Energy storage cabinet body, energy storage device, energy storage system and charging network

Abstract

The utility model discloses an energy storage cabinet, an energy storage device, an energy storage system and a charging network, and belongs to the technical field of batteries. The energy storage device comprises an energy storage cabinet body and a plurality of battery devices, the energy storage cabinet comprises a frame, and the frame comprises a first stand column, a plurality of first brackets and a first bottom beam. The first stand column extends in the height direction of the energy storage cabinet body. The plurality of first brackets are connected to the first stand column and are arranged at intervals in the height direction, the plurality of battery devices are arranged in the energy storage cabinet body and are supported by the plurality of first brackets in a one-to-one correspondence manner, and the lowest one of the plurality of first brackets is a first bottom-layer bracket; and the first bottom beam is arranged in the height direction of the energy storage cabinet body, and at least part of the first bottom beam is located below the first bottom layer bracket and supports the first bottom layer bracket. According to the technical scheme, the reliability of the energy storage device can be improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more specifically, to an energy storage cabinet, an energy storage device, an energy storage system, and a charging network. Background Technology

[0002] With the rapid development of technology, electricity has become an indispensable energy source in people's production and daily life. To improve the smoothness of electricity supply and ensure the normal operation of production and daily life, energy storage devices are needed. As devices that cyclically store and release electrical energy, energy storage devices store electrical energy or supply the stored energy to electrical devices through charging or discharging. Energy storage devices are widely used in industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation, and energy storage power stations.

[0003] In the development of energy storage devices, in addition to improving their endurance, enhancing their reliability is also a crucial issue. Therefore, improving the reliability of energy storage devices is a continuous technical challenge in energy storage technology. Utility Model Content

[0004] This application provides an energy storage cabinet, an energy storage device, an energy storage system, and a charging network, which can improve the reliability of the energy storage device.

[0005] In a first aspect, embodiments of this application provide an energy storage device, including an energy storage cabinet and a plurality of battery devices; the energy storage cabinet includes a frame, the frame including a first column, a plurality of first brackets, and a first bottom beam. The first column extends along the height direction of the energy storage cabinet; the plurality of first brackets are connected to the first column and spaced apart along the height direction, the plurality of battery devices are disposed in the energy storage cabinet and supported by the plurality of first brackets one by one, the lowest of the plurality of first brackets being a first bottom bracket; the first bottom beam extends along the height direction of the energy storage cabinet, at least a portion of the first bottom beam is located below the first bottom bracket and supports the first bottom bracket.

[0006] In the above technical solution, at least a portion of the first bottom beam is located below the first bottom bracket and supports the first bottom bracket. Thus, relative to the case where the first bottom bracket and the first bottom beam do not abut against each other in the height direction of the energy storage cabinet, the first bottom beam can provide support force to the first bottom bracket, thereby improving the structural strength of the bottom bracket. This reduces the risk of the first bottom bracket deforming due to the weight of the battery device when supporting the battery device, thereby improving the reliability of the energy storage device with this structure.

[0007] In some embodiments, the first bottom bracket is connected to the first bottom beam by a first fastener.

[0008] In the above technical solution, the first bottom bracket is connected to the first bottom beam via a first fastener. Since the first bottom bracket is located on the first column, it is simultaneously connected to both the first column and the first bottom beam. On the one hand, this allows both the first bottom beam and the first bottom beam to provide support to the first bottom bracket, thereby increasing the structural strength of the first bottom bracket. This reduces the risk of the first bottom bracket deforming due to the weight of the battery device, which could lead to the battery device falling off, and improves the reliability of the energy storage device with this structure. On the other hand, the first column is connected to the first bottom beam not only at its own connection point but also via the first bottom bracket, increasing the stability of the connection between the first column and the first bottom beam, improving the reliability of the energy storage cabinet, and thus improving the reliability of the energy storage device with this structure.

[0009] In some embodiments, the first bottom bracket includes a first vertical portion and a first horizontal portion connected together, the first vertical portion being connected to the first column, and the first horizontal portion being connected to the first bottom beam via the first fastener.

[0010] In the above technical solution, the first vertical part is connected to the first column, and the first horizontal part is connected to the first bottom beam through the first fastener. This allows the first bottom bracket to limit the structure of the first column and the first bottom beam, thereby restricting the relative movement between the first column and the first bottom beam in the thickness direction of the first vertical part and along the thickness direction of the first horizontal part (i.e., the height direction of the energy storage cabinet). This reduces the risk of cracking at the connection between the first column and the first bottom beam that is not connected by the first bottom bracket due to the relative swaying of the first column and the first bottom beam.

[0011] In some embodiments, the first horizontal portion includes a body and a protrusion, the body having a first through hole through which the first fastener passes, and the protrusion protruding from the upper surface of the body for supporting the battery device.

[0012] In the above technical solution, the protrusion protrudes from the upper surface of the body and is used to support the battery device. Compared with the case where the battery device is placed directly on the body, the distance between the battery device supported by the protrusion and the ground is increased by the dimension of the protrusion in the height direction of the energy storage box. This increases the distance between the battery device located on the first bottom bracket and the ground, which facilitates heat dissipation of the battery device and reduces the risk of short circuit of the battery device due to water accumulation on the ground. This increases the reliability of the energy storage device with the energy storage cabinet.

[0013] In some embodiments, the protrusion has a bearing surface for supporting the battery device, the bearing surface being a plane.

[0014] In the above technical solution, the bearing surface is a plane, which makes the battery device and the protrusion make surface contact, thereby increasing the contact area between the battery device and the protrusion. This reduces the pressure at the contact point between the battery device and the protrusion, and reduces the risk of deformation of the battery device surface and the bearing surface of the protrusion due to high pressure, which could lead to unstable bearing. This, in turn, increases the reliability of the energy storage device with the energy storage cabinet.

[0015] In some embodiments, along the height direction of the energy storage cabinet, the height of the protrusion protruding from the upper surface of the body is greater than or equal to the height of the first fastener protruding from the upper surface of the body.

[0016] In the above technical solution, the height of the protrusion protruding from the upper surface of the body is greater than or equal to the height of the first fastener protruding from the upper surface of the body, thereby reducing the risk of the first fastener interfering with the battery device, which in turn facilitates the assembly of the energy storage device with the energy storage cabinet and improves the production efficiency of the energy storage device.

[0017] In some embodiments, along the width direction of the energy storage cabinet, the first fastener is located between the protrusion and the first vertical portion.

[0018] In the above technical solution, along the width direction of the energy storage cabinet, the first fastener is located between the protrusion and the first vertical part, so that the energy storage device can protrude from the protrusion along the width direction of the energy storage cabinet and together with the first fastener occupy part of the internal space of the energy storage cabinet in the width direction, thereby increasing the space in the battery device that can install the energy storage device, and thus increasing the energy density of the energy storage device with the energy storage cabinet.

[0019] In some embodiments, the first vertical portion is connected to the first column by a second fastener.

[0020] In the above technical solution, the first vertical part is connected to the first column by the second fastener, so that the connection between the first vertical part and the first column has high stability, thereby improving the structural stability of the first column and the first vertical part, and thus increasing the reliability of the energy storage device with the energy storage cabinet.

[0021] In some embodiments, the first bottom beam extends along the width direction of the energy storage cabinet and has a first end in the width direction of the energy storage cabinet; along the height direction of the energy storage cabinet, the first end is located below the first bottom bracket and is connected to the first bottom bracket.

[0022] In the above technical solution, by setting the first end below the first bottom bracket and connecting the first end to the first bottom bracket, and then connecting the first end to the first column through the first bottom bracket, the relative movement of the first end and the first column in the thickness direction of the first vertical part and along the thickness direction of the first horizontal part (i.e., the height direction of the energy storage cabinet) is restricted, thereby reducing the risk of cracking at the connection between the first column and the first end that is not connected through the first bottom bracket due to the relative swaying of the first column and the first bottom beam.

[0023] In some embodiments, the frame includes a plurality of first bottom beams, which are spaced apart along the length of the energy storage cabinet, and the first bottom bracket is connected to the plurality of first bottom beams.

[0024] In the above technical solution, multiple first bottom beams are spaced apart along the length of the energy storage cabinet, thereby increasing the structural strength of the frame in its width direction and improving the reliability of the energy storage device. The first bottom bracket is connected to multiple first bottom beams, thereby increasing the area of ​​the first bottom bracket supported by the first bottom beams compared to the case where the first bottom bracket is connected to a single first bottom beam. This further increases the structural strength of the first bottom bracket, thereby further reducing the risk of the first bottom bracket deforming due to the weight of the battery device and causing the battery device to fall off when supporting the battery device. This further improves the reliability of the energy storage device with this structure.

[0025] In some embodiments, the frame further includes a locking beam that extends along the length of the energy storage cabinet, and the lower end of the first column is connected to the locking beam.

[0026] In the above technical solution, the locking beam extends along the length of the energy storage cabinet, and the lower end of the first column is connected to the locking beam. Thus, when there are multiple first columns, it is convenient to integrate multiple first columns into a whole through the locking beam, which facilitates the connection between the first column and the first bottom beam, thereby facilitating the assembly of the energy storage cabinet and improving the production efficiency of the energy storage device.

[0027] In some embodiments, the frame of the locking beam further includes a reinforcing member, which includes a second vertical portion and a second horizontal portion connected together. The second vertical portion is connected to the locking beam along the height direction of the energy storage cabinet, and the second horizontal portion is located between the first bottom bracket and the first bottom beam. The second horizontal portion is provided with a second through hole through which the first fastener passes.

[0028] In the above technical solution, the second vertical part is connected to the locking beam. Along the height direction of the energy storage cabinet, the second horizontal part is located between the first bottom bracket and the first bottom beam. The second horizontal part is provided with a second through hole for the first fastener to pass through, thereby connecting the first bottom beam and the first column through the reinforcing member, increasing the overall integrity of the frame and the structural strength of the frame body. At the same time, since the second horizontal part is located between the first bottom bracket and the first bottom beam, and the second horizontal part is provided with a second through hole for the first fastener to pass through, the first horizontal part is connected to the first bottom beam through the first fastener, and the locking beam is connected to the first bottom beam through the first fastener, thereby simplifying the assembly steps of the energy storage cabinet, facilitating the assembly of the energy storage cabinet, and improving the production efficiency of the energy storage device.

[0029] In some embodiments, the frame further includes a second bottom beam that extends along the length of the energy storage cabinet, and both the locking beam and the first bottom beam are connected to the second bottom beam.

[0030] In the above technical solution, the second bottom beam extends along the length of the energy storage cabinet, and both the locking beam and the first bottom beam are connected to the second bottom beam, thereby increasing the overall integrity of the frame, increasing the structural strength of the frame, and thus improving the reliability of the energy storage device.

[0031] In some embodiments, the frame includes a plurality of first columns, which are spaced apart along the length of the energy storage cabinet, and the first bracket is connected to the plurality of first columns.

[0032] In the above technical solution, multiple first columns are spaced apart along the length of the energy storage cabinet, thereby increasing the structural strength of the frame in its height direction and thus increasing the reliability of the energy storage device. The first bracket is connected to multiple first columns, thereby increasing the area of ​​the first bottom bracket supported by the first columns compared to the case where the first bottom bracket is connected to a single first column, further increasing the structural strength of the first bottom bracket. This further reduces the risk of the first bottom bracket deforming due to the weight of the battery device, which could lead to the battery device falling off, and thus further improves the reliability of the energy storage device with this structure.

[0033] In some embodiments, the frame further includes a second column and a plurality of second brackets; the second column extends along the height direction of the energy storage cabinet; the plurality of second brackets are used to support battery devices, the plurality of second brackets are connected to the second column and are spaced apart along the height direction, the plurality of second brackets are arranged in one-to-one correspondence with the plurality of first brackets, and each second bracket and its corresponding first bracket jointly support one battery device.

[0034] In the above technical solution, each second bracket and its corresponding first bracket jointly support a battery device, thereby enabling the battery device to be supported by both the second bracket and the first bracket simultaneously. This increases the stability of the battery device under stress, reduces the risk of the battery device tipping off the first bracket during assembly and use, and thus increases and improves the reliability of the energy storage device.

[0035] In some embodiments, the lowest of the plurality of second brackets is a second bottom bracket; along the height direction of the energy storage cabinet, at least a portion of the first bottom beam is located below the second bottom bracket and supports the second bottom bracket.

[0036] In the above technical solution, at least a portion of the first bottom beam is located below the second bottom bracket and supports the second bottom bracket. Thus, relative to the case where the second bottom bracket and the first bottom beam do not abut against each other in the height direction of the energy storage cabinet, the first bottom beam can provide support to the second bottom bracket, thereby improving the structural strength of the bottom bracket. This reduces the risk of the second bottom bracket deforming due to the weight of the battery device when supporting the battery device, thereby improving the reliability of the energy storage device with this structure.

[0037] In some embodiments, the frame includes a plurality of second columns, which are spaced apart along the length of the energy storage cabinet, and the second bracket is connected to the plurality of second columns.

[0038] In the above technical solution, multiple second columns are spaced apart along the length of the energy storage cabinet, thereby increasing the structural strength of the frame in its height direction and thus increasing the reliability of the energy storage device. The second bracket is connected to multiple second columns, thereby increasing the area of ​​the second bottom bracket supported by the second columns compared to the case where the second bottom bracket is connected to a single second column, further increasing the structural strength of the second bottom bracket. This further reduces the risk of the second bottom bracket deforming due to the weight of the battery device when supporting the battery device, thus further improving the reliability of the energy storage device with this structure.

[0039] Secondly, embodiments of this application provide an energy storage cabinet, including a frame. The frame includes a first column, a plurality of first brackets, and a first bottom beam. The first column extends along the height direction of the energy storage cabinet. The plurality of first brackets are used to support battery devices. The plurality of first brackets are connected to the first column and are spaced apart along the height direction. The lowest of the plurality of first brackets is a first bottom bracket. Along the height direction of the energy storage cabinet, at least a portion of the first bottom beam is located below the first bottom bracket and supports the first bottom bracket.

[0040] Thirdly, embodiments of this application provide an energy storage system, including a power conversion device and an energy storage device provided in the first aspect embodiment, wherein the power conversion device is used to electrically connect a power generation device and an energy storage device; or, it includes an energy storage cabinet provided in the second aspect embodiment.

[0041] Fourthly, embodiments of this application provide a charging network, including a charging pile and an energy storage device provided in the second aspect embodiment, wherein the charging pile is electrically connected to the energy storage device, and the energy storage device is used to provide power to the charging pile; or, it includes an energy storage cabinet provided in the second aspect embodiment. Attached Figure Description

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 This is a schematic diagram of the structure of a charging network provided in some embodiments of this application;

[0044] Figure 2 This application provides schematic diagrams of the structure of an energy storage system according to some embodiments.

[0045] Figure 3 This is a schematic diagram of the structure of an energy storage device provided in some embodiments of this application;

[0046] Figure 4 This is a schematic diagram of the structure of another energy storage device provided in some embodiments of this application;

[0047] Figure 5 Schematic diagrams of the framework provided for some embodiments of this application;

[0048] Figure 6 for Figure 5 A magnified view of middle A;

[0049] Figure 7 A schematic diagram of the structure of the first bottom bracket 1121 provided in some embodiments of this application;

[0050] Figure 8 Cross-sectional views of the framework provided for some embodiments of this application;

[0051] Figure 9 A structural schematic diagram of a frame (showing a stiffener, a first bottom beam, and a second bottom beam) provided for some embodiments of this application;

[0052] Figure 10A schematic diagram of the structure of an energy storage device (showing a first bottom bracket, a second bottom bracket, and a first bottom beam) provided for some embodiments of this application.

[0053] Icons: 1000 - Charging network; 2000 - Energy storage system; 3000 - Power generation device; 100 - Energy storage device; 10 - Energy storage cabinet; 11 - Frame; 111 - First column; 111A - Fourth fastener; 112 - First bracket; 1121 - First bottom bracket; 1121A - First vertical part; 1121B - First horizontal part; 1121C - Body; 1121D - Protrusion; 1121E - First body; 1121F - Second body; 11211 - First through hole; 11212 - Bearing surface; 1122 - Support Components; 113-First bottom beam; 1131-First end; 113A-Third fastener; 114-First fastener; 115-Second fastener; 116-Locking beam; 117-Reinforcing member; 1171-Second vertical part; 1172-Second horizontal part; 1172A-Second through hole; 118-Second bottom beam; 118A-Fifth fastener; 119-Second bracket; 1191-Second bottom bracket; 110-Second column; 20-Battery device; 30-Energy storage box; X-Width direction; Y-Length direction; Z-Height direction. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application 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 description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0056] In this application, the reference to "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 in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication 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.

[0058] 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, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0059] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0060] In this application, "multiple" means two or more (including two).

[0061] The battery apparatus mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed connections via a busbar.

[0062] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells; as an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form a single module. As an example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0063] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cells housed within the housing.

[0064] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0065] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0066] As an example, the enclosure may include a first enclosure and a second enclosure. The first enclosure and the second enclosure are fastened together to form a closed space inside the enclosure to house the individual battery cells. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first enclosure may be a top cover or a bottom plate.

[0067] As an example, the enclosure may include a top cover, a frame, and a bottom plate. The top cover and bottom plate are connected to the frame, creating an enclosed space inside the enclosure to house the individual battery cells.

[0068] As an example, the housing can be part of the vehicle's chassis structure. For instance, the housing's roof can be at least part of the vehicle's floor, or the housing's frame can be at least part of the vehicle's crossbeams and longitudinal beams.

[0069] The technical solutions described in the embodiments of this application are applicable to various electrical devices that use battery cells and battery devices, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships and spacecraft, etc. For example, spacecraft include airplanes, rockets, space shuttles and spacecraft.

[0070] In some embodiments, the energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0071] In this application, the battery cell may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of this application are not limited thereto. The battery may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited thereto.

[0072] A single battery cell typically includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charging and discharging process of a single battery cell, active ions (such as lithium ions) repeatedly insert and extract between the positive and negative electrodes. The separator, positioned between the positive and negative electrodes, prevents short circuits while allowing active ions to pass through.

[0073] Optionally, the electrode assembly has a wound structure. The positive and negative electrode sheets are wound into a wound structure.

[0074] Optionally, the electrode assembly has a stacked structure.

[0075] Optionally, the electrode assembly can be cylindrical, flat, or polygonal, etc.

[0076] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage power stations can store electrical energy during off-peak hours and provide power to users or electrical equipment during peak hours. Wind power generation systems collect wind energy from wind turbines, convert it into electricity, and then store it in energy storage devices. Solar power generation systems can convert solar energy into electricity, store it in energy storage devices, and supply it to users as needed. Mobile power systems can supply power to electrical equipment in areas inaccessible by the mains grid, such as remote mountainous areas and isolated wilderness areas. Temporary power supply systems can provide power to users when there is insufficient power supply. The energy storage system provided in this application embodiment can be any power system that requires energy storage devices.

[0077] Energy storage devices are typically cabinet-type structures, comprising a storage cabinet and multiple battery units. The cabinet contains battery compartments for housing these units, with racks within each compartment. The battery units are mounted on these racks to allow for the arrangement of multiple units within the compartment. In a typical energy storage device, multiple columns form the frame (skeleton) of the cabinet. Battery unit racks are usually spaced along the height of the storage device on these columns. To enhance the structural strength of the racks, supports are typically installed on the side of the rack furthest from the battery units they support. However, the bottom rack, due to limited space within the cabinet's height, lacks sufficient space between itself and the bottom beam of the frame to accommodate these supports. This forces the bottom rack to rely solely on its own structural strength to support the battery units placed on it, increasing the risk of deformation due to the weight of the battery units.

[0078] Based on the above considerations, in order to reduce the risk of deformation of the bottom bracket due to the gravity of the battery devices, this application provides an energy storage device, including an energy storage cabinet and multiple battery devices; the energy storage cabinet includes a frame, which includes a first column, a first bracket, and a first bottom beam; the first column extends along the height direction of the energy storage cabinet; multiple first brackets are connected to the first column and multiple battery devices are spaced apart along the height direction and disposed in the energy storage cabinet, and are supported by the multiple first brackets one by one, the lowest of the multiple first brackets being the first bottom bracket; the first bottom beam, along the height direction of the energy storage cabinet, at least a portion of the first bottom beam is located below the first bottom bracket and supports the first bottom bracket.

[0079] In this energy storage device structure, at least a portion of the first bottom beam is located below and supports the first bottom bracket. Thus, relative to the case where the first bottom bracket and the first bottom beam do not abut against each other in the height direction of the energy storage cabinet, the first bottom beam can provide support to the first bottom bracket, thereby improving the structural strength of the bottom bracket. This reduces the risk of the first bottom bracket deforming due to the weight of the battery device, which could lead to the battery device falling off, and improves the reliability of the energy storage device with this structure.

[0080] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a charging network 1000 provided in some embodiments of this application. Embodiments of this application provide a charging network 1000, which includes charging piles for charging electrical equipment. The charging network 1000 may also include an energy storage device 100, which is electrically connected to the charging piles and provides electrical energy to the charging piles.

[0081] It should be noted that the charging pile and the battery cells in the energy storage device 100 are electrically connected via cables, and the battery cells can supply the charging pile with their stored electrical energy. The charging pile has a connector that can be connected to electrical equipment, thereby replenishing the equipment's energy. The application of the energy storage device 100 in this charging network 1000 can effectively improve the safety of the charging network 1000 and also help to improve the flexibility of the charging network 1000 during deployment.

[0082] In a charging network 1000, there can be one charging pile, and the energy storage device 100 provides power to one charging pile; there can also be multiple charging piles, and the energy storage device 100 provides power to multiple charging piles.

[0083] The energy storage device 100 may include a container, the container including individual battery cells, which are electrically connected to the charging pile so that the battery device 20 can provide power to the charging pile.

[0084] As an example, such as Figure 1 As shown, the charging network 1000 includes an energy storage device 100 and two charging piles, with the energy storage device 100 providing power to the two charging piles.

[0085] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the structure of an energy storage system 2000 provided in some embodiments of this application. Embodiments of this application provide an energy storage system 2000. The energy storage system 2000 includes a power conversion device, which is electrically connected to a power generation device 3000 to convert the electrical power provided by the power generation device 3000. The energy storage system 2000 may further include an energy storage device 100, which is electrically connected to the power conversion device. The power conversion device converts the electrical energy provided by the power generation device 3000 and then stores it in the energy storage device 100.

[0086] A power conversion device is used to connect the power generation device 3000 and the energy storage device 100. The power generation device 3000 generates electrical energy and stores the generated electrical energy in the energy storage device 100 via the power conversion device. The application of the energy storage device 100 in the energy storage system 2000 can effectively improve the operational safety of the energy storage system 2000. In specific implementations, the power generation equipment can be solar panels, hydroelectric power generation equipment, thermal power generation equipment, etc. This application does not limit the specific type of power generation equipment.

[0087] As an example, such as Figure 2 As shown, the energy storage system 2000 includes an energy storage device 100 and a power conversion device. The two power generation devices 3000 respectively transmit the generated electrical energy to the power conversion device, and the power conversion device introduces the electrical energy into the energy storage device 100 for storage.

[0088] Please refer to Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the structure of the energy storage device 100 provided in some embodiments of this application. Figure 4This is a schematic diagram of the structure of another energy storage device 100 provided in some embodiments of this application. According to some embodiments of this application, an energy storage device 100 is provided, including an energy storage cabinet 10 and a plurality of battery devices 20; the energy storage cabinet 10 includes a frame, including a frame 11, the frame 11 including a first column 111, a first bracket 112 and a first bottom beam 113; the first column 111 extends along the height direction Z of the energy storage cabinet 10; a plurality of first brackets 112 are connected to the first column 111 and a plurality of battery devices 20 are arranged at intervals along the height direction Z in the energy storage cabinet 10 and are supported by the plurality of first brackets 112 in a one-to-one correspondence, the lowest of the plurality of first brackets 112 is the first bottom bracket 1121; the first bottom beam, along the height direction Z of the energy storage cabinet 10, at least a portion of the first bottom beam 113 is located below the first bottom bracket 1121 and supports the first bottom bracket 1121.

[0089] The frame 11 is the skeleton structure of the energy storage cabinet 10. It can be composed of certain columns, top beams and bottom beams. Understandably, the columns, top beams and bottom beams can be directly or indirectly connected together by welding, snap-fitting, screwing or integral molding.

[0090] The first column 111 is a component in the frame 11 that serves as a positioning and support. The first column 111 is provided to facilitate the arrangement of multiple first brackets 112 at Z-intervals along the height direction of the energy storage cabinet 10. The energy storage cabinet 10 may include multiple first columns 111, and the multiple first columns 111 may constitute the main body of one side of the frame 11 of the energy storage box 30.

[0091] The first column 111 can be made of metal materials such as steel or aluminum alloy, so that the first column 111 has high structural strength.

[0092] The first bracket 112 is a component used to support the battery device 20. The battery device 20 can be mounted on the first bracket 112 so that the first bracket 112 can support the battery device 20. The arrangement of the first bracket 112 allows multiple battery devices 20 to be stacked along the direction of gravity inside the energy storage cabinet 10. The first bracket 112 can be made of metal materials such as steel or aluminum alloy to give it high structural strength.

[0093] The first bracket 112 may extend along the length direction Y of the energy storage cabinet 10, or the first bracket 112 may extend along the width direction X of the energy storage cabinet 10.

[0094] The energy storage cabinet 10 can be oriented parallel to the direction of gravity, or at a certain angle to the direction of gravity, so that the weight of the battery device 20 or a larger portion of the weight can be applied to the first bracket 112. This allows the first bracket 112 to support the battery device 20.

[0095] The first bottom bracket 1121 is one of the multiple first brackets 112 located at the lowest end.

[0096] In some embodiments, among the plurality of first brackets 112, the non-first bottom bracket 1121 is provided with a support member 1122 on the side of the energy storage cabinet 10 away from the battery device 20 it supports in the height direction Z. The support member 1122 abuts against the first bracket 112 on the side of the energy storage cabinet 10 away from the battery device 20 it supports in the height direction Z to improve the structural strength of the first bracket 112 and improve the reliability of the energy storage cabinet 10.

[0097] The first bottom beam 113 is one of the bottom beams of the frame 11. In some embodiments, the material of the first bottom beam 113 can be metal materials such as steel and aluminum alloy, so that the first bottom beam 113 has high structural strength.

[0098] For example, the extension direction of the first bottom beam 113 may be perpendicular or parallel to the extension direction of the first bracket 112.

[0099] In some embodiments, the first bottom beam 113 may extend along the length direction Y of the energy storage cabinet 10, and the first bracket 112 may extend along the width direction X of the energy storage cabinet 10, or the first bracket 112 may extend along the length direction Y of the energy storage cabinet 10.

[0100] In some embodiments, the first bottom crossbeam may extend along the width direction X of the energy storage cabinet 10, and the first bracket 112 may extend along the length direction Y of the energy storage cabinet 10, or the first bracket 112 may extend along the width direction X of the energy storage cabinet 10.

[0101] In some embodiments, reference Figure 3 The energy storage device 100 also includes an energy storage box 30, which provides assembly space for the energy storage cabinet 10. The energy storage box 30 can adopt various structures.

[0102] The energy storage box 30 can be a cuboid structure, wherein the width direction X of the energy storage cabinet 10 is parallel to the length direction Y of the energy storage box 30, so that the energy storage cabinet 10 can be spaced apart in the energy storage box 30 along its width direction X.

[0103] For example, the energy storage container 30 is used in devices such as prefabricated energy storage compartments and energy storage containers. The energy storage container 30 can be made of materials such as steel and aluminum.

[0104] In this embodiment, at least a portion of the first bottom beam 113 is located below the first bottom bracket 1121 and supports the first bottom bracket 1121. Thus, relative to the case where the first bottom bracket 1121 and the first bottom beam 113 do not abut in the height direction Z of the energy storage cabinet 10, the first bottom beam can provide support force to the first bottom bracket 1121, thereby improving the structural strength of the bottom bracket. This reduces the risk of the first bottom bracket 1121 deforming due to the weight of the battery device 20 when supporting the battery device 20, thereby reducing the risk of the battery device 20 falling off. This improves the reliability of the energy storage device 100 of the energy storage cabinet 10 with this structure.

[0105] Please refer to Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the structure of the frame 11 provided in some embodiments of this application. Figure 6 for Figure 5 Enlarged view of A in the diagram. According to some embodiments of this application, the first bottom bracket 1121 is connected to the first bottom beam 113 by a first fastener 114.

[0106] The first fastener 114 can be a fastening part such as a rivet, screw, bolt, or nut.

[0107] The first fastener 114 connects the first bottom bracket 1121 and the first bottom beam 113 to strengthen the structural strength of the first bottom bracket 1121. It also increases the connection method between the first bottom beam 113 and the first column 111, thereby increasing the structural strength of the frame 11 at the connection between the first bottom beam 113 and the first column 111 and reducing the risk of deformation and cracking of the frame 11.

[0108] In some embodiments, a portion of the first fastener 114 is disposed on the side of the first horizontal portion 1121B facing the battery device 20 to facilitate the assembly of the first fastener 114.

[0109] In some embodiments, a portion of the first fastener 114 is disposed on the side of the first bottom beam 113 opposite to the battery device 20 to reduce the risk of interference between the first fastener 114 and the battery device 20.

[0110] In some embodiments, the first bottom bracket 1121 can also be connected to the first bottom beam 113 by welding, snap-fitting, or other means.

[0111] In this embodiment, the first bottom bracket 1121 is connected to the first bottom beam 113 via the first fastener 114. Since the first bottom bracket 1121 is mounted on the first column 111, it is simultaneously connected to both the first column 111 and the first bottom beam 113. This allows both the first bottom beam 113 and the first bottom support beam 113 to provide support to the first bottom bracket 1121, thereby increasing the structural strength of the first bottom bracket 1121. This reduces the impact of the battery device 20's weight on the first bottom bracket when supporting the battery device 20. The deformation of the bottom bracket 1121 reduces the risk of the battery device 20 falling off, thus improving the reliability of the energy storage device 100 of the energy storage cabinet 10 with this structure. On the other hand, the first column 111 is connected to the first bottom beam 113 through the first bottom bracket 1121, in addition to the connection between the first column 111 and the first bottom beam 113, thereby increasing the stability of the connection between the first column 111 and the first bottom beam 113, improving the reliability of the energy storage cabinet 10, and thus improving the reliability of the energy storage device 100 of the energy storage cabinet 10 with this structure.

[0112] Please refer to Figure 6 and Figure 7 , Figure 7 This is a schematic diagram of the structure of a first bottom bracket 1121 provided in some embodiments of this application. According to some embodiments of this application, the first bottom bracket 1121 includes a first vertical part 1121A and a first horizontal part 1121B connected together. The first vertical part 1121A is connected to a first column 111, and the first horizontal part 1121B is connected to a first bottom beam 113 by a first fastener 114.

[0113] The first vertical part 1121A is the part of the first bottom bracket 1121 that extends along the height direction Z of the energy storage cabinet 10.

[0114] The first horizontal section 1121B is the part of the first bottom bracket 1121 that extends along the length direction Y or the width direction X of the energy storage cabinet 10.

[0115] The first vertical part 1121A and the first horizontal part 1121B can be connected to each other by welding, snap-fitting, screwing, or integral molding.

[0116] In some embodiments, the first vertical part 1121A is connected to the first column 111 on the side of the energy storage cabinet 10 facing the battery device 20 in the length direction Y or the width direction X, and the first horizontal part 1121B is connected to the first bottom beam 113 on the side of the energy storage cabinet 10 facing the battery device 20 in the height direction Z.

[0117] In some embodiments, the first bottom bracket 1121 extends along the length Y direction of the energy storage cabinet 10. When the size of the first bottom bracket 1121 in the length Y direction of the energy storage cabinet 10 is constant, the larger the size of the first vertical part 1121A in the height Z direction of the energy storage cabinet 10, the larger the area of ​​the first vertical part 1121A connected to the first column 111 and / or abutting, the better the restriction effect on the relative movement of the first column 111 relative to the first bottom beam 113 in the width X direction of the energy storage cabinet 10; the larger the size of the first horizontal part 1121B in the width X direction of the energy storage cabinet 10, the larger the area of ​​the first horizontal part 1121B connected to the first bottom beam 113 and / or abutting, the better the restriction effect on the relative movement of the first bottom beam 113 relative to the first column 111 in the height Z direction of the energy storage cabinet 10.

[0118] In some embodiments, the first bottom bracket 1121 extends along the width direction X of the energy storage cabinet 10. When the size of the first bottom bracket 1121 in the width direction X of the energy storage cabinet 10 is fixed, the larger the size of the first vertical part 1121A in the height direction Z of the energy storage cabinet 10, the larger the area of ​​the first vertical part 1121A connected to the first column 111 and / or abutting, the better the restriction effect on the relative movement of the first column 111 relative to the first bottom beam 113 in the length direction Y of the energy storage cabinet 10; the larger the size of the first horizontal part 1121B in the length direction Y of the energy storage cabinet 10, the larger the area of ​​the first horizontal part 1121B connected to the first bottom beam 113 and / or abutting, the better the restriction effect on the relative movement of the first bottom beam 113 relative to the first column 111 in the height direction Z of the energy storage cabinet 10.

[0119] In this embodiment, the first vertical part 1121A is connected to the first column 111, and the first horizontal part 1121B is connected to the first bottom beam 113 through the first fastener 114. This allows the first bottom bracket 1121 to structurally limit the first column 111 and the first bottom beam 113, thereby restricting the relative movement between the first column 111 and the first bottom beam 113 in the thickness direction of the first vertical part 1121A and along the thickness direction of the first horizontal part 1121B (i.e., the height direction Z of the energy storage cabinet 10). This reduces the risk of cracking at the connection between the first column 111 and the first bottom beam 113 that is not connected by the first bottom bracket 1121 due to the relative swaying of the first column 111 and the first bottom beam 113.

[0120] Please refer to Figure 6 and Figure 7According to some embodiments of this application, the first horizontal portion 1121B includes a body 1121C and a protrusion 1121D. The body 1121C is provided with a first through hole 11211 through which the first fastener 114 passes. The protrusion 1121D protrudes from the upper surface of the body 1121C and is used to support the battery device 20.

[0121] The main body 1121C is the main body region of the first horizontal part 1121B.

[0122] The protrusion 1121D is a portion that protrudes from the body 1121C along the height direction Z of the energy storage cabinet 10. For example, the protrusion 1121D can be formed by bending the first horizontal portion 1121B, or it can be connected to the body 1121C by welding, snap-fitting, or screwing, and protrudes from the side of the body 1121C facing the battery device 20.

[0123] In this embodiment, the protrusion 1121D protrudes from the upper surface of the body 1121C. The protrusion 1121D is used to support the battery device 20. Compared with the case where the battery device 20 is placed directly on the body 1121C, the distance between the battery device 20 supported by the protrusion 1121D and the ground is increased by the dimension of the protrusion 1121D in the height direction Z of the energy storage box 30. This increases the distance between the battery device 20 located on the first bottom bracket 1121 and the ground, thereby facilitating heat dissipation of the battery device 20 and reducing the risk of short circuit of the battery device 20 due to water accumulation on the ground. This increases the reliability of the energy storage device 100 with the energy storage cabinet 10.

[0124] Please refer to Figure 7 According to some embodiments of this application, the protrusion 1121D has a bearing surface 11212 for bearing the battery device 20, and the bearing surface 11212 is a plane.

[0125] The bearing surface 11212 is the surface of the protrusion 1121D on the side facing the battery device 20 in the height direction Z of the energy storage cabinet 10.

[0126] The fact that the bearing surface 11212 is a plane can be understood as the plane that is in contact with the side of the battery device 20 facing the first bottom bracket 1121.

[0127] In this embodiment, the bearing surface 11212 is a plane, which makes the battery device 20 and the protrusion 1121D in surface contact, thereby increasing the contact area between the battery device 20 and the protrusion 1121D. This reduces the pressure at the contact point between the battery device 20 and the protrusion 1121D, and reduces the risk of deformation of the surface of the battery device 20 and the bearing surface 11212 of the protrusion 1121D due to high pressure, leading to unstable bearing. This increases the reliability of the energy storage device 100 with the energy storage cabinet 10.

[0128] Please refer to Figure 6 According to some embodiments of this application, along the height direction Z of the energy storage cabinet 10, the height of the protrusion 1121D protruding from the upper surface of the body 1121C is greater than or equal to the height of the first fastener 114 protruding from the upper surface of the body 1121C.

[0129] In this embodiment, the height of the protrusion 1121D protruding from the upper surface of the body 1121C is greater than or equal to the height of the first fastener 114 protruding from the upper surface of the body 1121C, thereby reducing the risk of the first fastener 114 interfering with the battery device 20, which in turn facilitates the assembly of the energy storage device 100 with the energy storage cabinet 10 and improves the production efficiency of the energy storage device 100.

[0130] Please refer to Figure 6 According to some embodiments of this application, along the width direction X of the energy storage cabinet 10, the first fastener 114 is located between the protrusion 1121D and the first vertical portion 1121A.

[0131] In some embodiments, the body 1121C includes a first body 1121E and a second body 1121F. Along the width direction X or the length direction Y of the energy storage cabinet 10, the first vertical portion 1121A, the first body 1121E, the protrusion 1121D, and the second body 1121F are connected in sequence. A first through hole 11211 is provided in the first body 1121E. By providing the first body 1121E and the second body 1121F on opposite sides of the protrusion 1121D, the contact area between the first horizontal portion 1121B and the first bottom beam 113 is increased, thereby reducing the risk that the first horizontal portion 1121B will be crushed by the battery device 20 and the first bottom beam 113 due to the pressure of the battery device 20.

[0132] In this embodiment, along the width direction X of the energy storage cabinet 10, the first fastener 114 is located between the protrusion 1121D and the first vertical part 1121A, so that the energy storage device 100 can protrude from the protrusion 1121D along the width direction X of the energy storage cabinet 10, and together with the first fastener 114, occupy part of the internal space of the energy storage cabinet 10 in its width direction X, thereby increasing the space in the battery device 20 where the energy storage device 100 can be installed, and thus increasing the energy density of the energy storage device 100 with the energy storage cabinet 10.

[0133] Please refer to Figure 6 According to some embodiments of this application, the first vertical part 1121A is connected to the first column 111 by a second fastener 115.

[0134] The second fastener 115 can be a fastening part such as a rivet, screw, bolt, and nut.

[0135] The second fastener 115 connects the first vertical part 1121A and the first column 111 to strengthen the structural strength of the first vertical part 1121A.

[0136] In some embodiments, a portion of the second fastener 115 is disposed on the side of the first vertical portion 1121A facing the battery device 20 to facilitate the assembly of the second fastener 115.

[0137] In some embodiments, a portion of the second fastener 115 is disposed on the side of the first post 111 away from the battery device 20 to reduce the risk of interference between the second fastener 115 and the battery device 20.

[0138] In this embodiment, the first vertical part 1121A is connected to the first column 111 by the second fastener 115, so that the connection between the first vertical part 1121A and the first column 111 has high stability, thereby improving the structural stability of the first column 111 and the first vertical part 1121A, and thus increasing the reliability of the energy storage device 100 with the energy storage cabinet 10.

[0139] Please refer to Figure 5 and Figure 6 According to some embodiments of this application, the first bottom beam 113 extends along the width direction X of the energy storage cabinet 10, and the first bottom beam 113 has a first end 1131 in the width direction X of the energy storage cabinet 10; along the height direction Z of the energy storage cabinet 10, the first end 1131 is located below the first bottom bracket 1121 and is connected to the first bottom bracket 1121.

[0140] The first end 1131 is one end of the first bottom crossbeam in the width direction X of the energy storage cabinet 10, and the first end 1131 is closer to the first column 111 than the other end.

[0141] In this embodiment, by placing the first end below the first bottom bracket 1121 and connecting the first end to the first bottom bracket 1121, and then connecting the first end to the first column 111 through the first bottom bracket 1121, the relative movement of the first end and the first column 111 in the thickness direction of the first vertical part 1121A and along the thickness direction of the first horizontal part 1121B (i.e., the height direction Z of the energy storage cabinet 10) is restricted. This reduces the risk of cracking at the connection between the first column 111 and the first end not connected through the first bottom bracket 1121 due to the relative swaying of the first column 111 and the first bottom beam 113.

[0142] Please refer to Figure 5According to some embodiments of this application, the frame 11 includes a plurality of first bottom beams 113, which are spaced apart along the length Y direction of the energy storage cabinet 10, and the first bottom bracket 1121 is connected to the plurality of first bottom beams 113.

[0143] In this embodiment, multiple first bottom beams 113 are spaced apart along the length Y direction of the energy storage cabinet 10, thereby increasing the structural strength of the frame 11 in its width X direction and improving the reliability of the energy storage device 100. The first bottom bracket 1121 is connected to multiple first bottom beams 113, thereby increasing the area of ​​the first bottom bracket 1121 supported by the first bottom beams 113 compared to the case where the first bottom bracket 1121 is connected to a single first bottom beam 113, further increasing the structural strength of the first bottom bracket 1121. This further reduces the risk of the first bottom bracket 1121 deforming due to the weight of the battery device 20, which could lead to the battery device 20 falling off, and thus further improves the reliability of the energy storage device 100 with this structure.

[0144] Please refer to Figure 6 Please refer to Figure 8 and Figure 9 , Figure 8 A cross-sectional view of frame 11 provided for some embodiments of this application. Figure 9 The diagram shows a structural schematic of a frame 11 (showing a reinforcing member 117, a first bottom beam 113, and a second bottom beam 118) provided for some embodiments of this application. According to some embodiments of this application, the frame 11 also includes a locking beam 116, which extends along the length direction Y of the energy storage cabinet 10, and the lower end of the first column 111 is connected to the locking beam 116.

[0145] The locking beam 116 is a structural component in the frame 11 used to connect the first column 111.

[0146] For example, the locking beam 116 can be connected to the first column 111 by welding, snap-fitting, or other means.

[0147] In some embodiments, the locking beam 116 may be made of metal materials such as steel or aluminum alloy, so that the locking beam 116 has high structural strength.

[0148] In some embodiments, the first column 111 is connected to the locking beam 116 via a fourth fastener 111A at one end near the locking beam 116. The locking beam 116 has a plurality of first mounting holes corresponding to the fourth fastener 111A on the side facing the first column 111. These first mounting holes are spaced apart along the length Y direction of the energy storage cabinet 10 to facilitate connection with the first column 111 at different positions along the length Y direction of the energy storage cabinet 10. The fourth fastener 111A can be a fastening component such as a rivet, screw, bolt, or nut.

[0149] In this embodiment, the locking beam 116 extends along the length direction Y of the energy storage cabinet 10, and the lower end of the first column 111 is connected to the locking beam 116. Thus, when there are multiple first columns 111, it is convenient to integrate multiple first columns 111 into a whole through the locking beam 116, thereby facilitating the connection between the first column 111 and the first bottom beam 113, which in turn facilitates the assembly of the energy storage cabinet 10 and improves the production efficiency of the energy storage device 100.

[0150] Please refer to Figure 8 and Figure 9 According to some embodiments of this application, the locking beam 116 frame 11 further includes a reinforcing member 117. The reinforcing member 117 includes a connected second vertical portion 1171 and a second horizontal portion 1172. The second vertical portion 1171 is connected to the locking beam 116 along the height direction Z of the energy storage cabinet 10. The second horizontal portion 1172 is located between the first bottom bracket 1121 and the first bottom beam 113. The second horizontal portion 1172 is provided with a second through hole 1172A for the first fastener 114 to pass through.

[0151] The reinforcing member 117 is a structural member used to connect the first bottom beam 113 and the locking beam 116 to connect the first bottom beam 113 and the first column 111.

[0152] The second vertical part 1171 is the part of the reinforcing member 117 that extends along the height direction Z of the energy storage cabinet 10.

[0153] The second horizontal section 1172 is the part of the reinforcing member 117 that extends along the width direction X of the energy storage cabinet 10.

[0154] The second vertical part 1171 and the second horizontal part 1172 can be connected to each other by welding, snap-fitting, screwing, or integral molding.

[0155] The second vertical part 1171 can be connected to the locking beam 116 by welding, snap-fitting, riveting, or other methods.

[0156] In some embodiments, along the width direction X of the energy storage cabinet 10, a second vertical portion 1171 is located between the locking beam 116 and the first end portion 1131. The second vertical portion 1171 is connected to the locking beam 116 via a third fastener 113A. A portion of the third fastener 113A is located on the side of the second vertical portion 1171 facing the first bottom beam 113, so that the reinforcement 117 is connected to the locking beam 116. The first end portion 1131 is fitted over the third fastener 113A. The third fastener 113A can be a fastening part such as a rivet, screw, bolt, or nut.

[0157] In some embodiments, along the height direction Z of the energy storage cabinet 10, there is a gap between the first body 1121E and the first bottom beam 113, and the second horizontal part 1172 is located between the first body 1121E and the first bottom beam 113.

[0158] In this embodiment, the second vertical portion 1171 is connected to the locking beam 116 along the height direction Z of the energy storage cabinet 10. The second horizontal portion 1172 is located between the first bottom bracket 1121 and the first bottom beam 113. The second horizontal portion 1172 is provided with a second through hole 1172A for the first fastener 114 to pass through, thereby connecting the first bottom beam 113 to the first column 111 through the reinforcing member 117, increasing the overall integrity of the frame 11 and the structural strength of the frame 11 body 1121C; at the same time, due to the second horizontal portion 117... Located between the first bottom bracket 1121 and the first bottom beam 113, the second horizontal part 1172 is provided with a second through hole 1172A for the first fastener 114 to pass through. Thus, while the body 1121C of the first horizontal part 1121B is connected to the first bottom beam 113 by the first fastener 114, the locking beam 116 is also connected to the first bottom beam 113 by the first fastener 114. This simplifies the assembly steps of the energy storage cabinet 10, facilitates the assembly of the energy storage cabinet 10, and improves the production efficiency of the energy storage device 100.

[0159] Please refer to Figure 8 and Figure 9 According to some embodiments of this application, the frame 11 also includes a second bottom beam 118, which extends along the length direction Y of the energy storage cabinet 10, and the locking beam 116 and the first bottom beam 113 are both connected to the second bottom beam 118.

[0160] The second bottom beam 118 is another type of bottom beam in the frame 11. In some embodiments, the material of the second bottom beam 118 can be metal materials such as steel and aluminum alloy, so that the first bottom beam 113 has high structural strength.

[0161] The first bottom beam 113 and the second bottom beam 118 are perpendicular to each other. In some embodiments, the first bottom beam 113 extends along the width direction X of the energy storage cabinet 10, and the second bottom beam 118 extends along the length direction Y of the energy storage cabinet 10.

[0162] In other embodiments, the first bottom beam 113 extends along the length direction Y of the energy storage cabinet 10, and the second bottom beam 118 extends along the width direction X of the energy storage cabinet 10.

[0163] In some embodiments, along the width direction X of the energy storage cabinet 10, the second bottom beam 118 is connected to the locking beam 116 via a fifth fastener 118A. A portion of the fifth fastener 118A is located on the side of the second bottom beam 118 facing away from the locking beam 116, so that the second bottom beam 118 is connected to the locking beam 116. The fifth fastener 118A can be a fastening part such as a rivet, screw, bolt, or nut.

[0164] The first bottom beam 113 can be connected to the second bottom beam 118 by means of welding, snap-fitting, or riveting.

[0165] In this embodiment, the second bottom beam 118 extends along the length direction Y of the energy storage cabinet 10. The locking beam 116 and the first bottom beam 113 are both connected to the second bottom beam 118, thereby increasing the integrity of the frame 11, increasing the structural strength of the frame 11, and thus improving the reliability of the energy storage device 100.

[0166] Please refer to Figure 5 According to some embodiments of this application, the frame 11 includes a plurality of first columns 111, which are spaced apart along the length Y direction of the energy storage cabinet 10, and the first bracket 112 is connected to the plurality of first columns 111.

[0167] In this embodiment, multiple first columns 111 are spaced apart along the length Y direction of the energy storage cabinet 10, thereby increasing the structural strength of the frame 11 in its height Z direction and thus increasing the reliability of the energy storage device 100. The first bracket 112 is connected to multiple first columns 111, thereby increasing the area of ​​the first bottom bracket 1121 supported by the first columns 111 compared to the case where the first bottom bracket 1121 is connected to a single first column 111, further increasing the structural strength of the first bottom bracket 1121. This further reduces the risk of the first bottom bracket 1121 deforming due to the weight of the battery device 20 and thus causing the battery device 20 to fall off when supporting the battery device 20, thereby further improving the reliability of the energy storage device 100 of the energy storage cabinet 10 with this structure.

[0168] Reference Figure 4 and Figure 5 Please refer to Figure 10 , Figure 10 This is a schematic diagram of the structure of an energy storage device (showing a first bottom bracket, a second bottom bracket, and a first bottom beam) provided in some embodiments of this application. According to some embodiments of this application, the frame 11 further includes a second column 110 and a plurality of second brackets 119; the second column 110 extends along the height direction Z of the energy storage cabinet 10; the plurality of second brackets 119 are used to support the battery device 20, the plurality of second brackets 119 are connected to the second column 110 and are spaced apart along the height direction Z, the plurality of second brackets 119 are arranged in a one-to-one correspondence with the plurality of first brackets 112, and each second bracket 119 and its corresponding first bracket 112 jointly support one battery device 20.

[0169] The second column 110 is a component in the frame 11 that serves as a positioning and support. The second column 110 is provided to facilitate the spaced arrangement of multiple second brackets 119 along the height direction Z of the energy storage cabinet 10. The energy storage cabinet 10 may include multiple second columns 110, which can constitute the main body of one side of the frame 11 of the energy storage box 30. For example, the first column 111 and the second column 110 are respectively located on opposite sides of the frame 11 in the width direction X or the length direction Y of the energy storage cabinet 10.

[0170] The second column 110 can be made of metal materials such as steel or aluminum alloy to give it high structural strength.

[0171] The second bracket 119 is a component used to support the battery device 20. The battery device 20 can be mounted on the second bracket 119 so that the first bracket 112 and the second bracket 119 can jointly support the battery device 20. The second bracket 119 allows multiple battery devices 20 to be stacked along the direction of gravity inside the energy storage cabinet 10. The second bracket 119 can be made of metal materials such as steel or aluminum alloy to give the first bracket 112 high structural strength.

[0172] In an embodiment where the first bracket 112 and the second bracket 119 are both spaced apart along the width direction X of the energy storage cabinet 10, the first bracket 112 and the second bracket 119 may both extend along the length direction Y of the energy storage cabinet 10.

[0173] In an embodiment where the first bracket 112 and the second bracket 119 are both spaced apart along the length direction Y of the energy storage cabinet 10, the first bracket 112 and the second bracket 119 may both extend along the width direction X of the energy storage cabinet 10.

[0174] In this embodiment, each second bracket 119 and its corresponding first bracket 112 jointly support a battery device 20, thereby enabling the battery device 20 to be supported by both the second bracket 119 and the first bracket 112. This increases the stability of the battery device 20 under stress and reduces the risk of the battery device 20 tipping off the first bracket 112 during assembly and use, thereby increasing the reliability of the energy storage device 100.

[0175] Please refer to Figure 10 According to some embodiments of this application, the lowest one of the plurality of second brackets 119 is the second bottom bracket 1191; along the height direction Z of the energy storage cabinet 10, at least a portion of the first bottom beam 113 is located below the second bottom bracket 1191 and supports the second bottom bracket 1191.

[0176] In some embodiments, the first bottom beam 113 has a first end 1131 and a second end 1131 disposed opposite to each other in the width direction X of the energy storage cabinet 10. In the height direction Z of the energy storage cabinet 10, the first end 1131 is located below the first bottom bracket 1121 and is connected to the first bottom bracket 1121, and the second end is located below the second bottom bracket 1191 and is connected to the second bottom bracket 1191.

[0177] In this embodiment, at least a portion of the first bottom beam 113 is located below the second bottom bracket 1191 and supports the second bottom bracket 1191. Thus, relative to the case where the second bottom bracket 1191 and the first bottom beam 113 do not abut in the height direction Z of the energy storage cabinet 10, the first bottom beam can provide support force to the second bottom bracket 1191, thereby improving the structural strength of the bottom bracket. This reduces the risk of the second bottom bracket 1191 deforming due to the weight of the battery device 20 when supporting the battery device 20, thereby reducing the risk of the battery device 20 falling off. This improves the reliability of the energy storage device 100 of the energy storage cabinet 10 with this structure.

[0178] Reference Figure 5 According to some embodiments of this application, the frame 11 includes a plurality of second columns 110, which are spaced apart along the length Y direction of the energy storage cabinet 10, and the second bracket 119 is connected to the plurality of second columns 110.

[0179] In this embodiment, multiple second columns 110 are spaced apart along the length Y direction of the energy storage cabinet 10, thereby increasing the structural strength of the frame 11 in its height Z direction and thus increasing the reliability of the energy storage device 100. The second bracket 119 is connected to multiple second columns 110, thereby increasing the area of ​​the second bottom bracket 1191 supported by the second columns 110 compared to the case where the second bottom bracket 1191 is connected to a single second column 110, further increasing the structural strength of the second bottom bracket 1191. This further reduces the risk of the second bottom bracket 1191 deforming due to the weight of the battery device 20, which could lead to the battery device 20 falling off, and thus further improves the reliability of the energy storage device 100 of the energy storage cabinet 10 with this structure.

[0180] Please refer to Figure 5 and Figure 6 This application provides an energy storage cabinet 10, including a frame 11. The frame 11 includes a first column 111, a first bracket 112, and a first bottom beam 113. The first column 111 extends along the height direction Z of the energy storage cabinet 10. A plurality of first brackets 112 are used to support battery devices 20. The plurality of first brackets 112 are connected to the first column 111 and are spaced apart along the height direction Z. The lowest one of the plurality of first brackets 112 is the first bottom bracket 1121. Along the height direction Z of the energy storage cabinet 10, at least a portion of the first bottom beam 113 is located below the first bottom bracket 1121 and supports the first bottom bracket 1121.

[0181] In this embodiment, at least a portion of the first bottom beam 113 of the energy storage cabinet 10 is located below the first bottom bracket 1121 and supports the first bottom bracket 1121. Thus, relative to the case where the first bottom bracket 1121 and the first bottom beam 113 do not abut in the height direction Z of the energy storage cabinet 10, the first bottom beam can provide support force to the first bottom bracket 1121, thereby improving the structural strength of the bottom bracket. This reduces the risk of the first bottom bracket 1121 deforming due to the weight of the battery device 20, which could lead to the battery device 20 falling off.

[0182] According to some embodiments of this application, see Figures 3 to 10As shown, this application embodiment provides an energy storage device 100, including an energy storage cabinet 10 and a plurality of battery devices 20. The energy storage cabinet 10 includes a frame 11, which includes a first column 111, a first bracket 112, and a first bottom beam 113. The first column 111 extends along the height direction Z of the energy storage cabinet 10. A plurality of first brackets 112 are connected to the first column 111 and are spaced apart along the height direction Z. The battery devices 20 are disposed in the energy storage cabinet 10 and supported by the plurality of first brackets 112 in a one-to-one correspondence. The lowest of the plurality of first brackets 112 is the first bottom bracket 1121. The first bottom beam 113 extends along the height direction Z of the energy storage cabinet 10, and at least a portion of the first bottom beam 113 is located below the first bottom bracket 1121 and supports the first bottom bracket 1121. The first bottom bracket 1121 is connected to the first bottom beam 113 by a first fastener 114. The first bottom bracket 1121 includes a first vertical portion 1121A and a first horizontal portion 1121B connected together. The first vertical portion 1121A is connected to the first column 111, and the first horizontal portion 1121B is connected to the first bottom beam 113 via a first fastener 114. According to some embodiments of this application, the first horizontal portion 1121B includes a body 1121C and a protrusion 1121D. The body 1121C has a first through hole 11211 through which the first fastener 114 passes. The protrusion 1121D protrudes from the upper surface of the body 1121C and is used to support the battery device 20. The protrusion 1121D has a bearing surface 11212 for supporting the battery device 20, and the bearing surface 11212 is planar. Along the height direction Z of the energy storage cabinet 10, the height of the protrusion 1121D protruding from the upper surface of the body 1121C is greater than or equal to the height of the first fastener 114 protruding from the upper surface of the body 1121C. Along the width direction X of the energy storage cabinet 10, a first fastener 114 is located between the protrusion 1121D and the first vertical portion 1121A. The first vertical portion 1121A is connected to the first column 111 by a second fastener 115. A first bottom beam 113 extends along the width direction X of the energy storage cabinet 10 and has a first end 1131 in the width direction X of the energy storage cabinet 10; along the height direction Z of the energy storage cabinet 10, the first end 1131 is located below and connected to the first bottom bracket 1121. The frame 11 includes a plurality of first bottom beams 113, which are spaced apart along the length direction Y of the energy storage cabinet 10, and the first bottom bracket 1121 is connected to the plurality of first bottom beams 113. The frame 11 also includes a locking beam 116, which extends along the length Y of the energy storage cabinet 10, and the lower end of the first column 111 is connected to the locking beam 116.The locking beam 116 frame 11 also includes a reinforcing member 117, which includes a connected second vertical portion 1171 and a second horizontal portion 1172. The second vertical portion 1171 is connected to the locking beam 116 along the height direction Z of the energy storage cabinet 10. The second horizontal portion 1172 is located between the first bottom bracket 1121 and the first bottom beam 113, and the second horizontal portion 1172 has a second through hole 1172A for the first fastener 114 to pass through. The frame 11 also includes a second bottom beam 118, which extends along the length direction Y of the energy storage cabinet 10. The locking beam 116 and the first bottom beam 113 are both connected to the second bottom beam 118. The frame 11 includes a plurality of first columns 111, which are spaced apart along the length direction Y of the energy storage cabinet 10. The first bracket 112 is connected to the plurality of first columns 111. The frame 11 also includes a second column 110 and a plurality of second brackets 119; the second column 110 extends along the height direction Z of the energy storage cabinet 10; the plurality of second brackets 119 are used to support battery devices 20, the plurality of second brackets 119 are connected to the second column 110 and are spaced apart along the height direction Z, the plurality of second brackets 119 are arranged in a one-to-one correspondence with a plurality of first brackets 112, and each second bracket 119 and its corresponding first bracket 112 jointly support one battery device 20. The lowest of the plurality of second brackets 119 is the second bottom bracket 1191; along the height direction Z of the energy storage cabinet 10, at least a portion of the first bottom beam 113 is located below the second bottom bracket 1191 and supports the second bottom bracket 1191. The frame 11 includes a plurality of second columns 110, the plurality of second columns 110 are spaced apart along the length direction Y of the energy storage cabinet 10, and the second brackets 119 are connected to the plurality of second columns 110.

[0183] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0184] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An energy storage device, characterized in that, Includes energy storage cabinet and multiple battery units; The energy storage cabinet includes a frame, and the frame includes: The first column extends along the height direction of the energy storage cabinet; Multiple first brackets are connected to the first column and spaced apart along the height direction. Multiple battery devices are disposed in the energy storage cabinet and supported by the multiple first brackets one by one. The lowest one of the multiple first brackets is the first bottom bracket. A first bottom beam, along the height direction of the energy storage cabinet, at least a portion of the first bottom beam is located below the first bottom bracket and supports the first bottom bracket.

2. The energy storage device according to claim 1, characterized in that, The first bottom bracket is connected to the first bottom beam by a first fastener.

3. The energy storage device according to claim 2, characterized in that, The first bottom bracket includes a first vertical part and a first horizontal part connected together. The first vertical part is connected to the first column, and the first horizontal part is connected to the first bottom beam by the first fastener.

4. The energy storage device according to claim 3, characterized in that, The first horizontal portion includes a body and a protrusion. The body has a first through hole through which the first fastener passes. The protrusion protrudes from the upper surface of the body and is used to support the battery device.

5. The energy storage device according to claim 4, characterized in that, The protrusion has a bearing surface for supporting the battery device, and the bearing surface is a plane.

6. The energy storage device according to claim 4, characterized in that, Along the height direction of the energy storage cabinet, the height of the protrusion protruding from the upper surface of the body is greater than or equal to the height of the first fastener protruding from the upper surface of the body.

7. The energy storage device according to claim 6, characterized in that, Along the width direction of the energy storage cabinet, the first fastener is located between the protrusion and the first vertical part.

8. The energy storage device according to claim 3, characterized in that, The first vertical part is connected to the first column by a second fastener.

9. The energy storage device according to claim 2, characterized in that, The first bottom beam extends along the width direction of the energy storage cabinet, and the first bottom beam has a first end in the width direction of the energy storage cabinet; Along the height direction of the energy storage cabinet, the first end is located below the first bottom bracket and is connected to the first bottom bracket.

10. The energy storage device according to claim 9, characterized in that, The frame includes a plurality of first bottom beams, which are spaced apart along the length of the energy storage cabinet, and the first bottom bracket is connected to the plurality of first bottom beams.

11. The energy storage device according to claim 2, characterized in that, The framework also includes: A locking beam extends along the length of the energy storage cabinet, and the lower end of the first column is connected to the locking beam.

12. The energy storage device according to claim 11, characterized in that, The framework also includes: The reinforcing member includes a second vertical part and a second horizontal part connected together. The second vertical part is connected to the locking beam along the height direction of the energy storage cabinet. The second horizontal part is located between the first bottom bracket and the first bottom beam. The second horizontal part is provided with a second through hole for the first fastener to pass through.

13. The energy storage device according to claim 11, characterized in that, The framework also includes: The second bottom beam extends along the length of the energy storage cabinet, and both the locking beam and the first bottom beam are connected to the second bottom beam.

14. The energy storage device according to claim 1, characterized in that, The frame includes a plurality of first columns, which are spaced apart along the length of the energy storage cabinet, and the first bracket is connected to the plurality of first columns.

15. The energy storage device according to claim 1, characterized in that, The framework also includes: The second column extends along the height direction of the energy storage cabinet. Multiple second brackets are provided for supporting battery devices. The multiple second brackets are connected to the second column and are spaced apart along the height direction. The multiple second brackets are arranged in one-to-one correspondence with the multiple first brackets. Each second bracket and its corresponding first bracket jointly support one battery device.

16. The energy storage device according to claim 15, characterized in that, The lowest one of the plurality of second brackets is the second bottom bracket; Along the height direction of the energy storage cabinet, at least a portion of the first bottom beam is located below the second bottom bracket and supports the second bottom bracket.

17. The energy storage device according to claim 15, characterized in that, The frame includes a plurality of second columns, which are spaced apart along the length of the energy storage cabinet, and the second bracket is connected to the plurality of second columns.

18. An energy storage cabinet, characterized in that, Includes a framework, the framework comprising: The first column extends along the height direction of the energy storage cabinet; Multiple first brackets are used to support the battery device. The multiple first brackets are connected to the first column and are spaced apart along the height direction. The lowest one of the multiple first brackets is the first bottom bracket. A first bottom beam, along the height direction of the energy storage cabinet, at least a portion of the first bottom beam is located below the first bottom bracket and supports the first bottom bracket.

19. An energy storage system, characterized in that, include: Power conversion device; The energy storage device according to any one of claims 1-17, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device; Alternatively, the energy storage cabinet as described in claim 18.

20. A charging network, characterized in that, include: Charging stations; The energy storage device according to any one of claims 1-17, wherein the energy storage device is used to provide electrical energy to the charging pile; Alternatively, the energy storage cabinet as described in claim 18.

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