipping container.

[0026] An embodiment of the third aspect of this application provides an energy storage device, including an energy storage module and an energy storage support as described in the first aspect or an energy storage box as described in the second aspect, wherein the energy storage module is disposed within an accommodating space.

[0027] The energy storage device provided in the above embodiments improves its reliability by adopting the energy storage bracket provided in the first aspect embodiments or the energy storage box provided in the second aspect embodiments.

[0028] An embodiment of the fourth aspect of this application provides an energy storage system, including a power conversion device and an energy storage device as described in the second aspect, wherein the power conversion device is used to electrically connect at least one of a power generation device and a power grid, and the energy storage device.

[0029] The energy storage system provided in the above embodiments improves its reliability by employing the energy storage device provided in the third aspect embodiment.

[0030] In some embodiments, the energy storage system further includes an inert gas source connected to a fire extinguishing agent inlet.

[0031] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 is a schematic diagram of the structure of an energy storage device provided in some embodiments of this application;

[0034] Figure 2 is a structural schematic diagram of an energy storage box provided in some embodiments of this application;

[0035] Figure 3 is a schematic diagram of the internal structure of an energy storage device provided in some embodiments of this application;

[0036] Figure 4 is a schematic diagram of the structure of a battery device provided in some embodiments of this application;

[0037] Figure 5 is a perspective view of the internal structure of an energy storage device provided in some embodiments of this application. The energy storage device includes an energy storage support.

[0038] Figure 6 is a schematic diagram of the structure of the energy storage bracket and energy storage module provided in some embodiments of this application;

[0039] Figure 7 is a schematic diagram of the frame structure provided in some embodiments of this application;

[0040] Figure 8 is a partial enlarged view of the structure shown in Figure 7, A;

[0041] Figure 9 is a side view of the frame structure shown in Figure 7;

[0042] Figure 10 is a schematic diagram of an energy storage system provided in some embodiments of this application.

[0043] The markings in the diagram represent: 1000, energy storage device; 2000, power conversion equipment; 3000, power generation device; 100, energy storage module; 200, energy storage support; 300, energy storage container. 10. Battery cluster; 11. Battery unit; 110. Battery housing; 111. First battery housing; 112. Second battery housing; 12. Battery cell; 20. Frame structure; 21. Extinguishing agent outlet; 22. First frame; 221. First crossbeam; 222. First column; 23. Second frame; 231. Second crossbeam; 231a. First part; 231b. Second part; 232. Second column; 24. Bracket; 25. Conductor pipe; 30. Nozzle; 40. Enclosure; 41. Base plate; 42. Top plate; 43. First side plate; 44. Second side plate; 45. First interface; 46. Second interface; 47. First pipe; 48. Second pipe; 51. First containment chamber; 52. Second containment chamber; 60. Partition; 70. Electrical equipment; 80. Insulating support foot; X, First direction; Y, Second direction; Z, Third direction. Embodiments of the present invention

[0044] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0045] 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 application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0046] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0047] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0049] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0050] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this application.

[0051] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0052] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0053] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0054] With the continuous growth of energy demand, energy storage technology has received widespread attention and development. To effectively balance energy supply and demand, improve the smoothness of electricity supply, and enhance the utilization efficiency of renewable energy, energy storage devices are needed. Energy storage devices generally include energy storage racks and energy storage modules mounted on the racks. By charging or discharging the energy storage modules, electrical energy can be stored in the modules or supplied to electrical equipment.

[0055] Energy storage modules generate a large amount of heat during charging and discharging. If heat dissipation is inadequate or the module operates under abnormal conditions, such as overcharging or short circuits, thermal runaway may occur, posing a risk of fire or explosion. Therefore, energy storage devices also require a corresponding fire suppression system to improve their reliability.

[0056] Currently, most mainstream energy storage devices on the market are equipped with independent fire protection systems, which provide fire protection for all energy storage modules. In this design, the fire protection piping is distributed among the energy storage modules, resulting in relatively low reliability of the fire protection system and the fire protection piping occupying a large amount of space.

[0057] Based on the above considerations, this application provides an energy storage bracket for an energy storage device. The frame structure of the energy storage bracket has a flow channel for conveying fire extinguishing agent, and the frame structure is equipped with nozzles. When the energy storage module experiences thermal runaway, the fire extinguishing agent can be directly sprayed into the containing space and the energy storage module using the frame structure and nozzles. In this way, the fire extinguishing agent can quickly and accurately reach the designated area. This design can improve the reliability of the energy storage bracket and the energy storage device using the energy storage bracket. At the same time, this design can reduce the space occupation of the fire protection system. When applied to some energy storage devices or energy storage systems, it is also beneficial to increase the energy storage density.

[0058] The energy storage rack provided in this application embodiment can be applied to energy storage devices and used to store energy storage modules. The energy storage device can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems, etc. The energy storage device can store electrical energy as needed and output electrical energy at appropriate times. For example, the energy storage device can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours. The energy storage device can be, but is not limited to, energy storage containers, energy storage cabinets, etc.

[0059] For ease of explanation, this application uses an energy storage container as an example to illustrate an energy storage device 1000.

[0060] Please refer to Figures 1 to 4 together. Figure 1 is a structural schematic diagram of the energy storage device 1000 provided in some embodiments of this application. Figure 2 is a structural schematic diagram of the energy storage box 300 provided in some embodiments of this application. Figure 3 is a structural schematic diagram of the internal structure of the energy storage device 1000 provided in some embodiments of this application. Figure 4 is a structural schematic diagram of the battery device 11 provided in some embodiments of this application.

[0061] Referring to Figures 1, 2, and 3, the energy storage container includes an energy storage housing 300 and an energy storage module 100. The energy storage housing 300 includes an energy storage support 200, and the energy storage module 100 is mounted on the energy storage support 200. The energy storage module 100 is used to store or provide electrical energy. The energy storage module 100 includes one or more battery clusters 10 to increase the voltage and capacity of the energy storage module 100. The battery clusters 10 may include multiple battery devices 11, which are connected in series via a busbar to increase the voltage of the energy storage module 100. When the energy storage module 100 includes multiple battery clusters 10, the multiple battery clusters 10 are connected in parallel to increase the capacity of the energy storage module 100.

[0062] Referring to Figure 4, the battery device 11 can be a battery pack, which includes a battery housing 110 and one or more battery cells 12, with the battery cells 12 housed within the battery housing 110. When the battery device 11 includes multiple battery cells 12, the multiple battery cells 12 can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that some of the multiple battery cells 12 are connected in series and others in parallel. The multiple battery cells 12 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 12 is housed within the battery housing. Alternatively, the battery device 11 can also consist of multiple battery cells 12 first connected in series, parallel, or in a mixed configuration to form a battery cell assembly, and then the multiple battery cell assemblies are connected in series, parallel, or in a mixed configuration to form a whole, which is then housed within the battery housing 110.

[0063] The battery housing 110 provides a space for housing the individual battery cells 12, and the battery housing 110 can adopt various structures. Referring to Figure 4, in some embodiments, the battery housing 110 may include a first battery housing 111 and a second battery housing 112, which are fastened together to form a closed space inside the battery housing 110 to accommodate the individual battery cells 12. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first battery housing 111 can be a top cover or a bottom plate.

[0064] A battery cell 12 refers to the smallest unit that makes up the battery device 11. Each battery cell 12 can be a rechargeable battery, which is a battery cell 12 that can be recharged after being discharged to activate the active materials and continue to be used. The battery cell 12 can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., but is not limited to these. The battery cell 12 can be cylindrical, flat, cuboid, or other shapes.

[0065] Energy storage containers can also include modules such as thermal management modules, main control modules, central control modules, and power distribution modules.

[0066] As an example, the thermal management module may include a liquid cooling unit that supplies coolant to each battery device 11 via pipelines for regulating the temperature of the individual battery cells 12.

[0067] As an example, the main control module can serve as the battery management unit for battery cluster 10, used to monitor and manage battery cluster 10. The main control module can monitor information such as current, voltage, power, or temperature of battery cluster 10. For example, it can control the charging and discharging current and voltage of battery cluster 10. The main control module includes auxiliary battery management units, integrated switches, and other modules.

[0068] As an example, the central control module can serve as the battery management unit for the energy storage container, used for monitoring and managing the container. The central control module can monitor information such as the container's current, voltage, power, state of charge, or temperature. For instance, it can control the container's charging and discharging current and voltage. As an example, the central control module includes modules such as an insulation monitoring module, a main battery management unit, and Ethernet and fiber optic conversion modules.

[0069] As an example, the power distribution module can be used to distribute power to modules in an energy storage container that require electricity.

[0070] The technical solutions provided by the embodiments of this application will be described below with reference to the accompanying drawings. Please refer to Figures 1 to 4, and further refer to Figures 5 to 9. Figure 5 is a perspective view of the internal structure of the energy storage device 1000 provided in some embodiments of this application. Figure 6 is a structural schematic diagram of the energy storage bracket 200 and the energy storage module 100 provided in some embodiments of this application. Figure 7 is a structural schematic diagram of the frame structure 20 provided in some embodiments of this application. Figure 8 is a partial enlarged view of the structure shown in A in Figure 7. Figure 9 is a side view of the frame structure 20 shown in Figure 7.

[0071] Please refer to Figure 2. Define the length direction of the energy storage box 300 as the first direction X, the width direction of the energy storage box 300 as the second direction Y, and the height direction of the energy storage box 300 as the third direction Z. The length of the energy storage box 300 is not less than the width of the energy storage box 300.

[0072] An embodiment of the first aspect of this application provides an energy storage bracket 200, which is applied in an energy storage device 1000 and can be used to store an energy storage module 100, wherein the energy storage module 100 is used to store or provide electrical energy.

[0073] Please refer to Figures 2, 3, and 5. The energy storage bracket 200 provided in this embodiment includes a frame structure 20 and a nozzle 30. The frame structure 20 encloses a space for storing the energy storage module 100. The interior of the frame structure 20 has a flow channel for conveying extinguishing agent. The frame structure 20 has an extinguishing agent inlet and an extinguishing agent outlet 21 that connect to the flow channel. The nozzle 30 is disposed at the extinguishing agent outlet 21 of the frame structure 20 and is used to spray extinguishing agent into the space.

[0074] The frame structure 20 can enclose an open storage space, providing a storage environment or stable support for the energy storage module 100. The frame structure 20 includes beams, columns, and other components, which are interconnected to form support members with a specific shape and sufficient strength. At least some components of the frame structure 20 are designed as hollow structures, which are sealed and interconnected to form a closed extinguishing agent delivery system, i.e., a flow channel. The frame structure 20 has one or more openings, which connect to the flow channel and serve as either an extinguishing agent inlet or an extinguishing agent outlet 21. The extinguishing agent inlet can connect to an extinguishing agent supply source, and the extinguishing agent outlet 21 can be fitted with a nozzle 30. The frame structure 20 has good corrosion resistance and can be used to deliver various types of extinguishing agents; it also has good fire resistance and flame retardancy, ensuring structural integrity in high-temperature environments or in the event of a fire, thus facilitating the smooth delivery of the extinguishing agent.

[0075] It should be noted that the extinguishing agent supply source can be an independent extinguishing agent storage tank, a fire extinguishing system pipeline network, or a portable fire extinguisher, but is not limited to these. The extinguishing agent can be gaseous, solid, or liquid, and includes, but is not limited to, nitrogen, heptafluoropropane, and ammonium phosphate.

[0076] The nozzle 30 is installed at the extinguishing agent outlet 21 and is used to evenly spray the extinguishing agent transported by the flow channel into the containment space. The nozzle 30 can be a direct spray nozzle or an atomizing nozzle, but is not limited to these.

[0077] The circulation channels and sprinkler heads 30 in the frame structure 20 together constitute the fire protection system of the energy storage bracket 200. It is understood that the energy storage bracket 200 can also be equipped with detectors and other detection devices, including but not limited to temperature detectors, combustible gas detectors, and smoke detectors. When the energy storage module 100 experiences thermal runaway, the detectors detect an increase in the temperature of the energy storage module 100 or detect an open flame or smoke, and can control the fire protection system to activate and spray extinguishing agent into the containment space.

[0078] The energy storage bracket 200 provided in this embodiment forms a flow channel for conveying extinguishing agent inside the frame structure 20, and a nozzle 30 is installed on the frame structure 20. Thus, the extinguishing agent can be quickly and accurately sprayed into the containing space through the frame structure 20 and the nozzle 30. This design improves the layout rationality of the fire protection system, thereby enhancing the reliability of the energy storage bracket 200 and the energy storage device 1000 using the energy storage bracket 200. Simultaneously, the fire protection system is integrated into the frame structure 20, enabling the energy storage bracket 200 to serve both fire protection and storage functions. Compared to a separate fire protection system, this design reduces the space occupied by the fire protection system. Therefore, when the energy storage bracket 200 is used in the energy storage device 1000 or energy storage system, it can provide more storage space for the energy storage module 100 within a limited space, thereby improving energy storage density.

[0079] Please refer to Figures 2, 3 and 6. In some embodiments, the frame structure 20 includes a first frame 22, a second frame 23 and a bracket 24. The second frame 23 and the bracket 24 are mounted on the first frame 22. The first frame 22 encloses an accommodating space, the second frame 23 forms a flow channel, and the bracket 24 is used to carry the energy storage module 100.

[0080] The first frame 22 is a supporting frame. The first frame 22 is a basic component of the frame structure 20, mainly used to define the accommodation space, and its structure and setting method are determined according to the application requirements.

[0081] The second frame 23 is a non-supporting frame. The second frame 23 is a basic component of the fire protection system. By being assembled onto the first frame 22, it surrounds the housing space and the energy storage module 100 installed in the housing space. The structure and installation method of the second frame 23 are determined according to the application requirements. For example, the second frame 23 is assembled onto the first frame 22 by welding, bolting, snap-fitting, etc.

[0082] The bracket 24 directly supports the energy storage module 100, enabling it to be fixed in a designated location. The bracket 24 can be a flat structure, such as a tray, or it can be a frame structure, such as including multiple support rods. The structure and arrangement of the bracket 24 depend on the application requirements. For example, the bracket 24 is assembled onto the first frame 22 by welding, bolting, snap-fitting, or other methods.

[0083] The first frame 22, the second frame 23, and the bracket 24 are made of high-strength, corrosion-resistant, and fire-resistant materials, such as high-strength steel and aluminum alloy, to have high strength or load-bearing capacity and to reliably store the energy storage module 100.

[0084] By adopting the above design, the fire protection function and the support function of the frame structure 20 can be separated, which can improve the structural rationality of the frame structure 20 and facilitate its design, manufacturing and maintenance.

[0085] It is understood that in some other embodiments, the frame structure 20 may also be an integral design, and the specific structure of the frame structure 20 and the way the circulation channels are set are designed according to the actual situation.

[0086] Please refer to Figures 2, 3 and 5. In some embodiments, the frame structure 20 includes a plurality of first frames 22 and a plurality of second frames 23. The plurality of first frames 22 are distributed at intervals along a first direction X, and an accommodating space is formed between two adjacent first frames 22. At least one second frame 23 is installed on each first frame 22, and the second frame 23 is provided with a nozzle 30 facing the accommodating space.

[0087] For example, in some embodiments, the frame structure 20 includes two first frames 22, which are spaced apart along a first direction X and form a receiving space capable of storing one or more battery clusters 10.

[0088] For example, in some embodiments, the frame structure 20 includes at least three first frames 22, which are evenly arranged along a first direction X to form a plurality of accommodating spaces, each accommodating space being capable of storing one or more battery clusters 10.

[0089] With the above design, the frame structure 20 is flexible, and the second frame 23 can penetrate into each housing space and precisely correspond to the energy storage module 100 in each housing space, thereby further improving the reliability of the energy storage bracket 200 and the energy storage device 1000 using the energy storage bracket 200.

[0090] Referring to Figure 6, in some embodiments, the first frame 22 includes a first crossbeam 221 and a first column 222 connected vertically, and the second frame 23 includes a second crossbeam 231 and a second column 232 connected vertically. The interiors of the second crossbeam 231 and the second column 232 are both hollow structures and are interconnected. The second column 232 is attached to the first column 222. The first crossbeam 221 and the second crossbeam 231 are located at opposite ends of the first column 222 in the extending direction.

[0091] For example, the first beam 221 and the second beam 231 extend along the second direction Y, and the first column 222 and the second column 232 extend along the third direction Z. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0092] The first crossbeam 221 and the first column 222 can be hollow pipes or solid plates. When both are hollow pipes, the inside of the pipes can be filled with insulation materials such as foam.

[0093] The second crossbeam 231 and the second column 232 can be hollow pipes with openings to allow for a sealed connection and interconnection. Optionally, the second crossbeam 231 and the second column 232 are fixedly connected by welding. The second column 232 is installed on the first column 222 by welding, bolting, or snap-fitting. Optionally, in one specific embodiment, both the first column 222 and the second column 232 are metal pipes, and the second column 232 is fixed to the first column 222 by welding.

[0094] With the above design, the first frame 22 and the second frame 23 have simple structures, which are easy to design, manufacture and maintain. At the same time, the first frame 22 and the second frame 23 form a stable and reliable connection, and the second column 232 can also reinforce the first column 222, so that the overall strength and stability of the frame structure 20 are higher.

[0095] It is understood that in some embodiments, the first frame 22 and the second frame 23 may also be other structures. For example, the second frame 23 may include multiple hollow tubes, which are sealed together to form a mesh or grid structure.

[0096] Please refer to Figures 5 and 6. In some embodiments, the first frame 22 includes a plurality of first columns 222, which are spaced apart along the extension direction of the first crossbeam 221.

[0097] The spacing between adjacent first columns 222 can be equal or unequal, and the number and location of the first columns 222 depend on the application requirements. Optionally, in a specific embodiment, the first frame 22 includes four first columns 222, which are vertically connected to the first crossbeam 221. Two of the first columns are located at opposite ends of the first crossbeam 221 in the extension direction, and the other two are located in the middle of the first crossbeam 221 in the extension direction and are close to each other.

[0098] By adopting the above design, the strength of the first frame 22 and the stability of the frame structure 20 can be further improved.

[0099] Please refer to Figures 6 and 7. In some embodiments, the second frame 23 includes a plurality of second columns 232, which are spaced apart along the extension direction of the second crossbeam 231. Please refer to Figures 6, 7 and 8. The nozzle 30 is disposed on the second column 232.

[0100] The spacing between adjacent second columns 232 can be equal or unequal, and the number and placement of the second columns 232 depend on the application requirements. Optionally, in a specific embodiment, the second frame 23 includes three second columns 232, which are vertically connected to the second crossbeam 231 and are evenly arranged in the extending direction of the second crossbeam 231.

[0101] The extinguishing agent can reach multiple second columns 232 through the second crossbeam 231, and be sprayed into the containment space by the nozzles 30 of the multiple second columns 232.

[0102] The above design can increase the installation density of sprinkler heads 30 and the coverage of the fire protection system, thereby ensuring the fire extinguishing effect and timeliness. This design is especially suitable for some large-sized energy storage brackets 200.

[0103] It is understood that in some embodiments, the nozzle 30 may also be disposed on the second crossbeam 231.

[0104] In some embodiments, in order to ensure the connection effect between the first frame 22 and the second frame 23, the number of first columns 222 in the first frame 22 is not less than the number of second columns 232 in the second frame 23, so that all the second columns 232 can be fixed on the first columns 222.

[0105] In some embodiments, the opening on the second column 232 for mounting the nozzle 30 is vacuum-formed to improve the guidance of the gaseous extinguishing agent.

[0106] Please refer to Figure 6. In some embodiments, the length of the second column 232 is less than the length of the first column 222.

[0107] The above design helps to reduce the assembly difficulty of the first column 222 and the second column 232, and can reduce the material consumption of the second frame 23, thus saving production costs.

[0108] Please refer to Figures 5 and 7. In some embodiments, the frame structure 20 further includes a conduit 25 extending along the first direction X. The conduit 25 is connected to the second crossbeams 231 of a plurality of second frames 23. The conduit 25, the second crossbeams 231 and the second column 232 are interconnected and together form a flow channel. The extinguishing agent inlet is provided on the conduit 25.

[0109] The conduit 25, the second crossbeam 231, and the second column 232 are sealed together and interconnected, thus forming a flow channel for delivering the extinguishing agent. The conduit 25 is used to introduce the extinguishing agent into the second frame 23, and its shape, size, and location are determined according to application requirements. For example, the conduit 25 is a rectangular tube, with an extinguishing agent inlet at one end. One or more openings are provided on the tube wall, and the conduit 25 is fixedly connected to the second crossbeam 231 by welding. It should be noted that before welding the conduit 25, the second crossbeam 231, and the second column 232, the welding area needs to be thoroughly cleaned to remove oil, rust, and impurities, thereby ensuring that no welding slag or other foreign objects enter the flow channel.

[0110] By adopting the above design, multiple second frames 23 can be connected by the conduit 25, which can improve the design flexibility of the frame structure 20 and reduce the difficulty of connecting the second frame 23 with the fire extinguishing agent supply source.

[0111] Please refer to Figures 7 and 9. In some embodiments, the conduit 25, the second crossbeam 231, and the second column 232 are all straight pipes and are arranged perpendicularly to each other.

[0112] With the above design, the conduit 25, the second crossbeam 231 and the second column 232 form a three-dimensional structure. This vertical cross design can optimize the structure of the flow channel, thereby improving the flow efficiency of the extinguishing agent in the flow channel. At the same time, the three support each other, which also helps to improve the stability of the frame structure 20.

[0113] It is understood that in some embodiments, the conduit 25 can be designed as a bend, and the specific design can be made according to the application requirements.

[0114] Referring to Figure 6, in some embodiments, the second frame 23 includes multiple second columns 232, and a conduit 25 extends along the first direction X and is disposed between two adjacent second columns 232. The conduit 25 divides the second crossbeam 231 into a first part 231a and a second part 231b, and the first part 231a and the second part 231b are respectively connected to different second columns 232.

[0115] The first part 231a and the second part 231b can be directly connected to the second column 232, or they can be connected to the second column 232 through a connecting pipe. Optionally, in a specific embodiment, referring to Figure 7, the first part 231a and the second part 231b of the second crossbeam 231 are both hollow straight pipes. The first part 231a and the second part 231b are staggered in the extension direction of the guide pipe 25. The first part 231a is connected to the corresponding second column 232 through a connecting pipe, and the second part 231b is directly connected to the corresponding second column 232.

[0116] The above design further optimizes the structure of the flow channel, allowing the extinguishing agent in the conduit 25 to flow quickly to multiple second columns 232 through different parts of the second crossbeam 231, thereby helping to improve the flow efficiency of the extinguishing agent. In addition, this design also improves the design flexibility of the frame structure 20, enabling the frame structure 20 to better adapt to the layout of the energy storage module 100 and other electrical equipment.

[0117] It is understood that in some embodiments, the second crossbeam 231 can be an integral structure, with the conduit 25 connected to one end of the second crossbeam 231 in the extending direction. Alternatively, in some embodiments, for some small energy storage brackets 200, the second frame 23 may only include the second column 232, with the conduit 25 directly connected to the second column 232.

[0118] Please refer to Figure 7. In some embodiments, the conduit 25 and / or the second crossbeam 231 and / or the second column 232 are rectangular tubes.

[0119] Optionally, the conduit 25, the second crossbeam 231, and the second column 232 are hollow rectangular tubes.

[0120] With the above design, on the one hand, the square tube has a regular shape, which makes it easy to assemble and fix with other components. On the other hand, in some energy storage boxes 300, the energy storage bracket 200 is also used to support the enclosure 40. The various components of the second frame 23 are designed as square tubes, which makes it easy to arrange them on the enclosure 40.

[0121] In some embodiments, the cross-section of the flow channel is circular.

[0122] For example, the conduit 25, the second crossbeam 231, and the second column 232 are hollow rectangular tubes with circular cross-sections for the internal flow channels.

[0123] With the above design, the inner wall of the flow channel is relatively smooth, which can prevent the extinguishing agent from accumulating and clogging. At the same time, since the inner wall of the flow channel has no bends, it can also reduce the flow resistance of the extinguishing agent, thus facilitating the delivery of the extinguishing agent.

[0124] It is understood that in some other embodiments, the conduit 25, the second crossbeam 231, and the second column 232 may also be hollow circular tubes with a circular cross-section of the internal flow channel, or the conduit 25, the second crossbeam 231, and the second column 232 may be hollow rectangular tubes with a square cross-section of the internal flow channel.

[0125] In some embodiments, the second crossbeam 231 and the second column 232 are made of stainless steel, and the inner surface of the second column 232 has a zinc layer.

[0126] When manufacturing the second column 232, the inner surface of the second column 232 needs to be hot-dip galvanized to form a protective zinc layer on the inner surface of the second column 232.

[0127] As the end point of the fire protection system, the second column 232 is at risk of air intrusion during use. The above design can improve the corrosion resistance of the second column 232, ensuring that the second column 232 can be used for a long time without rusting, thereby extending the service life of the second column 232. This can further improve the reliability of the energy storage bracket 200.

[0128] In some embodiments, the conduit 25 is made of carbon steel to provide high structural strength.

[0129] Please refer to Figures 3 and 5. In some embodiments, multiple brackets 24 are provided in each accommodating space. The multiple brackets 24 are spaced apart along the extension direction of the first column 222 and divide the accommodating space into multiple accommodating cavities. Multiple nozzles 30 are provided on the second column 232 and each accommodating cavity corresponds to at least one nozzle 30.

[0130] In one specific embodiment, each containment space is further configured with two second frames 23, each second frame 23 including three second columns 232, and each second column 232 is provided with a nozzle 30 corresponding to the position of each containment cavity. Thus, each containment cavity corresponds to six nozzles 30. Each containment space contains a battery cluster 10, which includes multiple battery packs, and each containment cavity contains one battery pack. When the energy storage module 100 experiences thermal runaway, the fire suppression system is activated, and multiple nozzles 30 simultaneously spray extinguishing agent onto the corresponding battery packs.

[0131] In the above design, the storage space is divided into multiple storage cavities by the bracket 24, which can realize the layered storage of the energy storage module 100, making it convenient for the energy storage module 100 to be classified, managed and maintained. In addition, each storage cavity corresponds to at least one nozzle 30, which can realize precise fire extinguishing of the energy storage module 100 in each storage cavity and ensure that the fire extinguishing agent can fully cover the energy storage module 100.

[0132] In some embodiments, the bracket 24 is mounted on the first column 222.

[0133] The bracket 24 is installed on the first column 222 by means of welding, bolting, or snap-fitting. Optionally, in one specific embodiment, the bracket 24 and the first column 222 are fixedly connected by bolts.

[0134] By adopting the above design, the position of the bracket 24 can be fixed, the stability of the bracket 24 can be enhanced, and the bracket 24 can reliably support the energy storage module 100.

[0135] It is understandable that in some energy storage devices 1000, the bracket 24 can be designed as a suspended bracket 24 and its position can be fixed by an external structure.

[0136] Please refer to Figures 5, 6 and 7. In some embodiments, multiple first frames 22 are used to divide multiple receiving spaces along a first direction X. Two second frames 23 are provided at the junction of two adjacent receiving spaces, and the two second frames 23 are respectively provided with nozzles 30 on opposite sides.

[0137] Specifically, the second frame 23 has two opposing sides in the first direction X, with one side facing the central region of the containment space where it is located, and the nozzle 30 is disposed on that side to align with the energy storage module 100 stored in the containment space.

[0138] With the above design, each containment space corresponds to an independent second frame 23, which can ensure the supply of extinguishing agent and thus ensure the extinguishing effect.

[0139] In some embodiments, a second frame 23 is provided at the junction of two adjacent receiving spaces, and the second frame 23 is provided with nozzles 30 facing the two adjacent receiving spaces respectively.

[0140] Specifically, the second frame 23 has opposite sides in the first direction X, and nozzles 30 are provided on both sides.

[0141] By adopting the above design, the volume and space occupied by the frame structure 20 can be further reduced by reducing the number of second frames 23, which is conducive to improving the energy storage density of the related energy storage device 1000.

[0142] In one embodiment provided in this application, the energy storage support 200 includes a frame structure 20 and a nozzle 30. The frame structure 20 includes a plurality of first frames 22 arranged along a first direction X, with an accommodating space formed between adjacent first frames 22. Each first frame 22 includes a first crossbeam 221 extending along a second direction Y and a first column 222 extending along a third direction Z, with the first crossbeam 221 and the first column 222 vertically connected. The frame structure 20 also includes a second frame 23 arranged along the first direction X. The second frame 23 includes a second crossbeam 231 extending along the second direction Y and a second column 232 extending along a third direction Z, with the second crossbeam 231 and the second column 232 vertically connected. The second crossbeam 231 is located at the end of the first column 222 away from the first crossbeam 221, and the second column 232 is fixed to the first column 222 by welding. The frame structure 20 also includes a guide pipe 25 extending along the first direction X. The guide pipe 25 connects to the second crossbeams 231 of multiple second frames 23. The guide pipe 25, the second crossbeams 231, and the second columns 232 are all hollow pipes, and the three are interconnected to form a flow channel for conveying extinguishing agent. The guide pipe 25 is provided with an extinguishing agent inlet, and the second column 232 is provided with an extinguishing agent outlet 21. The nozzle 30 is provided at the extinguishing agent outlet 21 on the second column 232. The frame structure 20 also includes multiple brackets 24 disposed in multiple receiving spaces. The brackets 24 are installed on the first column 222 and are used to support the energy storage module 100. The multiple brackets 24 divide the receiving spaces into multiple receiving cavities arranged along the first direction X. When thermal runaway occurs in the energy storage module 100, nitrogen gas is first sprayed into the energy storage module 100 through the conductive pipe 25 and the second frame 23 to suppress fire; then, heptafluoropropane is sprayed into the energy storage module 100 through the conductive pipe 25 and the second frame 23 to extinguish open flames and suppress the spread of fire.

[0143] The energy storage bracket 200 provided in the above embodiments has the following advantages: 1. The fire protection system is integrated into the frame structure 20, which improves the rationality of the fire protection system layout and enhances the reliability of the energy storage bracket 200 and the energy storage device 1000 using the energy storage bracket 200; 2. The energy storage bracket 200 has both fire protection and storage functions. Compared with the scheme of setting up the fire protection system independently, it reduces the space occupation of the fire protection system. When it is applied to the energy storage device 1000 or the energy storage system, it can provide more storage space for the energy storage module 100 in a limited space, thereby helping to improve the energy storage density; 3. The first frame 22 and the second frame 23 are fixedly connected by welding, which is simple in structure. Therefore, it eliminates the need to integrate a large number of components, which helps to reduce the production and manufacturing cost of the energy storage bracket 200; 4. The internal connection between the guide pipe 25, the second crossbeam 231 and the second column 232 is direct, and the second crossbeam 231 and the second column 232 can be freely selected for ventilation and spraying of extinguishing agent according to specific fire protection needs, which facilitates the design of fire protection schemes; 5. The bracket 24 is used to divide the storage space into multiple storage chambers, which can realize the layered storage of the energy storage module 100, which facilitates the classification management and maintenance of the energy storage module 100. At the same time, each storage chamber corresponds to at least one nozzle 30, which can achieve precise fire extinguishing of the energy storage module 100 in each storage chamber, and the extinguishing agent can fully cover the energy storage module 100.

[0144] An embodiment of the second aspect of this application provides an energy storage box 300, which is used in an energy storage device 1000 and can be used to store an energy storage module 100, wherein the energy storage module 100 is used to store or provide electrical energy.

[0145] Please refer to Figures 1, 2 and 3. The energy storage box 300 provided in this embodiment includes a wall 40 and an energy storage support 200 in the first aspect. The wall 40 encloses a first receiving compartment 51, and the energy storage support 200 is disposed in the first receiving compartment 51.

[0146] The enclosure 40 forms the outer perimeter of the energy storage container 300, primarily used to create a closed first receiving compartment 51, providing a storage environment for the energy storage support 200 and the energy storage module 100. Here, "closed" refers to covering or shutting down; it can be sealed or unsealed. The enclosure 40 can adopt various structures. For example, the enclosure 40 includes multiple side panels, a top panel 42, and a bottom panel 41, with multiple panels enclosing to form a polyhedral structure. The enclosure 40 is made of high-strength, corrosion-resistant materials with good fire resistance and flame retardancy, such as high-strength steel and aluminum alloys, to ensure that the enclosure 40 can withstand external impacts, providing reliable physical protection for the energy storage module 100 and the energy storage support 200, and reducing the risk of fire occurrence or spread. Reinforcing ribs, sealing strips, and insulation layers can be installed on the enclosure 40 to enhance its strength, sealing performance, and insulation performance. A door can also be installed on the enclosure 40 to facilitate access to the energy storage module 100, as well as to facilitate inspection, maintenance or replacement of the internal structure or components of the enclosure.

[0147] The energy storage box 300 provided in this application embodiment integrates the fire protection system into the frame structure 20 of the energy storage bracket 200, so that the energy storage bracket 200 has both fire protection and support functions. This design improves the layout rationality of the fire protection system and enhances the reliability of the energy storage box 300 and the energy storage device 1000 using the energy storage box 300. In addition, compared with the scheme of setting up the fire protection system independently, this design reduces the space occupation of the fire protection system and improves the space utilization efficiency. Thus, the energy storage box 300 can provide more storage space for the energy storage bracket 200 and the energy storage module 100, which is conducive to increasing the energy storage density of the energy storage device 1000.

[0148] In some embodiments, the frame structure 20 is used to support the enclosure wall 40 and together with the enclosure wall 40, forms an accommodating space.

[0149] The frame structure 20 can be integrated with the enclosure wall 40 to provide stable support for the enclosure wall 40. Integration of the frame structure 20 with the enclosure wall 40 includes all components of the frame structure 20 being arranged on the inner wall of the enclosure wall 40, or at least some components of the frame structure 20 being connected to or arranged on the inner wall of the enclosure wall 40. The frame structure 20 can be integrated with the enclosure wall 40 by welding, bolting, or other methods, but is not limited to these.

[0150] For example, please refer to Figures 1, 2, and 5. The frame structure 20 includes a first frame 22, a second frame 23, and a guide pipe 25, wherein the first frame 22 is a supporting frame, and the second frame 23 is a non-supporting frame. The first frame 22 includes a first crossbeam 221 and a first column 222. The first crossbeam 221 is fitted onto the top plate 42 of the enclosure 40, and the first column 222 is connected between the top plate 42 and the bottom plate 41 of the enclosure 40 or fitted onto the side plate of the enclosure 40. The second frame 23 includes a second crossbeam 231 and a second column 232. The second crossbeam 231 and the guide pipe 25 can be fitted onto the bottom plate 41 of the enclosure 40. It is understood that the crossbeam or guide pipe 25 fitted onto the enclosure 40 can be designed as a square tube structure to reduce assembly difficulty and enable the frame structure 20 to better support or reinforce the enclosure 40.

[0151] With the above design, on the one hand, the energy storage bracket 200 and the enclosure 40 are compact in structure, with higher space utilization, which facilitates the increase of energy storage density and the layout of other equipment in the energy storage box 300. On the other hand, the energy storage bracket 200 can reinforce the enclosure 40 and improve the structural strength of the energy storage box 300.

[0152] It is understood that in some embodiments, the energy storage support 200 may be independently installed within the first receiving compartment 51 enclosed by the enclosure wall 40.

[0153] Please refer to Figure 2. In some embodiments, the frame structure 20 includes a plurality of first frames 22 and a plurality of second frames 23. The plurality of first frames 22 and the plurality of second frames 23 are arranged along the length direction of the energy storage box 300. The plurality of first frames 22 divide the first receiving compartment 51 into a plurality of receiving spaces.

[0154] Please refer to Figures 1 and 2. In some embodiments, the enclosure 40 includes two first side panels 43 and two second side panels 44. The two first side panels 43 are arranged opposite each other along the length of the enclosure, and the two second side panels 44 are arranged opposite each other along the width of the energy storage enclosure 300. The first side panels 43 are provided with a first interface 45 and a second interface 46. The first interface 45 is used to connect the flow channel and the fire extinguishing agent supply source, and the second interface 46 is used to connect the first receiving chamber 51 and the waste gas recovery equipment.

[0155] The first side panel 43 is located on the long side of the energy storage box 300, and the second side panel 44 is located on the short side of the energy storage box 300. The size of the first side panel 43 is smaller than the size of the second side panel 44. Structures such as doors can be installed on the first side panel 43 and / or the second side panel 44. The enclosure wall 40 also includes a top plate 42 and a bottom plate 41. The first side panel 43, the second side panel 44, the bottom plate 41, and the top plate 42 together form a closed space.

[0156] The first interface 45 can be used as a mounting hole for installing a pipe to connect the extinguishing agent supply source and the flow channel. Alternatively, the first interface 45 can also be used as a through hole, with the outlet of the extinguishing agent supply source and the inlet of the flow channel respectively abutting against the opposite sides of the first interface 45.

[0157] The second interface 46 can be used as a mounting hole for installing an exhaust pipe, or it can also serve as a direct exhaust port. The second interface 46 is used to discharge exhaust gases from the energy storage tank 300, including polluting gases generated by a fire inside the energy storage tank 300 or gaseous extinguishing agents introduced during fire suppression. Understandably, in some cases, the exhaust gases may be less polluting, and the second interface 46 may be directly exposed to the external environment of the energy storage tank 300.

[0158] During storage or transportation, the energy storage box 300 may need to be stacked. In this case, using the large second side plate 44, bottom plate 41 and top plate 42 as support surfaces provides higher stability and reliability. Therefore, it is more reasonable to place the first interface 45 and the second interface 46 on the smaller first side plate 43.

[0159] It is understandable that, depending on different application requirements, the first interface 45 and the second interface 46 can also be set in other locations.

[0160] Please refer to Figure 1. In some embodiments, along the height direction of the energy storage box 300, the second interface 46 is set at a higher height than the first interface 45.

[0161] The first interface 45 is located near the bottom plate 41 of the energy storage box 300, and the second interface 46 is located near the top plate 42 of the energy storage box 300.

[0162] The exhaust gas temperature is relatively high, and it will flow upward inside the energy storage box 300. The first interface 45 and the second interface 46 on the energy storage box 300 adopt a bottom-in and top-out layout, which is more in line with the flow path of the exhaust gas. This design can enable the exhaust gas to be discharged quickly and reduce the risk of exhaust gas accumulating inside the energy storage box 300.

[0163] It is understood that in some embodiments, an exhaust fan may be installed at the second interface 46 in order to facilitate the discharge of exhaust gas or to facilitate gas exchange.

[0164] Please refer to Figures 2 and 5. In some embodiments, the energy storage box 300 further includes a partition 60, which is disposed within the enclosed space formed by the enclosure wall 40 and separates a first storage compartment 51 and a second storage compartment 52 within the enclosed space. The second storage compartment 52 is used to store electrical equipment 70.

[0165] The partition 60 can be a flat plate with a certain thickness and strength, and its shape and size are determined according to application requirements. The partition 60 is made of a material with good fire resistance and flame retardancy, achieving not only spatial isolation but also fireproof isolation. The partition 60 can be fixed to the enclosure 40 or to the energy storage support 200, with fixing methods including but not limited to welding, bolting, and slot installation. Reinforcing ribs and other structures can be provided on the partition 60 to improve its strength and stability.

[0166] Electrical equipment 70 is electrically connected to energy storage module 100, including but not limited to circuit breakers, contactors, transformers, wires and cables, etc. In addition, the second storage compartment 52 can also be used to store distribution boxes, main control boxes, fans, and other components.

[0167] On the one hand, the partition 60 serves as a spatial isolation mechanism, separating the first storage compartment 51 and the second storage compartment 52. This allows for functional zoning of the energy storage box 300, facilitating the storage, management, and maintenance of different types of equipment. On the other hand, the partition 60 also serves as a fireproof barrier. In the event of a fire in the first storage compartment 51, the partition 60 acts as a fire barrier, preventing the fire from spreading to the second storage compartment 52. This reduces the impact of the fire on the equipment in the second storage compartment 52 and improves the reliability of the energy storage box 300.

[0168] Please refer to Figures 1, 2 and 5. In some embodiments, the partition 60 is arranged parallel to the first side plate 43, and the first interface 45 and the second interface 46 are disposed on the first side plate 43 away from the second receiving compartment 52.

[0169] The first storage compartment 51 and the second storage compartment 52 are arranged along the length of the energy storage box 300, and the first interface 45 and the second interface 46 are located on the side closer to the first storage compartment 51 and farther away from the second storage compartment 52.

[0170] By placing the first interface 45 on the side closer to the first receiving chamber 51, the delivery path of the extinguishing agent can be shortened, thereby ensuring that the extinguishing agent can be quickly delivered into the first receiving chamber 51. By placing the second interface 46 on the side farther away from the second receiving chamber 52, the impact of the extinguishing agent and exhaust gas on the equipment in the second receiving chamber 52 can be reduced, thereby reducing the risk of these components being damaged by extinguishing agent erosion, exhaust gas impact, etc.

[0171] Please refer to Figure 1. In some embodiments, the energy storage box 300 further includes a first pipe 47, which is disposed outside the enclosure 40 and is used to connect the first interface 45 to the fire extinguishing agent supply source.

[0172] The first pipe 47 is made of corrosion-resistant and pressure-resistant materials, such as metal pipes or high-strength plastic pipes. The shape and size of the first pipe 47 are determined according to application requirements, such as round pipes or square pipes. The first pipe 47 and the enclosure 40 are fixedly connected by flange connections, welding connections, snap-fit ​​connections, etc.

[0173] With the above design, the extinguishing agent can be efficiently and reliably delivered to the energy storage tank 300 using the first pipe 47.

[0174] It is understood that in some embodiments, for some small enclosures, the extinguishing agent supply source and the energy storage enclosure 300 can be designed to be directly connected, for example, by using a quick connector to directly connect the first interface 45 to the extinguishing agent supply source.

[0175] Please refer to Figure 1. In some embodiments, a bend is provided on the first pipe 47 to increase the creepage distance of the first pipe 47.

[0176] The shape and size of the bend are determined according to design requirements, and can be, for example, S-shaped or U-shaped. Optionally, in one specific embodiment, the first pipe 47 is designed with a U-shaped bend at a position away from the first interface 45.

[0177] Creepage distance refers to the shortest path length along the surface of insulating material between two live conductors, or between a live conductor and a grounded surface. If the creepage distance is too small, electrical breakdown may occur in high-voltage or humid environments, leading to faults such as leakage and short circuits, or even accidents such as fires.

[0178] In the above design, by designing a bend in the first pipe 47, the length of the first pipe 47 can be extended within a limited space, and the creepage distance of the first pipe 47 can be increased, thereby reducing the risk that the first pipe 47 will become a conductive path during electrical faults and improving the reliability of the energy storage box 300.

[0179] It is understood that in some embodiments, an insulating sleeve may be provided outside the first conduit 47 to increase the creepage distance by increasing the insulation thickness of the conduit.

[0180] Referring to Figure 1, in some embodiments, the energy storage box 300 further includes a second pipe 48, which is disposed outside the enclosure 40 and is used to connect the second interface 46 to the waste gas recovery equipment.

[0181] The second pipe 48 is made of corrosion-resistant and high-temperature-resistant materials, such as metal pipes or high-temperature-resistant plastic pipes. The shape and size of the second pipe 48 are determined according to application requirements, such as round pipes or square pipes. The second pipe 48 and the enclosure 40 are fixedly connected by flange connections, welding connections, snap-fit ​​connections, etc.

[0182] By adopting the above design, the waste gas in the first storage chamber 51 is collected and recovered by the second pipe 48, which can prevent the waste gas from polluting the environment around the energy storage box 300. At the same time, the second pipe 48 can block the second interface 46, which can also prevent impurities in the external environment from entering the first storage chamber 51 through the second interface 46.

[0183] It is understood that in some embodiments, an exhaust gas treatment device can be directly installed on the energy storage box 300 to directly treat the exhaust gas discharged from the second interface 46.

[0184] Please refer to Figure 1. In some embodiments, the second pipe 48 is provided with a bend, which is used to increase the creepage distance of the second pipe 48.

[0185] The shape and size of the bend are determined according to design requirements, and can be, for example, S-shaped or U-shaped. Optionally, in one specific embodiment, the second pipe 48 is designed with a U-shaped bend at a position away from the second interface 46.

[0186] In the above design, by designing a bend in the second pipe 48, the length of the second pipe 48 can be extended within a limited space, and the creepage distance of the second pipe 48 can be increased, thereby reducing the risk that the second pipe 48 will become a conductive path during electrical faults and improving the reliability of the energy storage box 300.

[0187] It is understood that in some embodiments, an insulating sleeve may be provided on the outside of the second conduit 48 to increase the creepage distance by increasing the insulation thickness of the conduit.

[0188] Referring to Figure 1, in some embodiments, the energy storage box 300 also includes an insulating support foot 80 disposed at the bottom of the enclosure 40.

[0189] The insulating support foot 80 includes a support part and a connecting part. The support part has a certain height and strength, and can bear the weight of the energy storage box 300 and provide stable support for the energy storage box 300. The connecting part is fixed to the bottom plate 41 of the enclosure 40 by means of adhesive, bolt connection or embedding.

[0190] By adopting the above design, the energy storage box 300 can be insulated from the ground to prevent current from being conducted to the ground in the event of an electrical fault. At the same time, by using the insulated support feet 80 to lift the energy storage box 300, the risk of the bottom of the energy storage box 300 being submerged in water can also be reduced.

[0191] In some embodiments, the energy storage container 300 is a standard shipping container.

[0192] Standard containers have clearly defined length, width, and height specifications. Common standard containers include 20-foot, 30-foot, and 40-foot containers.

[0193] In some cases, the energy storage device 1000 has transportation requirements. Standard containers are more versatile due to their standard size specifications. Designing the energy storage container 300 to a standard size helps reduce transportation costs.

[0194] It is understood that the improvements to the energy storage bracket 200 and energy storage box 300 provided in this application embodiment are not only applicable to standard containers, but also to cabinets of other shapes and sizes.

[0195] In one embodiment provided in this application, the energy storage container 300 is a standard shipping container, and the energy storage container 300 includes a wall 40, a partition 60, and an energy storage support 200. The wall 40 includes a first side plate 43, a second side plate 44, a bottom plate 41, and a top plate 42. The first side plate 43, the second side plate 44, the bottom plate 41, and the top plate 42 together form a closed space. The partition 60 is disposed within the closed space and isolates the closed space into an independent first storage compartment 51 and a second storage compartment 52. The first side plate 43 is provided with a first interface 45 and a second interface 46 that connect the first storage compartment 51. The first interface 45 is disposed near the bottom plate 41 and is used to input fire extinguishing agent, and the second interface 46 is disposed near the top plate 42 and is used to discharge exhaust gas. The energy storage support 200 includes a frame structure 20 and nozzles 30 mounted on the frame structure 20. The frame structure 20 includes a first frame 22, a second frame 23, and a guide pipe 25. The first frame 22 includes a first crossbeam 221 and a first column 222. The first crossbeam 221 is fitted to the inner wall of the top plate 42 and extends along the width direction of the energy storage tank 300. The first column 222 extends along the height direction of the energy storage tank 300, with one end connected to the top plate 42 and the other end connected to the bottom plate 41. The second frame 23 includes a second crossbeam 231 and a second column 232, and the guide pipe 25 and the second crossbeam 231... The conduit 25 is attached to the inner wall of the base plate 41. The conduit 25 extends along the length of the energy storage box 300. The second crossbeam 231 extends along the width of the box. The second column 232 extends along the height of the box and is welded to the first column 222. The conduit 25, the second crossbeam 231 and the second column 232 are all hollow rectangular tubes. The three are welded together and interconnected to form a flow channel for conveying the extinguishing agent. The conduit 25 is provided with an extinguishing agent inlet and is connected to the first interface 45. The second column 232 is provided with an extinguishing agent outlet 21 and a nozzle 30 is provided at the extinguishing agent outlet 21. Multiple first frames 22 within the first receiving compartment 51 are spaced apart along the length of the energy storage box 300, and multiple receiving spaces are divided within the first receiving compartment 51 along the length of the energy storage box 300. Brackets 24 are mounted on first columns 222 and, within each receiving space, multiple receiving cavities are divided along the height of the energy storage box 300. Each receiving space can accommodate a battery cluster 10, and each battery cluster 10 includes multiple battery packs, which are respectively mounted on multiple brackets 24. A nozzle 30 is provided on the first column 222 at the position corresponding to each receiving cavity, and the nozzle 30 can be aimed at the battery packs within the receiving cavity. The second receiving compartment 52 is used to house electrical equipment 70. When thermal runaway occurs in the energy storage module 100 inside the energy storage box 300, nitrogen gas is first sprayed into the energy storage module 100 through the conductive pipe 25 and the second frame 23 to suppress the fire; then, heptafluoropropane is sprayed into the energy storage module 100 through the conductive pipe 25 and the second frame 23 to extinguish the open flame and suppress the spread of the fire.

[0196] The energy storage box 300 provided in the above embodiments has the following advantages: 1. The fire protection system is integrated into the energy storage bracket 200, which improves the rationality of the fire protection system layout and enhances the reliability of the energy storage box 300 and the energy storage device 1000 using the energy storage box 300; 2. The energy storage bracket 200 has both fire protection and storage functions. Compared with the scheme of setting up the fire protection system independently, it reduces the space occupation of the fire protection system and is conducive to increasing the energy storage density; 3. The energy storage bracket 200 supports the enclosure wall 40, which can improve the structural strength of the energy storage box 300; 4. The first frame 22 and the second frame 23 in the energy storage bracket 200 are fixedly connected by welding, which is simple in structure and does not require the integration of a large number of parts, which helps to reduce the production and manufacturing cost of the energy storage box 300; 5. The guide pipe 2 5. The second crossbeam 231 and the second column 232 are internally connected, allowing for flexible selection of the second crossbeam 231 and the second column 232 for ventilation and spraying of extinguishing agents according to specific fire protection needs, facilitating fire protection scheme design; 6. The bracket 24 divides the storage space into multiple storage chambers, enabling layered storage of the energy storage modules 100, facilitating classified management and maintenance of the energy storage modules 100. Each storage chamber corresponds to at least one nozzle 30, enabling precise fire extinguishing of the energy storage modules 100 within each chamber and ensuring complete coverage of the extinguishing agent; 7. The first interface 45 and the second interface 46 adopt a bottom-in, top-out layout, allowing for rapid discharge of exhaust gas from the first storage chamber 51, reducing the risk of exhaust gas accumulation and explosion within the energy storage box 300.

[0197] An embodiment of the third aspect of this application provides an energy storage device 1000, including an energy storage module 100 and an energy storage support 200 as in the first aspect or an energy storage box 300 as in the second aspect, wherein the energy storage module 100 is disposed within an accommodating space.

[0198] Optionally, in one specific embodiment, the energy storage device 1000 is an energy storage container, which includes an energy storage body 300 and an energy storage module 100 disposed in the energy storage body 300.

[0199] The energy storage device 1000 provided in this application improves its reliability by adopting the energy storage bracket 200 provided in the first aspect of the embodiments or the energy storage box 300 provided in the second aspect of the embodiments.

[0200] The present application provides an energy storage system comprising a power conversion device 2000 and an energy storage device 1000 as described in the third aspect, wherein the power conversion device 2000 is used to electrically connect at least one of a power generation device 3000 and a power grid and the energy storage device 1000.

[0201] Please refer to Figure 10, which is a schematic diagram of an energy storage system provided in some embodiments of this application.

[0202] In some embodiments, the energy storage system may include one or more energy storage devices 1000 and a power conversion device 2000. A power generation device 3000 generates electrical energy, which can be stored in the energy storage device 1000 via the power conversion device 2000. For example, the power generation device 3000 may specifically be a solar panel, a hydroelectric power generation device, a thermal power generation device, a wind power generation device, etc.

[0203] The energy storage system provided in this application improves its reliability by employing the energy storage device 1000 provided in the third aspect embodiment.

[0204] In some embodiments, the energy storage system further includes an inert gas source connected to a fire extinguishing agent inlet. Inert gases include, but are not limited to, nitrogen and argon.

[0205] On the one hand, inert gas can extinguish fires and isolate oxygen near the energy storage module 100. Setting up an inert gas source helps improve fire protection reliability. On the other hand, inert gas can also cool the energy storage module 100 under normal operating conditions, assisting in thermal management.

[0206] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An energy storage support frame, used in an energy storage device, the energy storage device including an energy storage module, the energy storage support frame comprising: A frame structure is provided, which encloses a space for storing the energy storage module. The interior of the frame structure has a flow channel for conveying the extinguishing agent, and the frame structure has an extinguishing agent inlet and an extinguishing agent outlet that communicate with the flow channel. A nozzle is provided at the extinguishing agent outlet of the frame structure, and the nozzle is used to spray extinguishing agent into the containment space.

2. The energy storage support as described in claim 1, wherein, The frame structure includes a first frame, a second frame, and a bracket. The second frame and the bracket are mounted on the first frame. The first frame encloses the receiving space, the second frame forms the flow channel, and the bracket is used to support the energy storage module.

3. The energy storage support as described in claim 2, wherein, The frame structure includes a plurality of first frames and a plurality of second frames. The plurality of first frames are distributed at intervals along a first direction, and the receiving space is formed between two adjacent first frames. At least one second frame is installed on each first frame, and the nozzle is provided on the second frame facing the receiving space.

4. The energy storage support as described in claim 3, wherein, The first frame includes a first crossbeam and a first column connected vertically, and the second frame includes a second crossbeam and a second column connected vertically. The interior of the second crossbeam and the second column are both hollow structures and are interconnected. The second column is attached to the first column. The first crossbeam and the second crossbeam are located at opposite ends of the first column in the extension direction.

5. The energy storage support as described in claim 4, wherein, The second frame includes multiple second columns, which are spaced apart along the extension direction of the second crossbeam, and the nozzle is disposed on the second columns.

6. The energy storage support as described in claim 4 or 5, wherein, The length of the second column is less than the length of the first column.

7. The energy storage support as described in claim 4 or 5, wherein, Each of the accommodating spaces is provided with multiple brackets, which are spaced apart along the extension direction of the first column and divide the accommodating space into multiple accommodating cavities. The second column is provided with multiple nozzles, and each accommodating cavity corresponds to at least one nozzle.

8. The energy storage support as described in any one of claims 3-7, wherein, Multiple first frames are used to divide multiple receiving spaces along the first direction. Two second frames are provided at the junction of two adjacent receiving spaces, and the nozzles are provided on opposite sides of the two second frames.

9. The energy storage support as described in any one of claims 4-8, wherein, The frame structure also includes a conduit extending along the first direction. The conduit is connected to the second crossbeams of a plurality of second frames. The conduit, the second crossbeams, and the second columns are interconnected and together form the flow channel. The extinguishing agent inlet is located on the conduit.

10. The energy storage support as described in any one of claims 1-9, wherein, The cross-section of the flow channel is circular.

11. An energy storage box for use in an energy storage device, the energy storage box comprising a wall and an energy storage support as described in any one of claims 1-10, the wall forming a first receiving compartment, the energy storage support being disposed within the first receiving compartment.

12. The energy storage box as described in claim 11, wherein, The frame structure is used to support the enclosure wall and together with the enclosure wall, forms the receiving space.

13. The energy storage box as described in claim 12, wherein, The enclosure includes two first side panels and two second side panels. The two first side panels are arranged opposite each other along the length of the box, and the two second side panels are arranged opposite each other along the width of the energy storage box. The first side panels are provided with a first interface and a second interface. The first interface is used to connect the circulation channel with the fire extinguishing agent supply source, and the second interface is used to connect the first containment chamber with the waste gas recovery equipment.

14. The energy storage container as described in claim 13, wherein, Along the height direction of the energy storage box, the second interface is set at a higher height than the first interface.

15. The energy storage container as described in claim 13 or 14, wherein, The energy storage box also includes a partition, which is disposed within the enclosed space formed by the wall and separates the first storage compartment and the second storage compartment within the enclosed space. The second storage compartment is used to store electrical equipment.

16. The energy storage box as described in claim 15, wherein, The partition is arranged parallel to the first side plate, and the first interface and the second interface are located on the first side plate away from the second accommodating compartment.

17. The energy storage tank as described in any one of claims 11-16, wherein, The energy storage container is a standard shipping container.

18. An energy storage device, comprising an energy storage module and an energy storage support as described in any one of claims 1-10 or an energy storage housing as described in any one of claims 11-17, wherein the energy storage module is disposed within the accommodating space.

19. An energy storage system comprising a power conversion device and an energy storage device as claimed in claim 18, wherein the power conversion device is configured to electrically connect at least one of a power generation device and a power grid and the energy storage device.

20. The energy storage system of claim 19, wherein, The energy storage system also includes an inert gas source, which is connected to the fire extinguishing agent inlet.

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