Energy storage device, power consumption device, energy storage system, and charging network

Abstract

The application is suitable for the field of energy storage technology, and provides an energy storage device, an electric device, an energy storage system and a charging network. The energy storage device comprises: a cabinet body, the cabinet body comprising a first wall structure and a second wall structure; a battery device accommodated in an accommodation space; a reinforcing piece, one end of the reinforcing piece being connected to the first wall structure, the other end of the reinforcing piece being connected to the second wall structure, and the two ends of the reinforcing piece being arranged at intervals in the height direction of the cabinet body. In the energy storage device provided by the application, the second wall structure and the first wall structure are located on different sides of the accommodation space, the reinforcing piece is arranged, the two ends of the reinforcing piece are connected to the first wall structure and the second wall structure respectively, the strength of the first wall structure is improved through the reinforcing piece, the tensile force in the height direction of the cabinet body and directed away from the direction of gravity is provided to the first wall structure, the deformation of the first wall structure is inhibited, and the strength of the first wall structure is improved.

Description

Technical Field

[0001] This application belongs to the field of energy storage technology, and in particular relates to an energy storage device, an electrical device, an energy storage system and a charging network. Background Technology

[0002] In current energy storage devices, the cabinet contains a large number of battery devices and is quite heavy. During the hoisting process of the energy storage device, the bottom of the cabinet is prone to significant deformation. Utility Model Content

[0003] In view of the above problems, this application provides an energy storage device, an electrical device, an energy storage system, and a charging network, which can alleviate the problem of bottom deformation during the hoisting process of current energy storage devices.

[0004] In a first aspect, embodiments of this application provide an energy storage device, comprising: The cabinet has a receiving space. The cabinet includes a first wall structure and a second wall structure for enclosing the receiving space. The first wall structure is located below the receiving space along the height direction of the cabinet, and the second wall structure is located on different sides of the receiving space. A battery device is housed in the receiving space. A reinforcing member has one end connected to the first wall structure and the other end connected to the second wall structure. The two ends of the reinforcing member are spaced apart along the height direction of the cabinet.

[0005] In this embodiment, the first wall structure is located at the bottom of the cabinet, and the second wall structure is located on different sides of the accommodating space. A reinforcing member is provided, with its two ends connected to the first and second wall structures respectively. The two ends of the reinforcing member are spaced apart in the height direction of the cabinet. This enhances the strength of the first wall structure and provides a tensile force to the first wall structure along the height direction of the cabinet, pointing away from the direction of gravity. This suppresses the deformation of the first wall structure and improves its strength.

[0006] In some embodiments, the first wall structure includes a first beam and a second beam connected to the first beam. The length direction of the first beam, the length direction of the second beam, and the height direction of the cabinet are perpendicular to each other. The length of the first beam is greater than the length of the second beam. The orthographic projection of the reinforcing member onto the first wall structure is parallel to the length direction of the first beam.

[0007] In the technical solution of this embodiment, since the length of the first beam is greater than the length of the second beam, and since the two ends of the reinforcing member are respectively connected to the first wall structure and the second wall structure, the orthographic projection of the reinforcing member is parallel to the length direction of the first beam. This limits the relative position of the second wall structure and the first wall structure, so that the second wall structure can better support the reinforcing member and better suppress the deformation of the first wall structure.

[0008] In some embodiments, the second wall structure includes a third beam, one end of the reinforcing member is connected to the first beam, and the other end of the reinforcing member away from the first wall structure is connected to the third beam.

[0009] In this embodiment, the second wall structure includes a third beam, and the reinforcing member is connected to the third beam to provide support for the reinforcing member through the third beam. This allows the second wall structure to better support the reinforcing member and better suppress the deformation of the first wall structure. At the same time, the third beam can also improve the strength of the second wall structure.

[0010] In some embodiments, the length direction of the third beam is perpendicular to the height direction of the cabinet, or the length direction of the third beam is parallel to the height direction of the cabinet.

[0011] The technical solution of this embodiment provides some length directions of the third beams to adapt to cabinets of different specifications and requirements.

[0012] In some embodiments, the second wall structure is connected to the first wall structure and to the second beam, and the third beam is connected to the second beam and perpendicular to the second beam.

[0013] In the technical solution of this embodiment, the second wall structure is connected to the second beam. That is, the second wall structure is a side wall structure with a smaller area in the cabinet. The strength of this side wall structure is greater than that of the side wall structure with a larger area in the cabinet. Accordingly, the second wall structure is connected to the second beam so that the second wall structure can better support the reinforcing member, thereby better suppressing the deformation of the first wall structure.

[0014] In some embodiments, the second wall structure and the first wall structure are located on both sides of the accommodating space along the height direction of the cabinet, and the length direction of the third beam is parallel to the length direction of the first beam.

[0015] In the technical solution of this embodiment, the second wall structure and the first wall structure are located on both sides of the accommodating space along the height direction of the cabinet. That is, the second wall structure is the top wall in the cabinet, so that the third beam is parallel to the first beam, so that the reinforcing member is connected to the beam structure of the top wall, and the beam structure of the top wall provides support for the reinforcing member.

[0016] In some embodiments, the second beam is located at the edge of the first wall structure; the third beam is located at the edge of the second wall structure, the length direction of the third beam is parallel to the length direction of the second beam, and the orthographic projection of the third beam along the height direction of the cabinet overlaps with the second beam.

[0017] In the technical solution of this embodiment, the third beam is a beam structure directly above the second beam along the height direction of the cabinet, so that the third beam is a beam structure in the cabinet frame structure; the cabinet itself provides support and installation foundation for the reinforcement, which can suppress the deformation of the first wall structure through the reinforcement, and does not require additional changes to the cabinet structure, thus making it more adaptable.

[0018] In some embodiments, the second wall structure includes a fourth beam located at the edge of the second wall structure, the second beam located at the edge of the first wall structure, the length direction of the fourth beam being parallel to the length direction of the second beam, and the orthographic projection of the fourth beam along the height direction of the cabinet overlapping the second beam; the ratio of the distance between the connection portion of the reinforcement and the second wall structure and the adjacent fourth beam to the dimension of the second wall structure in the corresponding direction is less than or equal to 0.4.

[0019] In this embodiment, the fourth beam is a beam structure directly above the second beam along the height direction of the cabinet, making the fourth beam a beam structure in the cabinet frame structure; the connection between the reinforcing member and the second wall structure is close to the adjacent fourth beam, so that the connection between the reinforcing member and the second wall structure has higher strength, thereby facilitating better support for the reinforcing member and better suppressing the deformation of the first wall structure.

[0020] In some embodiments, the first beam includes a connecting portion, and a reinforcing member is connected to the connecting portion; in the length direction of the first beam, the ratio of the length of the connecting portion to the length of the first beam is less than or equal to 0.4, and the connecting portion is located at the middle of the first beam.

[0021] In this embodiment, the first beam includes a connecting portion, which is located in the middle of the first beam. The ratio of the length of the connecting portion to the length of the first beam is less than or equal to 0.4, so that the reinforcing member is connected to the first beam near the middle. Since the middle of the first beam is more prone to deformation and the deformation is greater during hoisting, the reinforcing member is connected to the first beam near the middle to better and more specifically suppress the deformation of the first wall structure.

[0022] In some embodiments, in the length direction of the first beam, the ratio of the length of the connecting portion to the length of the first beam is less than or equal to 0.3.

[0023] In the technical solution of this embodiment, since the middle part of the first beam is more prone to deformation and the deformation is greater during hoisting, the connecting part connected to the reinforcing member is located near the middle of the first beam, and the ratio of the length of the connecting part to the length of the first beam is less than or equal to 0.3, so that the connecting part is located near the middle of the first beam, thereby better and more specifically suppressing the deformation of the first wall structure.

[0024] In some embodiments, in the length direction of the first beam, the ratio of the length of the connecting portion to the length of the first beam is less than or equal to 0.2.

[0025] In the technical solution of this embodiment, since the middle part of the first beam is more prone to deformation and the deformation is greater during hoisting, the connecting part connected to the reinforcing member is located near the middle of the first beam, and the ratio of the length of the connecting part to the length of the first beam is less than or equal to 0.2, so that the connecting part is located near the middle of the first beam, thereby better and more specifically suppressing the deformation of the first wall structure.

[0026] In some embodiments, the reinforcement is located on the side of the cabinet away from the receiving space.

[0027] In the technical solution of this embodiment, the reinforcing member is located outside the cabinet to reduce the space occupied by the reinforcing member inside the cabinet and to reduce the negative impact of the reinforcing member on the energy density of the energy storage device.

[0028] In some embodiments, the reinforcement is located within the receiving space.

[0029] In the technical solution of this embodiment, the reinforcing member is placed within the accommodating space to reduce the risk of damage to the reinforcing member caused by factors outside the cabinet.

[0030] In some embodiments, the accommodating space has a first space and a second space, the battery device is accommodated in the first space, and the second space is used to accommodate electronic devices; a second wall structure is used to enclose the first space, and at least a portion of the first wall structure is used to enclose the first space.

[0031] In the technical solution of this embodiment, the second wall structure is a wall structure that encloses the first space, so that the cabinet can provide different spaces for the battery device and electronic devices, and can also provide support for the reinforcing member to suppress the deformation of the first wall structure.

[0032] In some embodiments, the reinforcement is detachably connected to the first wall structure; and / or, the reinforcement is detachably connected to the second wall structure.

[0033] In the technical solution of this embodiment, the reinforcing member is detachably connected to the first wall structure and / or the second wall structure to facilitate the installation and removal of the reinforcing member; when the cabinet does not need to be hoisted, the reinforcing member can be removed to reduce the risk of damage to the reinforcing member and also to reduce space occupation.

[0034] In some embodiments, the cabinet further includes a mounting structure with a fixing structure, the fixing structure including a shaft configured to be movable relative to the mounting structure and partially extend beyond the mounting structure; the shaft is detachably connected to a reinforcement.

[0035] In the technical solution of this embodiment, a fixed structure is provided on the cabinet, and the shaft of the fixed structure can move relative to the cabinet to extend out of or retract into the cabinet's mounting structure, thereby facilitating the detachable connection of the reinforcing member to the shaft; when the reinforcing member is removed, this arrangement can also retract the shaft into the mounting structure to reduce space occupation.

[0036] In some embodiments, the mounting structure is provided with a channel, one end of which is connected to a space outside the mounting structure. The shaft is slidably disposed in the channel to extend or retract into the channel. The fixing structure also includes a limiting part connected to the end of the shaft facing outward from the mounting structure and located outside the channel. In the direction of movement perpendicular to the shaft, the maximum size of the limiting part is greater than the maximum size of the channel.

[0037] In the technical solution of this embodiment, a channel is provided on the cabinet to allow the shaft to extend or retract into the cabinet; a limiting part is provided to prevent the shaft from being completely retracted into the channel, thereby facilitating operation by the staff.

[0038] In some embodiments, the mounting structure is further provided with a first stop member, which is located on one side of the channel. At least a portion of the first stop member is spaced apart from the mounting structure to form a blocking space. The limiting part is further provided with a first limiting part, which is rotatable about the axial direction of the shaft so that the first limiting part can enter or exit the blocking space.

[0039] In the technical solution of this embodiment, a first stop is provided, and a blocking space is provided between the first stop and the cabinet; the limiting part can rotate around the axis of the shaft so that the limiting part can enter the blocking space and the first stop prevents the shaft from extending outside the channel, and the limiting part can also exit the blocking space so that the shaft can extend outside the channel.

[0040] In some embodiments, the limiting portion is detachably connected to the first stop.

[0041] In the technical solution of this embodiment, the limiting part is detachably connected to the first stop member, thereby reducing the risk that the limiting part may accidentally rotate and exit the stop space under external environment, vibration or other conditions.

[0042] In some embodiments, the cabinet is further provided with a second stop member, which is detachably connected to the mounting structure; at least a portion of the second stop member extends to the side of the limiting portion away from the mounting structure and presses the limiting portion into the mounting structure.

[0043] In the technical solution of this embodiment, a second stop is provided, which is detachably connected to the cabinet and can press the limiting part against the cabinet, thereby preventing the shaft from extending outside the channel.

[0044] In some embodiments, the reinforcement is a length-adjustable structural member.

[0045] In the technical solution of this embodiment, the reinforcing member is a structural member with adjustable length, so that the force applied to the first wall structure can be adjusted by adjusting the length of the reinforcing member, thereby making it easier to better suppress the deformation of the first wall structure.

[0046] In some embodiments, the reinforcement includes a first fixing portion and an adjusting portion connected to the first fixing portion, the first fixing portion being connected to one of a first wall structure or a second wall structure, and the adjusting portion being connected to the other of the first wall structure or the second wall structure; the adjusting portion is configured to be able to adjust its own length.

[0047] The technical solution of this embodiment provides specific structures for some reinforcing members, and sets up an adjustment part to adjust the length of the reinforcing member.

[0048] In some embodiments, the reinforcing member further includes a second fixing part, which is connected to one end of the first fixing part away from the adjusting part, and the other end of the second fixing part away from the adjusting part is connected to a corresponding first wall structure or second wall structure.

[0049] The technical solution of this embodiment further provides some specific structures of the reinforcing members, and provides a second fixing part so as to be connected to the first wall structure and the second wall structure respectively through the first fixing part and the second fixing part.

[0050] Secondly, embodiments of this application provide an electrical device, including the energy storage device provided in some embodiments of the first aspect.

[0051] Thirdly, embodiments of this application provide an energy storage system, including the energy storage device provided in some embodiments of the first aspect; the energy storage system further includes a power conversion device connected to the energy storage device to perform energy conversion on the current input to the energy storage device or output from the energy storage device.

[0052] Fourthly, embodiments of this application also provide a charging network, including an energy storage device provided in some embodiments of the first aspect, or an energy storage system provided in some embodiments of the third aspect; the charging network also includes charging piles, and the energy storage device is used to provide electrical energy to the charging piles.

[0053] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0054] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the structure of an energy storage device provided in some embodiments of this application; Figure 2 A perspective view of an energy storage device provided in some embodiments of this application; Figure 3 This is a front view schematic diagram of an energy storage device provided in some embodiments of this application; Figure 4 Side view schematic diagrams provided for some embodiments of this application; Figure 5 Front view schematic diagram of an energy storage device provided for other embodiments of this application; Figure 6 Side view schematic diagram of an energy storage device provided for other embodiments of this application; Figure 7 Side view schematic diagram of an energy storage device provided for some embodiments of this application; Figure 8 for Figure 7 Cross-sectional view at line AA; Figure 9 A front view schematic diagram of an energy storage device provided in some further embodiments of this application; Figure 10 Side view schematic diagram of an energy storage device provided for some embodiments of this application; Figure 11 Top view schematic diagram of an energy storage device provided for other embodiments of this application; Figure 12 for Figure 11 Cross-sectional view at the middle BB line; Figure 13 This is a front view schematic diagram of an energy storage device provided in some embodiments of this application; Figure 14 for Figure 3 A magnified view of a portion of point C in the middle; Figure 15 for Figure 14 Cross-sectional view at the DD line; Figure 16 Energy storage devices provided in other embodiments of this application Figure 3 A magnified view of a portion of point C in the middle; Figure 17 Energy storage devices provided in some embodiments of this application Figure 3A magnified view of a portion of point C in the middle; Figure 18 Schematic diagrams of the reinforcing members provided in some embodiments of this application; Figure 19 Schematic diagram of an energy storage system provided for some embodiments of this application; Figure 20 This is a schematic diagram of a charging network provided in some embodiments of this application.

[0055] The markings in the diagram mean: 1000. Energy storage devices; 100. Cabinet; 101. Accommodation space; 1011. First space; 1012. Second space; 10. First wall structure; 11. First beam; 111. Connecting part; 12. Second beam; 20. Second wall structure; 21. Third beam; 22. Fourth beam; 30. Fixing structure; 31. Shaft; 32. Limiting part; 321. First limiting part; 40. Mounting structure; 41. Passage; 51. First stop; 52. Second stop; 200. Battery device; 300. Reinforcing member; 61. First fixing part; 62. Adjusting part; 63. Second fixing part; 2000, Power conversion device; 3000, power generation equipment; 4000, charging piles; 5000, Connector. Detailed Implementation

[0056] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0058] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0059] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0060] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0061] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0062] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0063] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0064] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0065] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0066] An energy storage device is an integrated battery unit and control cabinet. The control cabinet and battery unit are coupled together to manage the battery unit and utilize the conversion between electrical energy and chemical energy to store and output electrical energy. The battery unit can serve as a backup power source, perform peak shaving and valley filling when the power system supply is uneven, regulate frequency when the power system load or power generation is high, or be applied in photovoltaic-storage power generation systems.

[0067] Due to the significant weight of both the energy storage unit's cabinet and the battery pack inside, the bottom wall of the cabinet is prone to deformation during hoisting, as are the beams of the bottom frame. The beam corresponding to the cabinet door is particularly long and experiences substantial deformation during hoisting. This deformation can create gaps between the cabinet door and the beam, and excessive gaps can compromise the sealing and fire safety requirements of the energy storage unit.

[0068] For some energy storage devices used on ships, which provide electricity to the vessel, the devices need to be hoisted and moved for charging, and then hoisted back to their installation position after charging is complete. This involves frequent hoisting of the energy storage devices. Under these conditions, the negative impact of deformation of the cabinet's bottom wall will gradually increase.

[0069] Based on the above considerations, in order to alleviate the problem of bottom deformation during hoisting in current energy storage devices, this application provides an energy storage device in which a first wall structure is located at the bottom of the cabinet to serve as the bottom wall of the cabinet, and a second wall structure is located on a different side of the accommodating space from the first wall structure. A reinforcing member is provided, with its two ends connected to the first wall structure and the second wall structure respectively, so as to improve the strength of the first wall structure and provide a tensile force to the first wall structure along the height direction of the cabinet in the direction away from the direction of gravity, thereby suppressing the deformation of the first wall structure and improving the strength of the first wall structure.

[0070] The energy storage device disclosed in this application can be used in the industrial field, such as for balancing loads and reducing peak-valley differences; it can also be used in commercial complexes to achieve peak shaving and valley filling and intelligent management of electricity, etc.

[0071] For ease of explanation, the following embodiments will be described using a containerized energy storage device 1000 as an example of an embodiment of this application.

[0072] refer to Figure 1This application provides an energy storage device 1000, including one or more battery clusters to increase the voltage and capacity of the energy storage device 1000. The battery cluster may include multiple battery devices 200, which are connected via a busbar to increase the voltage of the energy storage device 1000. When the energy storage device 1000 includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device 1000.

[0073] The energy storage device 1000 can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems, etc. The energy storage device 1000 can store electrical energy as needed and output it when appropriate. For example, the energy storage device 1000 can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours. The energy storage system provided in this application embodiment can be any power system that requires the energy storage device 1000.

[0074] In some embodiments, the energy storage device 1000 is an energy storage container or an energy storage cabinet.

[0075] In some embodiments, the energy storage device 1000 may include a cabinet 100 and one or more battery clusters, the battery clusters being housed in the cabinet 100.

[0076] In some embodiments, the energy storage device 1000 may include devices such as a thermal management device, a main control device, a control device, a power distribution device, and a fire protection device.

[0077] As an example, the thermal management device may include a liquid cooling unit that supplies coolant to each battery device 200 via piping for regulating the temperature of the individual battery cells.

[0078] As an example, the master control unit can serve as the battery management unit for the battery cluster, used to monitor and manage the battery cluster. The master control unit can monitor information such as the current, voltage, power, or temperature of the battery cluster. For instance, it can control the charging and discharging current and voltage of the battery cluster. The master control unit includes a slave battery management unit (SBMU), a fusion switch, and other devices.

[0079] As an example, the control device can serve as the battery management unit of the energy storage device 1000, used to monitor and manage the energy storage device 1000. The control device can monitor information such as the current, voltage, power, state of charge, or temperature of the energy storage device 1000. For example, it can control the charging and discharging current and voltage of the energy storage device 1000. As an example, the control device includes devices such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH) converter, and a fiber optic conversion device.

[0080] As an example, fire protection devices include control panels, detectors, alarm devices, etc., used to detect, alarm, or extinguish fires in energy storage systems.

[0081] As an example, the power distribution device can be used to distribute power to devices in the energy storage device 1000 that require electricity.

[0082] Firstly, reference Figures 2 to 4 This application provides an energy storage device 1000, including a cabinet 100, a battery device 200, and a reinforcing member 300. The cabinet 100 has a receiving space 101, and includes a first wall structure 10 and a second wall structure 20 for enclosing the receiving space 101. The first wall structure 10 is located below the receiving space 101 along the height direction of the cabinet 100, and the second wall structure 20 is located on different sides of the receiving space 101. The battery device 200 is received in the receiving space 101. One end of the reinforcing member 300 is connected to the first wall structure 10, and the other end of the reinforcing member 300 is connected to the second wall structure 20. The two ends of the reinforcing member 300 are spaced apart along the height direction of the cabinet 100.

[0083] In the diagram, the X-axis represents the length of cabinet 100, the Y-axis represents the width of cabinet 100, and the Z-axis represents the height of cabinet 100.

[0084] Cabinet 100 refers to the structure in energy storage device 1000 used to provide an installation base for battery device 200 and other structures. Cabinet 100 can be used to house battery device 200 and other structures (such as thermal management device, main control device, etc.). Cabinet 100 may include a container or other structures. The shape of cabinet 100 may be prismatic, cylindrical or other shapes.

[0085] The accommodating space 101 refers to the space in the cabinet 100 used to accommodate the battery device 200 and other structures. The accommodating space 101 can be a prism-shaped space structure, a cylindrical space structure, or a space structure of other shapes.

[0086] Battery device 200 refers to the device in energy storage device 1000 used for storing and releasing electrical energy. The number of battery devices 200 can be one, two, or more. Battery device 200 may include one or more battery cells, which can be connected in series, parallel, or a combination thereof. A combination thereof means that multiple battery cells are connected in both series and parallel connections. Multiple battery cells can be directly connected in series, parallel, or a combination thereof, and then the entire assembly of the multiple battery cells is housed within a casing. Alternatively, battery device 200 can be formed by first connecting multiple battery cells in series, parallel, or a combination thereof, and then connecting these multiple battery devices in series, parallel, or a combination thereof to form a whole. Battery device 200 may also include other structures; for example, it may include a busbar component for realizing electrical connections between multiple battery cells.

[0087] Each battery cell can be a rechargeable battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell can be cylindrical, flat, cuboid, or other shapes.

[0088] The battery device 200 is housed in the battery compartment. A support can be installed in the battery compartment to support the battery device 200, or the battery device 200 can be directly connected to the cabinet 100 through an intermediate structure.

[0089] The first wall structure 10 refers to a part of the cabinet 100 used to enclose the receiving space 101. The first wall structure 10 may include a plate, a beam or other structure. Depending on the shape of the cabinet 100, the first wall structure 10 may be square, circular or other shapes. The first wall structure 10 is located below the receiving space 101 along the height direction Z of the cabinet 100, that is, the first wall structure 10 is the bottom structure of the cabinet 100. When the battery device 200 is received in the receiving space 101, the battery device 200 may be placed directly on the first wall structure 10, or it may be indirectly connected to the first wall structure 10 through a bracket or other structure.

[0090] For example, the first wall structure 10 includes a frame structure enclosed by beams, and the first wall structure 10 also includes a plate connected to the frame structure.

[0091] The second wall structure 20 refers to a part of the cabinet 100 used to enclose the accommodating space 101. The second wall structure 20 may include a plate, a beam or other structure. The number of second wall structures 20 may be one, two or more. Depending on the shape of the cabinet 100, the second wall structure 20 may be square or other shapes.

[0092] For example, the second wall structure 20 includes a beam and a plate connected to the beam.

[0093] The second wall structure 20 and the first wall structure 10 are located on different sides of the accommodating space 101. When the first wall structure 10 is located below the cabinet 100 along the height direction Z, the second wall structure 20 can be located on one side of the first wall structure 10, that is, the second wall structure 20 can serve as a side wall structure of the cabinet 100. In this case, the second wall structure 20 can be connected to the first wall structure 10. The second wall structure 20 can also be located at the top of the cabinet 100, that is, the second wall structure 20 can also serve as the top wall of the cabinet 100. In this case, the second wall structure 20 and the first wall structure 10 are located on opposite sides of the accommodating space 101 along the height direction Z of the cabinet 100.

[0094] The reinforcing member 300 refers to the structure in the energy storage device 1000 used to improve the strength of the first wall structure 10. The reinforcing member 300 may include a columnar structure, a plate-like structure, or other shapes. The number of reinforcing members 300 may be one, two, or more. The material of the reinforcing member 300 may include metal, plastic, or other materials.

[0095] One end of the reinforcing member 300 is connected to the first wall structure 10. The reinforcing member 300 can be fixedly connected to the first wall structure 10 by welding, bonding or other means, or it can be detachably connected to the first wall structure 10 by screwing, snapping or other means.

[0096] When the first wall structure 10 includes a beam and a plate, the stiffener 300 can be connected to either the plate or the beam; for example, the stiffener 300 is connected to the beam in the first wall structure 10.

[0097] For example, when the first wall structure 10 includes a beam and a plate, the stiffener 300 is connected to the plate. In this case, the stiffener 300 can be connected to the middle of the plate to better suppress the deformation of the first wall structure 10. For example, when the first wall structure 10 includes a beam and a plate, the stiffener 300 is connected to the beam. In this case, the stiffener 300 can be connected to the middle of the beam to better suppress the deformation of the first wall structure 10.

[0098] The other end of the reinforcing member 300 is connected to the second wall structure 20. The reinforcing member 300 can be fixedly connected to the second wall structure 20 by welding, bonding or other means, or it can be detachably connected to the second wall structure 20 by screwing, snapping or other means.

[0099] In the case where the second wall structure 20 includes beams and plates, the stiffener 300 can be connected to either the plate or the beam; for example, the stiffener 300 is connected to the beam in the second wall structure 20.

[0100] The two ends of the reinforcing member 300 are spaced apart in the height direction Z of the cabinet 100. The two ends of the reinforcing member 300 refer to the two ends of the reinforcing member 300 that are respectively connected to the first wall structure 10 and the second wall structure 20. The two ends of the reinforcing member 300 are spaced apart in the height direction Z of the cabinet 100, that is, the two ends of the reinforcing member 300 have different heights, that is, the two ends of the reinforcing member 300 are not in the same horizontal plane perpendicular to the height direction Z of the cabinet 100.

[0101] When the first wall structure 10 is the bottom wall structure of the cabinet 100, the two ends of the reinforcing member 300 are spaced apart in the height direction Z of the cabinet 100, so that the end of the reinforcing member 300 connected to the second wall structure 20 can be located above the first wall structure 10, so that the tensile force provided by the reinforcing member 300 to the first wall structure 10 can have a component force parallel to the height direction Z of the cabinet 100, so as to better suppress the deformation of the first wall structure 10.

[0102] For example, when the second wall structure 20 is the side wall structure of the cabinet 100, the part where the reinforcing member 300 is connected to the second wall structure 20 is higher than the first wall structure 10; for example, when the second wall structure 20 is the top wall structure of the cabinet 100, the part where the reinforcing member 300 is connected to the second wall structure 20 is naturally higher than the first wall structure 10.

[0103] The two ends of the reinforcing member 300 are respectively connected to the first wall structure 10 and the second wall structure 20, so that the second wall structure 20 can provide tensile force to the first wall structure 10 through the reinforcing member 300, thereby improving the strength of the first wall structure 10 and suppressing the deformation of the first wall structure 10.

[0104] In this embodiment, the first wall structure 10 is located at the bottom of the cabinet 100, and the second wall structure 20 is located on different sides of the accommodating space 101. A reinforcing member 300 is provided, with its two ends connected to the first wall structure 10 and the second wall structure 20 respectively. The two ends of the reinforcing member 300 are spaced apart in the height direction Z of the cabinet 100. This is to improve the strength of the first wall structure 10 and provide a tensile force to the first wall structure 10 along the height direction of the cabinet 100 in a direction away from the direction of gravity, thereby suppressing the deformation of the first wall structure 10 and improving its strength.

[0105] refer to Figures 2 to 4 In some embodiments, the first wall structure 10 includes a first beam 11 and a second beam 12 connected to the first beam 11. The length direction of the first beam 11, the length direction of the second beam 12 and the height direction of the cabinet 100 are perpendicular to each other. The length of the first beam 11 is greater than the length of the second beam 12. The orthographic projection of the reinforcing member 300 onto the first wall structure 10 is parallel to the length direction of the first beam 11.

[0106] The first beam 11 refers to the beam structure in the first wall structure 10. The first beam 11 can be an I-beam, a box beam, or a beam structure of other shapes. The first beam 11 can be located at the edge of the first wall structure 10, in which case the first beam 11 can be exposed outside the cabinet 100. The first beam 11 can also be located inside the first wall structure 10, in which case the first beam 11 can be located inside the accommodating space 101. The material of the first beam 11 can include metal, plastic, or other materials.

[0107] The second beam 12 refers to the second beam 12 in the first wall structure 10. The second beam 12 can be an I-beam, a box beam, or a beam structure of other shapes. The second beam 12 can be located at the edge of the first wall structure 10, in which case the second beam 12 can be exposed outside the cabinet 100. The second beam 12 can also be located inside the first wall structure 10, in which case the second beam 12 can be located inside the accommodating space 101. The second beam 12 is connected to the first beam 11 by means of bonding, welding, screwing, or other methods. The material of the second beam 12 can include metal, plastic, or other materials.

[0108] The length directions of the first beam 11, the second beam 12, and the height direction of the cabinet 100 are perpendicular to each other. The length direction of the first beam 11 can be parallel to the length direction X of the cabinet 100, and the length direction of the second beam 12 can be parallel to the width direction Y of the cabinet 100. Alternatively, the length direction of the first beam 11 can be parallel to the width direction Y of the cabinet 100, and the length direction of the second beam 12 can be parallel to the length direction X of the cabinet 100.

[0109] For example, the first beam 11 and the second beam 12 are both located at the edge of the first wall structure 10 and form the bottom frame structure of the cabinet 100. The length direction of the first beam 11 is parallel to the length direction X of the cabinet 100, while the length direction of the second beam 12 is parallel to the width direction Y of the cabinet 100.

[0110] The length of the first beam 11 is greater than the length of the second beam 12. In this case, the first beam 11 can be a beam structure parallel to the long side of the cabinet 100. For example, when both the first beam 11 and the second beam 12 are located at the edge of the first wall structure 10, the first beam 11 can be a frame beam corresponding to the long side of the cabinet 100. In this case, the first beam 11 can correspond to the cabinet door of the cabinet 100, and the second beam 12 can be a frame beam corresponding to the short side of the cabinet 100.

[0111] The orthographic projection of the reinforcing member 300 onto the first wall structure 10 is parallel to the length direction of the first beam 11, that is, the reinforcing member 300 also extends along the length direction of the first beam 11; at this time, the second wall structure 20 can be a side wall structure with a smaller area in the cabinet 100, or it can be the top wall of the cabinet 100.

[0112] In this embodiment, since the length of the first beam 11 is greater than the length of the second beam 12, and since the two ends of the reinforcing member 300 are respectively connected to the first wall structure 10 and the second wall structure 20, the orthographic projection of the reinforcing member 300 is parallel to the length direction of the first beam 11. This restricts the relative position of the second wall structure 20 and the first wall structure 10, so that the second wall structure 20 can better support the reinforcing member 300 and better suppress the deformation of the first wall structure 10.

[0113] refer to Figures 5 to 12 In some embodiments, the second wall structure 20 includes a third beam 21, one end of the reinforcing member 300 is connected to the first beam 11, and the end of the reinforcing member 300 away from the first wall structure 10 is connected to the third beam 21.

[0114] The third beam 21 refers to the beam structure in the second wall structure 20. The third beam 21 can be an I-beam, a box beam, or a beam structure of other shapes. The third beam 21 can be located at the edge of the second wall structure 20, in which case the third beam 21 can be exposed outside the cabinet 100. The third beam 21 can also be located inside the second wall structure 20, in which case the third beam 21 can be located inside the accommodating space 101. The material of the third beam 21 can include metal, plastic, or other materials.

[0115] One end of the reinforcing member 300 is connected to the first beam 11. The reinforcing member 300 can be fixedly connected to the first beam 11 by welding, bonding or other means, or it can be detachably connected to the first beam 11 by screwing, snapping or other means.

[0116] The other end of the reinforcing member 300 away from the first wall structure 10 is connected to the third beam 21. The reinforcing member 300 can be fixedly connected to the third beam 21 by welding, bonding or other means, or it can be detachably connected to the third beam 21 by screwing, snapping or other means.

[0117] Depending on the relative positions of the first beam 11 and the third beam 21, the reinforcing member 300 can be located inside the accommodating space 101 or outside the cabinet 100.

[0118] For example, the first beam 11 is located at the edge of the first wall structure 10 and is exposed outside the cabinet 100, the third beam 21 is located at the edge of the second wall structure 20 and is exposed outside the cabinet 100, and the reinforcing member 300 is located outside the cabinet 100.

[0119] One end of the reinforcing member 300 is connected to the third beam 21 so that the second wall structure 20 can provide tensile force to the first wall structure 10 through the third beam 21 and the reinforcing member 300, thereby suppressing the deformation of the first wall structure 10.

[0120] The other end of the reinforcing member 300 is connected to the first beam 11 so that the reinforcing member 300 can provide tensile force to the first wall structure 10 to suppress deformation, and also reduce the risk of deformation of the first wall structure 10 under the action of the reinforcing member 300.

[0121] In this embodiment, the second wall structure 20 includes a third beam 21, and the reinforcing member 300 is connected to the third beam 21 so that the third beam 21 provides support for the reinforcing member 300. This allows the second wall structure 20 to better support the reinforcing member 300 and better suppress the deformation of the first wall structure 10. At the same time, the third beam 21 can also improve the strength of the second wall structure 20.

[0122] In some embodiments, the length direction of the third beam 21 is perpendicular to the height direction of the cabinet 100, or the length direction of the third beam 21 is parallel to the height direction of the cabinet 100.

[0123] The length of the third beam 21 can be perpendicular to the height of the cabinet 100. In this case, the second wall structure 20 can be the side wall structure of the cabinet 100, and the third beam 21 can be located at the edge of the second wall structure 20 and serve as the top short side beam in the frame of the cabinet 100. Alternatively, the second wall structure 20 can be the top wall structure of the cabinet 100, and the third beam 21 can be located at the edge of the second wall structure 20 and serve as the top long side beam in the frame of the cabinet 100. The third beam 21 can also serve as a beam structure inside the second wall structure 20.

[0124] The length direction of the third beam 21 can also be parallel to the height direction of the cabinet 100. In this case, the second wall structure 20 can be the side wall structure of the cabinet 100, and the third beam 21 can be located at the edge of the second wall structure 20 and serve as a vertical beam in the frame of the cabinet 100; the third beam 21 can also serve as a beam structure inside the second wall structure 20.

[0125] The length direction of the third beam 21 is perpendicular to or parallel to the height direction of the cabinet 100, so that the end of the reinforcing member 300 away from the first wall structure 10 can be connected to different parts of the cabinet 100 as needed.

[0126] This embodiment provides some length directions of the third beam 21 to adapt to cabinets 100 of different specifications and requirements.

[0127] refer to Figures 5 to 8 In some embodiments, the second wall structure 20 is connected to the first wall structure 10, and the second wall structure 20 is connected to the second beam 12, and the third beam 21 is connected to the second beam 12 and perpendicular to the second beam 12.

[0128] The second wall structure 20 is connected to the first wall structure 10. The second wall structure 20 can be connected to the first wall structure 10 by welding, screwing or other means. When the first wall structure 10 is located below the accommodating space 101 along the height direction Z of the cabinet 100, the second wall structure 20 is connected to the first wall structure 10, that is, the second wall structure 20 is the side wall structure of the cabinet 100.

[0129] The second wall structure 20 is connected to the second beam 12. The second wall structure 20 can be connected to the second beam 12 by welding, screwing or other means. When the second wall structure 20 is connected to the second beam 12, the second wall structure 20 and the second beam 12 are on the same plane on the same side of the receiving space 101.

[0130] When the length of the first beam 11 is greater than the length of the second beam 12, the second wall structure 20 is connected to the second beam 12. That is, the second wall structure 20 is the side wall structure corresponding to the short side of the cabinet 100, and the second wall structure 20 is the side wall structure with a smaller area among the side wall structures of the cabinet 100.

[0131] Because the smaller side wall structure in the cabinet 100 has higher strength than the larger side wall structure in the cabinet 100, the second wall structure 20 is made to be the smaller side wall structure in the cabinet 100. This allows the second wall structure 20 to better support the reinforcing member 300, thereby better suppressing the deformation of the first wall structure 10. At the same time, this arrangement can also reduce the risk of deformation of the second wall structure 20 caused by the reinforcing member 300 applying force to it.

[0132] When the end of the reinforcing member 300 away from the first wall structure 10 is connected to the third beam 21, the second wall structure 20 is connected to the second beam 12, and the third beam 21 is connected to the second beam 12 and perpendicular to the second beam 12. At this time, the third beam 21 can be located at the edge of the second wall structure 20 and serve as a beam in the frame structure of the cabinet 100. The third beam 21 can also be located in the middle of the second wall structure 20.

[0133] Example, reference Figure 5 , Figure 6 The third beam 21 is located at the edge of the second wall structure 20 and serves as a vertical beam in the frame structure of the cabinet 100; the first beam 11 is located at the edge of the first wall structure 10 and serves as the long side bottom beam in the frame structure of the cabinet 100, at which time the reinforcing member 300 is located outside the cabinet 100.

[0134] Example, reference Figure 7 , Figure 8 The third beam 21 is located in the middle of the second wall structure 20 and is located in the receiving space 101; the first beam 11 is located in the middle of the first wall structure 10 and the third beam 21 is located in the receiving space 101, at which time the reinforcing member 300 is located in the receiving space 101.

[0135] One end of the reinforcing member 300 is connected to the third beam 21. At this time, the reinforcing member 300 can be connected to the end of the third beam 21 that is connected to the top wall structure of the cabinet 100, or it can be connected to the part of the third beam 21 near the top wall of the cabinet 100 or other parts of the third beam 21.

[0136] When the second wall structure 20 is a side wall structure with a smaller area than the side wall structure of the cabinet 100, the third beam 21 is perpendicular to the second beam 12. At this time, the third beam 21 is shorter than the top long side beam of the cabinet 100 frame structure, which makes it easier to provide better support for the reinforcement 300 and can reduce the risk of deformation of the third beam 21 under the force of the reinforcement 300.

[0137] In this embodiment, the second wall structure 20 is connected to the second beam 12. That is, the second wall structure 20 is a side wall structure with a smaller area in the cabinet 100. The strength of this side wall structure is greater than that of the side wall structure with a larger area in the cabinet 100. Accordingly, the second wall structure 20 is connected to the second beam 12 so that the second wall structure 20 can better support the reinforcing member 300, thereby better suppressing the deformation of the first wall structure 10.

[0138] refer to Figures 9 to 12In some embodiments, the second wall structure 20 and the first wall structure 10 are located on both sides of the accommodating space 101 along the height direction of the cabinet 100, and the length direction of the third beam 21 is parallel to the length direction of the first beam 11.

[0139] The second wall structure 20 and the first wall structure 10 are located on both sides of the accommodating space 101 along the height direction of the cabinet 100. When the first wall structure 10 is located below the accommodating space 101, the second wall structure 20 is located below the accommodating space 101. That is, when the first wall structure 10 is the bottom wall of the cabinet 100, the second wall structure 20 is the top wall of the cabinet 100. At this time, the other end of the reinforcing member 300 is connected to the top wall of the cabinet 100.

[0140] The length direction of the third beam 21 is parallel to the length direction of the first beam 11. The third beam 21 can be located at the edge of the second wall structure 20 and serve as a beam in the frame structure of the cabinet 100; the third beam 21 can also be located in the middle of the second wall structure 20.

[0141] Example, reference Figure 9 , Figure 10 The third beam 21 is located at the edge of the second wall structure 20 and serves as the long side top beam in the frame structure of the cabinet 100; the first beam 11 is located at the edge of the first wall structure 10 and serves as the long side bottom beam in the frame structure of the cabinet 100, at which time the reinforcing member 300 is located outside the cabinet 100.

[0142] Example, reference Figure 11 , Figure 12 The third beam 21 is located in the middle of the second wall structure 20 and is located in the receiving space 101; the first beam 11 is located in the middle of the first wall structure 10 and the third beam 21 is located in the receiving space 101, at which time the reinforcing member 300 is located in the receiving space 101.

[0143] One end of the reinforcing member 300 is connected to the third beam 21. At this time, the reinforcing member 300 can be connected to the end of the third beam 21 that is connected to the side wall structure of the cabinet 100, or it can be connected to the part of the third beam 21 near the side wall of the cabinet 100 or other parts of the third beam 21.

[0144] When the second wall structure 20 is the top wall structure of the cabinet 100, the third beam 21 is parallel to the first beam 11. At this time, the length of the third beam 21 is relatively long, so as to provide more installation positions for the reinforcing member 300, thereby making it easier for the reinforcing member 300 to set the connection part and connection structure with the third beam 21 according to the requirements.

[0145] In this embodiment, the second wall structure 20 and the first wall structure 10 are located on both sides of the accommodating space 101 along the height direction of the cabinet 100, that is, the second wall structure 20 is the top wall in the cabinet 100, so that the third beam 21 is parallel to the first beam 11, so that the reinforcing member 300 is connected to the beam structure of the top wall, so that the beam structure of the top wall provides support for the reinforcing member 300.

[0146] refer to Figures 2 to 4 In some embodiments, the second beam 12 is located at the edge of the first wall structure 10; the third beam 21 is located at the edge of the second wall structure 20, the length direction of the third beam 21 is parallel to the length direction of the second beam 12, and the orthographic projection of the third beam 21 along the height direction of the cabinet 100 overlaps with the second beam 12.

[0147] The second beam 12 is located at the edge of the first wall structure 10, that is, the second beam 12 is exposed outside the cabinet 100. At this time, the second beam 12 can be used as a beam structure in the frame structure of the cabinet 100.

[0148] The third beam 21 is located at the edge of the second wall structure 20, that is, the third beam 21 is exposed outside the cabinet 100. At this time, the third beam 21 can be used as a beam structure in the frame structure of the cabinet 100.

[0149] The length direction of the third beam 21 is parallel to the length direction of the second beam 12, and the orthographic projection of the third beam 21 along the height direction Z of the cabinet 100 overlaps with the second beam 12, that is, the third beam 21 is above the second beam 12; at this time, the second wall structure 20 can be the side wall structure of the cabinet 100 or the top wall structure of the cabinet 100.

[0150] With the two ends of the reinforcing member 300 connected to the first beam 11 and the third beam 21 respectively, the third beam 21 is a beam structure in the frame structure of the cabinet 100 located above the second beam 12, so that the third beam 21 can not only serve as the frame structure of the cabinet 100 to provide support and protection for the cabinet 100, but also provide support and installation foundation for the reinforcing member 300.

[0151] The third beam 21 is a beam structure in the frame structure of the cabinet 100 located above the second beam 12, so that the beam structure of the cabinet 100 itself can provide support and installation foundation for the reinforcement 300. This can suppress the deformation of the first wall structure 10 through the reinforcement 300 without having to make additional changes to the structure of the cabinet 100.

[0152] In this embodiment, the third beam 21 is the beam structure directly above the second beam 12 along the height direction of the cabinet 100, so that the third beam 21 is a beam structure in the frame structure of the cabinet 100; the beam structure of the cabinet 100 itself provides support and installation foundation for the reinforcing member 300, which can suppress the deformation of the first wall structure 10 through the reinforcing member 300, and does not require additional changes to the structure of the cabinet 100, thus making it more adaptable.

[0153] refer to Figure 5 , Figure 6 , Figure 9 , Figure 10 In some embodiments, the second wall structure 20 includes a fourth beam 22 located at the edge of the second wall structure 20, and the second beam 12 located at the edge of the first wall structure 10. The length direction of the fourth beam 22 is parallel to the length direction of the second beam 12, and the orthographic projection of the fourth beam 22 along the height direction of the cabinet 100 overlaps with the second beam 12. The ratio of the distance between the connection portion of the reinforcing member 300 and the second wall structure 20 and the adjacent fourth beam 22 to the dimension of the second wall structure 20 in the corresponding direction is less than or equal to 0.4.

[0154] The fourth beam 22 refers to the beam structure in the second wall structure 20. The fourth beam 22 can be an I-beam, a box beam, or a beam structure of other shapes. The fourth beam 22 can be located at the edge of the second wall structure 20, in which case the fourth beam 22 can be exposed outside the cabinet 100. The fourth beam 22 can also be located inside the second wall structure 20, in which case the fourth beam 22 can be located inside the accommodating space 101. The material of the fourth beam 22 can include metal, plastic, or other materials.

[0155] The second beam 12 is located at the edge of the first wall structure 10, that is, the second beam 12 is exposed outside the cabinet 100. At this time, the second beam 12 can be used as a beam structure in the frame structure of the cabinet 100.

[0156] The fourth beam 22 is located at the edge of the second wall structure 20, that is, the fourth beam 22 is exposed outside the cabinet 100. At this time, the fourth beam 22 can be used as a beam structure in the frame structure of the cabinet 100.

[0157] The length direction of the fourth beam 22 is parallel to the length direction of the second beam 12, and the orthographic projection of the fourth beam 22 along the height direction Z of the cabinet 100 overlaps with the second beam 12, that is, the fourth beam 22 is above the second beam 12; at this time, the second wall structure 20 can be the side wall structure of the cabinet 100 or the top wall structure of the cabinet 100.

[0158] The ratio of the distance between the connection point of the reinforcing member 300 and the second wall structure 20 and the adjacent fourth beam 22 to the dimension of the second wall structure 20 in the corresponding direction is less than or equal to 0.4. This ratio can be 0.4, 0.3, 0.2, 0.1, 0 or other values. A ratio of 0 indicates that the end of the reinforcing member 300 away from the first wall structure 10 is connected to the fourth beam 22.

[0159] Depending on the relative position of the second wall structure 20, the direction of the distance between the connection between the reinforcing member 300 and the second wall structure 20 and the adjacent fourth beam 22 is also different. When the second wall structure 20 is a side wall of the cabinet 100, the direction of the distance between the connection between the reinforcing member 300 and the second wall structure 20 and the adjacent fourth beam 22 is the height direction Z of the cabinet 100, and the dimension of the second wall structure 20 in the corresponding direction is the dimension of the second wall structure 20 in the height direction Z of the cabinet 100. When the second wall structure 20 is a top wall of the cabinet 100, the direction of the distance between the connection between the reinforcing member 300 and the second wall structure 20 and the adjacent fourth beam 22 is the length direction X of the cabinet 100, and the dimension of the second wall structure 20 in the corresponding direction is the dimension of the second wall structure 20 in the length direction X of the cabinet 100.

[0160] Example, reference Figure 5 , Figure 6 The end of the reinforcing member 300 away from the first wall structure 10 is connected to the third beam 21 of the second wall structure 20. The third beam 21 is located at the edge of the second wall structure 20 and serves as a vertical beam in the frame structure of the cabinet 100. At this time, the dimension shown by H1 is the distance between the connection part of the reinforcing member 300 and the second wall structure 20 and the adjacent fourth beam 22, and the dimension shown by H is the dimension of the second wall structure 20.

[0161] Example, reference Figure 9 , Figure 10 The end of the reinforcing member 300 away from the first wall structure 10 is connected to the third beam 21 of the second wall structure 20. The third beam 21 is located at the edge of the second wall structure 20 and serves as the long side top beam in the frame structure of the cabinet 100. At this time, the dimension shown by H2 is the distance between the connection part of the reinforcing member 300 and the second wall structure 20 and the adjacent fourth beam 22, and the dimension shown by H is the dimension of the second wall structure 20.

[0162] This ratio reflects the distance between the connection between the reinforcing member 300 and the second wall structure 20 and the fourth beam 22. The smaller the ratio, the smaller the distance between the connection between the reinforcing member 300 and the second wall structure 20 and the fourth beam 22. Since the fourth beam 22 is a beam structure in the frame structure of the cabinet 100, the smaller the distance between the connection between the reinforcing member 300 and the second wall structure 20 and the fourth beam 22, the higher the strength of the connection between the reinforcing member 300 and the second wall structure 20, the better the support performance provided by the second wall structure 20 to the reinforcing member 300, and the stronger the ability to suppress the deformation of the first wall structure 10.

[0163] Accordingly, the ratio of the distance between the connection between the reinforcing member 300 and the second wall structure 20 and the adjacent fourth beam 22 to the dimension of the second wall structure 20 in the corresponding direction is less than or equal to 0.4, so that the second wall structure 20 can better provide the reinforcing member 300 with an installation foundation and support performance, so that the second wall structure 20 can better suppress the deformation of the first wall structure 10 through the reinforcing member 300.

[0164] In this embodiment, the fourth beam 22 is a beam structure directly above the second beam 12 along the height direction of the cabinet 100, so that the fourth beam 22 is a beam structure in the frame structure of the cabinet 100; the connection part between the reinforcing member 300 and the second wall structure 20 is close to the adjacent fourth beam 22, so that the connection part between the reinforcing member 300 and the second wall structure 20 has higher strength, thereby facilitating better support for the reinforcing member 300 and better suppressing the deformation of the first wall structure 10.

[0165] refer to Figure 13 In some embodiments, the first beam 11 includes a connecting portion 111, and the reinforcing member 300 is connected to the connecting portion 111; in the length direction of the first beam 11, the ratio of the length of the connecting portion 111 to the length of the first beam 11 is less than or equal to 0.4, and the connecting portion 111 is located in the middle of the first beam 11.

[0166] The connecting part 111 refers to the part of the first beam 11 that is connected to the reinforcing member 300. The connecting part 111 can be a part of the first beam 11 and is integrally formed with other parts of the first beam 11. At this time, there is no obvious interface between the first connecting part 111 and other parts of the first beam 11. The connecting part 111 can be connected to other parts of the adjacent first beam 11 by welding or other means, and the welding part is used to demarcate the connecting part 111 from other parts of the first beam 11. Depending on the shape of the first beam 11, the shape of the connecting part 111 can be box-shaped, I-shaped or other shapes.

[0167] The reinforcing member 300 is connected to the first beam 11 at one end and to the connecting part 111. The reinforcing member 300 can be connected to the connecting part 111 by welding, screwing or other means.

[0168] The length of the connecting part 111 refers to the dimension of the connecting part 111 in the length direction of the first beam 11, as shown in the reference. Figure 13 The length of the connecting part 111 is the dimension shown in L1 in the figure.

[0169] The ratio of the length of the connecting part 111 to the length of the first beam 11 is less than or equal to 0.4. The ratio of the length of the connecting part 111 to the length of the first beam 11 can be 0.4, 0.3, 0.2, 0.1 or other values. The connecting part 111 is also located in the middle of the first beam 11, that is, the distance between the connecting part 111 and the two ends of the first beam 11 along its length direction is equal or approximately equal.

[0170] When the first beam 11 is the long side beam structure of the cabinet 100 frame structure, during the hoisting of the energy storage device 1000, since the two ends of the first beam 11 along its length direction are respectively connected to other beam structures in the cabinet 100 frame structure, the deformation of the first beam 11 is greater as it gets closer to the middle along its length direction.

[0171] Accordingly, the connecting part 111 is located in the middle of the first beam 11, and the reinforcing member 300 is connected to the connecting part 111 to better suppress the deformation of the first beam 11, and thus better suppress the deformation of the first wall structure 10.

[0172] In this embodiment, the first beam 11 includes a connecting portion 111, and the connecting portion 111 is located in the middle of the first beam 11. The ratio of the length of the connecting portion 111 to the length of the first beam 11 is less than or equal to 0.4, so that the reinforcing member 300 is connected to the first beam 11 near the middle. Since the middle of the first beam 11 is more prone to deformation and the deformation is greater during hoisting, the reinforcing member 300 is connected to the first beam 11 near the middle to better and more specifically suppress the deformation of the first wall structure 10.

[0173] refer to Figure 13 In some embodiments, the ratio of the length of the connecting portion 111 to the length of the first beam 11 in the length direction of the first beam 11 is less than or equal to 0.3.

[0174] The ratio of the length of the connecting part 111 to the length of the first beam 11 is less than or equal to 0.3. The ratio of the length of the connecting part 111 to the length of the first beam 11 can be 0.3, 0.2, 0.1 or other values.

[0175] When the first beam 11 is the long side beam structure of the cabinet 100 frame structure, during the hoisting of the energy storage device 1000, since the two ends of the first beam 11 along its length direction are respectively connected to other beam structures in the cabinet 100 frame structure, the deformation of the first beam 11 is greater as it gets closer to the middle along its length direction.

[0176] Accordingly, when the connecting part 111 is located in the middle of the first beam 11, the ratio of the length of the connecting part 111 to the length of the first beam 11 is less than or equal to 0.3, so as to better suppress the deformation of the first beam 11, and thus better suppress the deformation of the first wall structure 10.

[0177] In this embodiment, since the middle part of the first beam 11 is more prone to deformation and has a larger deformation during hoisting, the connecting part 111 connected to the reinforcing member 300 is located near the middle of the first beam 11, and the ratio of the length of the connecting part 111 to the length of the first beam 11 is less than or equal to 0.3, so that the connecting part 111 is located near the middle of the first beam 11, thereby better and more specifically suppressing the deformation of the first wall structure 10.

[0178] refer to Figure 13 In some embodiments, the ratio of the length of the connecting portion 111 to the length of the first beam 11 in the length direction of the first beam 11 is less than or equal to 0.2.

[0179] The ratio of the length of the connecting part 111 to the length of the first beam 11 is less than or equal to 0.2. The ratio of the length of the connecting part 111 to the length of the first beam 11 can be 0.2, 0.15, 0.1, 0.05 or other values.

[0180] When the first beam 11 is the long side beam structure of the cabinet 100 frame structure, during the hoisting of the energy storage device 1000, since the two ends of the first beam 11 along its length direction are respectively connected to other beam structures in the cabinet 100 frame structure, the deformation of the first beam 11 is greater as it gets closer to the middle along its length direction.

[0181] Accordingly, when the connecting part 111 is located in the middle of the first beam 11, the ratio of the length of the connecting part 111 to the length of the first beam 11 is less than or equal to 0.2, so as to better suppress the deformation of the first beam 11, and thus better suppress the deformation of the first wall structure 10.

[0182] In this embodiment, since the middle part of the first beam 11 is more prone to deformation and has a larger deformation during hoisting, the connecting part 111 connected to the reinforcing member 300 is located near the middle of the first beam 11, and the ratio of the length of the connecting part 111 to the length of the first beam 11 is less than or equal to 0.2, so that the connecting part 111 is located near the middle of the first beam 11, thereby better and more specifically suppressing the deformation of the first wall structure 10.

[0183] refer to Figures 3 to 6 , Figure 9 , Figure 10 In some embodiments, the reinforcement 300 is located on the side of the cabinet 100 away from the receiving space 101.

[0184] The reinforcing member 300 is located on the side of the cabinet 100 away from the receiving space 101, that is, the reinforcing member 300 is located on the side of the cabinet 100 facing the external environment, that is, the reinforcing member 300 is located outside the receiving space 101, so as to reduce the space occupied by the reinforcing member 300 in the receiving space 101, and also reduce the negative impact that the setting of the reinforcing member 300 may have on the arrangement of the battery device 200.

[0185] For example, when the second wall structure 20 is the side wall structure of the cabinet 100, the first beam 11 can be the long side beam structure of the cabinet 100 frame structure. In this case, the reinforcing member 300 can be connected to the beam structure located at the edge in the second wall structure 20. This beam structure can be the vertical beam or the upper short side beam of the cabinet 100 frame structure. In this case, the reinforcing member 300 can be connected to the side of the first beam 11 and the second wall structure 20 facing the external environment.

[0186] For example, when the second wall structure 20 is the top wall structure of the cabinet 100, the first beam 11 can be the long side beam structure of the cabinet 100 frame structure. In this case, the reinforcing member 300 can be connected to the beam structure located at the edge in the second wall structure 20. This beam structure can be the upper long side beam or upper short side beam of the cabinet 100 frame structure. In this case, the reinforcing member 300 can be connected to the side of the first beam 11 and the second wall structure 20 facing the external environment.

[0187] In this embodiment, the reinforcing member 300 is located outside the cabinet 100 to reduce the space occupied by the reinforcing member 300 inside the cabinet 100 and to reduce the negative impact of the reinforcing member 300 on the energy density of the energy storage device 1000.

[0188] refer to Figure 7 , Figure 8 , Figure 11 , Figure 12 In some embodiments, the reinforcement 300 is located within the receiving space 101.

[0189] The reinforcement 300 is located within the accommodating space 101. At this time, the side walls, bottom walls, and top walls of the cabinet 100 can provide protection for the reinforcement 300, thereby reducing the risk of damage to the reinforcement 300 from impurities in the external environment.

[0190] For example, when the second wall structure 20 is the side wall structure of the cabinet 100, the first beam 11 can be the long side beam structure of the cabinet 100 frame structure. In this case, the reinforcing member 300 can be connected to the beam structure located at the edge in the second wall structure 20. This beam structure can be the vertical beam or the upper short side beam of the cabinet 100 frame structure. In this case, the reinforcing member 300 can be connected to the side of the first beam 11 and the second wall structure 20 facing the interior of the accommodating space 101.

[0191] For example, when the second wall structure 20 is the top wall structure of the cabinet 100, the first beam 11 can be the long side beam structure of the cabinet 100 frame structure. In this case, the reinforcing member 300 can be connected to the beam structure located at the edge in the second wall structure 20. This beam structure can be the upper long side beam or the upper short side beam of the cabinet 100 frame structure. In this case, the reinforcing member 300 can be connected to the side of the first beam 11 and the second wall structure 20 facing the interior of the accommodating space 101.

[0192] In this embodiment, the reinforcing member 300 is placed inside the accommodating space 101 to reduce the risk of damage to the reinforcing member 300 caused by factors other than the cabinet 100.

[0193] In some embodiments, the accommodating space 101 has a first space 1011 and a second space 1012, the battery device 200 is accommodated in the first space 1011, and the second space 1012 is used to accommodate electronic devices; the second wall structure 20 is used to enclose the first space 1011, and at least a portion of the first wall structure 10 is used to enclose the first space 1011.

[0194] The first space 1011 refers to the spatial structure in the accommodating space 101 used to accommodate the battery device 200. Depending on the shape of the cabinet 100, the first space 1011 can be a prism-shaped spatial structure or a spatial structure of other shapes. The second space 1012 refers to the spatial structure in the accommodating space 101 used to accommodate electronic devices. The electronic devices accommodated in the second space 1012 may include control boxes, combiner boxes, distribution boxes or other devices.

[0195] When the first wall structure 10 is located below the accommodating space 101 along the height direction Z of the cabinet 100, the first wall structure 10 can simultaneously serve as the bottom wall of the first space 1011 and the second space 1012. In this case, part of the first wall structure 10 is used to enclose the first space 1011.

[0196] The second wall structure 20 is used to enclose the first space 1011. That is, the first space 1011 can be enclosed by the second wall structure 20 in conjunction with the first wall structure 10 and other wall structures of the cabinet 100. The second wall structure 20 can be a wall structure in the cabinet 100 used to separate the first space 1011 and the second space 1012, or it can be a wall structure in the cabinet 100 used as a side wall or top wall of the cabinet 100.

[0197] When the reinforcing member 300 is located within the receiving space 101, both ends of the reinforcing member 300 are connected to the first wall structure 10 and the second wall structure 20 respectively, and the reinforcing member 300 is located within the first space 1011.

[0198] Because the battery device 200 is relatively heavy, the portion of the first wall structure 10 corresponding to the first space 1011 experiences greater force and deformation during the hoisting of the energy storage device 1000. Therefore, the reinforcing member 300 is positioned within the first space 1011 to better suppress deformation of the portion of the first wall structure 10 corresponding to the first space 1011. This arrangement also reduces the risk of the reinforcing member 300 penetrating the partition structure between the first space 1011 and the second space 1012, leading to a deterioration in the partitioning effect.

[0199] In this embodiment, the second wall structure 20 is a wall structure that encloses the first space 1011, so that the cabinet 100 can provide different spaces for the battery device 200 and electronic devices respectively, and can also provide support for the reinforcing member 300 to suppress the deformation of the first wall structure 10.

[0200] In some embodiments, the reinforcement 300 is detachably connected to the first wall structure 10; and / or, the reinforcement 300 is detachably connected to the second wall structure 20.

[0201] The reinforcing member 300 is detachably connected to the first wall structure 10. The reinforcing member 300 can be detachably connected to the first wall structure 10 by screwing, snapping or other means. Alternatively, a hook or other structure can be provided on the cabinet 100 for the reinforcing member 300 to be hung to achieve a detachable connection.

[0202] The reinforcing member 300 is detachably connected to the second wall structure 20. The reinforcing member 300 can be detachably connected to the second wall structure 20 by screwing, snapping or other means. Alternatively, a hook or other structure can be provided on the cabinet 100 for the reinforcing member 300 to be hung to achieve a detachable connection.

[0203] The reinforcing member 300 can be detachably connected to either the first wall structure 10 or the second wall structure 20, or it can be detachably connected to both the first wall structure 10 and the second wall structure 20.

[0204] The reinforcement 300 is detachably connected to the first wall structure 10 and / or the second wall structure 20 to facilitate the installation and removal of the reinforcement 300. When the reinforcement 300 is located outside the cabinet 100, this arrangement allows the reinforcement 300 to be removed when the energy storage device 1000 is not hoisted, thereby reducing space occupation, reducing the risk of damage to the reinforcement 300, and facilitating the reuse of the reinforcement 300 on different energy storage devices 1000.

[0205] In this embodiment, the reinforcing member 300 is detachably connected to the first wall structure 10 and / or the second wall structure 20 to facilitate the installation and removal of the reinforcing member 300. When the cabinet 100 does not need to be hoisted, the reinforcing member 300 can be removed to reduce the risk of damage to the reinforcing member 300 and also to reduce space occupation.

[0206] refer to Figure 3 , Figure 14 , Figure 15 In some embodiments, the cabinet 100 further includes a mounting structure 40, on which a fixing structure 30 is provided. The fixing structure 30 includes a shaft 31, which is configured to be movable relative to the mounting structure 40 and partially extend beyond the mounting structure 40. The shaft 31 is detachably connected to the reinforcement 300.

[0207] Mounting structure 40 refers to the structure in cabinet 100 used to provide a base for mounting structure 30. Mounting structure 40 can be the first wall structure 10, the second wall structure 20, or other structures of cabinet 100. Mounting structure 40 can be a part of the first wall structure 10 or the second wall structure 20, or the entire first wall structure 10 or the second wall structure 20. Depending on the connection part of the reinforcing member 300, mounting structure 40 can be the first wall structure 10 or the second wall structure 20.

[0208] The fixing structure 30 refers to the structure on the cabinet 100 used to provide an installation base for the reinforcing member 300. The fixing structure 30 may include hooks, hanging shafts or other structures. The fixing structure 30 is set on the mounting structure 40. Depending on the connection part of the reinforcing member 300 and the position of the mounting structure 40, the fixing structure 30 may be set on the first wall structure 10 or on the second wall structure 20. The material of the fixing structure 30 may include metal, plastic or other materials.

[0209] Shaft 31 refers to the structure in the fixing structure 30 used for mounting the reinforcing member 300. Shaft 31 can be a prism-shaped structure, a cylindrical structure, or a columnar structure of other shapes. The material of shaft 31 can include metal, plastic, or other materials.

[0210] The shaft 31 is configured to be movable relative to the mounting structure 40 and extend partially beyond the mounting structure 40. That is, the shaft 31 can be movable relative to the mounting structure 40, and a part of the shaft 31 can extend beyond the mounting structure 40 for connection with the reinforcement 300, while another part of the shaft 31 can be located within the mounting structure 40. The shaft 31 can be movable relative to the mounting structure 40, and at this time, the shaft 31 can also be retracted into the mounting structure 40 to reduce space occupation.

[0211] When the shaft 31 is configured to be movable relative to the mounting structure 40, through holes, channels 41, cavities or other structures may be provided on the mounting structure 40 to accommodate the shaft 31 and allow the shaft 31 to extend beyond the mounting structure 40.

[0212] The shaft 31 and the reinforcing member 300 are detachably connected. The shaft 31 and the reinforcing member 300 can be detachably connected by a snap, hook or other structure. For example, one end of the reinforcing member 300 is provided with a lasso, which can be sleeved on the shaft 31 to realize the connection between the reinforcing member 300 and the shaft 31.

[0213] When the reinforcing member 300 is connected to the shaft 31, a portion of the shaft 31 can extend beyond the mounting structure 40 to connect with the reinforcing member 300; when the reinforcing member 300 is detached from the shaft 31, the shaft 31 can be retracted into the mounting structure 40 to reduce space occupation.

[0214] In this embodiment, a fixing structure 30 is provided on the cabinet 100, and the shaft 31 of the fixing structure 30 is movable relative to the cabinet 100 to extend out of the cabinet 100 or retract into the mounting structure 40 of the cabinet 100, thereby facilitating the detachable connection of the reinforcing member 300 to the shaft 31; when the reinforcing member 300 is removed, this arrangement can also retract the shaft 31 into the mounting structure 40 to reduce space occupation.

[0215] refer to Figure 3 , Figure 14 , Figure 15 In some embodiments, the mounting structure 40 is provided with a channel 41, one end of which is connected to a space outside the mounting structure 40. The shaft 31 is slidably disposed in the channel 41 to extend or retract into the channel 41. The fixing structure 30 also includes a limiting part 32, which is connected to the end of the shaft 31 facing away from the mounting structure 40 and is located outside the channel 41. In the direction of movement perpendicular to the shaft 31, the maximum size of the limiting part 32 is greater than the maximum size of the channel 41.

[0216] The channel 41 refers to the spatial structure set on the mounting structure 40. The cross-sectional shape of the channel 41 can be square, circular or other shapes. The shape of the channel 41 can be the same as the shape of the shaft 31 to adapt to it, or the shape of the channel 41 can be different from the shape of the shaft 31. One end of the channel 41 is connected to the space outside the mounting structure 40 so that a part of the shaft 31 can extend outside the channel 41 and connect with the reinforcing member 300. Depending on the position of the reinforcing member 300, the space outside the mounting structure 40 can be the accommodating space 101 or the space outside the cabinet 100.

[0217] The shaft 31 is slidably disposed within the channel 41, that is, the shaft 31 can slide relative to the channel 41 to be retracted into the channel 41 or extended outside the channel 41.

[0218] The limiting part 32 refers to the structure in the fixing structure 30 used to limit the position of the shaft 31. The limiting part 32 is connected to the shaft 31. The limiting part 32 can be connected to the shaft 31 by bonding, welding, screwing, snapping or other means. The limiting part 32 can also be integrally formed with the shaft 31. The material of the limiting part 32 can include metal, plastic or other materials.

[0219] The maximum dimension of the limiting part 32 in the direction of movement perpendicular to the shaft 31 is greater than the maximum dimension of the channel 41. The limiting part 32 can be a circular plate structure, and the cross-sectional area of ​​the limiting part 32 is greater than the cross-sectional area of ​​the channel 41. The limiting part 32 can also be a strip structure or other shapes, and the maximum dimension of the limiting part 32 is greater than the maximum dimension of the channel 41, so that the limiting part 32 is difficult to enter the channel 41.

[0220] The limiting part 32 is connected to the end of the shaft 31 facing away from the mounting structure 40, and the limiting part 32 is located outside the channel 41. The maximum dimension of the limiting part 32 in the direction of movement perpendicular to the shaft 31 is greater than the maximum dimension of the channel 41, so that the limiting part 32 is difficult to enter the channel 41, thereby preventing the shaft 31 from completely entering the channel 41, so that the staff can easily pull the shaft 31 out of the channel 41.

[0221] In this embodiment, a channel 41 is provided on the cabinet 100 to allow the shaft 31 to extend or retract into the cabinet 100; a limiting part 32 is provided to prevent the shaft 31 from being completely retracted into the channel 41, thereby facilitating operation by staff.

[0222] refer to Figure 3 , Figure 16 In some embodiments, the mounting structure 40 is further provided with a first stop 51, which is located on one side of the channel 41. At least a portion of the first stop 51 is spaced apart from the mounting structure 40 to form a blocking space. The limiting part 32 is further provided with a first limiting part 321, which can rotate around the axial direction of the shaft 31 so that the first limiting part 321 can enter or exit the blocking space.

[0223] The first stop 51 refers to the structure on the cabinet 100 used to restrict the movement of the limiting part 32. The first stop 51 can be a plate-shaped structure, a column-shaped structure, or other shaped structural components. The first stop 51 is connected to the mounting structure 40. The first stop 51 can be connected to the mounting structure 40 by welding, bonding, screwing, snapping, or other means. The material of the first stop 51 can include metal, plastic, or other materials.

[0224] At least a portion of the first stop member 51 is spaced apart from the mounting structure 40, that is, the first stop member 51 may be spaced apart from the mounting structure 40 only partially, and the other part of the first stop member 51 may be directly connected to the mounting structure 40; the first stop member 51 may also be spaced apart from the mounting structure 40 as a whole, and connected to the mounting structure 40 through an intermediate structure.

[0225] When at least a portion of the first stop 51 is spaced apart from the mounting structure 40, the stopping space is the space between the first stop 51 and the mounting structure 40.

[0226] The first limiting part 321 refers to a part of the structure of the limiting part 32. The first limiting part 321 can be a square, circular, ring or other shaped structural component that protrudes from the limiting part 32. The first limiting part 321 can be connected to the limiting part 32 by bonding, welding, screwing, snapping or other means. The first limiting part 321 can also be integrally formed with the limiting part 32. The material of the first limiting part 321 can include metal, plastic or other materials.

[0227] The limiting part 32 can rotate around the axis of the shaft 31. The limiting part 32 can be movably sleeved on the shaft 31. At this time, the limiting part 32 can rotate independently. The limiting part 32 can be fixedly connected to the shaft 31. At this time, the limiting part 32 can drive the shaft 31 to rotate together. The rotation of the limiting part 32 around the shaft 31 can drive the first limiting part 321 to rotate synchronously, so as to drive the first limiting part 321 into or out of the blocking space.

[0228] The first limiting part 321 can enter the blocking space. At this time, the first blocking member 51 can prevent the first limiting part 321 from moving away from the mounting structure 40, thereby preventing the shaft 31 from moving out of the channel 41. The first limiting part 321 can also exit the blocking space. At this time, the shaft 31 can move out of the channel 41 to extend out of the channel 41 and be connected to the reinforcing member 300.

[0229] For example, the limiting part 32 is a circular plate-shaped structure, the shaft 31 is a cylindrical structure, and the channel 41 is a circular channel 41. The limiting part 32 is fixedly connected to the shaft 31, and the rotation of the limiting part 32 can drive the shaft 31 to rotate synchronously. The first limiting part 321 is a fan-shaped ring structure and is sleeved on the limiting part 32 to form a notch on one side of the periphery of the limiting part 32. When the notch corresponds to the first stop 51, the first limiting part 321 completely exits the stop space, and at this time the shaft 31 can move out of the channel 41.

[0230] When the reinforcement 300 needs to be installed on the cabinet 100, the limiting part 32 can be rotated to make the first limiting part 321 exit the blocking space, and then the limiting part 32 can be pulled away from the mounting structure 40 to pull out the shaft 31, thereby facilitating the installation of the reinforcement 300. When the reinforcement 300 does not need to be installed on the cabinet 100, the limiting part 32 can be pushed to push the shaft 31 into the channel 41 and make the limiting part 32 abut against the mounting structure 40, and then the limiting part 32 can be rotated to make the first limiting part 321 enter the blocking space, thereby preventing the first limiting part 321 from moving away from the mounting structure 40 by the first stop 51, and preventing the shaft 31 from exiting the channel 41.

[0231] In this embodiment, a first stop 51 is provided, and a blocking space is provided between the first stop 51 and the cabinet 100; the limiting part 32 can rotate around the axis of the shaft 31 so that the limiting part 32 can enter the blocking space and the first stop 51 can prevent the shaft 31 from extending outside the channel 41, and the limiting part 32 can also exit the blocking space so that the shaft 31 can extend outside the channel 41.

[0232] In some embodiments, the limiting portion 32 is detachably connected to the first stop member 51.

[0233] The limiting part 32 is detachably connected to the first stop member 51. The limiting part 32 can be detachably connected to the first stop member 51 by screwing, snapping or other means.

[0234] For example, the limiting part 32 is connected to the first stop 51 by a strap.

[0235] The limiting part 32 is detachably connected to the first stop member 51, thereby preventing the rotation of the limiting part 32 and reducing the risk that the first limiting part 321 will exit the stop space due to accidental rotation of the limiting part 32 in the event of vibration, movement or other conditions of the energy storage device 1000. At the same time, this setting can also prevent the limiting part 32 from moving away from the mounting structure 40, thereby preventing the shaft 31 from exiting the channel 41.

[0236] In this embodiment, the limiting part 32 is detachably connected to the first stop member 51, thereby reducing the risk that the limiting part 32 may accidentally rotate and exit the stop space under external environment, vibration or other conditions.

[0237] refer to Figure 3 , Figure 17 In some embodiments, the cabinet 100 is further provided with a second stop 52, which is detachably connected to the mounting structure 40; at least a portion of the second stop 52 extends to the side of the limiting portion 32 away from the mounting structure 40 and presses the limiting portion 32 against the mounting structure 40.

[0238] The second stop 52 refers to the structure on the cabinet 100 used to restrict the movement of the limiting part 32. The second stop 52 can be a plate-shaped structure, a column-shaped structure, or other shaped structural components. The second stop 52 is detachably connected to the mounting structure 40. The second stop 52 can be detachably connected to the mounting structure 40 by screwing, snap-fitting, or other means. The second stop 52 can be directly connected to the mounting structure 40, or it can be indirectly connected to the mounting structure 40 through an intermediate structure. The material of the second stop 52 can include metal, plastic, or other materials.

[0239] At least a portion of the second stop 52 extends to the side of the limiting portion 32 away from the mounting structure 40, so that the second stop 52 can press the limiting portion 32 against the mounting structure 40, thereby preventing the limiting portion 32 from moving away from the mounting structure 40, and thus preventing the shaft 31 from exiting the channel 41.

[0240] For example, the second stop 52 is a bolt, which includes a screw and a head connected to the bolt. The mounting structure 40 is provided with a threaded hole, and the screw is threadedly matched with the threaded hole. The end of the screw away from the head is detachably connected to the mounting structure 40, while the head is located on the side of the limiting part 32 away from the mounting structure 40, and the head presses the limiting part 32 against the mounting structure 40.

[0241] In this embodiment, a second stop 52 is provided so that the second stop 52 is detachably connected to the cabinet 100 and can press the limiting part 32 against the cabinet 100, thereby preventing the shaft 31 from extending beyond the channel 41.

[0242] In some embodiments, the reinforcing member 300 is a length-adjustable structural member.

[0243] The reinforcing member 300 is a length-adjustable structural member. In this case, the reinforcing member 300 may include an electric telescopic rod, a screw-type telescopic rod, a hydraulic telescopic rod, a multi-section splicing rod, or other types of length-adjustable structural members.

[0244] The reinforcing member 300 is made into a structural member with an adjustable length so that it can adapt to different installation positions. At the same time, after the reinforcing member 300 is installed and fixed, it is also convenient to adjust the tensile force applied to the first wall structure 10 by adjusting the length of the reinforcing member 300, thereby facilitating the adjustment of the ability to suppress the deformation of the first wall structure 10.

[0245] In this embodiment, the reinforcing member 300 is a structural member with an adjustable length, so that the force applied to the first wall structure 10 can be adjusted by adjusting the length of the reinforcing member 300, thereby making it easier to better suppress the deformation of the first wall structure 10.

[0246] refer to Figure 18 In some embodiments, the reinforcement 300 includes a first fixing part 61 and an adjusting part 62 connected to the first fixing part 61. The first fixing part 61 is connected to one of the first wall structure 10 or the second wall structure 20, and the adjusting part 62 is connected to the other of the first wall structure 10 or the second wall structure 20. The adjusting part 62 is configured to be able to adjust its own length.

[0247] The first fixing part 61 refers to the structure in the reinforcing member 300 used to connect with the first wall structure 10 or the second wall structure 20. The first fixing part 61 may include rigid structural members, such as buckles, pull rods, etc., or flexible structural members, such as ropes, etc. The material of the first fixing part 61 may include metal, plastic or other materials.

[0248] The adjusting part 62 refers to the structure in the reinforcing member 300 that can adjust its own length. The adjusting part 62 may include a screw structure, a hydraulic telescopic structure, an electric telescopic structure, etc. The adjusting part 62 is connected to the first fixing part 61. The adjusting part 62 can be connected to the first fixing part 61 by welding, bonding, screwing, snapping or other means. The adjusting part 62 is also connected to the second wall structure 20 or the first wall structure 10 that is not connected to the first fixing part 61. The adjusting part 62 can be directly connected to the corresponding first wall structure 10 or second wall structure 20, or it can be indirectly connected to the first wall structure 10 or second wall structure 20 through an intermediate structure.

[0249] For example, the first fixing part 61 includes a steel wire rope and a sling formed by the steel wire rope, and the adjusting part 62 includes a basket tensioner.

[0250] This embodiment provides some specific structures of the reinforcing member 300, and provides an adjustment part 62 to adjust the length of the reinforcing member 300 so that the reinforcing member 300 can adapt to different installation positions; at the same time, after the reinforcing member 300 is installed and fixed, it is also convenient to adjust the tensile force applied to the first wall structure 10 by adjusting the length of the reinforcing member 300, thereby facilitating the adjustment of the ability to suppress the deformation of the first wall structure 10.

[0251] refer to Figure 18 In some embodiments, the reinforcing member 300 further includes a second fixing part 63, which is connected to one end of the first fixing part 61 away from the adjusting part 62, and the other end of the second fixing part 63 away from the adjusting part 62 is connected to the corresponding first wall structure 10 or second wall structure 20.

[0252] The second fixing part 63 refers to the portion of the reinforcing member 300 used to connect with the first wall structure 10 or the second wall structure 20. The first fixing part 61 and the second fixing part 63 are respectively provided on both sides of the adjusting part 62 to connect to the first wall structure 10 and the second wall structure 20 respectively. The second fixing part 63 may include rigid structural components, such as buckles, pull rods, etc., or it may include flexible structural components, such as ropes. The second fixing part 63 is connected to the adjusting part 62. The second fixing part 63 can be connected to the adjusting part 62 by welding, bonding, screwing, snapping or other means. The material of the first fixing part 61 may include metal, plastic or other materials.

[0253] For example, the second fixing part 63 includes a wire rope and a lasso formed by the wire rope.

[0254] This embodiment provides a specific structure of some reinforcing members 300, and provides a second fixing part 63 so as to be connected to the first wall structure 10 and the second wall structure 20 respectively through the first fixing part 61 and the second fixing part 63.

[0255] In some embodiments, the energy storage device 1000 includes a cabinet 100, a battery device 200, and a reinforcing member 300.

[0256] The cabinet 100 has a storage space 101, in which the battery device 200 is housed.

[0257] The cabinet 100 includes a first wall structure 10 and a second wall structure 20. The first wall structure 10 is located at the bottom of the cabinet 100 and serves as the bottom wall structure of the cabinet 100. The second wall structure 20 is located on the periphery of the cabinet 100 and is the smaller side wall structure among the side wall structures of the cabinet 100. There are two second wall structures 20, which are two smaller side wall structures of the cabinet 100.

[0258] The first wall structure 10 has a first beam 11 and a second beam 12. The first beam 11 is the bottom long side beam of the cabinet 100, and the second beam 12 is the bottom short side beam of the cabinet 100. The second wall structure 20 has a third beam 21, which is the top short side beam of the cabinet 100.

[0259] There are four reinforcing members 300. One end of two reinforcing members 300 is connected to the middle of the same first beam 11, and the other end of the two reinforcing members 300 is connected to the ends of the two third beams 21 respectively. The two reinforcing members 300 are located on the same side of the cabinet 100. One end of the other two reinforcing members 300 is connected to the middle of another first beam 11, and the other end of the other two reinforcing members 300 is connected to the other ends of the two third beams 21 respectively. The two reinforcing members 300 are located on the other side of the cabinet 100 respectively.

[0260] The end of the third beam 21 is connected to the vertical beam of the cabinet 100, and the connection forms the corner of the cabinet 100; the corner is a prism-shaped structure with an internal cavity, and multiple through holes are provided on the corner; the end of the reinforcing member 300 connected to the third part is connected to the corner through a structure such as a lock and a hook.

[0261] A passage 41 is provided in the middle of the first beam 11, and a first stop 51 is provided on one side of the passage 41. The first stop 51 is connected to the first beam 11, and a portion of the first stop 51 is spaced apart from the first beam 11, forming a stopping space between the first stop 51 and the first beam 11.

[0262] The channel 41 is a cylindrical straight structure, and one end of the channel 41 is connected to the space outside the cabinet 100. A shaft 31 is slidably connected inside the channel 41. The shaft 31 is a cylindrical structure, and the end of the shaft 31 facing outside the cabinet 100 is connected to a limiting part 32. The limiting part 32 is a circular plate structure with a diameter larger than that of the channel 41. A first limiting part 321 is provided around the limiting part 32. The limiting part 32 can drive the shaft 31 to rotate around its axis, so as to drive the first limiting part 321 into or out of the blocking space.

[0263] Secondly, embodiments of this application also provide an electrical device, including the energy storage device 1000 provided in some embodiments of the first aspect.

[0264] For example, the electrical device can be a ship, and the energy storage device 1000 can supply power to the electrical devices in the ship; when the energy storage device 1000 needs to be charged or after charging is completed, the energy storage device 1000 needs to be hoisted to the charging area or power supply area. Under the action of the reinforcing member 300, the first wall structure 10 is not easily deformed during the hoisting process of the energy storage device 1000.

[0265] Thirdly, refer to Figure 19 This application also provides an energy storage system, including the energy storage device 1000 provided in some embodiments of the first aspect.

[0266] The energy storage system also includes a power conversion device 2000, which is used to electrically connect the power generation device 3000 and the energy storage device 1000. The power conversion device 2000 may be located inside the housing space 101 of the energy storage device 1000 or outside the housing space 101 of the energy storage device 1000.

[0267] For example, an energy storage system may include one or more energy storage devices 1000 and a power conversion system (PCS) 2000, which is connected between the power generation equipment and the energy storage devices 1000. The power generation equipment generates electrical energy, which can be stored in the energy storage devices 1000 via the power conversion system 2000. As an example, the power generation equipment may specifically be a solar panel, a hydroelectric power generation device, a thermal power generation device, a wind power generation device, etc. The specific type of power generation equipment is not limited in this application.

[0268] Fourthly, refer to Figure 20 This application also provides a charging network, including an energy storage device 1000 provided in some embodiments of the first aspect, or an energy storage system provided in some embodiments of the third aspect; the charging network also includes a charging pile 4000, and the energy storage device 1000 is used to provide power to the charging pile 4000.

[0269] The charging pile 4000 is electrically connected to the energy storage device 1000, which provides power to the charging pile 4000. The charging pile 4000 is also electrically connected to the battery device 200 within the energy storage device 1000 via a cable, allowing the battery device 200 to supply its stored electrical energy to the charging pile 4000. The charging pile 4000 has one or more connectors 5000 for connecting to electrical equipment (such as vehicles) to replenish power to the equipment.

[0270] The energy storage device 1000 can be located inside the charging pile 4000 (e.g., an integrated energy storage and charging unit) or outside the charging pile 4000.

[0271] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy storage device, characterized in that, include: A cabinet having a receiving space, the cabinet including a first wall structure and a second wall structure for enclosing the receiving space, the first wall structure being located below the receiving space along the height direction of the cabinet, and the second wall structure being located on different sides of the receiving space from the first wall structure; The battery assembly is housed within the housing space; A reinforcing member, one end of which is connected to the first wall structure and the other end of which is connected to the second wall structure, with the two ends of the reinforcing member spaced apart in the height direction of the cabinet; The first wall structure includes a first beam, the first beam includes a connecting portion, and the reinforcing member is connected to the connecting portion; Along the length of the first beam, the ratio of the length of the connecting portion to the length of the first beam is less than or equal to 0.4, and the connecting portion is located in the middle of the first beam.

2. The energy storage device according to claim 1, characterized in that, The first wall structure also includes a second beam connected to the first beam. The length direction of the first beam, the length direction of the second beam, and the height direction of the cabinet are perpendicular to each other. The length of the first beam is greater than the length of the second beam. The orthographic projection of the reinforcing member onto the first wall structure is parallel to the length direction of the first beam.

3. The energy storage device according to claim 2, characterized in that, The second wall structure includes a third beam, one end of the reinforcing member is connected to the first beam, and the other end of the reinforcing member away from the first wall structure is connected to the third beam.

4. The energy storage device according to claim 3, characterized in that, The length direction of the third beam is perpendicular to the height direction of the cabinet, or... The length of the third beam is parallel to the height of the cabinet.

5. The energy storage device according to claim 3 or 4, characterized in that, The second wall structure is connected to the first wall structure and is connected to the second beam, and the third beam is connected to the second beam and is perpendicular to the second beam.

6. The energy storage device according to claim 3 or 4, characterized in that, The second wall structure and the first wall structure are located on both sides of the accommodating space along the height direction of the cabinet, and the length direction of the third beam is parallel to the length direction of the first beam.

7. The energy storage device according to claim 3, characterized in that, The second beam is located at the edge of the first wall structure; The third beam is located at the edge of the second wall structure, the length direction of the third beam is parallel to the length direction of the second beam, and the orthographic projection of the third beam along the height direction of the cabinet overlaps with the second beam.

8. The energy storage device according to claim 2, characterized in that, The second wall structure includes a fourth beam, which is located at the edge of the second wall structure. The second beam is located at the edge of the first wall structure. The length direction of the fourth beam is parallel to the length direction of the second beam. The orthographic projection of the fourth beam along the height direction of the cabinet overlaps with the second beam. The ratio of the distance between the connection point of the reinforcing member and the second wall structure and the adjacent fourth beam to the dimension of the second wall structure in the corresponding direction is less than or equal to 0.

4.

9. The energy storage device according to claim 1, characterized in that, Along the length of the first beam, the ratio of the length of the connecting portion to the length of the first beam is less than or equal to 0.

3.

10. The energy storage device according to claim 1, characterized in that, Along the length of the first beam, the ratio of the length of the connecting portion to the length of the first beam is less than or equal to 0.

2.

11. The energy storage device according to claim 1, characterized in that, The reinforcing member is located on the side of the cabinet opposite to the accommodating space; or, The reinforcing member is located within the accommodating space.

12. The energy storage device according to claim 1, characterized in that, The reinforcing member is detachably connected to the first wall structure; and / or The reinforcing member is detachably connected to the second wall structure.

13. The energy storage device according to claim 12, characterized in that, The cabinet also includes a mounting structure, on which a fixing structure is provided. The fixing structure includes a shaft, which is configured to be movable relative to the mounting structure and extend partially beyond the mounting structure. The shaft is detachably connected to the reinforcing member.

14. The energy storage device according to claim 13, characterized in that, The mounting structure is provided with a channel, one end of which is connected to a space outside the mounting structure. The shaft is slidably disposed in the channel to extend or retract into the channel. The fixing structure further includes a limiting part, which is connected to the end of the shaft facing outward from the mounting structure, and the limiting part is located outside the channel; In the direction of movement perpendicular to the axis, the maximum size of the limiting part is greater than the maximum size of the channel.

15. The energy storage device according to claim 14, characterized in that, The mounting structure is further provided with a first stop, which is located on one side of the channel. At least a portion of the first stop is spaced apart from the mounting structure to form a stopping space. The limiting part is further provided with a first limiting part, which can rotate around the axial direction of the shaft so that the first limiting part can enter or exit the blocking space.

16. The energy storage device according to claim 15, characterized in that, The limiting part is detachably connected to the first stop.

17. The energy storage device according to claim 14, characterized in that, The cabinet is also provided with a second stop, which is detachably connected to the mounting structure. At least a portion of the second stop extends to the side of the limiting portion away from the mounting structure and presses the limiting portion into the mounting structure.

18. The energy storage device according to claim 1, characterized in that, The reinforcing member is a length-adjustable structural component.

19. The energy storage device according to claim 18, characterized in that, The reinforcing member includes a first fixing part and an adjusting part connected to the first fixing part. The first fixing part is connected to one of the first wall structure or the second wall structure, and the adjusting part is connected to the other of the first wall structure or the second wall structure. The adjustment section is configured to adjust its own length.

20. The energy storage device according to claim 19, characterized in that, The reinforcing member further includes a second fixing part, which is connected to the end of the first fixing part away from the adjusting part, and the end of the second fixing part away from the adjusting part is connected to the corresponding first wall structure or the second wall structure.

21. An electrical appliance, characterized in that, Includes the energy storage device as described in any one of claims 1-20.

22. An energy storage system, characterized in that, Includes the energy storage device as described in any one of claims 1-20; The energy storage system also includes a power conversion device connected to the energy storage device to convert the current input to or output from the energy storage device into energy.

23. A charging network, characterized in that, Includes the energy storage device as described in any one of claims 1-20, or the energy storage system as described in claim 22; The charging network also includes charging piles, and the energy storage device is used to provide power to the charging piles.

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