Framework, energy storage device and charging network

Abstract

The embodiment of the utility model provides a framework, an energy storage device and a charging network. The frame comprises a plurality of connecting beams which extend along a first direction; a plurality of first joint assemblies, wherein each first joint assembly comprises three plug parts which are perpendicular to each other; a plurality of second joint assemblies, wherein each second joint assembly comprises four plug parts; wherein each connecting part is connected with one plug part to form a frame with at least two accommodating spaces. The same connecting beam and the two different connector assemblies are combined, the frame with at least two containing spaces can be formed, and therefore the types of parts installed on the frame are simplified, the parts are convenient to transport, and in addition, various storage requirements can be met through the different containing spaces.

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 energy storage technology, and more specifically, to a framework, energy storage device, and charging network. Background Technology

[0003] The current frame consists of two square frames, upper and lower, and upright profiles connecting them. This means the frame cannot be completely disassembled into individual profile beams for easy transport. Furthermore, the current frame has only one compartment, making it impossible to divide into separate sections, thus failing to meet the diverse storage needs within the same energy storage device. Therefore, developing a frame that is easily disassembled and allows for compartmentalization is of significant practical importance. Utility Model Content

[0004] This application provides a frame, energy storage device, and charging network that can simplify the types of parts and enable compartmentalized processing of the frame to meet various storage needs.

[0005] In a first aspect, a frame is provided, comprising: a plurality of connecting beams extending along a first direction, the connecting beams including two connecting portions disposed opposite each other along the first direction; a plurality of first connector assemblies including three mutually perpendicular plug portions; a plurality of second connector assemblies including four of the plug portions, wherein three of the plug portions are mutually perpendicular, and a third plug portion is disposed opposite to one of the three mutually perpendicular plug portions in the same direction; wherein each connecting portion is connected to one of the plug portions to form the frame having at least two accommodating spaces.

[0006] In the embodiments of this application, by using the same connecting beam combined with two different joint assemblies, a frame with at least two accommodating spaces can be formed, thereby simplifying the types of frame installation parts and making these parts easy to transport. In addition, various storage needs can be met by using different accommodating spaces.

[0007] In some embodiments of the first aspect, the connecting beam includes two mutually perpendicular outer walls located outside the frame, the first of the two outer walls including a plurality of first through holes.

[0008] In this embodiment, a first through hole is provided on the outer wall of the frame, which allows for the installation and fixation of parts such as the outer skin, hinges, and door lock limiters to the frame, thereby achieving the perfection of the frame.

[0009] In some embodiments of the first aspect, the plurality of first through holes are arranged along the first direction; wherein 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.

[0010] In this embodiment, the arrangement direction of the first through holes is set to be the same as the extension direction of the connecting beam, which allows for more orderly installation of parts on the outer wall of the frame. A first boss located on the same side of the multiple first through holes on the connecting beam can limit the installation of the first sealing strip, thereby achieving a sealed and waterproof frame.

[0011] In some embodiments of the first aspect, the frame includes a skin disposed on the outside of the frame, the skin being bolted to the frame via the first through hole.

[0012] In this embodiment, a skin is provided on the outside of the frame to achieve a sealed and waterproof structure. Using bolts to fix the skin to the frame increases the tightness of the connection between the skin and the frame.

[0013] In some embodiments of the first aspect, the frame includes a first sealing strip located between the first wall and the skin; wherein the projection of the first sealing strip along the thickness direction of the first wall does not overlap with the projection of the first boss along the thickness direction of the first wall, and the first sealing strip is hollowed out at the plurality of first through holes.

[0014] In this embodiment, a first sealing strip is provided on the outer wall of the frame to improve the sealing and waterproofing performance of the frame. Setting the first sealing strip to not overlap with the boss improves the regularity of the boss surface, thereby improving the uniformity of the frame surface. Hollowing out the first sealing strip at the first through hole facilitates the installation of bolts at the first through hole, thus improving the tightness of the connection between the first sealing strip and the outer wall of the frame.

[0015] In some embodiments of the first aspect, the thickness of the first sealing strip located between the skin and the first wall is the same as the height of the first boss.

[0016] In this embodiment, setting the thickness of the first sealing strip to be the same as the height of the first boss allows the mounting surface of the part to fit against the frame surface when the part is installed on the outside of the frame, thereby improving the stability of the part installation.

[0017] In some embodiments of the first aspect, the ratio of the thickness dimension of the first sealing strip located between the skin and the first 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.

[0018] In this embodiment, the ratio of the thickness of the first sealing strip after compression by the skin and the first wall to the thickness before compression is set in the range of 0.5 to 0.6. This can ensure that the first sealing strip achieves a sealing and waterproofing effect after compression, while also preventing the first sealing strip from losing its elasticity due to excessive compression.

[0019] In some embodiments of the first aspect, the connecting beam further includes at least one inner wall located inside the frame, and a second wall of the at least one inner wall includes a plurality of second through holes for bolt connection to install plates or brackets.

[0020] In this embodiment, a second through hole is provided on the inner wall of the frame, which allows for the installation and fixing of internal plates, brackets and other parts to the frame, thereby improving the frame.

[0021] In some embodiments of the first aspect, the frame includes a first rivet nut disposed in the first through hole and / or a second rivet nut disposed in the second through hole; wherein the flange section height of the first rivet nut is the same as the height of the first boss.

[0022] In this embodiment, by providing a rivet nut in the first or second through hole, the tightness of the connection between the first or second through hole and the corresponding part can be enhanced. Setting the height of the flange section of the first rivet nut and the height of the first boss to be the same allows the mounting surface of the part to fit snugly against the frame surface when the part is installed on the outside of the frame, thereby improving the stability of the part installation.

[0023] In some embodiments of the first aspect, the first connector assembly includes three identical interconnected first connectors, each of the first connectors including a first connector portion and a plug portion, the three first connector portions being interconnected to form the first connector assembly.

[0024] In this embodiment, the first connector assembly includes three identical interconnected first connectors, and the first connector portions of each of the three first connectors are interconnected to form the first connector assembly, making it easy to install, disassemble, and transport the multiple first connectors. The first connector also includes a plug portion, which allows the first connector to be connected to the connecting beam, thereby completing the frame.

[0025] In some embodiments of the first aspect, the first 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 first recess, and at least a portion of the second sub-part of one of the first connectors in the first connector assembly is embedded in the first recess of the other first connector, such that the outer surfaces of the interconnected first sub-part and the outer surfaces of the second sub-part are flush.

[0026] In this embodiment, on the same first connector, the first sub-part has a recessed platform whose size and shape are adapted to at least a portion of the shape and size of the second sub-part. After the two first connectors are connected, at least a portion of the second sub-part can be embedded into the recessed platform, so that the connection position can be structurally abutted by the second sub-part and the recessed platform. This gives the two first connectors a certain ability to resist external forces such as shear force at the connection position, reducing the probability of relative displacement between the two first connectors. In addition, the second sub-part is embedded into the recessed platform, and the outer surfaces of the interconnected first sub-part and the second sub-part are flush. The outer surfaces of the two interconnected parts are smoothly connected without gaps or misalignment. When other components need to be installed or surface treatments (such as painting or electroplating) are required, the flush outer surfaces can provide a better operating foundation and reduce the risk of installation difficulties or poor surface treatment results caused by uneven surfaces.

[0027] In some embodiments of the first aspect, the first recess of the first sub-part is provided with a first connecting hole, and the second sub-part is provided with 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.

[0028] In this embodiment, a first connecting hole and a second connecting hole are respectively provided in the sinking platform and the second sub-part. When the two first connectors are connected, a connector adapted to the first connecting hole and the second connecting hole can be used for connection. The sinking platform and the second sub-part, i.e. the two first connectors, are connected by the connector. The connection structure is simple and the operation is convenient.

[0029] In some embodiments of the first aspect, the first connector portion further includes a first wedge surface and a second wedge surface, wherein the first wedge surface of one of the first connector portions abuts against the second wedge surface of the other connector portion.

[0030] In the embodiments of this application, when two first connectors are connected, the first wedge surface of one first connector abuts against the second wedge surface of the other first connector. Due to the friction of the wedge surfaces and their mutual support, external forces can be effectively resisted, reducing the risk of angular displacement between the connected first connectors.

[0031] 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°.

[0032] In this embodiment, the first included angle of the three first joints is 120°, and the structural design of the three first joints is basically the same. In this way, the three connecting beams with the same structure can be connected through the three first joints with the same structure, which helps to improve the overall forming efficiency of the frame.

[0033] 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 of the first connector portions of the first connector assembly is sealed and engaged with the groove of the other first connector portion.

[0034] In this embodiment, a groove and a protrusion are provided between the abutting first and second wedge surfaces to fit together. The interlocking concave-convex structure increases the misalignment shear strength between the abutting first and second wedge surfaces, thereby improving the connection strength. When the two first joints are connected to each other, the interlocking groove and protrusion extend from one side of the outer surface of the first joint to the opposite side, and the two are sealed together, so that the two connected first joints achieve a sealed connection.

[0035] In some embodiments of the first aspect, the first connector portion includes a first connector boss located on the first sub-part and / or a second connector boss located on the second sub-part.

[0036] In this embodiment, a first connector boss is provided in the first sub-part and a second connector boss is provided in the second sub-part, which can limit the installation of the first sealing strip, thereby achieving the sealing and waterproofing of the frame.

[0037] In some embodiments of the first aspect, the second connector assembly includes two interconnected second connectors and a third connector, each of the second connectors including a second connector portion and a plug portion, the third connector including a third connector portion and two plug portions, the third connector portion including a cavity, the two interconnected second connector portions being adapted to be inserted into the cavity to form the second connector assembly.

[0038] In this embodiment, the second connector assembly includes two interconnected second connectors and a third connector. The second connector portions of each of the two second connectors are interconnected and form a second connector assembly with the cavity of the third connector, facilitating installation, disassembly, and transportation of the interconnected second and third connectors. The second or third connector also includes a plug portion, allowing it to be connected to a connecting beam, thus completing the frame assembly. A cavity is provided in the third connector portion; the second connector portion of the second connector is fitted into the cavity, allowing it to be housed within the third connector. When connecting the second and third connectors, the second connector portion is inserted into the cavity of the third connector portion. This insertion connection is simple and quick, improving the overall assembly efficiency of the frame. After the second connector portion is inserted into the cavity, it is housed within the third connector. The second connector portion has a certain contact area with the third connector through contact with the cavity wall, allowing force to be dispersed and evenly distributed on the contact surface. This improves the mechanical properties of the connection location, enhances the connection reliability of the second and third connectors, and ultimately increases the load-bearing capacity of the entire frame.

[0039] In some embodiments of the first aspect, the second connector portion includes a third sub-portion and a fourth sub-portion, the outer surface of the third sub-portion being recessed with a second recess, and at least a portion of the third sub-portion of one of the second connector portions of the second connector assembly is embedded in the second recess of the other second connector portion such that the outer surfaces of the interconnected third sub-portions and the outer surfaces of the fourth sub-portions are flush.

[0040] In this embodiment, on the same second connector, the third sub-part has a recessed platform whose size and shape are adapted to at least a portion of the fourth sub-part's shape and size. After the two second connectors are connected, at least a portion of the fourth sub-part can be embedded into the recessed platform, so that the connection position can be structurally abutted by the fourth sub-part and the recessed platform. This gives the two second connectors a certain ability to resist external forces such as shear forces at the connection position, reducing the probability of relative displacement between the two second connectors. In addition, at least a portion of the fourth sub-part is embedded into the recessed platform, and the outer surfaces of the interconnected third sub-part and the fourth sub-part remain flush. The outer surfaces of the two interconnected parts are smoothly connected without gaps or misalignment. The two interconnected second connectors have flush outer surfaces, which allows them to better fit and insert into the cavity of the third connector and tightly abut against the cavity wall.

[0041] In some embodiments of the first aspect, the second recess of the second sub-part is provided with a third connecting hole, and the fourth sub-part is provided with a fourth connecting hole. The third connecting hole and the fourth connecting hole are connected and engaged to connect the third sub-part and the fourth sub-part.

[0042] In this embodiment, a third connecting hole and a fourth connecting hole are respectively provided on the sinking platform and the fourth sub-part. When the two second connectors are connected, a connector adapted to the third connecting hole and the fourth connecting hole can be used for connection. The sinking platform and the fourth sub-part, i.e. the two second connectors, are connected by the connector. The connection structure is simple and the operation is convenient.

[0043] In some embodiments of the first aspect, the second connector further includes a positioning wedge surface, wherein in two interconnected second connectors, the two positioning wedge surfaces abut against each other to make the two connecting beams perpendicularly connected.

[0044] In the embodiments of this application, when two second connectors are connected, the positioning wedge surface of one second connector abuts against the positioning wedge surface of the other second connector. Due to the friction of the wedge surfaces and their mutual support, external forces can be effectively resisted, reducing the risk of angular displacement between the two connected second connectors.

[0045] In some embodiments of the first aspect, the cavity wall includes a fifth connecting hole, the second connector includes a sixth connecting hole, and the fifth and sixth connecting holes are used to mate with a connector to connect the third connector and the second connector.

[0046] In this embodiment, a fifth connection hole and a sixth connection hole are respectively provided in the cavity and the second connector. When the two interconnected second connectors are connected to the third connector, they can be connected by using connectors that are compatible with the fifth connection hole and the sixth connection hole. The cavity and the second connector, i.e., the two second connectors and the third connector, are connected by connectors. The connection structure is simple and the operation is convenient.

[0047] In some embodiments of the first aspect, the third connector portion includes a third connector boss located outside the third connector portion.

[0048] In this embodiment of the application, a third connector boss is provided on the outside of the third connector portion, which can limit the installation of the first sealing strip, thereby achieving the sealing and waterproofing of the frame.

[0049] In some embodiments of the first aspect, the first joint boss, the second joint boss and the first boss on one side of the frame form a continuous boss, and / or the first joint boss, the second joint boss, the third joint boss and the first boss on one side of the frame form a continuous boss.

[0050] In this embodiment, multiple bosses located on the same plane are connected to each other to form a continuous boss. A first sealing strip that is completely closed can be set along one side of the continuous boss, thereby achieving large-area sealing and waterproofing of the entire surface of the frame.

[0051] In some embodiments of the first aspect, all six faces of the frame include the boss, which is quadrilateral.

[0052] In this embodiment, bosses are provided on all six sides of the frame, and the bosses are set as quadrilaterals, which can take into account all sides of the frame and all areas on the surface, and achieve a comprehensive sealing and waterproof effect for the entire frame.

[0053] In some embodiments of the first aspect, the frame includes 8n+4 of the connecting beams, eight of the first joint assemblies, and 4n-4 of the second joint assemblies, wherein n is an integer and n≥2; the frame has n accommodating spaces; and the plane containing every four of the second joint assemblies in the same plane is parallel to either of the two opposing faces of the frame.

[0054] In this embodiment, 8n+4 connecting beams, eight first joint assemblies, and 4n-4 second joint assemblies are used to divide the frame into n accommodating spaces, which can meet different multi-accommodating space storage needs of the frame. Furthermore, setting the plane containing every four second joint assemblies on the same plane to be parallel to either of the two opposing planes of the frame allows the multiple accommodating spaces of the frame to be arranged regularly in the same direction, thereby improving the uniformity of frame production.

[0055] In some embodiments of the first aspect, the outer surface of the connecting beam and the corresponding outer surface of the joint assembly are continuous surfaces.

[0056] In this embodiment, the outer surface of the connecting beam and the outer surface of the corresponding joint assembly are set as continuous surfaces. When other components need to be installed or surface treatments (such as painting or electroplating) are required, the flush outer surface can provide a better operating foundation and reduce the risk of installation difficulties or poor surface treatment results caused by uneven surfaces.

[0057] In some embodiments of the first aspect, the connecting beam is welded to the plug portion for fixation.

[0058] In this embodiment, the plug and the connecting beam are connected by welding, so that the connecting beam and the plug can achieve a stable and reliable sealed connection.

[0059] In some embodiments of the first aspect, the outer surface treatment of the frame includes at least one of the following treatments: electrophoresis, powder coating, or painting.

[0060] In the embodiments of this application, surface treatment of the outer surface of the frame is carried out by means of electrophoresis, powder spraying, painting, etc., which can improve the corrosion resistance of the outer surface of the frame and thus increase the service life of the frame.

[0061] In some embodiments of the first aspect, the frame includes a door panel that is fixed to the frame by a hinge disposed in the first through hole.

[0062] In this embodiment of the application, a door panel is set on the frame and fixed by hinges, which can meet the need for flexible access in the frame-based energy storage device and can achieve a stable and reliable connection between the door panel and the frame.

[0063] In some embodiments of the first aspect, the frame includes a plurality of beam assemblies, each beam assembly including a connecting beam and a joint, the connecting beam extending along a first direction, each end of the connecting beam including a connecting portion disposed along the first direction, each connecting portion being connected to a joint to form a beam assembly, the plurality of beam assemblies being interconnected to form a frame; the joint includes a first joint, a second joint, and a third joint; the beam assembly includes a first beam assembly and a second beam assembly; wherein, the first beam assembly includes a connecting beam and two first joints respectively connected to the ends of the connecting beam; the second beam assembly includes a connecting beam sub-assembly extending along the first direction and two second joints, the connecting beam sub-assembly including a plurality of connecting beams and a third joint connecting two adjacent connecting beams; each end of the connecting beam sub-assembly is connected to a second joint; wherein, one of the first joints of each of the two first beam assemblies is interconnected to form two mutually perpendicular first beam assemblies; the interconnected first joints of the two mutually perpendicular first beam assemblies are connected to the third joint of the second beam assembly; one of the second joints of each of the three second beam assemblies is interconnected to form three mutually perpendicular second beam assemblies.

[0064] In this embodiment, multiple beam components are interconnected to form a frame. As a single unit, each beam component can undergo various necessary treatments before being assembled into the frame, such as anti-corrosion or insulation surface treatments (e.g., electroplating, spraying). Compared to a pre-formed frame, the volume of a single beam component is significantly reduced. The dispersed processing of each beam component lowers the processing difficulty and effectively improves the uniformity and consistency of surface treatments such as spraying. This effectively reduces the risk of reduced support strength due to inadequate local processing, thereby enhancing the stability and reliability of the frame.

[0065] In some embodiments of the first aspect, the beam assembly further includes a third beam assembly, the third beam assembly including a connecting beam and two second joints respectively connected to the ends of the connecting beam, wherein one of the second joints of each of the two third beam assemblies is interconnected with one of the second joints of a second beam assembly to form two mutually perpendicular third beam assemblies and a second beam assembly, and / or one of the second joints of a third beam assembly is interconnected with one of the second joints of each of the two second beam assemblies to form a mutually perpendicular third beam assembly and two second beam assemblies; one of the second joints of each of the three beam assemblies is interconnected to form three mutually perpendicular beam assemblies, wherein the three beam assemblies include two second beam assemblies and a third beam assembly, and / or the three beam assemblies include a second beam assembly and two third beam assemblies.

[0066] In some embodiments of the first aspect, the beam assembly further includes a fourth beam assembly, the fourth beam assembly including a connecting beam sub-assembly and two first joints, each end of the connecting beam sub-assembly being connected to a first joint; wherein, one of the first joints of each of the two fourth beam assemblies is interconnected to form two mutually perpendicular fourth beam assemblies, and / or one of the first joints of one fourth beam assembly is connected to one of the first joints of a first beam assembly to form two mutually perpendicular fourth beam assemblies and a first beam assembly; the interconnected first joints of the two mutually perpendicular first beam assemblies are connected to a third joint of the fourth beam assembly, and / or the interconnected first joints of the two mutually perpendicular fourth beam assemblies are connected to a third joint of another fourth beam assembly, and / or the interconnected first joints of a pair of mutually perpendicular fourth beam assemblies and a first beam assembly are connected to a third joint of another fourth beam assembly.

[0067] In a second aspect, an energy storage device is provided, including a frame and one or more battery devices disposed within the frame, the frame including at least one frame as described in any embodiment of the first aspect.

[0068] Thirdly, an energy storage system is provided, including a power conversion device and the energy storage device described in the second aspect, wherein the power conversion device is used to electrically connect a power generation device and the energy storage device.

[0069] Fourthly, a charging network is provided, including charging piles and the energy storage device described in the second aspect or the energy storage system described in the third aspect, wherein the energy storage device is used to provide electrical energy to the charging piles. Attached Figure Description

[0070] Figure 1 This is a schematic diagram of the structure of the energy storage device provided in the embodiments of this application;

[0071] Figure 2 A schematic diagram of the framework provided in the embodiments of this application;

[0072] Figure 3 Another structural schematic diagram of the framework provided for an embodiment of this application;

[0073] Figure 4 This is a schematic diagram of the connecting beam provided in an embodiment of this application;

[0074] Figure 5 A partial cross-sectional view of the connecting beam provided in an embodiment of this application;

[0075] Figure 6 This is a schematic diagram of the connecting beam provided in an embodiment of this application;

[0076] Figure 7 Another partial cross-sectional view of the connecting beam provided in an embodiment of this application;

[0077] Figure 8 This is a schematic diagram of the structure of the first connector assembly provided in an embodiment of this application;

[0078] Figure 9 (a) is a schematic diagram of the structure of the first connector provided in an embodiment of this application;

[0079] Figure 9 (b) is a schematic diagram of another structure of the first connector provided in the embodiment of this application;

[0080] Figure 10 A schematic diagram showing the interconnection of the three first connectors provided in the embodiments of this application;

[0081] Figure 11 A schematic diagram and a partial enlarged view showing the second connector assembly provided in the embodiments of this application disassembled into two second connectors and one third connector;

[0082] Figure 12 This is a schematic diagram of the structure of the second connector provided in an embodiment of this application;

[0083] Figure 13 A schematic diagram of the structure of the third connector provided in the embodiments of this application;

[0084] Figure 14 (a) is a structural schematic diagram of the boss provided in an embodiment of this application;

[0085] Figure 14 (b) is a schematic diagram of another structure of the boss provided in the embodiment of this application;

[0086] Figure 15 Another structural schematic diagram of the framework provided for an embodiment of this application;

[0087] Figure 16 Another structural schematic diagram of the framework provided for an embodiment of this application;

[0088] Figure 17 A schematic diagram of an energy storage system provided in an embodiment of this application;

[0089] Figure 18 This is a schematic diagram of a charging network provided in an embodiment of this application.

[0090] The accompanying drawings are not drawn to scale. Detailed Implementation

[0091] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable tolerance range. "Parallel" is not parallel in the strict sense, but within the allowable tolerance range.

[0097] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0098] In the description of the embodiments of this application, unless otherwise expressly specified and limited, when an element is referred to as "fixed to" or "set on" another element, it may be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it may be directly connected to or indirectly connected to the other element.

[0099] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "proximity" refers to being close in location. For example, among three components A1, A2, and B, if the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1; that is, A2 is adjacent to B, or B is adjacent to A2. Similarly, when there are multiple components C, namely C1, C2, ... CN, if one component C, such as C2, is closer to component B than the other components C, then B is adjacent to C2, or C2 is adjacent to B.

[0100] 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.

[0101] 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.

[0102] Generally, an energy storage device includes a frame. The frame serves as the main supporting structure of the energy storage device, providing it with a basic shape and outline. Through reasonable design and connection methods, the frame structure connects the various parts of the energy storage device into a whole, thereby improving the overall stability of the energy storage device.

[0103] In related technologies, frames are often manufactured as a whole in factories by welding, but the whole frame is large in size and heavy, and inconvenient to transport.

[0104] Based on this, embodiments of this application provide a frame formed by connecting multiple connecting beams via multiple first connector assemblies and multiple second connector assemblies. The connecting beams extend along a first direction, and each connecting beam includes two connecting portions disposed opposite each other along the first direction. Each first connector assembly includes three mutually perpendicular plug portions; each second connector assembly includes four plug portions, wherein three plug portions are mutually perpendicular, and the remaining plug portion is disposed opposite to one of the three mutually perpendicular plug portions along the same direction. Each connecting portion is connected to one plug portion to form a frame having at least two accommodating spaces.

[0105] Thus, the frame is formed by combining connecting beams with the first and second joint assemblies. When the frame needs to be moved or transported, the individual components can be transported separately. Compared to transporting a welded, monolithic frame, this reduces transportation difficulty and the risk of damage to the frame structure during transport. Furthermore, the different storage spaces can meet various storage needs, thereby improving the frame's compatibility and applicability.

[0106] Understandably, in the embodiments of this application, the frame can be used as a supporting skeleton for manufacturing energy storage devices, and the frame can also be used as a supporting structure for manufacturing various functional platforms, such as supporting platforms for the placement, suspension and installation of various tools or structures, or the frame can also be used as a partition structure for dividing space, etc.

[0107] The following example uses a frame as the skeleton for making an energy storage device to illustrate the frame.

[0108] Please refer to Figure 1 The energy storage device 100 provided in this application embodiment can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems, etc. The energy storage device 100 can store electrical energy as needed and output electrical energy at appropriate times. For example, the energy storage device 100 can store electrical energy during off-peak hours and provide electrical energy to relevant users or electrical equipment during peak hours.

[0109] In some embodiments, the energy storage device 100 may be an energy storage cabinet or an energy storage container.

[0110] In some embodiments, the energy storage device 100 may include one or more battery clusters housed within the energy storage device 100. These battery clusters enhance the voltage and capacity of the energy storage device 100. Each battery cluster may include one or more battery devices 200. Multiple battery devices 200 are connected in series via a busbar to increase the voltage of the energy storage device 100. When the energy storage device 100 includes multiple battery clusters, these clusters are connected in parallel to increase the capacity of the energy storage device 100. Alternatively, the energy storage device 100 may also include one or more battery devices 200 directly housed within the energy storage device 100.

[0111] In some embodiments, please refer to Figure 1 The battery device 200 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.

[0112] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0113] 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.

[0114] In some embodiments, the battery device 200 may be a battery pack, which includes a housing and one or more individual battery cells housed within the housing.

[0115] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0116] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0117] In some embodiments, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0118] As an example, a single battery cell can be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-metal hydride battery, a nickel-cadmium battery, a lead-acid battery, etc.

[0119] In some embodiments, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include prismatic battery cells, blade-shaped battery cells, and multi-prismatic batteries, such as hexagonal prismatic batteries.

[0120] In some embodiments, the energy storage device 100 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.

[0121] As an example, the thermal management module may include a liquid cooling unit that supplies coolant to each battery device 200 via piping to regulate the temperature of the individual battery cells.

[0122] 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.

[0123] As an example, the central control module can serve as the battery management unit of the energy storage device 100, used to monitor and manage the energy storage device 100. The central control module can monitor information such as the current, voltage, power, state of charge, or temperature of the energy storage device 100. For example, it can control the charging and discharging current and voltage of the energy storage device 100. 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.

[0124] As an example, the fire protection module includes a control panel, detectors, alarm devices, etc., used to detect, alarm, or extinguish fires in the energy storage system 400.

[0125] As an example, the power distribution module can be used to distribute power to the modules in the energy storage device 100 that require electricity.

[0126] In some embodiments, such as Figure 1 and Figure 2 As shown, the energy storage device 100 typically includes a frame 11. The frame 11 serves as the main support structure of the energy storage device 100, providing stable support for the entire device and thus providing its basic shape and profile. This ensures that the energy storage device 100 maintains its predetermined geometry under various environmental conditions, reducing the risk of deformation such as twisting, bending, or collapse, and guaranteeing its normal operation. The frame 11 is typically made of high-strength and rigid materials such as steel, capable of withstanding the weight of the internal equipment and various external mechanical stresses, such as impacts and vibrations. For example, the frame 11 of some energy storage containers is welded from high-strength channel steel, angle steel, and other steel materials. Furthermore, in applications with strict weight restrictions and certain requirements for corrosion resistance, the frame 11 can be made of aluminum alloy. Aluminum alloy has a low density, reducing the overall structural weight, facilitating transportation and installation. Moreover, its surface can form a dense oxide film, providing a certain degree of corrosion resistance, making it suitable for environments with humid or slightly corrosive media. Furthermore, the frame structure, through its rational design and connection methods, connects the various parts of the energy storage device 100 into a whole, thereby improving the overall stability of the energy storage device 100. Thus, the frame 11, as an important component of the energy storage device 100, plays a crucial role in maintaining the shape of the energy storage device 100 and enhancing its overall stability.

[0127] Figure 2 A schematic diagram of the structure of framework 11 according to an embodiment of this application is shown. Figure 2 As shown, the frame 11 of this embodiment includes a plurality of connecting beams 113, a plurality of first connector assemblies 111, and a plurality of second connector assemblies 112. The connecting beams 113 extend along a first direction and include two connecting portions 11310 disposed opposite to each other along the first direction; the first connector assembly 111 includes three mutually perpendicular plug portions; the second connector assembly 112 includes four plug portions, wherein three plug portions are mutually perpendicular, and the third plug portion is disposed opposite to one of the three mutually perpendicular plug portions in the same direction; wherein each connecting portion 11310 is connected to one plug portion to form a frame having at least two accommodating spaces.

[0128] By combining the same connecting beam 113 with two different joint assemblies (first joint assembly 111 and second joint assembly 112), a frame 11 with at least two accommodating spaces can be formed, thereby simplifying the types of parts installed in the frame 11 and making these parts easier to transport. In addition, various storage needs can be met by using different accommodating spaces.

[0129] For example, such as Figure 2 As shown, multiple connecting beams 113 are connected to multiple first joint assemblies 111 and multiple second joint assemblies 112 to form a cubic frame 11, wherein the multiple connecting beams 113 may include vertical beams (also known as columns) and horizontal beams.

[0130] It should be understood that the frame 11 may include multiple beam assemblies, each beam assembly including a connecting beam 113 and a joint. The connecting beam 113 extends along a first direction, and each end of the connecting beam 113 includes a connecting portion disposed along the first direction. Each connecting portion is connected to a joint to form a beam assembly. The multiple beam assemblies are interconnected to form the frame 11. The joint includes a first joint, a second joint, and a third joint. The beam assembly includes a first beam assembly and a second beam assembly. The first beam assembly includes the connecting beam 113 and two first joints respectively connected to the ends of the connecting beam 113. The second beam assembly includes a connecting beam sub-assembly extending along the first direction and two second joints. The connecting beam sub-assembly includes multiple connecting beams 113 and a third joint connected between two adjacent connecting beams 113. Each end of the connecting beam sub-assembly is connected to a second joint. One of the first joints of each of the two first beam assemblies is interconnected to form two mutually perpendicular first beam assemblies. The interconnected first joints of the two mutually perpendicular first beam assemblies are connected to the third joint of the second beam assembly. One of the second joints of each of the three second beam assemblies is interconnected to form three mutually perpendicular second beam assemblies.

[0131] It should be understood that the beam assembly may also include a third beam assembly, the third beam assembly including a connecting beam 113 and two second joints respectively connected to the ends of the connecting beam 113, wherein one of the second joints of each of the two third beam assemblies is interconnected with one of the second joints of a second beam assembly to form two mutually perpendicular third beam assemblies and a second beam assembly, and / or one of the second joints of a third beam assembly is interconnected with one of the second joints of each of the two second beam assemblies to form a mutually perpendicular third beam assembly and two second beam assemblies; one of the second joints of each of the three beam assemblies is interconnected to form three mutually perpendicular beam assemblies, wherein the three beam assemblies include two second beam assemblies and one third beam assembly, and / or the three beam assemblies include one second beam assembly and two third beam assemblies.

[0132] It should be understood that the beam assembly may further include a fourth beam assembly, which includes a connecting beam sub-assembly and two first joints, with one first joint connected to each end of the connecting beam sub-assembly; wherein, one of the first joints of each of the two fourth beam assemblies is interconnected to form two mutually perpendicular fourth beam assemblies, and / or one of the first joints of a fourth beam assembly is connected to one of the first joints of a first beam assembly to form two mutually perpendicular fourth beam assemblies and a first beam assembly; the interconnected first joints of the two mutually perpendicular first beam assemblies are connected to a third joint of the fourth beam assembly, and / or the interconnected first joints of the two mutually perpendicular fourth beam assemblies are connected to a third joint of another fourth beam assembly, and / or the interconnected first joints of a pair of mutually perpendicular fourth beam assemblies and a first beam assembly are connected to a third joint of another fourth beam assembly.

[0133] It should be understood that, as a whole component, the beam assembly can undergo various necessary treatments before being assembled into the frame 11, such as anti-corrosion or insulation surface treatments (e.g., electroplating, spraying). Compared to the formed frame 11, the volume of a single beam assembly is greatly reduced, and the beam assemblies are processed separately, which reduces the difficulty of processing. The uniformity and consistency of surface treatments such as spraying can also be effectively improved, thereby effectively reducing the risk of reduced support strength of the frame 11 due to inadequate local processing and improving the stability and reliability of the frame 11 in use.

[0134] It should be understood that, except Figure 2 In addition to the configuration shown for frame 11, frame 11 can also be other configurations, as long as the connecting beam 113, the first joint assembly 111 and the second joint assembly 112 are combined and connected as described in the embodiments of this application.

[0135] Figure 3 Another structural schematic diagram of the framework 11 according to an embodiment of this application is shown. For example... Figure 3 As shown, the frame 11 has a double-layer structure, and each layer has two accommodating spaces of different shapes.

[0136] When the frame 11 is divided into four storage spaces with different shapes, it can meet different storage needs for objects of different shapes.

[0137] It should be understood that the frame 11 can also be divided into two or more layers, each layer having two or more accommodating spaces, thus forming a more complex structure. The embodiments of this application do not limit this.

[0138] Figure 4 A structural schematic diagram of the connecting beam 113 according to an embodiment of this application is shown. Figure 4As shown, the connecting beam 113 includes two mutually perpendicular outer walls 1131 located outside the frame 11, and the first wall of the two outer walls 1131 includes a plurality of first through holes 1132.

[0139] A first through hole 1132 is provided on the outer wall 1131 of the frame 11, which allows the external skin, hinges, door lock limiters and other parts to be installed and fixed to the frame 11, thereby improving the frame 11.

[0140] Specifically, the first through hole 1132 can be a round hole or a hexagonal through hole, and this application embodiment does not limit this.

[0141] It should be understood that the first wall can be either of the two outer walls 1131, or both outer walls 1131 can be the first wall. That is, the first through hole 1132 can be provided on either of the two outer walls 1131, or the first through hole 1132 can be provided on both outer walls 1131.

[0142] In some embodiments, a plurality of first through holes 1132 are arranged along a first direction; wherein, the connecting beam 113 further includes a first boss 1133 extending along the first direction outside the first wall, the first boss 1133 being located on the same side of the plurality of first through holes 1132.

[0143] By aligning the first through holes 1132 with the extension direction of the connecting beam 113, parts can be installed more neatly on the outer wall 1131 of the frame 11. A first boss 1133 located on the same side of the multiple first through holes 1132 on the connecting beam 113 can limit the installation of the first sealing strip, thereby achieving a sealed and waterproof effect on the frame 11.

[0144] It should be understood that when the arrangement direction of the first through holes 1132 is the same as the extension direction of the connecting beam 113, and the first boss 1133 is disposed on the same side of the multiple first through holes 1132, the extension direction of the first boss 1133 is also the same as the extension direction of the connecting beam 113. At this time, the extension direction of the first sealing strip is also the same as the extension direction of the connecting beam 113. Setting the first sealing strip as a regular shape extending in the same direction allows the stress applied to the first sealing strip by the parts disposed on the first sealing strip to be evenly distributed.

[0145] It should be understood that the multiple first through holes 1132 may not be arranged in the same direction. For example, they may be arranged in a direction perpendicular to the first direction in a local area of ​​the connecting beam 113, or arranged according to other arbitrary reasonable rules. This application embodiment does not limit this.

[0146] Figure 5 A partial cross-sectional view of the connecting beam 113 according to an embodiment of this application is shown. Figure 5As shown, the frame 11 includes a skin 1134 disposed on the outside of the frame 11, and the skin 1134 is connected and fixed to the frame 11 by bolts 1136 to the first through hole 1132.

[0147] A skin 1134 is provided on the outside of the frame 11 to achieve a sealed and waterproof effect. The skin 1134 is fixed to the frame 11 using bolts 1136 to improve the tightness of the connection between the skin 1134 and the frame 11.

[0148] Specifically, the skin 1134 can be made of high-strength and dense materials such as metal and carbon fiber to improve the overall mechanical strength and waterproof performance of the frame.

[0149] Specifically, the skin 1134 can be set on five sides of the frame 11, and the side of the frame 11 without the skin 1134 can be set with a door panel to facilitate the free access of items inside the frame 11.

[0150] It should be understood that the skin 1134 is provided with screw holes that are aligned with the first through hole 1132 and adapted to the bolt 1136, so that the skin 1134 and the first through hole 1132 can be connected and fixed to the frame 11 by bolts 1136.

[0151] In some embodiments, the frame 11 includes a first sealing strip 1135 located between the first wall and the skin 1134; wherein the projection of the first sealing strip 1135 along the thickness direction of the first wall and the projection of the first boss 1133 along the thickness direction of the first wall have no overlapping area, and the first sealing strip 1135 is hollowed out at a plurality of first through holes 1132.

[0152] In this embodiment, a first sealing strip 1135 is provided on the outer wall of the frame 11 to improve the sealing and waterproof performance of the frame 11. Setting the first sealing strip 1135 to not overlap with the first boss 1133 improves the regularity of the surface of the first boss 1133, thereby improving the uniformity of the surface of the frame 11. The first sealing strip 1135 is hollowed out at the first through hole 1132, facilitating the installation of bolts at the first through hole 1132, thereby improving the tightness of the connection between the first sealing strip 1135 and the outer wall 1131 of the frame 11.

[0153] It should be understood that the material of the first sealing strip 1135 is usually selected from rubber or polymer materials with good elasticity, aging resistance, wear resistance and sealing performance to achieve the sealing effect.

[0154] Specifically, the material of the first sealing strip 1135 can be foamed silicone. Foamed silicone has good flexibility, sealing properties and pressure resistance, and can be used in the range of -60℃ to 200℃, while maintaining good sealing performance and resilience.

[0155] In some embodiments, the thickness of the first sealing strip 1135 located between the skin 1134 and the first wall is the same as the height of the first boss 1133.

[0156] Setting the thickness of the first sealing strip 1135 to be the same as the height of the first boss 1133 allows the mounting surface of the part to fit against the surface of the frame 11 when the part is installed on the outside of the frame 11, thereby improving the stability of the part installation.

[0157] It should be understood that in this embodiment, the thickness of the first sealing strip 1135 is the thickness of the first sealing strip 1135 after being compressed by bolt tightening.

[0158] In some embodiments, the ratio of the thickness dimension of the first sealing strip 1135 located between the skin 1134 and the first wall to the thickness dimension of the first sealing strip 1135 is greater than or equal to 0.5 and less than or equal to 0.6.

[0159] The ratio of the thickness of the first sealing strip 1135 after compression by the skin 1134 and the first wall to the thickness before compression is set in the range of 0.5 to 0.6. This can ensure that the first sealing strip 1135 achieves a sealing and waterproofing effect after compression, while also preventing the first sealing strip 1135 from being compressed too much and causing plastic deformation and loss of elasticity.

[0160] Figure 6 A structural schematic diagram of the connecting beam 113 according to an embodiment of this application is shown. Figure 6 As shown, the connecting beam 113 also includes at least one inner wall 1137 located inside the frame 11, and a second wall in the at least one inner wall 1137 includes a plurality of second through holes 1139 for bolt connection to install plates or brackets.

[0161] A second through hole 1139 is provided on the inner wall 1137 of the frame 11, which allows for the installation and fixing of internal plates, brackets and other parts to the frame 11, thereby improving the frame 11.

[0162] It should be understood that, based on the fact that the connecting beam 113 includes two mutually perpendicular outer walls 1131 located outside the frame 11, when the connecting beam 113 includes one inner wall 1137, the cross-section of the connecting beam is triangular; when the connecting beam 113 includes two inner walls 1137, the cross-section of the connecting beam is quadrilateral, and so on. When the number of inner walls 1137 is small, the structure of the connecting beam 113 is simpler and the manufacturing cost is lower; when the number of inner walls 1137 is large, the connecting beam 113 can achieve more complex and diverse installation of internal parts of the frame 11 through the inner walls 1137 corresponding to various directions.

[0163] Figure 7Another partial cross-sectional view of the connecting beam 113 according to an embodiment of this application is shown. For example... Figure 7 As shown, the frame 11 includes a first rivet nut 11311 disposed in the first through hole 1132 and / or a second rivet nut 1138 disposed in the second through hole 1139; wherein, the height of the flange section 11361 of the first rivet nut is the same as the height of the first boss 1133.

[0164] By installing rivet nuts in the first through hole 1132 or the second through hole 1139, the tightness of the connection between the first through hole 1132 or the second through hole 1139 and the corresponding part can be strengthened. Setting the height of the first rivet nut flange section 11361 to be the same as the height of the first boss 1133 allows the mounting surface of the part to fit snugly against the surface of the frame 11 when the part is installed on the outside of the frame 11, thereby improving the stability of the part installation.

[0165] It should be understood that rivet nuts, also known as rivet nuts, are widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, and decoration. Rivet nuts are generally made of materials such as carbon steel, stainless steel, and aluminum. Rivet nuts were developed to address the shortcomings of welded nuts on thin metal sheets and tubes, such as easy melting and stripping of internal threads. They eliminate the need for tapping internal threads and welding nuts, providing strong and efficient riveting, and are easy to use. In this embodiment, the sealing provided by the fastening connection of the rivet nut provides a certain degree of waterproofing for the frame 11.

[0166] Figure 8 A schematic diagram of the structure of the first connector assembly 111 according to an embodiment of this application is shown. Figure 9 (a) and Figure 9 (b) shows a schematic diagram of the structure of the first connector 1111 according to an embodiment of this application. Figure 10 A schematic diagram showing the interconnection of three first connectors 1111 according to an embodiment of this application is shown. Figure 8 , Figure 9 of (a), Figure 9 (b) and Figure 10 As shown, the first connector assembly 111 includes three identical interconnected first connectors 1111, each first connector 1111 including a first connector portion 1112 and a plug portion 1113, the three first connector portions 1112 being interconnected to form the first connector assembly 111.

[0167] The first connector assembly 111 includes three identical interconnected first connectors 1111, and the first connector portions 1112 of each of the three first connectors 1111 are interconnected to form the first connector assembly 111, making it easy to install, disassemble and transport the multiple first connectors 1111. The first connector 1111 also includes a plug portion 1113, which allows the first connector 1111 to be connected to the connecting beam 113, thereby completing the frame 11.

[0168] It should be understood that, in addition to the first connector assembly formed by the interconnection of three first connectors 1111 in this embodiment, the first connector assembly can also be other structures, including other components. The components of the first connector assembly can be combined to form a complete first connector assembly 111, and this application embodiment does not limit this.

[0169] In some embodiments, the first connector portion 1112 includes a first sub-portion 1114a and a second sub-portion 1114b that are perpendicular to each other. The outer surface of the first sub-portion 1114a is recessed with a first countersunk 1115. At least a portion of the second sub-portion 1114b of one of the first connector portions 1112 in the first connector assembly 111 is embedded in the first countersunk 1115 of the other first connector portion 1112, so that the outer surfaces of the interconnected first sub-portion 1114a and the outer surfaces of the second sub-portion 1114b are flush.

[0170] On the same first connector 1111, the first sub-part 1114a is provided with a recessed platform whose size and shape are adapted to at least a portion of the shape and size of the second sub-part 1114b. After the two first connectors 1111 are connected, at least a portion of the second sub-part 1114b can be embedded into the recessed platform, so that the connection position can be structurally abutted by the second sub-part 1114b and the recessed platform. This gives the two first connectors 1111 a certain ability to resist external forces such as shear force at the connection position, reducing the probability of relative displacement between the two first connectors 1111. In addition, the second sub-part 1114b is at least partially embedded in the recessed platform, and the outer surfaces of the interconnected first sub-part 1114a and the second sub-part 1114b are flush. The outer surfaces of the two interconnected parts are smoothly connected without gaps or misalignment. When other components need to be installed or surface treatments (such as painting or electroplating) are required, the flush outer surfaces can provide a better operating foundation and reduce the risk of installation difficulties or poor surface treatment results caused by uneven surfaces.

[0171] It should be understood that the first sub-part 1114a has a first recessed platform 1115 recessed from its outer surface. The first recessed platform 1115 has an outer surface that is disposed away from the internal space of the frame 11. The first recessed platform 1115 is formed by the recess of the outer surface of the first sub-part 1114a. From the appearance, the outer surface of the first connector 1111 is not flat, but has a downwardly recessed area, which is the first recessed platform 1115. Furthermore, the shape, size, and depth of the recess of this first recessed platform 1115 need to be designed according to the second sub-part 1114b so that after the two first connectors 1111 are connected, at least a portion of the second sub-part 1114b of one first connector 1111 can be embedded in the first recessed platform 1115 on the other first connector 1111.

[0172] For example, the first recess 1115 may be a circular, square or other irregularly shaped recess. Correspondingly, the second sub-part 1114b has a portion of its structure that is circular, square or an irregular shape similar to the first recess 1115. This portion of the structure of the second sub-part 1114b can be embedded in the first recess 1115. Furthermore, the depth of the first recess 1115 recessed downward from the outer surface of the first connector 1111 is substantially equivalent to the thickness of the portion of the second sub-part 1114b that is embedded in the first recess 1115. This ensures that after this portion of the structure of the second sub-part 1114b is embedded in the first recess 1115, the outer surface of the first sub-part 1114a and the outer surface of the second sub-part 1114b remain flush.

[0173] It should be noted that keeping the outer surface of the first sub-part 1114a flush with the outer surface of the second sub-part 1114b means that the outer surfaces of the interconnected first sub-part 1114a and the second sub-part 1114b are on the same plane, with no height difference between them. Furthermore, the first sub-part 1114a and the second sub-part 1114b are seamlessly joined on their outer surfaces. From the appearance, the outer surfaces of the first sub-part 1114a and the second sub-part 1114b after connection form a continuous and flat plane.

[0174] It should be understood that the outer surface of the first sub-part 1114a may be a part of the outer surface of the first connector 1111, and the outer surface of the second sub-part 1114b may also be a part of the outer surface of the first connector 1111. The outer surfaces of the first sub-part 1114a and the second sub-part 1114b are kept flush, so that after the two first connectors 1111 are connected to each other, the outer surfaces of the two first connectors 1111 can form a continuous surface.

[0175] In some embodiments, the first recess 1115 of the first sub-part 1114a is provided with a first connecting hole 1116a, and the second sub-part 1114b is provided with a second connecting hole 1116b. The first connecting hole 1116a and the second connecting hole 1116b are connected and engaged to connect the first sub-part 1114a and the second sub-part 1114b.

[0176] The sinking platform and the second sub-part 1114b are respectively provided with a first connecting hole 1116a and a second connecting hole 1116b. When the two first connectors 1111 are connected, they can be connected by a connector that is compatible with the first connecting hole 1116a and the second connecting hole 1116b. The sinking platform and the second sub-part 1114b, i.e. the two first connectors 1111, are connected by the connector. The connection structure is simple and the operation is convenient.

[0177] Specifically, the first connecting hole 1116a can be a screw hole, the second connecting hole 1116b can be a through hole, and the corresponding connector is a screw or bolt. The first sub-part 1114a and the corresponding second sub-part 1114b are screwed together to connect the two first connectors 1111. The first connecting hole 1116a can be a countersunk hole, so that the head of the connector such as the screw or bolt can be inserted into the first connector part 1112 without protruding from the outer surface of the first connector part 1112.

[0178] In some embodiments, the first connector portion 1112 further includes a first wedge surface 1117a and a second wedge surface 1117b, wherein the first wedge surface 1117a of one first connector portion 1112 in the first connector assembly 111 abuts against the second wedge surface 1117b of the other first connector portion 1112.

[0179] When the two first joints 1111 are connected, the first wedge surface 1117a of one first joint 1111 abuts against the second wedge surface 1117b of the other first joint 1111. Due to the friction of the wedge surfaces and their mutual support, they can effectively resist external forces and reduce the risk of angular displacement between the connected first joints 1111.

[0180] It should be understood that a wedge face is a plane with an inclined angle, similar to the side of a wedge, gradually thickening or thinning from one end to the other. When two components are connected and their respective wedge faces are in contact, the inclined angle of the wedge faces guides the components to connect at a specific angle. For example, in frame 11, if two first joints 1111 are to be connected at a certain angle, by designing a suitable wedge face angle, the required connection angle can be automatically formed when the wedge faces of the two joints abut against each other.

[0181] In some embodiments, the plane containing the first wedge surface 1117a and the plane containing the second wedge surface 1117b have a first included angle of 120°.

[0182] The first included angle of the three first joints 1111 is 120°. The structural design of the three first joints 1111 is basically the same. In this way, the three connecting beams 113 with the same structure can be connected by the three first joints 1111 with the same structure, which helps to improve the overall forming efficiency of the frame 11.

[0183] In some embodiments, the first wedge surface 1117a includes a groove 1118, the second wedge surface 1117b includes a protrusion 1119, and the protrusion 1119 of one first connector portion 1112 of the first connector assembly 111 is sealed and engaged with the groove 1118 of the other first connector portion 1112.

[0184] A groove 1118 and a protrusion 1119 are provided between the abutting first wedge surface 1117a and the second wedge surface 1117b to fit and engage. The interlocking structure increases the misalignment shear strength between the abutting first wedge surface 1117a and the second wedge surface 1117b, thereby improving the connection strength. When the two first joints 1111 are connected to each other, the interlocking groove 1118 and the protrusion 1119 extend from one side of the outer surface of the first joint 1111 to the opposite side, and the two are sealed together, so that the two connected first joints 1111 achieve a sealed connection.

[0185] Specifically, sealant can be injected into the groove 1118 to seal the connection protrusion 1119, or a first sealing strip can be installed in the groove 1118 to seal the connection protrusion 1119.

[0186] It should be understood that sealants can be silicone sealants, polyurethane sealants, or acrylic sealants, etc.

[0187] 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, ensure that the sealant covers the sealing area evenly and continuously, avoiding gaps, 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.

[0188] In some embodiments, the first connector portion 1112 includes a first connector boss 11110a located in the first sub-part 1114a and / or a second connector boss 11110b located in the second sub-part 1114b.

[0189] A first connector boss 11110a is provided in the first sub-part 1114a, and a second connector boss 11110b is provided in the second sub-part 1114b. This can limit the installation of the first sealing strip, thereby achieving a sealed and waterproof frame.

[0190] Figure 11 The diagram shows a second connector assembly 112 according to an embodiment of this application, disassembled into two second connectors 1121 and one third connector 1122, along with a partially enlarged view. Figure 12 A schematic diagram of the structure of the second connector 1121 according to an embodiment of this application is shown. Figure 13 A schematic diagram of the structure of the third connector 1122 according to an embodiment of this application is shown. Figure 11 , Figure 12 and Figure 13 As shown, the second connector assembly 112 includes two interconnected second connectors 1121 and a third connector 1122. Each second connector 1121 includes a second connector portion 11211 and a plug portion 1113. The third connector 1122 includes a third connector portion 11221 and two plug portions 1113. The third connector portion 11221 includes a cavity 11222. The two interconnected second connector portions 11211 are adapted to be inserted into the cavity 11222 to form the second connector assembly 112.

[0191] The second connector assembly 112 includes two interconnected second connectors 1121 and a third connector 1122. The second connector portions 11211 of each of the two second connectors 1121 are interconnected and form the second connector assembly 112 with the cavity of the third connector 1122, facilitating installation, disassembly, and transportation of the interconnected second connectors 1121 and third connector 1122. The second connector 1121 or third connector 1122 also includes a plug portion 1113, allowing the second connector 1121 or third connector 1122 to be connected to the connecting beam 113, thereby completing the frame 11. A cavity 11222 is provided in the third connector portion 11221, that is, the third connector 1122 has a cavity 11222. The second connector portion 11211 of the second connector 1121 is adapted to be inserted into the cavity 11222, so that the second connector portion 11211 of the second connector 1121 can be accommodated inside the third connector 1122. When the second connector 1121 and the third connector 1122 are connected, the second connector portion 11211 is inserted into the cavity 11222 of the third connector portion 11221. The insertion connection operation is simple and quick, which helps to improve the overall assembly efficiency of the frame 11. After the second connector 11211 is inserted into the cavity 11222, the second connector 11211 is housed inside the third connector 1122. The second connector 11211 has a certain contact area with the third connector 1122 by contacting the cavity wall of the cavity 11222, so that the force can be dispersed and transmitted, and the force can be evenly distributed on the contact surface. This helps to improve the mechanical properties of the connection position, improve the connection reliability of the second connector 1121 and the third connector 1122, and thus improve the load-bearing capacity of the entire frame 11.

[0192] In some embodiments, the second connector portion 11211 includes a third sub-portion 11212 and a fourth sub-portion 11213. The outer surface of the third sub-portion 11212 is recessed with a second countersunk 11214. At least a portion of the third sub-portion 11212 of one of the second connector portions 11211 in the second connector assembly 112 is embedded in the second countersunk 11214 of the other second connector portion 11211, so that the outer surfaces of the interconnected third sub-portion 11212 and the outer surfaces of the fourth sub-portion 11213 are flush.

[0193] On the same second joint 11211, the third sub-part 11212 is provided with a recessed platform whose size and shape are adapted to at least part of the shape and size of the fourth sub-part 11213. After the two second joints 1121 are connected, at least part of the fourth sub-part 11213 can be correspondingly embedded in the recessed platform, so that the connection position can be structurally supported by the fourth sub-part 11213 and the recessed platform, thereby enabling the two second joints 1121 to have a certain ability to resist external forces such as shear force at the connection position, reducing the probability of relative displacement of the two second joints 1121. Furthermore, the fourth sub-part 11213 is at least partially embedded in the recessed platform, and the outer surfaces of the interconnected third sub-part 11212 and the fourth sub-part 11213 are kept flush. The outer surfaces of the two interconnected parts are smoothly connected without gaps or misalignment. The two interconnected second connector parts 11211 have flush outer surfaces, which allows them to be better adapted to the cavity 11222 of the third connector 1122 and to fit tightly against the cavity wall of the cavity 11222.

[0194] It should be understood that the third sub-part 11212 has a second recessed platform 11214 recessed on its outer surface. From the appearance, the outer surface of the third sub-part 11212 is not flat, but has a downwardly recessed area, which is the second recessed platform 11214. Furthermore, the shape, size, and depth of the second recessed platform 11214 need to be designed according to the fourth sub-part 11213 so that after the two second connectors 1121 are connected, at least a portion of the fourth sub-part 11213 of one second connector 1121 can be embedded in the second recessed platform 11214 on the other second connector 1121. For example, the second recess 11214 may be circular, square, or other irregularly shaped. Correspondingly, the fourth sub-part 11213 has a portion of its structure that is circular, square, or similar to the irregular shape of the second recess 11214. This portion of the fourth sub-part 11213 can be embedded in the second recess 11214. Furthermore, the depth of the second recess 11214 recessed downward from the outer surface of the third connector 1122 is substantially equivalent to the thickness of the portion of the fourth sub-part 11213 that is embedded in the second recess 11214. This ensures that after this portion of the fourth sub-part 11213 is embedded in the second recess 11214, the outer surface of the third sub-part 11212 and the outer surface of the fourth sub-part 11213 remain flush.

[0195] It should be noted that the outer surface of the third sub-part 11212 being flush with the outer surface of the fourth sub-part 11213 means that the outer surfaces of the interconnected third sub-part 11212 and the fourth sub-part 11213 are on the same plane, with no height difference between them. Furthermore, the outer surfaces of the third sub-part 11212 and the fourth sub-part 11213 are joined together, and from the appearance, the outer surfaces of the third sub-part 11212 and the fourth sub-part 11213 after connection form a continuous and flat plane.

[0196] In some embodiments, the second recess 11214 of the third sub-part 11212 is provided with a third connecting hole 11215, and the fourth sub-part 11213 is provided with a fourth connecting hole 11216. The third connecting hole 11215 and the fourth connecting hole 11216 are connected and engaged to connect the third sub-part 11212 and the fourth sub-part 11213.

[0197] A third connecting hole 11215 and a fourth connecting hole 11216 are respectively provided on the recessed platform and the fourth sub-part 11213. When the two second connectors 1121 are connected, they can be connected by a connector that is compatible with the third connecting hole 11215 and the fourth connecting hole 11216. The recessed platform and the fourth sub-part 11213, i.e. the two second connectors 1121, are connected by a connector. The connection structure is simple and the operation is convenient.

[0198] Specifically, the third connecting hole 11215 can be a screw hole, and the fourth connecting hole 11216 can be a through hole. The corresponding connector is a screw or bolt. The third sub-part 11212 is screwed to the corresponding fourth sub-part 11213 to connect the two second connectors 1121. The fourth connecting hole 11216 can be a countersunk hole, so that the head of the connector such as the screw or bolt can be inserted into the second connector part 11211 without protruding from the surface of the second connector part 11211. In this way, the connector will not interfere with the insertion of the second connector part 11211 and the third connector 1122.

[0199] In some embodiments, the second connector portion 11211 further includes a positioning wedge surface 11217, and in the two interconnected second connector portions 11211, the two positioning wedge surfaces 11217 abut against each other to make the two connecting beams 113 vertically connected.

[0200] When the two second joints 1121 are connected, the positioning wedge surface 11217 of one second joint 1121 abuts against the positioning wedge surface 11217 of the other second joint 1121. Due to the friction of the wedge surfaces and their mutual support, they can effectively resist external forces and reduce the risk of angular displacement between the two connected beams 113.

[0201] It should be understood that when the two second joints 1121 are connected, the positioning wedge surface 11217 of one second joint 1121 abuts against the positioning wedge surface 11217 of the other second joint 1121. By designing the shape and angle of the positioning wedge surfaces 11217 of the two second joints 1121, when they abut against each other, the two connecting beams 113 connected to each other can be guided to be vertically connected. Furthermore, when the two positioning wedges 11217 abut together, the friction and mutual support of the wedges effectively resist external forces, reducing the risk of angular displacement between the connected beams 113. The force transmission at the connection position of the frame 11 is more uniform, and the connection strength and support stability of the structure are also higher. In addition, compared with the connection method of using a complex angle adjustment mechanism or multiple connectors, using the abutment of the wedges to achieve a specific angle connection only requires the two corresponding positioning wedges 11217 to be fitted together. The angle positioning structure is simple and the connection operation is convenient, thereby improving the assembly efficiency of the frame 11. In the process of large-scale frame structure production and installation, it can save manpower and time costs, and improve production efficiency and economic benefits.

[0202] In some embodiments, the cavity wall of the cavity 11222 includes a fifth connecting hole 11223, and the second connector includes a sixth connecting hole 11218. The fifth connecting hole 11223 and the sixth connecting hole 11218 are used to cooperate with the connector to connect the third connector 11221 and the second connector 11211.

[0203] A fifth connecting hole 11223 and a sixth connecting hole 11218 are respectively provided in the cavity 11222 and the second connector 11211. When the two interconnected second connectors 1121 are connected to the third connector 1122, they can be connected by using connectors that are compatible with the fifth connecting hole 11223 and the sixth connecting hole 11218. The cavity 11222 and the second connector 11211, that is, the two second connectors 1121 and the third connector 1122, are connected by connectors. The connection structure is simple and the operation is convenient.

[0204] It should be understood that the cavity 11222 is a spatial structure with a specific shape and size disposed in the third connector 1122. The shape and internal dimensions of the cavity 11222 are approximately the same as the external shape and dimensions of the second connector portion 11211, so that the second connector portion 11211 can maintain a tight fit with the cavity wall of the cavity 11222 after being inserted into the cavity 11222. For example, when the second connector portion 11211 is a cylindrical plug structure, the cavity 11222 is square in shape and has a certain depth to ensure that the second connector portion 11211 can be inserted to a sufficient length to ensure the stability of the connection. Alternatively, when the second connector portion 11211 is a cylindrical plug structure, the cavity 11222 corresponds to a cylindrical hole with a certain depth. In some examples, the wall of cavity 11222 can be smooth or rough, or it can be provided with special textures such as grooves or protrusions. Smooth walls facilitate the insertion of the second connector 11211, while rough or special textures can be used to increase friction or achieve specific positioning functions.

[0205] It should be understood that the fitting and insertion of the second connector 11211 and the cavity 11222 indicates that they are matched in shape and size. This not only ensures that the second connector 11211 can be smoothly inserted into the cavity 11222, but also ensures that the second connector 11211 can achieve a certain degree of tightness and stability with the cavity wall after insertion. For example, a certain narrowing design can be made at the entrance of the cavity 11222. When the second connector 11211 is inserted, the narrowing can generate a certain elastic deformation, forming a clamping force on the second connector 11211, thereby reducing the risk of the second connector 11211 dislodging. At the same time, the length of the second connector 11211 and the depth of the cavity 11222 also need to be reasonably designed so that after the second connector 11211 is fully inserted, the side of the second connector 11211 can achieve good contact with the cavity wall of the cavity 11222 to ensure the effective transmission of force.

[0206] Specifically, the connectors can be screws, bolts, pins, rivets, etc. In this way, the second connector 1121 and the third connector 1122 can not only be positioned by the cavity 11222, but also be connected with the connectors through the fifth connecting hole 11223 and the sixth connecting hole 11218, thereby further improving the reliability and stability of the connection.

[0207] Specifically, the fifth connecting hole 11223 can be a through hole penetrating the cavity wall of the cavity 11222, and the sixth connecting hole 11218 can be a screw hole. The corresponding connector is a screw or bolt. The cavity wall of the cavity 11222 is screwed to the corresponding second connector portion 11211 to connect the second connector 1121 and the third connector 1122. Among them, the fifth connecting hole 11223 can be a countersunk hole, so that the head of the connector such as the screw or bolt can be inserted into the third connector 1122 without protruding from the outer surface of the third connector 1122.

[0208] In some embodiments, the third connector portion 11221 includes a third connector boss 11224 located outside the third connector portion 11221.

[0209] A third connector boss 11224 is provided on the outside of the third connector part 11221, which can limit the installation of the first sealing strip, thereby achieving the sealing and waterproofing of the frame 11.

[0210] Figure 14 (a) and Figure 14 (b) shows a structural schematic diagram of the boss 114 according to an embodiment of this application. Figure 14 (a) and Figure 14 As shown in (b), the first joint boss 11110a, the second joint boss 11110b and the first boss 1133 on one side of the frame 11 form a continuous boss 114, and / or the first joint boss 11110a, the second joint boss 11110b and the third joint boss 11224 and the first boss 1133 on one side of the frame 11 form a continuous boss 114.

[0211] Multiple protrusions located on the same plane are connected to form a continuous protrusion 114. A first sealing strip 1135 that is completely closed can be set along one side of the continuous protrusion 114, thereby achieving large-area sealing and waterproofing of the entire surface of the frame 11.

[0212] In some embodiments, each of the six faces of the frame 11 includes a boss 114, which is quadrilateral.

[0213] A boss 114 is provided on each of the six sides of the frame 11, and the boss 114 is set as a quadrilateral, which can take into account each side of the frame 11 and each area on the surface, so as to achieve a comprehensive sealing and waterproof effect for the frame 11 as a whole.

[0214] Figure 15 Another structural schematic diagram of the framework 11 according to an embodiment of this application is shown. For example... Figure 15As shown, the frame 11 includes 8n+4 connecting beams 113, eight first joint assemblies 111 and 4n-4 second joint assemblies 112, where n is an integer and n≥2; the frame 11 has n accommodating spaces; the plane containing every four second joint assemblies 112 on the same plane is parallel to either of the two opposite faces of the frame 11.

[0215] The frame 11 is divided into n accommodating spaces by using 8n+4 connecting beams 113, eight first joint assemblies 111, and 4n-4 second joint assemblies 112, which can meet different multi-accommodating space storage needs of the frame 11. In addition, setting the plane of every four second joint assemblies 112 on the same plane to be parallel to any one of the two opposite planes of the frame 11 allows the multiple accommodating spaces of the frame 11 to be arranged regularly in the same direction, thereby improving the uniformity of the frame 11 production.

[0216] It should be understood that this embodiment is also applicable to Figure 2 The frame shown is 11.

[0217] It should be understood that, since the first connector assemblies 111 are all located at the apex of the frame 11, the number of the first connector assemblies 111 is eight in all possible forms of this embodiment.

[0218] For example, such as Figure 2 As shown, Figure 2 The frame 11 shown uses 20 connecting beams 113, eight first joint assemblies 111 and four second joint assemblies 112 to divide the frame 11 into two accommodating spaces.

[0219] For example, such as Figure 15 As shown, Figure 15 The frame 11 shown uses 28 connecting beams 113, eight first joint assemblies 111 and eight second joint assemblies 112 to divide the frame 11 into three accommodating spaces.

[0220] It should be understood that the accommodating space in frame 11 can be as follows: Figure 15 The uniform division shown means that all connecting beams 113 located on the same side of frame 11 have the same length; the accommodating space in frame 11 can also be as follows: Figure 2 The uneven division shown means that the lengths of the connecting beams 113 located on the same side of the frame 11 are not exactly the same. This application does not limit this aspect.

[0221] In some embodiments, the outer surface of the connecting beam 113 and the outer surface of the corresponding joint assembly are continuous surfaces.

[0222] Setting the outer surface of the connecting beam 113 and the outer surface of the corresponding joint assembly as a continuous surface allows for a better operating foundation when other components need to be installed or surface treatments (such as painting or electroplating) are required, reducing the risk of installation difficulties or poor surface treatment results due to uneven surfaces.

[0223] It should be understood that the outer surface of the connecting beam 113 and the outer surface of the corresponding joint assembly are continuous surfaces. That is, after the connecting beam 113 and the corresponding joint assembly are connected to each other, there are no obvious steps, gaps or abrupt changes at the connection position of the outer surface. The outer surface of the connecting beam 113 and the outer surface of the corresponding joint assembly are combined to form a basically continuous and extended surface.

[0224] In some embodiments, the connecting beam 113 and the plug portion 1113 are welded and fixed at the connection point.

[0225] The plug part 1113 and the connecting beam 113 are connected by welding, so that the connecting beam 113 and the plug part 1113 can achieve a stable and reliable sealed connection.

[0226] Specifically, arc welding, laser welding, or ultrasonic welding can be performed on the end face of the plug portion 1113 and the interface position of the connecting beam 113 to connect the plug portion 1113 and the connecting beam 113, while also sealing the connection interface. Alternatively, plug welding or other methods can be used to weld between the plug portion 1113 and the side wall of the connecting beam 113, resulting in a larger welding area and improved weld strength. In this way, after the plug portion 1113 is inserted into the connecting beam 113, welding is performed at the interface position, or plug welding or other methods are used to weld between the plug portion 1113 and the connecting beam 113, so that the plug portion 1113 and the connecting beam 113 achieve a stable and reliable sealed connection.

[0227] It should be understood that the connecting beam 113 and the plug part 1113 can also be connected by other means such as threaded connection, riveting, fastener connection, bonding or bending connection, and the embodiments of this application do not limit this.

[0228] In some embodiments, the outer surface treatment of the frame 11 includes at least one of the following treatment methods: electrophoresis, powder coating, or painting.

[0229] Surface treatment of the outer surface of the frame 11 by means of electrophoresis, powder coating, or painting can improve the corrosion resistance of the outer surface of the frame 11, thereby increasing the service life of the frame 11.

[0230] 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 11, 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 11 under the action of the electric field force, and deposit a uniform and dense paint film on the surface of the frame 11, ensuring the consistency of the sealing and protective performance of the entire surface of the frame 11.

[0231] 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 11, 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 11 may encounter during use, protecting the surface of the frame 11 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 11.

[0232] It should be understood that spray painting involves atomizing liquid paint using a spray gun and applying it to the surface of frame 11. 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.

[0233] It should be understood that the first through holes 1132 can be sealed before the outer surface of the frame 11 is treated. When a conductive connector is connected to the first through hole 1132 on the outer surface of the frame 11, the surface of the frame 11 may lose its conductivity after special surface treatment. Therefore, the first through holes 1132 are sealed before the surface treatment of the frame 11 to shield them. In this way, when the connector is connected to the first through hole 1132, the connector can achieve equipotential connection with the frame 11 by contacting the hole wall of the first through hole 1132, thereby making the potential of each structure and part of the frame 11 consistent and reducing the risk of electrical damage to the frame 11 due to potential differences.

[0234] Figure 16 Another structural schematic diagram of the framework 11 according to an embodiment of this application is shown. For example... Figure 16 As shown, the frame 11 includes a door panel 115, which is fixed to the frame 11 by a hinge 116 provided in the first through hole 1132.

[0235] A door panel 115 is installed on the frame 11 and fixed by a hinge 116, which can meet the need for flexible access in the energy storage device 100 based on the frame 11, and can achieve a stable and reliable connection between the door panel 115 and the frame 11.

[0236] For example, such as Figure 16 As shown, the frame 11 includes two accommodating spaces, on which a pair of hinged door panels 115 can be installed on opposite sides of the surface of the frame 11 not covered by the skin 1134 via hinges 116.

[0237] It should be understood that the hinge 116 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 115 opens and closes. One metal piece is fixed at the first through hole 1132 of the frame 11 as a fixed wing; the other is connected to the door panel 115 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, and has good wear resistance and corrosion resistance, ensuring stable rotational performance during long-term frequent rotation. Its diameter and length are determined according to the load-bearing capacity and design requirements of the hinge 116.

[0238] It should be understood that the door panels 115 can be configured to open in opposite directions or to be configured in the same direction; this application embodiment does not limit this.

[0239] It should be understood that the door panel 115 can also be fixed to the frame 11 in other ways besides hinge connection. For example, a groove can be provided on the frame 11 to limit the sliding of the door panel 115 in the groove. This application embodiment does not limit this.

[0240] It should be understood that the door panel 115 can be adapted to meet the needs of different storage environments. For example, in a non-sealed storage environment that requires ventilation, ventilation mechanisms such as grids or grilles can be installed on the door panel 115, and the non-sealed storage environment can be used to install components that require ventilation and heat dissipation; as another example, in a sealed storage environment that requires airtight storage, the door panel 115 can be integrally molded without through holes, and the sealed storage environment can be used to install electrical components that require waterproofing.

[0241] According to some embodiments of this application, such as Figure 1As shown, this application provides an energy storage device 100, including a frame 11 and one or more battery devices 200 disposed within the frame 11. The frame 11 includes a plurality of connecting beams 113 extending along a first direction, and each connecting beam 113 includes two connecting portions 11310 disposed opposite to each other along the first direction; a plurality of first connector assemblies 111, each first connector assembly 111 including three mutually perpendicular plug portions 1113; and a plurality of second connector assemblies 112, each second connector assembly 112 including four plug portions 1113, wherein three plug portions 1113 are mutually perpendicular, and the third plug portion 1113 is disposed opposite to one of the three mutually perpendicular plug portions 1113 in the same direction; wherein each connecting portion 11310 is connected to one plug portion 1113 to form a frame 11 having at least two accommodating spaces.

[0242] It should be understood that the frame 11 may also include the frame 11 in any embodiment.

[0243] According to some embodiments of this application, such as Figure 17 As shown, this application provides an energy storage system 400, including a power conversion device 401 and an energy storage device 100 as described in the above embodiments. The power conversion device 401 is electrically connected between the power generation device 402 and the energy storage device 100.

[0244] Please refer to Figure 17 The energy storage system 400 may include a power converter system 401 (PCS) and one or more of the aforementioned energy storage devices 100. The power converter system 401 is connected between the power generation device 402 and the energy storage device 100. The power generation device 402 generates electrical energy, which can be stored in the energy storage device 100 through the power converter system 401. As an example, the power generation device 402 may be, but is not limited to, solar panels, hydroelectric power generation equipment, thermal power generation equipment, wind power generation equipment, etc. The energy storage system 400 provided in this application embodiment can be any power system that requires the use of the energy storage device 100.

[0245] According to some embodiments of this application, such as Figure 18 As shown, this application provides a charging network 300, including a charging pile 301 and an energy storage device 100 as described in the above embodiments or an energy storage system 400 as described in the above embodiments. The energy storage device 100 is used to provide electrical energy to the charging pile 301.

[0246] Please refer to Figure 18The charging pile 301 is electrically connected to the battery device 200 in the energy storage device 100 via a cable. The battery device 200 can supply its stored electrical energy to the charging pile 301. The charging pile 301 has one or more connectors 302 for connecting to electrical equipment (such as vehicles) to replenish the energy of the equipment. The energy storage device 100 can be located inside the charging pile 301 (e.g., an integrated charging and energy storage unit) or outside the charging pile 301.

[0247] In some embodiments, the charging network 300 may include a charging pile 301 and an energy storage system 400. The charging pile 301 is electrically connected to the energy storage system 400, which provides electrical energy to the charging pile 301. The charging pile 301 is electrically connected to a battery device 200 in the energy storage system 400 via a cable, and the battery device 200 can provide its stored electrical energy to the charging pile 301.

[0248] According to some embodiments of this application, see Figures 2 to 16 This application provides a frame 11, comprising: a plurality of connecting beams 113 extending along a first direction, each connecting beam 113 including two connecting portions 11310 disposed opposite to each other along the first direction; a plurality of first connector assemblies 111, each first connector assembly 111 including three mutually perpendicular plug portions 1113; and a plurality of second connector assemblies 112, each second connector assembly 112 including four plug portions 1113, wherein three plug portions 1113 are mutually perpendicular, and the third plug portion 1113 is disposed opposite to one of the three mutually perpendicular plug portions 1113 in the same direction; wherein each connecting portion 11310 is connected to one plug portion 1113 to form a frame 11 having at least two accommodating spaces.

[0249] The connecting beam 113 includes two mutually perpendicular outer walls 1131 located outside the frame 11, and the first wall of the two outer walls 1131 includes a plurality of first through holes 1132.

[0250] Multiple first through holes 1132 are arranged along a first direction; wherein, the connecting beam 113 further includes a first boss 1133 extending along the first direction outside the first wall, and the first boss 1133 is located on the same side of the multiple first through holes 1132.

[0251] The frame 11 includes a skin 1134 disposed on the outside of the frame 11, and the skin 1134 is connected and fixed to the frame 11 by bolts 1136 to the first through hole 1132.

[0252] The frame 11 includes a first sealing strip 1135 located between the first wall and the skin 1134; wherein the projection of the first sealing strip 1135 along the thickness direction of the first wall and the projection of the first boss 1133 along the thickness direction of the first wall have no overlapping area, and the first sealing strip 1135 is hollowed out at a plurality of first through holes 1132.

[0253] The thickness of the first sealing strip 1135 located between the skin 1134 and the first wall is the same as the height of the first boss 1133.

[0254] The ratio of the thickness dimension of the first sealing strip 1135 located between the skin 1134 and the first wall to the thickness dimension of the first sealing strip 1135 is greater than or equal to 0.5 and less than or equal to 0.6.

[0255] The connecting beam 113 also includes at least one inner wall 1137 located inside the frame 11, and a second wall in the at least one inner wall 1137 includes a plurality of second through holes 1139 for connection with bolts 1136 to install plates or brackets.

[0256] The frame 11 includes a first rivet nut 11311 disposed in a first through hole 1132 and / or a second rivet nut 1138 disposed in a second through hole 1139; wherein the height of the flange section 11361 of the first rivet nut is the same as the height of the first boss 1133.

[0257] The first connector assembly 111 includes three identical interconnected first connectors 1111, each first connector 1111 including a first connector portion 1112 and a plug portion 1113, the three first connector portions 1112 being interconnected to form the first connector assembly 111.

[0258] The first connector portion 1112 includes a first sub-part 1114a and a second sub-part 1114b that are perpendicular to each other. The outer surface of the first sub-part 1114a is recessed with a first recess 1115. At least a portion of the second sub-part 1114b of one of the first connector portions 1112 in the first connector assembly 111 is embedded in the first recess 1115 of the other first connector portion 1112, so that the outer surfaces of the interconnected first sub-part 1114a and the outer surfaces of the second sub-part 1114b are flush.

[0259] The first recessed platform 1115 of the first sub-part 1114a is provided with a first connecting hole 1116a, and the second sub-part 1114b is provided with a second connecting hole 1116b. The first connecting hole 1116a and the second connecting hole 1116b are connected and fitted to connect the first sub-part 1114a and the second sub-part 1114b.

[0260] The first connector portion 1112 also includes a first wedge surface 1117a and a second wedge surface 1117b, wherein the first wedge surface 1117a of one of the first connector portions 1112 in the first connector assembly 111 abuts against the second wedge surface 1117b of the other first connector portion 1112.

[0261] The plane containing the first wedge surface 1117a and the plane containing the second wedge surface 1117b have a first included angle of 120°.

[0262] The first wedge surface 1117a includes a groove 1118, and the second wedge surface 1117b includes a protrusion 1119. The protrusion 1119 of one of the first connector portions 1112 in the first connector assembly 111 is sealed and engaged with the groove 1118 of the other first connector portion 1112.

[0263] The first connector portion 1112 includes a first connector boss 11110a located in the first sub-part 1114a and / or a second connector boss 11110b located in the second sub-part 1114b.

[0264] The second connector assembly 112 includes two interconnected second connectors 1121 and a third connector 1122. Each second connector 1121 includes a second connector portion 11211 and a plug portion 1113. The third connector 1122 includes a third connector portion 11221 and two plug portions 1113. The third connector portion 11221 includes a cavity 11222. The two interconnected second connector portions 11211 are adapted to be inserted into the cavity 11222 to form the second connector assembly 112.

[0265] The second connector portion 11211 includes a third sub-portion 11212 and a fourth sub-portion 11213. The outer surface of the third sub-portion 11212 is recessed with a second recess 11214. At least a portion of the third sub-portion 11212 of one of the second connector portions 11211 in the second connector assembly 112 is embedded in the second recess 11214 of the other second connector portion 11211, so that the outer surfaces of the interconnected third sub-portion 11212 and the outer surfaces of the fourth sub-portion 11213 are flush.

[0266] The second recessed platform 11214 of the third sub-part 11212 is provided with a third connecting hole 11215, and the fourth sub-part 11213 is provided with a fourth connecting hole 11216. The third connecting hole 11215 and the fourth connecting hole 11216 are connected and fitted to connect the third sub-part 11212 and the fourth sub-part 11213.

[0267] The second joint portion 11211 also includes a positioning wedge surface 11217. In the two interconnected second joint portions 11211, the two positioning wedge surfaces 11217 abut against each other to make the two connecting beams 113 vertically connected.

[0268] The cavity wall of the cavity 11222 includes a fifth connecting hole 11223, and the second connector 11211 includes a sixth connecting hole 11218. The fifth connecting hole 11223 and the sixth connecting hole 11218 are used to cooperate with the connector to connect the third connector 11221 and the second connector 11211.

[0269] The third connector portion 11221 includes a third connector boss 11224 located outside the third connector portion 11221.

[0270] The first joint boss 11110a, the second joint boss 11110b and the first boss 1133 on one side of the frame 11 form a continuous boss 114, and / or the first joint boss 11110a, the second joint boss 11110b and the third joint boss 11224 and the first boss 1133 on one side of the frame 11 form a continuous boss 114.

[0271] All six faces of frame 11 include a boss 114, which is a quadrilateral.

[0272] The frame 11 includes 8n+4 connecting beams 113, eight first joint assemblies 111 and 4n-4 second joint assemblies 112, where n is an integer and n≥2; the frame 11 has n accommodating spaces; the plane containing every four second joint assemblies 112 on the same plane is parallel to either of the two opposite faces of the frame 11.

[0273] The outer surface of the connecting beam 113 and the outer surface of the corresponding joint assembly are continuous surfaces.

[0274] The connecting beam 113 and the plug part 1113 are welded and fixed at the connection.

[0275] The outer surface treatment of frame 11 includes at least one of the following methods: electrophoresis, powder coating, or painting.

[0276] The frame 11 includes a door panel 115, which is fixed to the frame 11 by a hinge 116 provided in the first through hole 1132.

[0277] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0278] 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 (11) comprises: a plurality of connecting beams (113) extending along a first direction, the connecting beams (113) comprising two connecting portions (11310) oppositely arranged along the first direction; a plurality of first joint assemblies (111) comprising three plug portions (1113) perpendicular to each other; a plurality of second joint assemblies (112) comprising four plug portions (1113), wherein three plug portions (1113) are perpendicular to each other, and another plug portion (1113) is oppositely arranged along the same direction as one of the three plug portions (1113) perpendicular to each other; wherein each connecting portion (11310) is connected with one plug portion (1113) to form the frame (11) having at least two accommodation spaces.

2. The frame of claim 1, wherein, The connecting beam (113) comprises two outer walls (1131) perpendicular to each other outside the frame (11), and a first wall of the two outer walls (1131) comprises a plurality of first through holes (1132).

3. The frame of claim 2, wherein, The plurality of first through holes (1132) are arranged along the first direction. The connecting beam (113) further comprises a first boss (1133) extending along the first direction outside the first wall, and the first boss (1133) is located on the same side of the plurality of first through holes (1132).

4. The frame of claim 3, wherein, The frame (11) comprises a skin (1134) arranged outside the frame (11), and the skin (1134) is connected and fixed to the frame (11) through bolts (1136) and the first through holes (1132).

5. The frame of claim 4, wherein, The frame (11) comprises a first sealing strip (1135) between the first wall and the skin (1134). The projection of the first sealing strip (1135) along the thickness direction of the first wall has no overlapping area with the projection of the first boss (1133) along the thickness direction of the first wall, and the first sealing strip (1135) is hollowed out at the plurality of first through holes (1132).

6. The frame of claim 5, wherein, The thickness dimension of the first sealing strip (1135) between the skin (1134) and the first wall is the same as the height of the first boss (1133).

7. The frame of claim 5, wherein, The ratio of the thickness dimension of the first sealing strip (1135) between the skin (1134) and the first wall to the thickness dimension of the first sealing strip (1135) is greater than or equal to 0.5 and less than or equal to 0.

6.

8. The frame of claim 3, wherein, The connecting beam (113) further comprises at least one inner wall (1137) inside the frame (11), and a second wall of the at least one inner wall (1137) comprises a plurality of second through holes (1139) for connecting with bolts (1136) to install a plate or a bracket.

9. The frame of claim 8, wherein, The frame (11) comprises a first pull nut (11311) arranged in the first through hole (1132) and / or a second pull nut (1138) arranged in the second through hole (1139). The first pull nut flange section (11361) has the same height as the first boss (1133).

10. The frame of claim 1, wherein, The first joint assembly (111) comprises three identical first joints (1111) connected with each other, each of the first joints (1111) comprises a first joint part (1112) and a plug part (1113), and the three first joint parts (1112) are connected with each other to form the first joint assembly (111).

11. The frame of claim 10, wherein, The first joint part (1112) comprises a first sub-part (1114a) and a second sub-part (1114b) perpendicular to each other, the first sub-part (1114a) is concave with a first sunken platform (1115) on the outer surface, and at least part of the second sub-part (1114b) of one of the first joint parts (1112) in the first joint assembly (111) is embedded in the first sunken platform (1115) of another first joint part (1112) to make the outer surfaces of the first sub-parts (1114a) and the second sub-parts (1114b) connected with each other flush.

12. The frame of claim 11, wherein, The first sunken platform (1115) of the first sub-part (1114a) is provided with a first connecting hole (1116a), and the second sub-part (1114b) is provided with a second connecting hole (1116b), the first connecting hole (1116a) and the second connecting hole (1116b) are connected and matched to connect the first sub-part (1114a) and the second sub-part (1114b).

13. The frame of claim 10, wherein, The first joint part (1112) further comprises a first wedge surface (1117a) and a second wedge surface (1117b), the first wedge surface (1117a) of one of the first joint parts (1112) in the first joint assembly (111) abuts against the second wedge surface (1117b) of another first joint part (1112).

14. The frame of claim 13, wherein, The plane where the first wedge surface (1117a) is located and the plane where the second wedge surface (1117b) is located have a first included angle, and the first included angle is 120°.

15. The frame of claim 13, wherein, The first wedge surface (1117a) comprises a groove (1118), and the second wedge surface (1117b) comprises a protrusion (1119), the protrusion (1119) of one of the first joint parts (1112) in the first joint assembly (111) is sealingly connected with the groove (1118) of another first joint part (1112).

16. The frame of claim 11, wherein, The first joint part (1112) comprises a first joint boss (11110a) located on the first sub-part (1114a) and / or a second joint boss (11110b) located on the second sub-part (1114b).

17. The frame of claim 1, wherein, The second joint assembly (112) comprises two second joints (1121) and a third joint (1122) connected with each other, each of the second joint (1121) comprises a second joint part (11211) and the plug part (1113), the third joint (1122) comprises a third joint part (11221) and two plug parts (1113), the third joint part (11221) comprises a cavity (11222), the two second joint parts (11211) connected with each other are adapted to be inserted into the cavity (11222) to form the second joint assembly (112).

18. The frame of claim 17, wherein, The second joint part (11211) comprises a third sub part (11212) and a fourth sub part (11213), the third sub part (11212) is concave on the outer surface to form a second sunken platform (11214), at least part of the third sub part (11212) of one of the second joint parts (11211) in the second joint assembly (112) is embedded into the second sunken platform (11214) of the other second joint part (11211) to make the outer surface of the third sub part (11212) and the outer surface of the fourth sub part (11213) flush.

19. The frame of claim 18, wherein, The second sunken platform (11214) of the third sub part (11212) is provided with a third connecting hole (11215), the fourth sub part (11213) is provided with a fourth connecting hole (11216), the third connecting hole (11215) and the fourth connecting hole (11216) are connected and matched to connect the third sub part (11212) and the fourth sub part (11213).

20. The frame of claim 19, wherein, The second joint part (11211) further comprises a positioning wedge surface (11217), among the two second joint parts (11211) connected with each other, the two positioning wedge surfaces (11217) abut to make the two connecting beams (113) vertically connected.

21. The frame of claim 20, wherein, The cavity wall of the cavity (11222) comprises a fifth connecting hole (11223), the second joint part (11211) comprises a sixth connecting hole (11218), the fifth connecting hole (11223) and the sixth connecting hole (11218) are used to cooperate with a connecting piece to connect the third joint part (11221) and the second joint part (11211).

22. The frame of claim 21, wherein, The third joint part (11221) comprises a third joint boss (11224) located outside the third joint part (11221).

23. The frame of claim 22, wherein, The first joint boss (11110a) of the first joint assembly (111), the second joint boss (11110b) of the second joint assembly (112) and the first boss (1133) of the connecting beam (113) on one face of the frame (11) constitute a continuous boss (114), and / or the first joint boss (11110a), the second joint boss (11110b), the third joint boss (11224) and the first boss (1133) on one face of the frame (11) constitute the continuous boss (114).

24. The frame of claim 23, wherein, The six faces of the frame (11) each include the boss (114), and the boss (114) is a quadrilateral.

25. The frame of any one of claims 1 to 22, wherein, The frame (11) includes 8n+4 connecting beams (113), eight first joint assemblies (111) and 4n-4 second joint assemblies (112), wherein n is an integer and n≥2; the frame (11) has n accommodation spaces; Every four second joint assemblies (112) in the same plane are arranged on a plane parallel to any one of the two opposite faces of the frame (11).

26. The frame of any one of claims 1 to 22, wherein, The outer surface of the connecting beam (113) and the outer surface of the corresponding joint assembly are continuous surfaces.

27. The frame of any one of claims 1 to 22, wherein, The connecting beam (113) is welded and fixed at the connection with the plug portion (1113).

28. The frame of any one of claims 1 to 22, wherein, The outer surface treatment of the frame (11) includes at least one of the following treatment methods: electrophoresis, powder spraying or paint spraying.

29. The frame of any one of claims 2 to 9, wherein, The frame (11) includes a door plate (115), and the door plate (115) is fixed to the frame (11) through a hinge (116) arranged in the first through hole (1132).

30. An energy storage device, comprising: Comprise: The frame (11) comprises the frame (11) according to any one of claims 1 to 29; A plurality of battery devices (200) are arranged in the frame (11).

31. A charging network characterized by, Comprise a charging pile (301) and the energy storage device (100) according to claim 30, wherein the energy storage device (100) is used to provide electric energy for the charging pile (301).

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