Frame, connecting beam, energy storage device and charging network

Abstract

The embodiment of the utility model discloses a frame, a connecting beam, an energy storage device and a charging network, and relates to the field of machining. The frame comprises a plurality of connecting beams and a plurality of connector assemblies, the connecting beams extend in the first direction, each connecting beam comprises two connecting parts oppositely arranged in the first direction, each connecting beam comprises at least one inner wall located in the frame, and a first wall in the at least one inner wall comprises a plurality of first through holes; the connector assembly comprises three plug parts which are perpendicular to one another. Wherein each connecting part is connected with one plug part to form a frame. According to the frame, the practicability of the frame can be improved, and the problems that the frame assembly cost and time are low and the part universality is low are solved.

Description

[0001] This application claims priority to PCT patent application PCT / CN2024 / 135280, filed November 28, 2024, entitled “Frame, Frame Manufacturing Method, Connector Assembly, Energy Storage Device, Energy Storage System and Charging Network”, and PCT / CN2024 / 135295, filed November 28, 2024, entitled “Frame, Frame Manufacturing Method, Connector Assembly, Energy Storage Device, Energy Storage System and Charging Network”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of machining, and more specifically, to a frame, connecting beam, energy storage device, and charging network. Background Technology

[0003] Energy storage devices include a frame, which provides support for the device. The molding and transportation of the frame are crucial factors affecting the molding and transportation of the energy storage device's casing. Traditional frame structures are often complex in their connection methods, requiring numerous auxiliary connectors. The increased variety and quantity of parts increase assembly costs and time, and the low versatility of the parts further reduces the frame's practicality. Therefore, developing a frame structure that is simple, highly practical, and easy to assemble is of significant practical importance. Utility Model Content

[0004] This application provides a frame, connecting beams, energy storage device, and charging network, which can improve the practicality of the frame and address the problems of low assembly cost and time, as well as low parts versatility.

[0005] In a first aspect, this application provides a frame comprising: a plurality of connecting beams extending along a first direction, each connecting beam including two connecting portions disposed opposite each other along the first direction, each connecting beam including at least one inner wall located inside the frame, the first wall of the at least one inner wall including a plurality of first through holes; a plurality of connector assemblies including three mutually perpendicular plug portions; wherein each connecting portion is connected to one plug portion to form the frame.

[0006] In the technical solution of this application embodiment, the frame is composed of multiple structurally identical connecting beams and multiple structurally identical joint assemblies. The frame is formed by connecting each plug part to each connecting part in the same way, simplifying the frame assembly process. The frame includes only two types of parts; the parts have simple and identical structures and uniform connection methods, making the entire frame manufacturing process more efficient and orderly, improving production efficiency and shortening the production cycle. Furthermore, when the frame needs to be moved or transported, the connecting beams and joint assemblies can be transported separately, reducing transportation difficulty and minimizing damage to the frame during transport. Because the parts are simple and identical, their versatility is higher, and they are easier to replace. The inner wall of the connecting beams can increase the frame's mounting surface. Installation is achieved through the first through hole in the inner wall, allowing for further improvement of the frame's internal structure and functional expansion. Different functional modules can be integrated into the frame system to meet diverse usage needs, giving the frame more practical functions.

[0007] In some embodiments of the first aspect, a plurality of first through holes are arranged along a first direction; wherein at least one inner wall includes two inner walls perpendicular to each other, and the connecting beam further includes a first boss extending along the first direction outside the first wall, the first boss being located on the same side of the plurality of first through holes.

[0008] In some embodiments, the first boss is located outside the first wall and on the same side of the plurality of first through holes, which can protect the area of ​​the first through holes. When the component installed through the first through holes bears a large load, the first boss can act as a local reinforcing structure to share some of the stress and prevent the material around the through holes from deforming, cracking, or being damaged due to excessive force. The first boss can also limit the excessive displacement of the components installed on the inner wall on the connecting beam, preventing the connector from loosening or coming off due to vibration, external impact, or other factors, thus making the connection more stable.

[0009] In some embodiments of the first aspect, the connecting beam includes two mutually perpendicular outer walls located outside the frame, the second wall of which includes a plurality of second through holes.

[0010] In some embodiments, the mutually perpendicular outer walls can provide lateral support to the frame in different directions, enhancing the frame's ability to resist external forces from different directions, preventing local deformation or torsion of the frame, and maintaining the overall geometry and structural stability of the frame. The second through hole provides a convenient mounting point for connecting the beam to other components.

[0011] In some embodiments of the first aspect, a plurality of second through holes are arranged along a first direction; wherein the connecting beam further includes a second boss extending along the first direction outside the second wall, the second boss being located on the same side of the plurality of second through holes.

[0012] In some embodiments, the second boss has a waterproof function because its height is higher than the plane where the second through hole is located. In some application scenarios where water may come into contact with the surface, the second boss can effectively prevent water from flowing along the second wall of the connecting beam into the second through hole and the interior of the frame.

[0013] In some embodiments of the first aspect, the number of the plurality of first through holes is greater than the number of the plurality of second through holes.

[0014] In some embodiments, the difference in the number of first through holes and second through holes can meet different functional requirements. Multiple first through holes on the first wall can be used to install some internal functional components, and a larger number of through holes increases the flexibility of the internal layout of the frame. Second through holes on the second wall can be used for external connections; a relatively small number is sufficient to meet its functional requirements, while avoiding excessive through holes from negatively impacting the strength of the external wall.

[0015] In some embodiments of the first aspect, the frame includes a skin disposed on the outside of the frame, the skin being fixed to the frame by bolts to the second through hole.

[0016] In some embodiments, a skin is installed on the outside of the frame. This skin serves as an external protective layer, effectively preventing damage to the frame from external physical impacts, chemical corrosion, moisture erosion, and other adverse factors. The skin is fixed to the frame using bolts, forming a stable bond between the skin and the frame. Bolting is relatively simple and easy, requiring no complex specialized equipment or processes. When the skin needs repair, replacement, or internal frame inspection, the bolted connection facilitates easy disassembly of the skin without damaging the frame structure.

[0017] In some embodiments of the first aspect, the frame includes a first sealing strip located between the second wall and the skin; wherein the projection of the first sealing strip along the thickness direction of the second wall does not overlap with the projection of the second boss along the thickness direction of the second wall, and the first sealing strip is perforated at a plurality of second through holes.

[0018] In some embodiments, by reasonably setting the layout relationship between the first sealing strip, the second boss and the second through hole, external dust, moisture, impurities and other contaminants are effectively prevented from entering the frame, improving the sealing performance of the frame structure, providing a relatively clean, dry and stable working environment for the components inside the frame, extending the service life of the internal components and reducing the probability of failure caused by environmental factors.

[0019] In some embodiments of the first aspect, the thickness of the first sealing strip located between the skin and the second wall is the same as the height of the second boss.

[0020] In some embodiments, the thickness of the first sealing strip and the height of the second protrusion are the same, filling part of the space between the skin and the second wall. During long-term use, even if affected by external factors such as vibration and temperature changes, the first sealing strip is not prone to sealing failure due to excessive local compression or loosening.

[0021] In some embodiments of the first aspect, the ratio of the thickness dimension of the first sealing strip located between the skin and the second wall to the thickness dimension of the first sealing strip is greater than or equal to 0.5 and less than or equal to 0.6.

[0022] In some embodiments, this compression ratio range ensures that the first sealing strip has stable mechanical properties within the frame structure. When subjected to external forces, the first sealing strip can provide cushioning and shock absorption to a certain extent, without affecting its sealing function and the overall stability of the frame due to excessive deformation.

[0023] In some embodiments of the first aspect, the connecting beam includes two outer walls and two inner walls, the two outer walls and the two inner walls being perpendicular to each other, each of the two inner walls including a first boss on both sides, and each of the two outer walls including a second boss on the side connecting to each inner wall.

[0024] In some embodiments, each outer wall and each inner wall connection includes a second boss on the side that provides more comprehensive sealing and waterproofing, preventing water, dust, and other external substances from entering the frame, protecting the internal components from corrosion, and extending their service life. Furthermore, the second boss can enhance the structural performance of the connection, increasing its strength and rigidity, enabling it to better withstand external forces.

[0025] In some embodiments of the first aspect, the frame includes a first rivet nut disposed in a first through hole and / or a second rivet nut disposed in a second through hole; wherein the flange section height of the first rivet nut is the same as the height of the first boss, and the flange section height of the second rivet nut is the same as the height of the first boss.

[0026] In some embodiments, rivet nuts are used for installation, enhancing the sealing performance of the frame. Consistent boss height reduces the possibility of excess space in the frame and improves its stability, providing operators with a more convenient installation experience and facilitating the subsequent installation of other frame components. Furthermore, the frame achieves a more uniform stress distribution when subjected to external forces, effectively avoiding stress concentration and significantly enhancing the strength and stability of the connecting beams and the entire frame structure.

[0027] In some embodiments of the first aspect, the connector assembly includes three identical interconnected connectors, each connector including a connector portion and a plug portion, the three connector portions being interconnected to form the connector assembly.

[0028] In some embodiments, the joint assembly has a simple structure, is easy to install and operate, saves installation time, and reduces construction costs. The three joints are structurally identical, ensuring high versatility. The connection of the three joints and the tight fit between the plug and the connecting beam enable the joint assembly to effectively transmit and distribute various external forces borne by the frame, significantly enhancing the overall stability and safety of the frame structure.

[0029] In some embodiments of the first aspect, the connector includes a first sub-part and a second sub-part perpendicular to each other, the outer surface of the first sub-part being recessed with a countersunk, and at least a portion of the second sub-part of one connector assembly is embedded in the countersunk of the other connector, such that the outer surfaces of the interconnected first sub-part and the outer surfaces of the second sub-part are flush.

[0030] In some embodiments, after the three joint portions are interconnected, the mutually perpendicular first and second sub-parts can form three mutually perpendicular planes, allowing the joint assembly to form a continuous surface with the connecting beam. At least a portion of the second sub-part can be embedded into the countersunk platform, so that the connection position can be structurally abutted against the countersunk platform through the second sub-part, thereby giving the joint portion a certain ability to resist external forces such as shear force at the connection position and reducing the probability of relative displacement of the joint portion.

[0031] In some embodiments of the first aspect, the first sub-part has a first connecting hole on its recessed platform, and the second sub-part has a second connecting hole. The first connecting hole and the second connecting hole are connected and engaged to connect the first sub-part and the second sub-part.

[0032] In some embodiments, a first connecting hole is provided on the recessed platform of the first sub-part, and a second connecting hole is correspondingly provided on the second sub-part, so that the first connecting hole and the second connecting hole can be precisely connected and fitted, thereby achieving a stable connection between the first sub-part and the second sub-part, and the connection structure is simple and easy to operate.

[0033] In some embodiments of the first aspect, the connector portion further has a first wedge surface and a second wedge surface, wherein the first wedge surface of one connector portion in the connector assembly abuts against the second wedge surface of the other connector portion.

[0034] In some embodiments, the joint assembly, as a connecting component within the frame, affects the overall stability of the frame. The abutment of the first and second wedge surfaces makes the connection between the joint parts tighter and more stable, thereby more effectively transmitting and dispersing forces when the frame is subjected to external forces. The wedge-face abutment connection method helps improve the assembly accuracy and reliability of the frame. During the frame assembly process, due to the guiding effect of the wedge surfaces, the joint parts can be more accurately positioned and fitted together, reducing structural deviations caused by installation errors.

[0035] In some embodiments of the first aspect, the plane containing the first wedge surface and the plane containing the second wedge surface have a first included angle of 120°.

[0036] In some embodiments, the plane containing the first wedge surface has a 120° angle with the plane containing the second wedge surface, allowing the three identical joints to be connected in pairs to form a joint assembly. This creates a 360° closed, mutually supporting wedge-face abutment structure, enabling the effective transmission and dispersion of force among the three interconnected joints. The three joints have essentially the same structural design, allowing three identical connecting beams to be connected via these joints. Furthermore, the joints can be assembled in any order, and can be produced and assembled as standard components, thus improving the overall forming efficiency of the frame.

[0037] In some embodiments of the first aspect, the first wedge surface includes a groove, the second wedge surface includes a protrusion, and the protrusion of one connector portion of the connector assembly is sealed and engaged with the groove of the other connector portion.

[0038] In some embodiments, a groove and a protrusion are provided between the abutting first and second wedge surfaces to adapt and engage. The interlocking structure can increase the misalignment shear strength between the abutting first and second wedge surfaces, thereby improving the connection strength.

[0039] In some embodiments of the first aspect, the joints of the three connectors of the connector assembly are coated with sealant.

[0040] In some embodiments, the sealant can prevent external gases and liquids from entering the interior of the joint assembly. By filling the tiny pores at the joint, the sealant forms a continuous, airtight, and watertight barrier, effectively preventing the intrusion of harmful substances such as moisture, oxygen, and corrosive gases, protecting the structural integrity of the joint's interior, and extending the service life of the joint assembly.

[0041] In some embodiments of the first aspect, the connector portion includes a first connector boss located in a first sub-part and / or a second connector boss located in a second sub-part.

[0042] In some embodiments, when the joint is connected to other components, the first and second joint bosses, due to their height being higher than the plane containing the other outer surfaces of the joint, provide waterproofing. In applications where moisture may come into contact with the surface, they effectively prevent water from entering the frame through the connection between the three joints. Furthermore, the first joint boss significantly enhances the stability of the connection. For example, when welding to a connecting beam, the first and second joint bosses can serve as additional welding support surfaces, increasing the welding area and resulting in a more uniform and robust weld, thereby improving the connection strength between the joint and the connecting beam.

[0043] In some embodiments of the first aspect, the first joint boss, the second joint boss and the second boss on one side of the frame form a continuous boss.

[0044] In some embodiments, the first connector boss, the second connector boss, and the second boss can form a continuous rectangular boss. This rectangular boss effectively protects the surface it covers, further improving the sealing system of the frame on that surface. The boss serves to prevent external dust, moisture, corrosive gases, etc., from entering the frame, and to prevent the medium inside the frame from leaking into the external environment.

[0045] In some embodiments of the first aspect, each of the six faces of the frame includes a boss, which is quadrilateral in shape.

[0046] In some embodiments, the frame provides all-around sealing protection due to the presence of bosses on all six sides. In applications requiring prevention of external substances from entering the frame or avoiding leakage of internal media, the bosses can work with sealing materials or form a sealing structure through their tight fit, effectively blocking leakage channels from all directions.

[0047] In some embodiments of the first aspect, the outer surface of the connecting beam and the outer surface of the corresponding joint assembly are continuous surfaces.

[0048] In some embodiments, when the frame requires surface treatments such as corrosion protection, insulation, or coloring, the design of a continuous surface can also improve the continuity, uniformity, and consistency of the surface treatment, thereby improving the surface protection and decorative effects of the frame.

[0049] In some embodiments of the first aspect, the connecting beam is welded to the plug portion for fixation.

[0050] In some embodiments, welding not only secures the connecting beam and the joint assembly but also seals the connection interface, improving the frame's sealing performance. Furthermore, the welding of the connecting beam and the plug enhances the frame's structural stability; the robust welded connection effectively transmits and withstands external forces, preventing the frame from deforming or loosening under stress.

[0051] In some embodiments of the first aspect, the surface treatment of the frame includes at least one of the following methods: electrophoresis, powder coating, or painting.

[0052] In some embodiments, by appropriately selecting and applying treatment methods such as electrophoresis, powder coating, or painting, the protective performance, appearance quality, and service life of the frame can be effectively improved.

[0053] In some embodiments of the first aspect, the frame includes a door panel that is fixed to the frame by a hinge disposed in a second through hole.

[0054] In some embodiments, the hinged door panels can be easily opened and closed, enhancing the convenience of operating equipment or retrieving items within the frame. Furthermore, the door panels do not require excessive additional space during opening and closing, making the entire work area neater and more efficient, especially suitable for work environments with limited space.

[0055] In some embodiments of the first aspect, a plurality of first through holes are hexagonal through holes arranged at equal intervals and / or a plurality of second through holes are hexagonal through holes arranged at equal intervals.

[0056] In some embodiments, the shape of the hexagonal through-hole can enhance the structural performance of the connecting beam. Due to its hexagonal structure, the hexagonal bolt connection exhibits stronger breaking torque compared to the round-hole bolt connection. When external torque is applied, the six corners of the hexagon can act as support points, distributing the torque evenly over a larger area, thus enabling it to withstand greater torque without failure. This improves the overall torsional and bending mechanical properties of the connecting beam, enhancing the stability of the frame under complex stress environments.

[0057] In some embodiments of the first aspect, the connecting beam is formed by continuous bending, and the connection is welded and fixed after bending.

[0058] In some embodiments, the connecting beams are fabricated using a continuous bending process, which can meet the diverse shape requirements of the connecting beams in the frame structure, and has advantages such as low cost, high production efficiency, and easy control of processing accuracy. Welding ensures that the connection of the connecting beams is strong and reliable, forming a continuous load-bearing whole, effectively transferring and bearing various loads in the frame.

[0059] Secondly, this application provides a frame comprising a plurality of connecting beam assemblies, each connecting beam assembly including a connecting beam extending along a first direction, the connecting beam including two connecting portions disposed opposite each other along the first direction; a plurality of joints, each joint including a joint portion and a plug portion interconnected with each other; each plug portion being connected to one of the connecting portions of the connecting beam to form a connecting beam assembly; wherein, one of the joint portions of each of the three connecting beam assemblies is interconnected to form three mutually perpendicular connecting beam assemblies.

[0060] In the technical solution of this application embodiment, compared with a pre-formed frame, the volume of a single connecting beam assembly is greatly reduced, and the processing of each connecting beam assembly is decentralized, reducing the processing difficulty. The frame includes only one type of part, with a unified connection method, which facilitates transportation and installation, and the parts have high versatility and are easy to replace.

[0061] Thirdly, this application provides an energy storage device, including a frame, the frame including the frame according to the first or second aspect; and a plurality of battery devices disposed within the frame.

[0062] Fourthly, this application provides a charging network, including a charging pile and the energy storage device mentioned in the third aspect, the energy storage device being used to provide electrical energy to the charging pile. Attached Figure Description

[0063] Figure 1 This is a structural diagram of the energy storage device according to an embodiment of this application;

[0064] Figure 2 This is a structural diagram of the framework of an embodiment of this application;

[0065] Figure 3 This is a partial structural diagram of the framework of an embodiment of this application;

[0066] Figure 4 This is a structural diagram of the connecting beam according to an embodiment of this application;

[0067] Figure 5 This is a partial structural diagram of the connecting beam according to an embodiment of this application;

[0068] Figure 6 This is another structural diagram of the connecting beam according to an embodiment of this application;

[0069] Figure 7 This is another structural diagram of the framework of an embodiment of this application;

[0070] Figure 8 This is another part of the structural diagram of the framework of the embodiments of this application;

[0071] Figure 9 This is a partial structural diagram of the framework of an embodiment of this application;

[0072] Figure 10 This is a top view of the framework of an embodiment of this application;

[0073] Figure 11 This is another structural diagram of the framework of an embodiment of this application;

[0074] Figure 12 This is another structural diagram of the connecting beam according to an embodiment of this application;

[0075] Figure 13 This is another structural diagram of the connecting beam according to an embodiment of this application;

[0076] Figure 14 This is a structural diagram of the connector assembly according to an embodiment of this application;

[0077] Figure 15 This is a structural diagram of the connector according to an embodiment of this application;

[0078] Figure 16 This is another structural diagram of the connector according to an embodiment of this application;

[0079] Figure 17 This is another top view of the framework of an embodiment of this application;

[0080] Figure 18 This is yet another structural diagram of the framework of an embodiment of this application;

[0081] Figure 19 Another part of the structural diagram of the framework of the embodiments of this application;

[0082] Figure 20 This is a structural diagram of the connecting beam assembly according to an embodiment of this application;

[0083] Figure 21 This is a structural diagram of the energy storage system according to an embodiment of this application;

[0084] Figure 22 This is a structural diagram of the charging network according to an embodiment of this application.

[0085] The accompanying drawings are not drawn to scale.

[0086] Figure label:

[0087] 100 - Energy storage device; 10 - Frame; 11 - Connecting beam; 110 - Connecting part; 111 - Outer wall; 1111 - Second wall; 1112 - Second through hole; 1113 - Second boss; 112 - Inner wall; 1121 - First wall; 1122 - First through hole; 1123 - First boss; 12 - Connector assembly; 120 - Connector; 121 - Plug part; 122 - Connector part; 1221 - First sub-part; 12210 - Countersunk platform; 12211 - First connecting hole; 12212 - First connector boss; 1222 - Second sub-part; 1222 1-Second connecting hole; 12222-Second connector boss; 1223-First wedge surface; 12231-Groove; 1224-Second wedge surface; 12241-Protrusion; 13-Skin; 131-Connecting beam assembly; 14-First sealing strip; 151-First rivet nut; 152-Second rivet nut; 153-Hinge; 16-Boss; 17-Door panel; 20-Electrical cabinet; 30-Battery device; 200-Energy storage system; 210-Power conversion device; 220-Generation device; 300-Charging network; 310-Charging pile; 320 Connector. Detailed Implementation

[0088] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0089] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0090] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0091] In this application, the reference to "embodiment" means that a specific 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 mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0092] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0093] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0094] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0095] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0096] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0097] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0098] In some embodiments, a battery apparatus may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or in a mixed configuration via a busbar.

[0099] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0100] As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As another example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0101] In some embodiments, the battery device may be a battery pack, which includes a battery housing and one or more individual battery cells housed within the battery housing.

[0102] As an example, a battery cell assembly can be a battery module, which can be housed in a battery housing by fixing the battery module in the battery housing.

[0103] As an example, battery cell assemblies can also be housed in a battery housing by directly fixing multiple battery cells to the battery housing.

[0104] As an example, the battery housing may include a first battery housing and a second battery housing portion. The first battery housing portion and the second battery housing portion are fastened together to form a closed space inside the battery housing for housing individual battery cells. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first battery housing may be a top cover or a bottom plate.

[0105] As an example, the battery enclosure may include a top cover, a frame, and a bottom plate. The top cover and bottom plate are respectively connected to the frame, so that the interior of the battery enclosure forms an enclosed space to house individual battery cells.

[0106] In some embodiments, an energy storage device may include one or more battery clusters to increase the voltage and capacity of the energy storage device. A battery cluster may include multiple battery units connected in series via a busbar to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0107] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage devices can store electrical energy as needed and output it when appropriate. For example, an energy storage device can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours. The energy storage system provided in this application embodiment can be any power system that requires energy storage devices.

[0108] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0109] In some embodiments, the energy storage device may include a cabinet and one or more battery clusters housed within the cabinet.

[0110] In some embodiments, the energy storage device may include modules such as a thermal management module, a main control module, a central control module, a power distribution module, and a fire protection module.

[0111] As an example, the thermal management module may include a liquid cooling unit that supplies coolant to each battery device via piping to regulate the temperature of the individual battery cells.

[0112] As an example, the main control module can serve as the battery management unit for the battery cluster, used to monitor and manage the battery cluster. The main control module 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 main control module includes modules such as an auxiliary battery management unit (SBMU) and a fusion switch.

[0113] As an example, the central control module can serve as the battery management unit for an energy storage device, used to monitor and manage the device. The central control module can monitor information such as the energy storage device's current, voltage, power, state of charge, or temperature. For instance, it can control the charging and discharging current and voltage of the energy storage device. As an example, the central control module includes modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module.

[0114] As an example, a fire protection system includes control panels, detectors, alarm devices, etc., used to detect, alarm, or extinguish fires in energy storage systems.

[0115] As an example, the power distribution unit can be used to distribute power to the power modules of the energy storage device.

[0116] In some embodiments, the energy storage system may include one or more energy storage devices and a power converter system (PCS), with the power converter connecting between the power generation device and the energy storage device. The power generation device generates electrical energy, which can be stored in the energy storage device via the power converter. For example, the power generation device 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 device is not limited in this application.

[0117] In some embodiments, the charging network may include charging piles and energy storage devices. The charging piles are electrically connected to the energy storage devices, which provide power to the charging piles. The charging piles are electrically connected to a battery device in the energy storage device via cables, and the battery device can provide its stored electrical energy to the charging piles. The charging piles have one or more connectors for connecting to electrical devices, thereby enabling the charging of power to the devices.

[0118] Energy storage devices can be located inside the charging pile (e.g., an integrated energy storage and charging unit) or outside the charging pile.

[0119] With the increasing severity of global energy shortages, pollution, and uneven power development, there is a growing need to efficiently utilize more new energy sources. To better store electricity and alleviate power shortages, energy storage devices have emerged. These devices can be used in energy storage power stations, wind power systems, solar power systems, mobile power systems, or temporary power supply systems. Energy storage devices can store electrical energy as needed and output it when appropriate. For example, as a device for storing and transferring electrical energy, energy storage devices can store energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours.

[0120] Generally, energy storage devices may include a frame that provides support for the energy storage device. In related technologies, the frame is often manufactured as a whole in a factory by welding. However, the whole frame is large in size and weight, and inconvenient to transport. The types and number of detachable frame parts are large, the assembly process is cumbersome, and the versatility is low.

[0121] Based on the above considerations, this application provides a frame including multiple connecting beams and multiple connector assemblies. The connecting beams extend along a first direction and include two connecting portions disposed opposite each other along the first direction. The connecting beams include at least one inner wall located inside the frame, and the first wall of the at least one inner wall includes multiple first through holes. The connector assembly includes three mutually perpendicular plug portions. Each connecting portion is connected to one plug portion to form the frame.

[0122] The frame consists of multiple identical connecting beams and multiple identical joint assemblies. Each connector is linked to the next, simplifying the assembly process. The frame comprises only two types of parts with simple, identical structures and uniform connection methods, making the entire manufacturing process more efficient and orderly, improving production efficiency and shortening the production cycle. Furthermore, when the frame needs to be moved or transported, the connecting beams and joint assemblies can be transported separately, reducing transportation difficulty and minimizing damage during transport. The simplicity and similarity of the parts enhance their versatility and ease of replacement. The inner walls of the connecting beams increase the frame's mounting surface, allowing for installation through the first through-hole in the inner wall, further refining the internal structure and expanding functionality. This enhances the overall strength of the frame, providing better resistance to deformation under complex external forces, and also integrates different functional modules into the frame system to meet diverse usage needs, giving the frame more practical functions.

[0123] Figure 1 This is a structural diagram of an energy storage device according to an embodiment of this application. Figure 1 As shown, the interior of the energy storage device 100 is a hollow structure, which can include multiple compartments, for example, to accommodate multiple electrical cabinets.

[0124] In some embodiments, the energy storage device 100 may include a plurality of electrical cabinets 20, and each electrical cabinet 20 may include a cabinet body and at least one electrical box.

[0125] The battery cabinet 20 is used to encapsulate one or more battery devices 30. Multiple battery devices 30 can be connected in parallel, in series, or in a series-parallel connection.

[0126] In some embodiments, the storage unit may include a battery compartment for accommodating batteries. In addition, the interior of the energy storage device 100 may be divided into multiple functional compartments according to actual needs. Each functional compartment contains other functional equipment components for managing or assisting the operation of the multiple batteries, such as a busbar, a main control unit, a thermal management unit, etc.

[0127] In some embodiments, the thermal management component may include an air conditioning assembly, a fan assembly, water-cooled pipes, etc., which can be used to perform thermal management on the interior of the energy storage device 100 to adjust the temperature inside the energy storage device 100.

[0128] In some embodiments, the energy storage device 100 may further include a fire protection system for fire protection treatment of the energy storage device 100, such as alarm, cooling or fire extinguishing.

[0129] In some embodiments, the energy storage device 100 can be a regular cuboid structure, which facilitates the fixed placement and transportation of the energy storage device 100.

[0130] It should be understood that Figure 1 The components shown are merely examples. In practical applications, these components may have different names, or they may be modified according to actual needs. Figure 1 You can add or delete components in the system.

[0131] Figure 2 This is a structural diagram of the framework of an embodiment of this application. (In conjunction with...) Figure 1 and Figure 2 The energy storage device 100 includes a frame 10, which serves as the main support structure for the energy storage device 100. The frame 10 provides stable support for the energy storage device 100, thereby providing a basic shape profile for the energy storage device 100. This allows the energy storage device 100 to maintain its predetermined geometric shape under various environmental conditions, reducing the risk of deformation phenomena such as twisting, bending, or collapse of the energy storage device 100, and ensuring the normal use of the energy storage device 100.

[0132] The following is combined with Figures 2 to 19 The framework 10 provided in this application will be described in detail below, along with specific embodiments.

[0133] Figure 3 This is a partial structural diagram of the framework of an embodiment of this application. Figure 4 This is a structural diagram of the connecting beam according to an embodiment of this application. Figures 2 to 4 As shown, the frame 10 includes a plurality of connecting beams 11 and a plurality of connector assemblies 12. The connecting beams 11 extend along a first direction and include two connecting portions 110 disposed opposite each other along the first direction. The connecting beams 11 include at least one inner wall 112 located inside the frame 10. The first wall 1121 of the at least one inner wall 112 includes a plurality of first through holes 1122. The connector assembly 12 includes three mutually perpendicular plug portions 121. Each connecting portion 110 is connected to one plug portion 121 to form the frame 10.

[0134] In this application, multiple connecting beams 11 and multiple joint assemblies 12 can be connected to form a cubic frame 10. For example, a frame 10 may include twelve connecting beams 11 and eight joint assemblies 12.

[0135] It should be understood that the extension of the connecting beam 11 along the first direction means that the connecting beam 11 is extended along a straight trajectory, rather than in a curved shape.

[0136] In some embodiments, each end of the connecting beam 11 is provided with a connecting portion 110 for connecting to the joint assembly 12.

[0137] It should be understood that the material of frame 10 can be selected based on the specific usage environment and performance requirements. For example, in some applications requiring high strength, high-strength alloy steel may be selected. This material has excellent yield strength and tensile strength, and can withstand huge pressure and tension, ensuring the reliability of the frame under harsh working conditions. As another example, in some applications with strict weight restrictions and certain requirements for corrosion resistance, aluminum alloy can be selected. Aluminum alloy has a low density, which reduces the weight of the overall structure, making it easier to transport and install. Moreover, its surface can form a dense oxide film, which has a certain degree of corrosion resistance and is suitable for some humid or slightly corrosive environments.

[0138] It should be understood that the connecting beam 11 may include an outer wall 111 in addition to the inner wall 112. For example, the connecting beam 11 may include a total of three walls with a triangular cross-section; or, for another example, the connecting beam 11 may include a total of four walls with a quadrilateral cross-section.

[0139] It should be understood that each of the at least one inner wall 112 can be a first wall 1121 including a plurality of first through holes 1122. When there are two or more inner walls 112, one of the inner walls 112 can be a first wall 1121 including a plurality of first through holes 1122, or both inner walls 112 can be first walls 1121 including a plurality of first through holes 1122.

[0140] In some embodiments, the first through hole 1122 can be a round hole or a hexagonal through hole, and this application does not limit it.

[0141] It should be understood that the multiple first through holes 1122 can be arranged at equal intervals, or staggered, etc., and this application does not limit them.

[0142] Figure 5 This is a partial structural diagram of the connecting beam according to an embodiment of this application. Figure 5 As shown, the multiple first through holes 1122 can be used to install various components. For example, by passing bolts, pins and other connectors through the first through holes 1122, reinforcing ribs, internal support structures and functional modules can be fixed to the connecting beam 11.

[0143] In some embodiments, in applications where wiring or conduit needs to be arranged inside the frame 10, it can also be arranged through the first through hole 1122. Wires and cables can pass through the first through hole 1122 to achieve orderly wiring, avoiding messy distribution of wires inside the frame 10. This not only facilitates the maintenance and management of the wiring, but also reduces safety hazards caused by mutual interference or exposure of wires.

[0144] In some embodiments, the connector assembly 12 includes three mutually perpendicular plug portions 121, i.e., each connector assembly 12 serves as a corner of the cubic frame 10, so that the connecting beams 11 can be connected in a predetermined direction and angle.

[0145] It should be understood that each connector 110 is connected to a plug 121, that is, one connector assembly 12 connects to three connecting beams 11, and one connecting beam 11 connects to two connector assemblies 12.

[0146] It should be understood that, for example, the connecting part 110 can be connected to the plug part 121 by means of mortise and tenon structure, welding, screw connection, etc.

[0147] In some embodiments, for example, the connecting beams may include four vertical beams and eight horizontal beams. The vertical beams are the vertical support components of the frame 10, installed perpendicular to the ground, and their main function is to bear vertical loads. The horizontal beams are the horizontal connecting components of the frame, which together with the vertical beams form the cubic frame 10. The function of the horizontal beams is not only to connect the various vertical beams to form a whole frame, but also to bear horizontal loads.

[0148] It should be understood that in practical applications, the dimensions of the horizontal and vertical beams can be comprehensively designed according to the application scenario, load and other requirements.

[0149] In some embodiments, the inner wall 112 of the connecting beam 11 can increase the mounting surface of the frame 10. Installation is carried out through the first through hole 1122 of the inner wall 112, which further improves the internal structure and expands the functionality of the frame 10. In this way, the overall strength of the frame 10 is enhanced, giving it better resistance to deformation under complex external forces. It also allows for the integration of different components into the frame 10 system, meeting diverse usage needs and providing the frame 10 with more practical functions.

[0150] In some embodiments, the frame 10 is composed of multiple identical connecting beams 11 and multiple identical joint assemblies 12. The frame 10 is formed by connecting each plug portion 121 to each connecting portion 110 in the same way, which simplifies the assembly process of the frame. In addition, when the frame 10 needs to be moved or transported, the connecting beams 11 and joint assemblies 12 can be transported separately, which reduces the difficulty of transportation and minimizes the damage to the frame 10 during transportation.

[0151] In some embodiments, the frame 10 includes only two types of parts. The parts have simple and identical structures and uniform connection methods, making the entire manufacturing process of the frame 10 more efficient and orderly, improving production efficiency and shortening the production cycle. In addition, because the parts are simple and identical, they are more versatile and easier to replace.

[0152] In some embodiments, a plurality of first through holes 1122 are arranged along a first direction; wherein at least one inner wall 112 includes two inner walls 112 perpendicular to each other, and the connecting beam 11 further includes a first boss 1123 extending along the first direction outside the first wall 1121, the first boss 1123 being located on the same side of the plurality of first through holes 1122.

[0153] It should be understood that at least one inner wall 112 includes two mutually perpendicular inner walls 112, that is, the connecting beam 11 includes two mutually perpendicular inner walls 112 and two mutually perpendicular outer walls 111, with a quadrilateral cross-section. The two perpendicular inner walls 112 can resist the action of external forces in different directions, forming a stable spatial structure.

[0154] It should be understood that the multiple first through holes 1122 can be arranged at equal intervals along the first direction. The multiple first through holes 1122 in the equal-interval array can meet the component installation requirements under different usage needs, making the frame 10 and the connecting beam 11 highly versatile.

[0155] In some embodiments, a plurality of first through holes 1122 are arranged along a first direction, enabling a more uniform force transmission and distribution when the connecting beam 11 is subjected to force in that direction. For example, when the frame 10 is subjected to tension or compression, the connectors (such as bolts, pins, etc.) installed through these orderly arranged through holes can effectively distribute the force across the entire length of the connecting beam 11, avoiding stress concentration at a certain point or in a certain area, thereby enhancing the load-bearing capacity and stability of the connecting beam 11 and the entire frame 10.

[0156] In some embodiments, the first boss 1123 is a boss of the first wall 1121 facing the outside of the frame 10, that is, the first boss 1123 is higher than the plane where the first through hole 1122 is located.

[0157] In some embodiments, the first boss 1123 extends along a first direction, that is, the first boss 1123 is a continuous boss.

[0158] It should be understood that the first boss 1123 is located on the same side of the plurality of first through holes 1122, that is, the dimension of the first boss 1123 along the first direction is the same as the dimension of the first wall 1121 along the first direction.

[0159] It should be understood that the height of the first protrusion 1123 can be designed according to specific application scenarios and structural requirements, and this application does not impose any limitations.

[0160] In some embodiments, the first boss 1123 is located outside the first wall 1121 and on the same side of the plurality of first through holes 1122, which can protect the area of ​​the first through holes 1122. When the component installed through the first through hole 1122 bears a large load, the first boss 1123 can act as a local reinforcing structure to share some of the stress and prevent the material around the through hole from deforming, cracking or other damage due to excessive force. The first boss 1123 can also limit the excessive displacement of the component installed on the inner wall 112 on the connecting beam 11, prevent the connector from loosening or falling off due to vibration, external impact or other factors, and improve the stability of the connection.

[0161] Figure 6 This is another structural diagram of the connecting beam according to an embodiment of this application. Figure 6 As shown, the connecting beam 11 includes two mutually perpendicular outer walls 111 located outside the frame 10, and the second wall 1111 of the two outer walls 111 includes a plurality of second through holes 1112.

[0162] It should be understood that the connecting beam 11 includes at least two mutually perpendicular outer walls 111, that is, the connecting beam 11 may also include other walls besides the two outer walls 111.

[0163] It should be understood that both outer walls 111 can be second walls 1111 including multiple second through holes 1112, and one of the outer walls 111 can be a second wall 1111 including multiple second through holes 1112.

[0164] In some embodiments, the second through hole 1112 can be a round hole or a hexagonal through hole, and this application does not limit it.

[0165] It should be understood that a circular hole is a common hole type in the field of machining, and it can be well adapted to various common connection methods, such as bolt connections and pin connections. When the connecting beam 11 is subjected to external forces, the stress distribution around the circular hole is relatively uniform. This is because the circular geometry allows the force to be distributed more evenly along the circumference during transmission, avoiding stress concentration in local areas.

[0166] It should be understood that, for example, when the second through hole 1112 is a round hole, a round hole bolt connection is required; when the second through hole 1112 is a hexagonal through hole, a hexagonal bolt connection is required. Generally, hexagonal bolt connections have a stronger breaking torque than round hole bolt connections. This is mainly due to its hexagonal structure. When subjected to torque, the sides and corners of a hexagon can more effectively disperse stress, while the stress distribution of a circle is relatively concentrated. When external torque is applied, the six corners of a hexagon can act as support points, distributing the torque evenly over a larger area, thus enabling it to withstand greater torque without failure. Therefore, when the nut needs to withstand a large installation load and a large installation torque, it is recommended to use a hexagonal through hole.

[0167] It should be understood that the multiple second through holes 1112 can be arranged at equal intervals, or staggered, etc., and this application does not limit them.

[0168] In some embodiments, bolts, pins, or other connectors can be inserted into the second through hole 1112 to connect with external auxiliary equipment, protective devices, or other functional modules, thereby expanding the functional application range of the connecting beam 11 and the entire frame 10.

[0169] In some embodiments, the mutually perpendicular outer walls 111 can provide lateral support to the frame in different directions, enhancing the frame 10's ability to resist external forces from different directions, preventing local deformation or torsion of the frame 10, and maintaining the overall geometry and structural stability of the frame 10. The second through hole 1112 provides a convenient mounting point for connecting the beam 11 to other components.

[0170] In some embodiments, a plurality of second through holes 1112 are arranged along a first direction; wherein, the connecting beam 11 further includes a second boss 1113 extending along the first direction outside the second wall 1111, the second boss 1113 being located on the same side of the plurality of second through holes 1112.

[0171] It should be understood that the multiple second through holes 1112 can be arranged at equal intervals along the first direction.

[0172] In some embodiments, a plurality of second through holes 1112 are arranged along a first direction, enabling a more uniform force transmission and distribution when the connecting beam 11 is subjected to force in that direction. When an external load is applied to these through holes through the connector, the force can be transmitted in an orderly manner within the connecting beam 11 along the first direction, avoiding the problem of local stress concentration caused by a disordered layout of the through holes.

[0173] In some embodiments, the second boss 1113 is a boss of the second wall 1111 facing the outside of the frame 10, that is, the second boss 1113 is higher than the plane where the second through hole 1112 is located.

[0174] In some embodiments, the second boss 1113 extends along a first direction, that is, the second boss 1113 is a continuous boss.

[0175] It should be understood that the second boss 1113 is located on the same side of the plurality of second through holes 1112, that is, the dimension of the second boss 1113 along the first direction is the same as the dimension of the second wall 1111 along the first direction.

[0176] It should be understood that the height of the second protrusion 1113 can be designed according to specific application scenarios and structural requirements, and this application does not impose any limitations.

[0177] In some embodiments, the second boss 1113 has a waterproof function because its height is higher than the plane where the second through hole 1112 is located. In some application scenarios where water may come into contact with the surface, it can effectively prevent water from flowing along the second wall 1111 of the connecting beam 11 into the second through hole 1112 and the interior of the frame 10.

[0178] In some embodiments, during the connection operation, the second boss 1113 can limit the connection member passing through the second through hole 1112. After the connection member is installed in place, the second boss 1113 can restrict its excessive displacement in the direction perpendicular to the surface of the connecting beam 11, preventing the connection member from loosening or coming off due to vibration, external impact, or other factors, thus improving the stability of the connection. The second boss 1113 can also serve as an auxiliary positioning structure, helping to determine the installation position and orientation of some auxiliary components related to the connecting beam 11, limiting the range of movement of the components in a specific direction, so that the auxiliary components can be accurately and securely installed on the frame, achieving collaborative work with the frame and improving the functionality and stability of the entire frame system.

[0179] In some embodiments, the number of the plurality of first through holes 1122 is greater than the number of the plurality of second through holes 1112.

[0180] It should be understood that the difference in the number of the first through hole 1122 and the second through hole 1112 can meet different functional requirements.

[0181] In some embodiments, for example, a plurality of first through holes 1122 on the first wall 1121 can be used to install some internal functional components, such as wires, pipes, parts, etc. A greater number of through holes means that more installation location options can be provided, increasing the flexibility of the internal layout of the frame 10.

[0182] In some embodiments, for example, the second through hole 1112 on the second wall 1111 can be used for external connection, and a relatively small number is sufficient to meet its functional requirements, while avoiding excessive through holes from having too much impact on the strength of the outer wall 111.

[0183] Figure 7 This is another structural diagram of the framework of an embodiment of this application. For example... Figure 7 As shown, the frame 10 includes a skin 13 disposed on the outside of the frame 10, and the skin 13 is fixed to the frame 10 by bolts connected to the second through hole 1112.

[0184] It should be understood that the choice of materials for the skin 13 is usually determined based on the specific application scenario and requirements. Common materials include aluminum alloys, carbon fiber composites, and fiberglass.

[0185] In some embodiments, the surface of the skin 13 typically has a certain degree of flatness and smoothness, which can enhance the overall aesthetics of the frame and reduce resistance when air or fluid flows through it.

[0186] It should be understood that the skin 13 can undergo surface treatments, such as painting or coating, to further improve its corrosion resistance, wear resistance and decorative properties.

[0187] It should be understood that the cube-shaped frame 10 has six faces, and skins 13 can be selectively installed on the six faces of the frame 10 according to specific application scenarios and requirements.

[0188] In some embodiments, the shape and size of the skin 13 can be customized according to the external contour and dimensions of the frame 10. It can completely cover the outer surface of the frame 10 to achieve both protection and aesthetics.

[0189] It should be understood that the skin 13 may not completely cover the outer surface of the frame 10, and can be set according to the actual application scenario.

[0190] It should be understood that the skin 13 and the second through hole 1112 can be connected by bolts and nuts or by rivet nuts.

[0191] In some embodiments, the skin 13 is typically installed after the frame 10 is assembled. During installation, the skin 13 is first aligned with the second through hole 1112 on the frame 10. Then, bolts are passed through the skin 13 and the second through hole 1112 and tightened to secure the skin firmly to the frame 10. During installation, care must be taken to ensure that the bolt tightening torque is uniform to avoid uneven stress on the skin 13, which could lead to deformation or damage.

[0192] In some embodiments, a skin 13 is installed on the outside of the frame 10. The skin 13 serves as an external protective layer for the frame 10, effectively preventing damage to the frame from external physical impacts, chemical corrosion, moisture erosion, and other adverse factors. The skin 13 is fixed to the frame 10 via bolts, forming a stable connection between the skin 13 and the frame 10. Bolt connections are relatively simple and easy to implement, requiring no complex specialized equipment or processes. When the skin 13 needs repair, replacement, or internal frame inspection, the bolted connection allows for convenient disassembly of the skin 13 even when affected by external vibrations, temperature changes, or other factors, without damaging the frame structure.

[0193] Figure 8 This is another part of the structural diagram of the framework of the embodiments of this application. Figure 9 This is a further structural diagram of the framework of an embodiment of this application. For example... Figure 8 and Figure 9 As shown, the frame 10 includes a first sealing strip 14 located between the second wall 1111 and the skin 13; wherein the projection of the first sealing strip 14 along the thickness direction of the second wall 1111 and the projection of the second boss 1113 along the thickness direction of the second wall 1111 have no overlapping area, and the first sealing strip 14 is hollowed out at a plurality of second through holes 1112.

[0194] It should be understood that the material of the first sealing strip 14 is usually selected from rubber or polymer materials with good elasticity, aging resistance, wear resistance and sealing performance to achieve the sealing effect.

[0195] In some embodiments, for example, the material of the first sealing strip 14 may be foamed silicone rubber.

[0196] In some embodiments, the projection of the first sealing strip 14 along the thickness direction of the second wall 1111 and the projection of the second boss 1113 along the thickness direction of the second wall 1111 do not overlap, that is, the first sealing strip 14 is located next to the second boss 1113 and covers the plane where the second through hole 1112 is located.

[0197] It should be understood that the first sealing strip 14 does not cover the second boss 1113, which can reduce the possibility that the presence of the sealing strip will interfere with the function of the second boss 1113.

[0198] It should be understood that, in order to facilitate the installation of parts such as the skin 13, the first sealing strip 14 is hollowed out at the second through hole 1112, that is, the first sealing strip is a long strip-shaped sealing strip including multiple holes.

[0199] In some embodiments, by reasonably setting the layout relationship between the first sealing strip 14, the second boss 1113, and the second through hole 1112, external dust, moisture, impurities, etc. are effectively prevented from entering the interior of the frame 10, thereby improving the sealing performance of the frame 10 structure, providing a relatively clean, dry, and stable working environment for the components inside the frame 10, extending the service life of the internal components, and reducing the probability of failure caused by environmental factors.

[0200] In some embodiments, the thickness of the first sealing strip 14 located between the skin 13 and the second wall 1111 is the same as the height of the second boss 1113.

[0201] It should be understood that the first sealing strip 14 is elastic. After the first sealing strip 14 is installed between the skin 13 and the second wall 1111, the first sealing strip 14 is in a compressed state. The thickness of the first sealing strip 14 in the compressed state is the same as the height of the second boss 1113.

[0202] In some embodiments, the thickness of the first sealing strip 14 is the same as the height of the second boss 1113. The first sealing strip 14 can just fill the gap between the second wall 1111 and the skin 13, and works together with the second boss 1113 to form a relatively flat and continuous sealing interface. This can enhance the sealing effect, making it difficult for external dust, moisture, etc. to enter the interior of the frame 10 through these sealing parts, maximizing the tightness of the seal, and creating a stable and clean working environment for the components inside the frame 10.

[0203] In some embodiments, the first sealing strip 14 and the second protrusion 1113 are consistent in height. During long-term use, even if affected by external factors such as vibration and temperature changes, the first sealing strip 14 is not prone to sealing failure due to excessive local compression or loosening.

[0204] Figure 10 This is a top view of the framework of an embodiment of this application. Figure 10 As shown, the first sealing strip 14 can cover one side of the frame 10, that is, the first sealing strip 14 can be connected to each other on one side of the frame 10 to form a quadrilateral or approximately quadrilateral.

[0205] It should be understood that the first sealing strip 14 can also cover all six sides of the frame 10, which can better achieve the effect of sealing and waterproofing.

[0206] Figure 11 This is another structural diagram of the framework of an embodiment of this application. For example... Figure 11 As shown, each of the five sides of the frame 10 includes an interconnected quadrilateral-shaped first sealing strip 14, and is covered with an outer skin 13.

[0207] It should be understood that the frame 10 may also include interconnected quadrilateral-shaped first sealing strips 14 on all six sides, with an outer covering skin 13, which can be determined according to the actual application scenario.

[0208] In some embodiments, the ratio of the thickness dimension of the first sealing strip 14 located between the skin 13 and the second wall 1111 to the thickness dimension of the first sealing strip 14 is greater than or equal to 0.5 and less than or equal to 0.6.

[0209] It should be understood that the first sealing strip 14 is compressible, and the first sealing strip 14 located between the skin 13 and the second wall 1111 is in a compressed state.

[0210] It should be understood that the compressibility of the first sealing strip 14 is 40%-60%.

[0211] In some embodiments, when the compression ratio is within this range, the first sealing strip 14 can fully fill the gap between the skin 13 and the second wall 1111, forming an effective seal. Under a certain pressure, the first sealing strip 14 undergoes moderate compression deformation, causing it to fit tightly against the contact surface, thereby preventing external dust, moisture, and other impurities from entering the interior of the frame 10, ensuring the stability of the internal environment of the frame 10 and the normal operation of the components.

[0212] In some embodiments, this compression ratio range ensures that the first sealing strip 14 has stable mechanical properties within the frame 10 structure. When subjected to external forces, the first sealing strip 14 can provide cushioning and shock absorption to a certain extent, without affecting its sealing function and the overall stability of the frame 10 due to excessive deformation.

[0213] Figure 12 This is another structural diagram of the connecting beam according to an embodiment of this application. (See diagram below.) Figure 12 As shown, the connecting beam 11 includes two outer walls 111 and two inner walls 112. The two outer walls 111 and the two inner walls 112 are perpendicular to each other. Each inner wall 112 has a first boss 1123 on both sides, and each outer wall 111 has a second boss 1113 on the side where it connects to each inner wall 112.

[0214] It should be understood that the two outer walls 111 and the two inner walls 112 are perpendicular to each other, meaning that the cross-section of the connecting beam 11 is rectangular. When the widths of the outer walls 111 and the inner walls 112 are the same, the cross-section of the connecting beam 11 is square.

[0215] It should be understood that each of the two inner walls 112 includes a first protrusion 1123 on both sides, that is, the two inner walls 112 include a total of four first protrusions 1123.

[0216] It should be understood that each of the two outer walls 111 includes a second boss 1113 on the side where each outer wall 111 connects to each inner wall 112, that is, each outer wall 111 includes a second boss 1113, and the second boss 1113 is located on the side where each outer wall 111 connects to each inner wall 112.

[0217] It should be understood that the side where the two outer walls 111 are connected may also include a second boss 1113.

[0218] In some embodiments, various components, such as reinforcing ribs and functional modules, can be installed inside the connecting beam 11 through the first through hole 1122. The first boss 1123 can prevent these components from undergoing excessive displacement or rotation when subjected to external forces, so that they always remain in the correct installation position, thereby increasing the structural strength inside the connecting beam 11 and giving it better stability and reliability.

[0219] In some embodiments, each outer wall 111 includes a second protrusion 1113 on the side connecting to each inner wall 112, which can more comprehensively achieve sealing and waterproofing functions, preventing water, dust and other external substances from entering the interior of the frame 10, protecting the internal components of the frame 10 from corrosion and extending their service life. In addition, the second protrusion 1113 can also strengthen the structural performance of the connection part 110, increasing the strength and rigidity of the connection part 110, enabling it to better withstand the effects of external forces.

[0220] Figure 13 This is another structural diagram of the connecting beam according to an embodiment of this application. Figure 13 As shown, the frame 10 includes a first rivet nut 151 disposed in the first through hole 1122 and / or a second rivet nut 152 disposed in the second through hole 1112; wherein, the height of the farad section of the first rivet nut 151 is the same as the height of the first boss 1123, and the height of the flange section of the second rivet nut 152 is the same as the height of the second boss 1113.

[0221] It should be understood that a rivet nut typically consists of a cylindrical nut body and a rivet-deformed portion located at one end of the nut body. The nut body has a threaded hole inside that matches a bolt or screw for connecting other components.

[0222] It should be understood that rivet nuts are generally made of materials such as carbon steel, stainless steel, and aluminum.

[0223] It should be understood that for the first rivet nut 151 set in the first through hole 1122, it is inserted into the first through hole 1122, ensuring that the flange section of the nut fits tightly against the outer wall 111. Then, using professional riveting tools, the first rivet nut 151 is riveted according to the prescribed operating procedure to firmly fix it in the first through hole 1122, forming a reliable connection node. During the riveting process, care should be taken to control the magnitude and direction of the riveting force to avoid problems such as loosening, deformation, or damage to the nut due to insufficient or excessive riveting.

[0224] It should be understood that the installation method of the second rivet nut 152, which is set in the second through hole 1112, is the same as that of the first rivet nut 151.

[0225] It should be understood that rivet nuts do not require pre-tapping of internal threads like traditional nuts and can be installed directly with a rivet gun, simplifying the installation process and saving processing time and costs.

[0226] It should be understood that the first rivet nut 151 and the second rivet nut 152 can be installed before or after the surface treatment of the frame 10. If the frame 10 has equipotential requirements, the first rivet nut 151 and the second rivet nut 152 need to be installed before the surface treatment of the two connecting beams 11, and the connection between the first rivet nut 151 and the second rivet nut 152 and the connecting beam 11 should be shielded and protected during the surface treatment.

[0227] In some embodiments, the rivet nut fits tightly against the wall of the mounting hole during installation. When the rivet gun pulls the mandrel of the rivet nut, the nut body deforms and expands outwards, filling the gap between the mounting hole and the nut. This tight fit acts like a plug, preventing the passage of liquids and gases to a certain extent, achieving a sealing effect.

[0228] In some embodiments, the flange section height of the first rivet nut 151 is the same as the height of the first boss 1123. That is, after the first rivet nut 151 is installed, the flange section dimension outside the inner wall 112 is the same as the height of the first boss 1123. The height matching between the flange section of the first rivet nut 151 and the first boss 1123 allows the frame 10 to easily integrate and install various different components, meeting diverse functional requirements.

[0229] In some embodiments, the flange section height of the second rivet nut 152 is the same as the height of the second boss 1113. That is, after the second rivet nut 152 is installed, the flange section outside the outer wall 111 has the same height as the second boss 1113. The fact that the flange section of the second rivet nut 152 has the same height as the second boss 1113 reduces the possibility of the frame 10 generating excess space. That is, when installing the skin 13, the flatness of the skin 13 can be maintained.

[0230] In some embodiments, rivet nuts are used for installation, which enhances the sealing performance of the frame 10. The uniform height reduces the possibility of excess space in the frame 10, providing operators with a more convenient installation experience and facilitating the subsequent installation of other components of the frame 10. Furthermore, the frame 10 achieves a more uniform stress distribution when subjected to external forces, effectively avoiding stress concentration and significantly enhancing the strength and stability of the connecting beam 11 and the entire frame 10 structure.

[0231] Figure 14 This is a structural diagram of the connector assembly according to an embodiment of this application. Figure 14 As shown, the connector assembly 12 includes three identical interconnected connectors 120, each connector 120 including a connector portion 122 and a plug portion 121, the three connector portions 122 being interconnected to form the connector assembly 12.

[0232] It should be understood that the connector assembly 12 can be a single unit or consist of three identical connectors 120.

[0233] It should be understood that the material of the connector assembly 12 can be high-strength alloy steel, aluminum alloy, etc.

[0234] It should be understood that the joint 122 can be connected by means of welding, riveting or bolting.

[0235] In some embodiments, since the three connectors 122 are identical, a uniform mold and processing technology can be used during the manufacturing process, improving production efficiency and product quality consistency. This not only reduces the scrap rate during production but also makes the mass production of the connector assembly 12 more efficient and stable.

[0236] In some embodiments, when assembling the frame 10, the connecting beam 11 and the joint 120 can be assembled first, and then the three joints 120 can be connected to each other to form the frame 10; or the three joints 120 can be connected to each other to form the joint assembly 12, and then the joint assembly 12 can be connected to the connecting beam 11 to form the frame 10.

[0237] In some embodiments, the connector assembly 12 has a simple structure, is easy to install and operate, saves installation time, and reduces construction costs. The three connectors 120 have the same structure, making them highly versatile. The connection of the three connector parts 122 and the tight fit between the plug part 121 and the connecting beam 11 enable the connector assembly 12 to effectively transmit and distribute various external forces borne by the frame 10, significantly enhancing the overall stability and safety of the frame 10 structure.

[0238] Figure 15 This is a structural diagram of the connector according to an embodiment of this application. Figure 15 As shown, the connector 122 includes a first sub-part 1221 and a second sub-part 1222 that are perpendicular to each other. The outer surface of the first sub-part 1221 is recessed with a countersunk platform 12210. At least a portion of the second sub-part 1222 of one connector 122 in the connector assembly 12 is embedded in the countersunk platform 12210 of the other connector 122, so that the outer surfaces of the interconnected first sub-part 1221 and the second sub-part 1222 are flush.

[0239] It should be understood that the first sub-part 1221 and the second sub-part 1222 are perpendicular to each other and can correspond to the two outer walls 111 that are perpendicular to each other of the connecting beam 11, so that each side of the frame 10 forms a continuous surface, that is, each side of the frame 10 can be a flat surface.

[0240] It should be understood that the first sub-part 1221 has a recessed platform 12210 on its outer surface. The platform 12210 has an outer surface that is set away from the internal space of the frame 10. The platform 12210 is formed by the recess of the outer surface of the first sub-part 1221. That is, the outer surface of the joint part 122 is not flat, but has a downwardly recessed area, which is the platform 12210.

[0241] In some embodiments, the shape, size, and depth of the recessed platform 12210 need to be designed according to the second sub-part 1222 so that after the three connector parts 122 are connected to each other, at least a portion of the second sub-part 1222 of one connector part 122 can be embedded in the recessed platform 12210 on another connector part 122 to achieve the function of connection and fixation.

[0242] It should be understood that the recessed platform 12210 may be circular, square or other irregularly shaped. Correspondingly, the second sub-part 1222 has a portion of its structure that is circular, square or similar to the irregular shape of the recessed platform 12210. This portion of the structure of the second sub-part 1222 can be embedded in the recessed platform 12210.

[0243] It should be understood that the depth of the recessed platform 12210 from the outer surface of the joint portion 122 is approximately equivalent to the thickness of the portion of the second sub-part 1222 that is embedded in the recessed platform 12210. This ensures that after the portion of the second sub-part 1222 is embedded in the recessed platform 12210, the outer surface of the first sub-part 1221 and the outer surface of the second sub-part 1222 remain flush. That is, the outer surfaces of the interconnected first sub-part 1221 and the second sub-part 1222 are on the same plane, with no height difference between them. Furthermore, the outer surfaces of the first sub-part 1221 and the second sub-part 1222 are seamlessly joined, and the outer surfaces of the two interconnected parts are smoothly connected without gaps or misalignment. This allows the outer surfaces of the three joint portions 122 to form a continuous surface after they are interconnected.

[0244] In this application example, after the three connector portions 122 are interconnected, the mutually perpendicular first sub-parts 1221 and second sub-parts 1222 can form three mutually perpendicular planes, allowing the connector assembly 12 to form a continuous surface with the connecting beam 11. At least a portion of the second sub-part 1222 can be correspondingly embedded in the recessed platform 12210, so that the connection position can be structurally maintained against the recessed platform 12210 through the second sub-part 1222, thereby giving the connector portion 122 a certain ability to resist external forces such as shear force at the connection position, reducing the probability of relative displacement of the connector portion 122. In addition, the second sub-part 1222 is at least partially embedded in the recessed platform 12210, so that the outer surfaces of the interconnected first sub-part 1221 and the second sub-part 1222 are flush. When it is necessary to install other components or perform surface treatment (such as painting or electroplating), the flush outer surface can provide a better operating base, reducing the risk of installation difficulties or poor surface treatment results caused by uneven surfaces.

[0245] In some embodiments, the recess 12210 of the first sub-part 1221 is provided with a first connecting hole 12211, and the second sub-part 1222 is provided with a second connecting hole 12221. The first connecting hole 12211 and the second connecting hole 12221 are connected and engaged to connect the first sub-part 1221 and the second sub-part 1222.

[0246] It should be understood that the first connecting hole 12211 and the second connecting hole 12221 are respectively provided in the sinking platform 12210 and the second sub-part 1222. When the joint parts 122 are connected to each other, a connector that is compatible with the first connecting hole 12211 and the second connecting hole 12221 can be used for connection. The connector can be a screw, bolt, pin, rivet, etc.

[0247] In some embodiments, the first connecting hole 12211 can be a screw hole, the second connecting hole 12221 can be a through hole, and the connecting member is a screw or bolt. The first sub-part 1221 is screwed to the corresponding second sub-part 1222 to connect the two connecting parts 122. The first connecting hole 12211 can be a countersunk hole, so that the head of the connecting member such as the screw or bolt can be inserted into the second connecting part without protruding from the outer surface of the second connecting part.

[0248] In some embodiments, a first connecting hole 12211 is provided on the recessed platform 12210 of the first sub-part 1221, and a second connecting hole 12221 is correspondingly provided on the second sub-part 1222, so that the first connecting hole 12211 and the second connecting hole 12221 can be precisely connected and fitted, thereby realizing a stable connection between the first sub-part 1221 and the second sub-part 1222, and the connection structure is simple and easy to operate.

[0249] Figure 16 This is another structural diagram of the connector according to an embodiment of this application. Figure 4 As shown, the connector portion 122 also has a first wedge surface 1223 and a second wedge surface 1224, and the first wedge surface 1223 of one connector portion 122 abuts against the second wedge surface 1224 of the other connector portion 122.

[0250] It should be understood that a wedge is a plane with an inclined angle, gradually thickening or thinning from one end to the other. The contact of the wedge provides additional friction and self-locking capability. Due to the presence of the wedge, when the two joint portions 122 are subjected to an external force attempting to separate them, the friction between the wedges prevents this separation tendency.

[0251] In some embodiments, when the three connectors 122 are connected to each other and their respective wedge surfaces are in contact with each other, the tilt angle of the wedge surfaces guides the components to be connected at a specific angle.

[0252] In some embodiments, the joint assembly 12 serves as a connecting part 110 within the frame 10, and its stability affects the overall stability of the frame 10. The abutment of the first wedge surface 1223 and the second wedge surface 1224 makes the connection between the joint parts 122 tighter and more stable, thereby enabling more effective transmission and dispersion of force when the frame 10 is subjected to external forces. The wedge surface abutment connection method helps improve the assembly accuracy and reliability of the frame 10. During the assembly process of the frame 10, due to the guiding effect of the wedge surfaces, the joint parts 122 can be more accurately positioned and fitted together, reducing structural deviations caused by installation errors.

[0253] In some embodiments, the plane containing the first wedge surface 1223 and the plane containing the second wedge surface 1224 have a first included angle of 120°.

[0254] It should be understood that the connector assembly 12 is formed by the three connectors 120 being connected to each other in pairs, and the three connector parts 122 are assembled to roughly form a cubic structure. The first wedge surface 1223 and the second wedge surface 1224 of the three connector parts 122 abut against each other to form a 360° angle, thus forming a closed and mutually supporting wedge surface abutment structure between the three interconnected connector parts 122.

[0255] In this embodiment, the plane containing the first wedge surface 1223 and the plane containing the second wedge surface 1224 have an angle of 120°, so that the three identical joints 120 are connected to each other in pairs to form a joint assembly 12, which can form a 360° closed, mutually supporting wedge surface abutment structure, and the force can be effectively transmitted and dispersed among the three interconnected joints 120.

[0256] In some embodiments, the first included angle of the three joints 120 is 120°, and the structural design of the three joints 120 is basically the same, so that the three connecting beams 11 with the same structure can be connected by the three joints 120 with the same structure, and the joints 120 can be assembled in any order. The joints 120 can be produced and assembled as a standard part, which helps to improve the overall forming efficiency of the frame 10.

[0257] In some embodiments, the first wedge surface 1223 includes a groove 12231, and the second wedge surface 1224 includes a protrusion 12241. The protrusion 12241 of one connector portion 122 in the connector assembly 12 is sealed and engaged with the groove 12231 of the other connector portion 122.

[0258] It should be understood that the recessed size of the groove 12231 is the same as the protruding size of the protrusion 12241, so that the two can fit together.

[0259] It should be understood that when the three first connectors 114 are connected to each other, the interlocking grooves 12231 and protrusions 12241 can extend from one side of the outer surface of the first connector 114 to the opposite side, and the two are sealed together, so that the two first connectors 114 connected to each other can achieve a sealed connection.

[0260] In some embodiments, sealant may be injected into the groove 12231 to seal the connection protrusion 12241, or a sealing strip may be installed in the groove 12231 to seal the connection protrusion 12241.

[0261] In some embodiments, a groove 12231 is provided between the abutting first wedge surface 1223 and the second wedge surface 1224 to fit and engage with the protrusion 12241. The concave-convex structure can increase the misalignment shear strength between the abutting first wedge surface 1223 and the second wedge surface 1224, thereby improving the connection strength.

[0262] In some embodiments, the joints of the three connector portions 122 of the connector assembly 12 are coated with sealant.

[0263] It should be understood that sealants can be silicone sealants, polyurethane sealants, or acrylic sealants, etc.

[0264] It should be understood that before applying sealant, the surface of the area to be sealed needs to be thoroughly cleaned to remove impurities such as oil, dust, rust, and moisture. Methods such as wiping with organic solvents, sanding, or blasting can be used to achieve a clean, dry surface with a certain degree of roughness. This facilitates better adhesion and bonding of the sealant, improving the sealing effect. Appropriate application tools should be selected based on the type of sealant and the shape and size of the area to be sealed. Commonly used tools include caulking guns, brushes, and scrapers. During application, the sealant should be applied evenly and continuously to cover the sealing area, minimizing breaks, air bubbles, or uneven thickness. For gap sealing, a filler application method is typically used, filling the entire gap with sealant, slightly raising it above the surface, and then trimming as needed.

[0265] In some embodiments, the sealant can prevent external gases and liquids from entering the interior of the connector assembly 12. By filling the tiny pores at the joint, the sealant forms a continuous, airtight, and watertight barrier, effectively preventing the intrusion of harmful substances such as moisture, oxygen, and corrosive gases, protecting the structural integrity of the connector 120, and extending the service life of the connector assembly 12.

[0266] In some embodiments, the connector portion 122 includes a first connector boss 12212 located on the first sub-portion 1221 and / or a second connector boss 12222 located on the second sub-portion 1222.

[0267] It should be understood that the connector portion 122 may include a first connector boss 12212, wherein the first connector boss 12212 is located in the first sub-portion 1221; the connector portion 122 may also include a second connector boss 12222, wherein the second connector boss 12222 is located in the second sub-portion 1222; the connector portion 122 may also include a first connector boss 12212 and a second connector boss 12222, wherein the first connector boss 12212 is located in the first sub-portion 1221 and the second connector boss 12222 is located in the second sub-portion 1222.

[0268] It should be understood that the first connector boss 12212 is located on the outer surface of the first sub-part 1221 and protrudes outward from the first sub-part 1221. Similarly, the second connector boss 12222 is located on the outer surface of the second sub-part 1222 and protrudes outward from the second sub-part 1222.

[0269] In some embodiments, the first connector boss 12212 and the second connector boss 12222 can be located at the connection between the connector 120 and the connecting beam 11, and connected with the second boss 1113 on the connecting beam 11, together providing waterproofing for the frame 10.

[0270] In some embodiments, the first connector boss 12212 and the second connector boss 12222 may also be located at the connection between the first sub-part 1221 and the second sub-part 1222.

[0271] In some embodiments, when the joint portion 122 is connected to other components (such as the connecting beam 11 or other joint portions 122), the first joint boss 12212 and the second joint boss 12222, because their height is higher than the plane containing the other outer surfaces of the joint portion 122, have a waterproof function. In some applications where water may come into contact with the surface, they can effectively prevent water from flowing into the interior of the frame 10 through the connection between the three joint portions 122. Furthermore, the first joint boss 12212 can significantly enhance the stability of the connection portion 110. For example, when welded to the connecting beam 11, the first joint boss 12212 and the second joint boss 12222 can serve as an additional welding support surface, increasing the welding area and making the weld more uniform and robust, thereby improving the connection strength between the joint portion 122 and the connecting beam 11.

[0272] Figure 17 This is another top view of the framework of an embodiment of this application. (See attached image.) Figure 17 As shown, the first joint boss 12212, the second joint boss 12222 and the second boss 1113 on one side of the frame 10 form a continuous boss 16.

[0273] It should be understood that the boss 16 is a continuous boss 16, that is, the first joint boss 12212 and the second joint boss 12222 can be connected to the second boss 1113 on the connecting beam 11, and the height of the first joint boss 12212 and the second joint boss 12222 is the same as the height of the second boss 1113.

[0274] It should be understood that the boss 16 may include the first connector boss 12212, the second connector boss 12222 and the second boss 1113.

[0275] It should be understood that the frame 10 is cubic in shape, including six faces, each of which is a quadrilateral. The boss 16 may include four second bosses 1113, four first joint bosses 12212 and four second joint bosses 12222, and the four second bosses 1113, four first joint bosses 12212 and four second joint bosses 12222 are interconnected to form a complete approximately quadrilateral or quadrilateral frame.

[0276] In some embodiments, a rectangular boss 16 can effectively protect the surface covered by the boss 16, further improving the sealing system of the frame 10 on that surface. The boss 16 serves to prevent external dust, moisture, corrosive gases, etc. from entering the interior of the frame 10, and to prevent the medium inside the frame 10 from leaking into the external environment.

[0277] In some embodiments, each of the six faces of the frame 10 includes a boss 16, which is a quadrilateral.

[0278] In some embodiments, each of the six faces of the frame 10 includes a quadrilateral boss 16, that is, the boss 16 is regarded as a whole, and the frame 10 includes a total of six bosses 16.

[0279] In some embodiments, since the frame 10 is provided with bosses 16 on all six sides, it can achieve all-round protection in terms of sealing. In some application scenarios that require preventing external substances from entering the interior of the frame 10 or avoiding leakage of internal media, the bosses 16 can cooperate with sealing materials or form a sealing structure through their own tight fit, effectively blocking leakage channels in all directions.

[0280] In some embodiments, the outer surface of the connecting beam 11 and the outer surface of the corresponding joint assembly 12 are continuous surfaces.

[0281] It should be understood that the outer surface of the connecting beam 11 and the corresponding outer surface of the joint assembly 12 are continuous surfaces. That is, from a geometrical perspective, there are no obvious steps, gaps or abrupt changes at the connection between the outer surface of the connecting beam 11 and the outer surface of the joint assembly 12. The outer surface of the connecting beam 11 and the outer surface of the joint assembly 12 join together to form a basically continuous and extended surface.

[0282] In some embodiments, there is no connection gap between the outer surface of the joint assembly 12 and the outer surface of the connecting beam 11, making the overall structure of the frame 10 more aesthetically pleasing and neat. Furthermore, there is no stress abrupt change at the connection position, allowing forces to be distributed and transmitted more naturally along the continuous outer surface of the structure, and enabling forces to be transmitted more evenly and smoothly between the connecting beam 11 and the joint assembly 12.

[0283] In some embodiments, when the frame 10 requires surface treatment such as corrosion protection, insulation or coloring, the design of a continuous surface can also improve the continuity, uniformity and consistency of the surface treatment, thereby improving the surface protection effect and decorative effect of the frame 10.

[0284] In some embodiments, the connecting beam 11 is welded and fixed at the connection point with the plug portion 121.

[0285] It should be understood that the connection beam 11 and the plug part 121 are fixed by welding, and arc welding, laser welding or ultrasonic welding can be performed on the end face of the connection part 110 and the interface position of the plug part 121.

[0286] It should be understood that welding can also be performed by plug welding or other methods between the plug part 121 and the side wall of the connecting beam 11, which results in a larger welding area and improved welding strength.

[0287] In some embodiments, welding not only fixes the connecting beam 11 to the connector assembly 12, but also seals the connection interface, improving the sealing performance of the frame 10. Furthermore, the welding of the connecting beam 11 to the plug portion 121 greatly enhances the structural stability of the frame 10. The robust connection formed by welding can effectively transmit and withstand external forces, making the frame 10 less prone to deformation and loosening under stress.

[0288] In some embodiments, the outer surface treatment of the frame 10 includes at least one of the following treatment methods: electrophoresis, powder coating, or painting.

[0289] It should be understood that electrophoresis is a surface treatment technology that uses an electric field to cause charged particles to move in a solution and deposit onto the surface of a workpiece. During the electrophoresis process, the frame 10, as the workpiece, is immersed in a bath containing electrophoretic paint. After the current is applied, the charged resin particles in the paint migrate to the surface of the frame 10 under the action of the electric field force, and deposit a uniform and dense paint film on the surface of the frame 10, ensuring the consistency of the sealing and protective performance of the entire surface of the frame 10.

[0290] It should be understood that powder coating involves using a spray gun powered by compressed air to evenly spray powder onto the outer surface of the frame 10, followed by high-temperature baking to melt and solidify the powder, forming a robust coating. After high-temperature curing, the powder-coated layer exhibits high hardness and wear resistance, effectively resisting mechanical damage such as scratches and impacts that the frame 10 may encounter during use, protecting the surface of the frame 10 from damage, and maintaining its good appearance and structural integrity. The powder coating also forms an effective insulating barrier, increasing the sealing performance of the frame 10.

[0291] It should be understood that spray painting involves atomizing liquid paint using a spray gun and applying it to the surface of the frame 10. The paint then dries in the air or cures through baking to form a coating. A wide variety of paints are used in spray painting, including solvent-based and water-based paints. Different types of paints have different performance characteristics and applicable ranges. The spray painting process can select different types of paint according to actual needs to meet various special performance requirements, such as weather resistance, chemical resistance, and insulation.

[0292] In some embodiments, before surface treatment of the frame 10, the second through holes 1112 and the first through holes 1122 can be sealed. Since the outer surface of the frame 10 may lose its conductivity after surface treatment, thus blocking the second through holes 1112 and the first through holes 1122, when bolts, nuts, or other connecting parts are connected to the second through holes 1112 and the first through holes 1122, the connecting parts can achieve equipotential connection with the frame 10 by contacting the hole walls of the second through holes 1112 and the first through holes 1122. This ensures that the potential of each structure and part of the frame 10 is consistent, reducing the risk of electrical damage to the frame 10 due to potential differences.

[0293] In some embodiments, by appropriately selecting and applying these treatment methods, the protective performance, appearance quality, and service life of the frame 10 can be effectively improved.

[0294] Figure 18 This is another structural diagram of the framework of an embodiment of this application. Figure 19 This application's embodiment provides another part of its structural diagram. (See diagram below.) Figure 18 and Figure 19 As shown, the frame 10 includes a door panel 17, which is fixed to the frame 10 by a hinge 153 provided in the second through hole 1112.

[0295] It should be understood that after the skin 13 is installed on the frame 10, a door panel 17 can be installed to enhance its practicality and improve the ease of use of the frame 10.

[0296] It should be understood that the hinge 153 is typically composed of two or more metal pieces (usually made of stainless steel, carbon steel, or aluminum alloy). These metal pieces are formed through specific processes and have a certain thickness and strength to withstand the force generated when the door panel 17 opens and closes. One metal piece is fixed at the second through hole 1112 of the frame 10 as a fixed wing; the other is connected to the door panel 17 as a movable wing. The two metal pieces are connected by a pin, which is generally made of high-strength alloy steel. The surface is finely machined and heat-treated, giving it good wear resistance and corrosion resistance. It can maintain stable rotational performance during long-term and frequent rotation. Its diameter and length are determined according to the load-bearing capacity and design requirements of the hinge 153.

[0297] In some embodiments, the door panel 17 provides effective protection and isolation for the components or space inside the frame 10. After the door panel 17 is connected to the frame 10 via the hinge 153, it can isolate these internal components from the external environment when closed, preventing dust, moisture, foreign objects, etc. from entering the frame 10, avoiding damage to the internal components, extending their service life, and also improving the safety and reliability of the equipment.

[0298] In some embodiments, the door panel 17, connected by the hinge 153, can be easily opened and closed, enhancing the convenience of operating equipment inside the frame 10 or retrieving items from within the frame 10. Moreover, the door panel 17 does not require excessive additional space during opening and closing, making the entire work area neater and more efficient, especially suitable for work environments with limited space.

[0299] Combination Figures 3 to 13 This application provides a connecting beam 11, which extends along a first direction and includes two connecting portions 110 disposed opposite to each other along the first direction. The connecting beam 11 includes two outer walls 111 and at least one inner wall 112. The first wall 1121 of the at least one inner wall 112 includes a plurality of first through holes 1122. The two outer walls 111 are perpendicular to each other, and the second wall 1111 of the two outer walls 111 includes a plurality of second through holes 1112.

[0300] In some embodiments, a plurality of second through holes 1112 are arranged along a first direction; wherein, the connecting beam 11 further includes a second boss 1113 extending along the first direction outside the second wall 1111, the second boss 1113 being located on the same side of the plurality of second through holes 1112.

[0301] In some embodiments, a plurality of first through holes 1122 are arranged along a first direction; wherein at least one inner wall 112 includes two inner walls 112 perpendicular to each other, and the connecting beam 11 includes a first boss 1123 extending along the first direction outside the first wall 1121, the first boss 1123 being located on the same side of the plurality of first through holes 1122.

[0302] In some embodiments, the two inner walls 112 include two first walls 1121, each first wall 1121 having a first boss 1123 on both sides, and the two outer walls 111 include two second walls 1111, each second wall 1111 having a second boss 1113 on the side facing the first wall 1121.

[0303] In some embodiments, the number of the plurality of first through holes 1122 is greater than the number of the plurality of second through holes 1112.

[0304] In some embodiments, a plurality of first through holes 1122 are hexagonal through holes arranged at equal intervals and / or a plurality of second through holes 1112 are hexagonal through holes arranged at equal intervals.

[0305] It should be understood that the shape of the hexagonal through hole is compatible with hexagonal head bolts. When a hexagonal head bolt is used to make a connection through the hexagonal through hole, the six inner angles of the hexagonal through hole can effectively limit the hexagonal head bolt, preventing the bolt from rotating during use. The connection can be secured without the need for additional anti-rotation devices (such as spring washers, locking washers, etc.).

[0306] It should be understood that hexagonal through holes provide convenient space for tightening or loosening bolts using tools such as wrenches. Operators can directly insert wrenches into the hexagonal through holes to operate the bolts. Compared to round holes, which may require special tools such as sockets in some cases, hexagonal through holes offer more direct and convenient operation, improving the efficiency of installation and maintenance.

[0307] In some embodiments, the shape of the hexagonal through-hole can enhance the structural performance of the connecting beam 11. Due to its hexagonal structure, the hexagonal bolt connection has a stronger breaking torque than the round hole bolt connection. When external torque is applied, the six corners of the hexagon can act as support points, distributing the torque evenly over a larger area, thus enabling it to withstand greater torque without failure. This improves the overall torsional and bending mechanical properties of the connecting beam 11 and enhances the stability of the frame 10 under complex stress environments.

[0308] In some embodiments, the connecting beam 11 is formed by continuous bending, and the connection is fixed by welding.

[0309] It should be understood that the connecting beam 11 is processed by continuous bending, that is, the raw material (usually metal sheet or profile) is bent multiple times in sequence on the bending equipment according to the predetermined angle and size requirements, gradually forming the complex shape of the connecting beam 11.

[0310] It should be understood that the continuous bending process can effectively transform planar materials into connecting beams 11 with specific three-dimensional structures, achieving efficient material utilization and shape shaping. For example, for some connecting beams 11 with specific cross-sectional shapes and bending angles, the shape of the bending die and the bending sequence can be controlled to ensure that the accuracy and angle of each bend meet the design standards, thereby producing high-quality, versatile connecting beams 11.

[0311] In some embodiments, the connecting beam 11 is fabricated using a continuous bending process, which can meet the diverse shape requirements of the connecting beam 11 in the frame 10 structure. For example, when the position and number of the bosses 16 are different, the target connecting beam 11 can be obtained quickly. Compared with other processing methods (such as casting, forging, etc.), it has the advantages of low cost, high production efficiency, and easy control of processing accuracy.

[0312] It should be understood that welding is used to fix the connecting beam 11 at the bends to improve the structural strength and stability of the connecting beam 11.

[0313] It should be understood that the choice of welding process depends on factors such as the material type, thickness, and specific application requirements of the connecting beam 11. Common welding methods include arc welding, resistance welding, and laser welding, which are not limited in this application.

[0314] In some embodiments, welding enables the connection of the connecting beams 11 to be firm and reliable, forming a continuous load-bearing whole, effectively transmitting and bearing various loads in the frame 10.

[0315] Another embodiment of this application provides a frame 10, which includes a plurality of connecting beam assemblies 131. Each connecting beam assembly 131 includes a connecting beam 11 and two connectors 120. The connecting beam 11 extends along a first direction and includes two connecting portions 110 disposed opposite to each other along the first direction. Each connector 120 includes a connector portion 122 and a plug portion 121 that are connected to each other. Each plug portion 121 is connected to one of the connecting portions 110 of the connecting beam 11 to form a connecting beam assembly 131. In this case, one of the connector portions 122 of each of the three connecting beam assemblies 131 is connected to each other to form three mutually perpendicular connecting beam assemblies 131.

[0316] In some embodiments, the frame 10 includes a plurality of connecting beam assemblies 131, which are interconnected to form the frame 10. The connecting beam assemblies 131 are the basic building blocks of the frame 10, meaning that the frame 10 is not an integral structure, but is assembled from a plurality of connecting beam assemblies 131.

[0317] It should be understood that the frame 10 may include twelve connecting beam assemblies 131, which are connected in sequence to form a cubic frame 10.

[0318] In some embodiments, the multiple connecting beam assemblies 131 may be connected by means of screwing, tenoning, or welding.

[0319] It should be understood that each connector 110 is connected to a plug 121, and the connector 110 and the plug 121 are connected in the same way.

[0320] It should be understood that during assembly, the connecting beam 11 can be connected to the joint 120 to form the connecting beam assembly 131. The connecting beam assembly 131, as a whole, can be assembled into the frame 10.

[0321] It should be understood that the connecting beam assembly 131 can be surface-treated, and the assembled frame 10 can also be surface-treated.

[0322] It should be understood that the connecting beam 11 extends along a first direction and includes two connecting portions 110 disposed opposite to each other along the first direction. The connecting beam 11 includes two outer walls 111 and at least one inner wall 112. The two outer walls 111 are perpendicular to each other. The second wall 1111 of the two outer walls 111 includes a plurality of second through holes 1112. The first wall 1121 of the at least one inner wall 112 includes a plurality of first through holes 1122.

[0323] It should be understood that the connecting beam 11 may also include the connecting beam 11 in any of the embodiments, which will not be described in detail here.

[0324] It should be understood that each connector 120 includes a connector portion 122 and a plug portion 121 that are interconnected. The connector portion 122 includes a first sub-part 1221 and a second sub-part 1222 that are perpendicular to each other. The outer surface of the first sub-part 1221 is recessed with a countersunk platform 12210. At least a portion of the second sub-part 1222 of one connector portion 122 in the connector assembly 12 is embedded in the countersunk platform 12210 of the other connector portion 122, so that the outer surfaces of the interconnected first sub-part 1221 and the second sub-part 1222 are flush.

[0325] It should be understood that connector 120 may also include connector 120 in any embodiment, which will not be described further here.

[0326] In some embodiments, compared to a pre-formed frame 10, the volume of a single connecting beam assembly 131 is significantly reduced, and the individual connecting beam assemblies 131 are processed separately, reducing processing difficulty. The frame 10 includes only one type of part, with a unified connection method, facilitating transportation and installation, and the parts are highly interchangeable and easy to replace.

[0327] Figure 20 This is a structural diagram of the connecting beam assembly according to an embodiment of this application. Figure 20 As shown, the connecting beam assembly includes a connecting beam and two joints at its two ends, wherein the two joints are installed in opposite directions so that multiple connecting beam assemblies can be connected to each other.

[0328] In some embodiments, an energy storage device 100 includes a frame 10 and a plurality of battery devices 30 disposed within the frame 10. The frame 10 includes twelve connecting beams 11 and eight connector assemblies 12. The connecting beams 11 extend along a first direction and include two connecting portions 110 disposed opposite each other along the first direction. The connector assemblies 12 include three mutually perpendicular plug portions 121. Each connecting portion 110 is connected to one plug portion 121 to form the frame 10.

[0329] It should be understood that the frame 10 may also include the frame 10 in any embodiment.

[0330] Figure 21This is a structural diagram of an energy storage system according to an embodiment of this application. Figure 21 As shown, the energy storage system 200 may include a power conversion device 210 and an energy storage device 100. The power conversion device 210 is used to electrically connect the power generation device 220 and the energy storage device 100. The energy storage device 100 includes a frame 10 and a plurality of battery devices 30 disposed within the frame 10. The frame 10 includes twelve connecting beams 11 and eight connector assemblies 12. The connecting beams 11 extend along a first direction and include two connecting portions 110 disposed opposite to each other along the first direction. The connector assemblies 12 include three mutually perpendicular plug portions 121. Each connecting portion 110 is connected to one plug portion 121 to form the frame 10.

[0331] It should be understood that the frame 10 may also include the frame 10 in any embodiment.

[0332] It should be understood that the power conversion device 210 can also be housed within the frame 10.

[0333] Figure 22 This is a structural diagram of the charging network according to an embodiment of this application. Figure 22 As shown, a charging network 300 includes a charging pile 310 and an energy storage device 100, the energy storage device 100 being used to provide electrical energy to the charging pile 310. The energy storage device 100 includes a frame 10 and a plurality of battery devices 30 disposed within the frame 10. The frame 10 includes twelve connecting beams 11 and eight connector assemblies 12. The connecting beams 11 extend along a first direction and include two connecting portions 110 disposed opposite each other along the first direction. The connector assemblies 12 include three mutually perpendicular plug portions 121. Each connecting portion 110 is connected to one plug portion 121 to form the frame 10.

[0334] It should be understood that the frame 10 may also include the frame 10 in any embodiment.

[0335] It should be understood that the charging network 300 may also include the energy storage system 200.

[0336] The charging pile 310 and the battery device 30 in the energy storage device 100 can be electrically connected via a cable, and the battery device 30 can supply its stored electrical energy to the charging pile 310. The charging pile 310 may have one or more connectors 320 for connecting to electrical equipment, thereby replenishing the energy of the equipment. The energy storage device 100 may be located inside the charging pile 310 (e.g., an integrated charging and energy storage unit) or outside the charging pile 310.

[0337] In some embodiments, the charging network 300 may include a charging pile 310 and an energy storage system 200. The charging pile 310 is electrically connected to the energy storage system 200, which provides electrical energy to the charging pile 310. The charging pile 310 is electrically connected to a battery device 30 in the energy storage system 200 via a cable, and the battery device 30 can provide its stored electrical energy to the charging pile 310.

[0338] According to some embodiments of this application, see Figures 2 to 19 This application provides a frame 10, which includes a plurality of connecting beams 11 and a plurality of connector assemblies 12. The connecting beams 11 extend along a first direction and include two connecting portions 110 disposed opposite each other along the first direction. The connecting beams 11 include at least one inner wall 112 located inside the frame 10, and a first wall 1121 of the at least one inner wall 112 includes a plurality of first through holes 1122. The connector assembly 12 includes three mutually perpendicular plug portions 121. Each connecting portion 110 is connected to one plug portion 121 to form the frame 10. The plurality of first through holes 1122 are arranged along the first direction. The connecting beams 11 also include a first boss 1123 extending along the first direction outside the first wall 1121, and the first boss 1123 is located on the same side of the plurality of first through holes 1122. The connecting beams 11 include two mutually perpendicular outer walls 111 located outside the frame 10, and a second wall 1111 of the two outer walls 111 includes a plurality of second through holes 1112. Multiple second through holes 1112 are arranged along a first direction; wherein, the connecting beam 11 further includes a second boss 1113 extending along the first direction outside the second wall 1111, the second boss 1113 being located on the same side of the multiple second through holes 1112. The number of multiple first through holes 1122 is greater than the number of multiple second through holes 1112. The two outer walls 111 are perpendicular to the two inner walls 112, each of the two inner walls 112 includes a first boss 1123 on both sides, and each of the two outer walls 111 includes a second boss 1113 on the side connecting to each inner wall 112. The multiple second through holes 1112 are hexagonal through holes arranged at equal intervals and / or the multiple first through holes 1122 are hexagonal through holes arranged at equal intervals.

[0339] The frame 10 includes a skin 13 disposed on the outer side of the frame 10, and the skin 13 is bolted to the frame 10 via a second through hole 1112. The frame 10 includes a first sealing strip 14 located between the second wall 1111 and the skin 13; wherein the projection of the first sealing strip 14 along the thickness direction of the second wall 1111 and the projection of the second boss 1113 along the thickness direction of the second wall 1111 have no overlapping area, and the first sealing strip 14 is hollowed out at multiple second through holes 1112, and the thickness dimension of the first sealing strip 14 located between the skin 13 and the second wall 1111 is the same as the height of the second boss 1113. The ratio of the thickness dimension of the first sealing strip 14 after compression to its thickness dimension before compression is greater than or equal to 0.5 and less than or equal to 0.6.

[0340] The frame 10 includes a first rivet nut 151 disposed in a first through hole 1122 and / or a second rivet nut 152 disposed in a second through hole 1112. The flange section height of the first rivet nut 151 is the same as the height of the first boss 1123, and the flange section height of the second rivet nut 152 is the same as the height of the second boss 1113.

[0341] The connector assembly 12 includes three identical interconnected connectors 120. Each connector 120 includes a connector portion 122 and a plug portion 121. The three connector portions 122 are interconnected to form the connector assembly 12. Each connector portion 122 includes a first sub-portion 1221 and a second sub-portion 1222 that are perpendicular to each other. The outer surface of the first sub-portion 1221 has a recessed countersunk platform 12210. At least a portion of the second sub-portion 1222 of one connector portion 122 is embedded in the countersunk platform 12210 of the other connector portion 122, so that the outer surfaces of the interconnected first sub-portion 1221 and the second sub-portion 1222 are flush. The countersunk platform 12210 of the first sub-portion 1221 has a first connecting hole 12211, and the second sub-portion 1222 has a second connecting hole 12221. The first connecting hole 12211 and the second connecting hole 12221 are engaged to connect the first sub-portion 1221 and the second sub-portion 1222. The connector portion 122 also has a first wedge surface 1223 and a second wedge surface 1224. The first wedge surface 1223 of one connector portion 122 abuts against the second wedge surface 1224 of another connector portion 122. The plane containing the first wedge surface 1223 and the plane containing the second wedge surface 1224 form a first angle of 120°. The first wedge surface 1223 includes a groove 12231, and the second wedge surface 1224 includes a protrusion 12241. The protrusion 12241 of one connector portion 122 in the connector assembly 12 is sealed and engaged with the groove 12231 of another connector portion 122. The connection of the three connector portions 122 of the connector assembly 12 is coated with sealant. The connector portion 122 includes a first connector boss 12212 located in the first sub-portion 1221 and / or a second connector boss 12222 located in the second sub-portion 1222.

[0342] On one side of the frame, the first joint boss 12212, the second joint boss 12222, and the second boss 1113 form a continuous boss 16. All six sides of the frame 10 include bosses 16, and the bosses 16 are quadrilaterals.

[0343] The outer surface of the connecting beam 11 and the corresponding outer surface of the connector assembly 12 are continuous surfaces. The connecting beam 11 is welded and fixed at the connection point with the plug portion 121. The outer surface treatment of the frame 10 includes at least one of the following methods: electrophoresis, powder coating, or painting. The frame 10 includes a door panel 17, which is fixed to the frame 10 by a hinge 153 provided in the second through hole 1112. The connecting beam 11 is formed by continuous bending, and the connection point is welded and fixed.

[0344] 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. A frame, characterized in that, The frame comprises: a plurality of connecting beams (11) extending along a first direction, each of the connecting beams (11) comprising two connecting portions (110) oppositely arranged along the first direction, and at least one inner wall (112) located inside the frame, a first wall (1121) of the at least one inner wall (112) comprising a plurality of first through holes (1122); a plurality of joint assemblies (12) each comprising three mutually perpendicular plug portions (121); wherein each of the connecting portions (110) is connected with one of the plug portions (121) to form the frame.

2. The frame of claim 1, wherein, The plurality of first through holes (1122) are arranged along the first direction. The at least one inner wall (112) comprises two mutually perpendicular inner walls (112), and the connecting beam (11) further comprises a first boss (1123) extending along the first direction and located outside the first wall (1121), the first boss (1123) being located on the same side of the plurality of first through holes (1122).

3. The frame of claim 2, wherein, The connecting beam (11) comprises two mutually perpendicular outer walls (111) located outside the frame, a second wall (1111) of the two outer walls (111) comprising a plurality of second through holes (1112).

4. The frame of claim 3, wherein, The plurality of second through holes (1112) are arranged along the first direction. The connecting beam (11) further comprises a second boss (1113) extending along the first direction and located outside the second wall (1111), the second boss (1113) being located on the same side of the plurality of second through holes (1112).

5. The frame of claim 3, wherein, The number of the plurality of first through holes (1122) is greater than the number of the plurality of second through holes (1112).

6. The frame of claim 4, wherein, The frame comprises a skin (13) arranged outside the frame, the skin (13) being fixed on the frame by bolt connection with the second through holes (1112).

7. The frame of claim 6, wherein, The frame comprises a first sealing strip (14) located between the second wall (1111) and the skin (13). The projection of the first sealing strip (14) along the thickness direction of the second wall (1111) has no overlapping area with the projection of the second boss (1113) along the thickness direction of the second wall (1111), and the first sealing strip (14) is hollowed out at the plurality of second through holes (1112).

8. The frame of claim 7, wherein, The thickness dimension of the first sealing strip (14) located between the skin (13) and the second wall (1111) is the same as the height of the second boss (1113).

9. The frame of claim 7, wherein, The ratio of the thickness dimension of the first sealing strip (14) located between the skin (13) and the second wall (1111) to the thickness dimension of the first sealing strip (14) is greater than or equal to 0.5 and less than or equal to 0.

6.

10. The frame of claim 9, wherein, The connecting beam (11) comprises the two outer walls (111) and the two inner walls (112), the two outer walls (111) and the two inner walls (112) are perpendicular to each other, each of the two inner walls (112) comprises the first boss (1123) on both sides, and each of the two outer walls (111) comprises the second boss (1113) connected to each inner wall (112).

11. The frame of claim 8, wherein, The frame comprises a first pull nut (151) arranged in the first through hole (1122) and / or a second pull nut arranged in the second through hole (1112). The flange section height of the first pull nut (151) is the same as the height of the first boss (1123), and the flange section height of the second pull nut is the same as the height of the second boss (1113).

12. The frame of claim 4, wherein, The joint assembly (12) comprises three identical joints (120) connected to each other, each joint (120) comprises a joint part (122) and a plug part (121), and three joint parts (122) are connected to each other to form the joint assembly (12).

13. The frame of claim 12, wherein, The joint part (122) comprises a first sub-part (1221) and a second sub-part (1222) perpendicular to each other, the first sub-part (1221) is recessed with a sunken platform (12210) on the outer surface, and at least part of the second sub-part (1222) of one joint part (122) in the joint assembly (12) is embedded in the sunken platform (12210) of another joint part (122), so that the outer surfaces of the first sub-part (1221) and the second sub-part (1222) connected to each other are flush.

14. The frame of claim 13, wherein, The sunken platform (12210) of the first sub-part (1221) is provided with a first connecting hole (12211), and the second sub-part (1222) is provided with a second connecting hole (12221), and the first connecting hole (12211) and the second connecting hole (12221) are connected and matched to connect the first sub-part (1221) and the second sub-part (1222).

15. The frame of claim 12, wherein, The joint part (122) also has a first wedge surface (1223) and a second wedge surface (1224), and the first wedge surface (1223) of one joint part (122) in the joint assembly (12) abuts against the second wedge surface (1224) of another joint part (122).

16. The frame of claim 15, wherein, The plane where the first wedge surface (1223) is located and the plane where the second wedge surface (1224) is located have a first included angle, and the first included angle is 120°.

17. The frame of claim 15, wherein, The first wedge surface (1223) comprises a groove (12231), and the second wedge surface (1224) comprises a protrusion (12241), and the protrusion (12241) of one joint part (122) in the joint assembly (12) is sealingly connected with the groove (12231) of another joint part (122).

18. The frame of claim 13, wherein, The joint assembly (12) is coated with sealant at the joint of the three joint parts (122).

19. The frame of claim 18, wherein, The joint part (122) comprises a first joint boss (12212) located at the first sub part (1221) and / or a second joint boss (12222) located at the second sub part (1222).

20. The frame of claim 19, wherein, The first joint boss (12212), the second joint boss (12222) and the second boss (1113) on one face of the frame constitute a continuous boss (16).

21. The frame of claim 20, wherein, Six faces of the frame comprise the boss (16), and the boss (16) is a quadrilateral.

22. The frame of any one of claims 1 to 21, wherein, The outer surface of the connecting beam (11) and the outer surface of the corresponding joint assembly (12) are continuous surfaces.

23. The frame of any one of claims 1 to 21, wherein, The connecting beam (11) is welded and fixed at the joint with the plug part (121).

24. The frame of any one of claims 1 to 21, wherein, The frame outer surface treatment method comprises at least one of the following treatment methods: electrophoresis, powder spraying or paint spraying.

25. The frame of any one of claims 3 to 21, wherein, The frame comprises a door panel (17) fixed on the frame through a hinge (153) arranged at the second through hole (1112).

26. A connecting beam, characterized by The connecting beam extends in a first direction, and the connecting beam comprises two connecting parts (110) arranged opposite to each other in the first direction, and the connecting beam comprises: At least one inner wall (112), wherein a first wall (1121) of the at least one inner wall (112) comprises a plurality of first through holes (1122); Two outer walls (111) perpendicular to each other, wherein a second wall (1111) of the two outer walls (111) comprises a plurality of second through holes (1112).

27. The tie beam of claim 26, wherein, The plurality of first through holes (1122) are arranged in the first direction. The at least one inner wall (112) comprises two inner walls (112) perpendicular to each other, the connecting beam comprises a first boss (1123) extending in the first direction outside the first wall (1121), and the first boss (1123) is located on the same side of the plurality of first through holes (1122).

28. The tie beam of claim 27, wherein, The plurality of second through holes (1112) are arranged in the first direction. The connecting beam further comprises a second boss (1113) extending in the first direction outside the second wall (1111), and the second boss (1113) is located on the same side of the plurality of second through holes (1112).

29. The tie beam of claim 28, wherein, The number of the plurality of first through holes (1122) is greater than the number of the plurality of second through holes (1112).

30. The tie beam of claim 28, wherein, The two inner walls (112) comprise two first walls (1121), each first wall (1121) comprises the first boss (1123) on both sides, and the two outer walls (111) comprise two second walls (1111), each second wall (1111) comprises the second boss (1113) towards one side of the first wall (1121).

31. The tie beam of claim 29, wherein, The plurality of first through holes (1122) are hexagonal through holes arranged at equal intervals, and / or the plurality of second through holes (1112) are hexagonal through holes arranged at equal intervals.

32. The connecting beam according to any one of claims 26 to 31, characterized in that, The connecting beam is formed by continuous bending and the connecting part after bending is welded and fixed.

33. An energy storage device, comprising: Comprising: a frame comprising the frame according to any one of claims 1 to 25; a plurality of battery devices (30) disposed within the frame.

34. A charging network characterized by, Comprising a charging pile (310) and the energy storage device according to claim 33, wherein the energy storage device is used to provide electric energy for the charging pile (310).

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