Battery device, box body and electric equipment

Abstract

The utility model discloses a battery device, a box body and electric equipment. The battery device comprises a frame body, a first beam body, a second beam body, a first sleeve and a connecting piece, the housing has an accommodation space for accommodating the battery cells. The first beam body is connected to the frame body, and a first connecting hole is formed in the first beam body. The second beam body is connected to the frame body, and the extending direction of the second beam body intersects with the extending direction of the first beam body. The first sleeve is arranged on the second beam body, and a second connecting hole is formed in the first sleeve. The second connecting hole corresponds to the first connecting hole, and the first sleeve and the second beam body are of an integrally-formed structure. The connecting piece penetrates through the first connecting hole and the second connecting hole to connect the first beam body and the second beam body. According to the battery device, the box body and the electric equipment, the first sleeve and the second beam body are integrally formed, so that the number of parts is reduced, the connection strength and the connection stability of the connecting piece and the second beam body are improved, and the assembly efficiency of the battery device is improved.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a battery device, a box, and electrical equipment. Background Art

[0002] Batteries are widely used in various electronic devices, such as mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy airplanes, electric toy ships, power tools and energy storage systems, etc.

[0003] Currently, how to improve the manufacturing efficiency of batteries is one of the research issues in this field. Utility Model Content

[0004] In view of the above problems, the present application provides a battery device, a box and an electrical device, which can improve the assembly efficiency of the battery device.

[0005] In a first aspect, the present application provides a battery device, comprising a frame, a first beam, a second beam, a first sleeve, and a connector. The frame has a storage space for accommodating a battery cell. The first beam is connected to the frame, and a first connection hole is provided on the first beam. The second beam is connected to the frame, and an extension direction of the second beam intersects with an extension direction of the first beam. The first sleeve is provided on the second beam, and a second connection hole is provided on the first sleeve. The second connection hole is provided corresponding to the first connection hole, and the first sleeve and the second beam are an integrally formed structure. The connector passes through the first connection hole and the second connection hole to connect the first beam and the second beam.

[0006] In the technical solution of the embodiment of the present application, a stable space is provided for the battery cell by setting a frame. The first beam and the second beam are provided to improve the structural stability of the frame, while limiting the deformation of the battery cell, improving the stability of the operation of the battery cell and the assembly efficiency. The second connecting hole is provided on the first sleeve, and the first connecting hole is provided on the first beam, so that the connecting member can connect the first beam and the second beam. In particular, the first sleeve and the second beam are integrally formed, which reduces the number of parts, improves the connection strength and connection stability between the connecting member and the second beam, and improves the assembly efficiency of the battery device.

[0007] In some embodiments, the second beam body includes a beam body and a reinforcing rib. The beam body has a buffer cavity, the reinforcing rib is arranged in the buffer cavity, and the first sleeve is connected to the reinforcing rib. In the above structure, the reinforcing rib is arranged in the beam body to limit the risk of deformation of the second beam body and improve the stability of the beam body structure. The first sleeve is connected to the reinforcing rib, which can improve the convenience of manufacturing and the stability of the connection between the first sleeve and the second beam body.

[0008] In some embodiments, the reinforcing ribs include first reinforcing ribs and second reinforcing ribs arranged to intersect each other. By arranging the first reinforcing ribs to intersect the second reinforcing ribs, the deformation resistance of the second beam body is further improved.

[0009] In some embodiments, the second beam body further includes a first support portion, which is disposed between the outer wall of the first sleeve and the beam body. In the above structure, by providing the support portion, the risk of displacement or falling off of the cylindrical connecting sleeve is reduced, and the connection strength between the cylindrical connecting sleeve and the beam body is improved.

[0010] In some embodiments, the connecting member includes a bolt, and a threaded hole is provided in the second connecting hole. In the above structure, by using standard parts as connecting members, manufacturing efficiency and assembly flexibility are improved.

[0011] In some embodiments, the battery device further comprises a box plate and a second sleeve. The box plate is connected to the frame. The second sleeve is arranged on the second beam, and a third connection hole is arranged on the second sleeve. In the above structure, the box plate is arranged to protect the battery cell and improve the operation stability of the battery cell. The third connection hole is arranged to improve the efficiency of the connection between the box plate and the second beam.

[0012] In some embodiments, the second sleeve and the second beam are integrally formed. The above structure improves the connection strength between the second beam and the box plate, and improves the assembly efficiency of the box.

[0013] In some embodiments, the second beam body further includes a second support portion, and the second support portion is provided with the second sleeve along the circumference of the second sleeve. In the above structure, by providing the second support portion, the risk of displacement or falling off of the second sleeve is reduced, and the connection strength between the second sleeve and the beam body is improved.

[0014] In some embodiments, there are two box plates, the two box plates are arranged opposite to each other along the first direction, and the first beam and the second beam are arranged between the two box plates. The axial direction of the third connection hole extends along the first direction, and the two box plates are respectively connected to the two ends of the second sleeve through the third connection hole. Two box plates are provided to seal the accommodating space, improve the sealing performance of the battery device, and provide a stable space for the stable operation of the battery cell. The third connection hole runs through the second beam, reduces the number of connecting parts, and improves the efficiency of the connection between the box plate and the frame.

[0015] In some embodiments, the battery device further comprises a fastener, the box plate is provided with a mounting hole corresponding to the third connection hole, and the fastener passes through the mounting hole and the third connection hole to connect the box plate and the second beam. By providing the fastener to stably connect the box plate and the second beam, the stability of the overall structure of the battery device is improved.

[0016] In some embodiments, a threaded hole is provided in the third connection hole, and the fastener includes a connection bolt. In the above structure, the fastener is a connection bolt, which detachably connects the box plate and the frame, thereby improving assembly efficiency and maintenance convenience.

[0017] In a second aspect, the present application provides a box body, which includes a frame body, a first beam body, a second beam body, a first sleeve and a connector. The frame body has a storage space for accommodating a battery cell. The first beam body is connected to the frame body, and a first connecting hole is provided on the first beam body. The second beam body is connected to the frame body, and an extension direction of the second beam body intersects with an extension direction of the first beam body. The first sleeve is provided on the second beam body, and a second connecting hole is provided on the first sleeve. The second connecting hole is provided corresponding to the first connecting hole, and the first sleeve and the second beam body are an integrally formed structure. The connector passes through the first connecting hole and the second connecting hole to connect the first beam body and the second beam body.

[0018] In a third aspect, the present application provides an electrical device, which includes the box mentioned in the first aspect or the battery device mentioned in the second aspect, and the battery device is used to provide electrical energy.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0021] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0022] Figure 2 A schematic diagram of the structure of a box of a battery device provided in some embodiments of the present application;

[0023] Figure 3 A schematic diagram of the structure of a second beam body provided in some embodiments of the present application;

[0024] Figure 4 A schematic diagram of the structure of a first beam body and a second beam body provided in some embodiments of the present application;

[0025] Figure 5 A schematic diagram of the structure of a first beam body and a second beam body provided in other embodiments of the present application;

[0026] Figure 6 for Figure 5 Structural diagram of the AA section;

[0027] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0028] DETAILED DESCRIPTION OF REFERENCE NUMERALS

[0029] 1. Vehicle; 2. Battery device; 3. Controller; 4. Motor; 5. Box; 501. Frame; 502. First beam; 503. Second beam; 504. First sleeve; 505. Connector; 506. Second connecting hole; 507. First connecting hole; 508. Beam body; 509. Reinforcement rib; 510. Buffer cavity; 511. Bottom wall; 512. Side wall; 513. First reinforcement rib; 514. Second reinforcement rib; 515. Second sleeve; 516. First support portion; 517. Third connecting hole; 518. Second support portion. DETAILED DESCRIPTION

[0030] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0032] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0035] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0036] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0037] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0038] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0039] In the embodiments of the present application, the same reference numerals represent 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 the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0040] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

[0041] At present, a frame is provided in the battery device, and the frame has a storage space for accommodating battery cells. A beam is also provided in the storage space to improve the overall stability of the battery device and limit the expansion and deformation of the battery cells. The beams are usually connected by bolts. In order to improve the stability of the connection, it is necessary to set a connecting sleeve on the beam by welding, bolting, etc. to provide a stable installation point for the bolt. This connection method has a large number of connecting parts and a complex connection process, which reduces the assembly efficiency of the battery device.

[0042] In order to improve the assembly efficiency of the battery device. An embodiment of the present application provides a battery device, in which a frame is provided to provide a stable space for the battery cells. A first beam and a second beam are provided to improve the structural stability of the frame, while limiting the deformation of the battery cells, thereby improving the stability of the operation of the battery cells and the assembly efficiency. A second connecting hole is provided on the first sleeve, and a first connecting hole is provided on the first beam to facilitate the connection of the first beam and the second beam by a connecting member. In particular, the first sleeve and the second beam are integrally formed, which reduces the number of parts, improves the connection strength and connection stability between the connecting member and the second beam, and improves the assembly efficiency of the battery device.

[0043] The battery device of the present application is described in detail below.

[0044] The battery apparatus mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, in parallel or in mixed connection through a busbar component.

[0045] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells; as an example, a battery cell assembly may be a battery module, and a battery module is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, a battery module may be formed by bundling a plurality of battery cells by a cable tie.

[0046] In some embodiments, the battery device may be a battery pack, which includes a case and one or more battery cell assemblies, wherein the battery cell assemblies are accommodated in the case.

[0047] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box by fixing the battery module in the box.

[0048] As an example, the battery cell assembly may also be housed in the case by directly fixing a plurality of battery cells to the case.

[0049] In the embodiment of the present application, the battery cell may be a secondary battery cell, which refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0050] Battery cells may include but are not limited to lithium ion battery cells, sodium ion battery cells, sodium lithium ion battery cells, lithium metal battery cells, sodium metal battery cells, lithium sulfur battery cells, magnesium ion battery cells, nickel metal hydride battery cells, nickel cadmium battery cells, lead storage battery cells, etc.

[0051] As an example, the battery cell may be a cylindrical battery cell, a prismatic battery cell or a battery cell of other shapes. The prismatic battery cell includes a square shell battery cell, a blade-shaped battery cell, a polygonal battery, such as a hexagonal battery, etc. There is no particular limitation in the present application.

[0052] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0053] In some embodiments, the battery device may be an energy storage device, which includes an energy storage container, an energy storage cabinet, and the like.

[0054] The battery device disclosed in the embodiments of the present application can be used in various energy storage systems that use the battery device as a power source or use the battery device as an energy storage element. The electrical device can be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, and the like. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like, and the spacecraft can include an airplane, a rocket, a space shuttle, and a spacecraft, and the like.

[0055] For the convenience of description, the following embodiments are described by taking the electric device as a vehicle as an example.

[0056] Figure 1 A schematic diagram of the structure of a vehicle provided for some embodiments of the present application.

[0057] like Figure 1As shown, a battery device 2 is disposed inside the vehicle 1, and the battery device 2 may be disposed at the bottom, head, or tail of the vehicle 1. The battery device 2 may be used to power the vehicle 1, for example, the battery device 2 may be used as an operating power source for the vehicle 1.

[0058] The vehicle 1 may further include a controller 3 and a motor 4 , wherein the controller 3 is used to control the battery device 2 to supply power to the motor 4 , for example, to meet the power requirements of starting, navigating and driving the vehicle 1 .

[0059] In some embodiments of the present application, the battery device 2 can not only serve as an operating power source for the vehicle 1, but also serve as a driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0060] The box is used to accommodate battery cells, and the box can be of various structures. In some embodiments, the box may include a frame, a first box plate and a second box plate, the first box plate and the second box plate cover each other, and the frame, the first box plate and the second box plate jointly define a storage space for accommodating battery cells. The first box plate and the second box plate can be plate-like structures to form a box with a storage space; the first box plate and the second box plate can also be hollow structures with one side open, and the open side of the first box plate covers the open side of the second box plate to form a box with a storage space. Of course, the first box plate and the second box plate can be of various shapes, such as a cylinder, a cuboid, etc.

[0061] In order to improve the sealing performance after the first box body plate is connected to the second box body plate, a sealing member, such as a sealant, a sealing ring, etc., may also be provided between the first box body plate and the second box body plate.

[0062] Assuming that the first box body plate is covered on the top of the second box body plate, the first box body plate can also be called an upper box cover, and the second box body plate can also be called a lower box.

[0063] In the battery device 2, there can be one or more battery cells. If there are multiple battery cells, the multiple battery cells can be connected in series, in parallel, or in mixed connection. Mixed connection means that multiple battery cells are connected in series and in parallel. Multiple battery cells can be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells is accommodated in the box; of course, multiple battery cells can also be connected in series, in parallel, or in mixed connection to form a battery module, and then multiple battery modules are connected in series, in parallel, or in mixed connection to form a whole, and accommodated in the box.

[0064] In some optional embodiments, the battery cells may also be directly accommodated in the box body to reduce the connection components or support components required to form the battery module and improve the energy density of the battery device 2.

[0065] For example, a battery cell may be the smallest unit constituting the battery device 2 .

[0066] Please refer to Figures 2 to 7 , Figure 2 This is a schematic diagram of the structure of the box of the battery device provided in some embodiments of the present application. Figure 3 This is a schematic diagram of the structure of the second beam body provided in some embodiments of the present application. Figure 4 A schematic diagram of the structure of a first beam body and a second beam body provided in some embodiments of the present application, Figure 5 The schematic diagram of the structure of the first beam body and the second beam body provided in some other embodiments of the present application is as follows: Figure 6 for Figure 5 Schematic diagram of the structure of the AA section. Figure 7 for Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0067] As shown in the figure, an embodiment of the present application provides a battery device 2, including a frame 501, a first beam 502, a second beam 503, a first sleeve 504 and a connector 505. The frame 501 has a storage space for accommodating a battery cell. The first beam 502 is connected to the frame 501, and a first connection hole 507 is provided on the first beam 502. The second beam 503 is connected to the frame 501, and the extension direction of the second beam 503 intersects with the extension direction of the first beam 502. The first sleeve 504 is provided on the second beam 503, and a second connection hole 506 is provided on the first sleeve 504. The second connection hole 506 is arranged corresponding to the first connection hole 507, and the first sleeve 504 and the second beam 503 are an integrally formed structure. The connector 505 passes through the first connection hole 507 and the second connection hole 506 to connect the first beam 502 and the second beam 503.

[0068] The frame 501 can be made of metal materials to improve the stability of the structure. The first beam 502 can be a structural beam or a limiting beam, and the second beam 503 can also be a structural beam or a limiting beam. Optionally, the first beam 502 and the second beam 503 can be arranged perpendicular to each other. The first beam 502 can be arranged along the length direction of the frame 501, and the second beam 503 can be arranged along the width direction of the frame 501. The battery cell can be arranged in the space enclosed by the first beam 502, the second beam 503 and the frame 501.

[0069] The first sleeve 504 is a cylindrical structure, which is convenient for fast and stable cooperation with the connecting member 505 (such as bolts, pins, etc.), reducing assembly time and complexity. The second connecting hole 506 formed inside the first sleeve 504 enhances the tightness and stability of the connection and improves the overall connection strength. Therefore, it improves the connection efficiency between the connecting member 505 and the first sleeve 504 and the connection strength between the first beam body 502 and the second beam body 503, and improves the overall structural performance of the box body 5.

[0070] The first sleeve 504 and the second beam body 503 are integrally formed. An integrally formed structure means that the first sleeve 504 and the second beam body 503 form an inseparable whole through some method (such as casting, forging, welding, etc.) during the manufacturing process. In the structure in which the first sleeve 504 and the second beam body 503 are integrally formed, the first sleeve 504 is directly manufactured as a part of the second beam body 503, and there is no additional connector 505 or seam between the two. The first sleeve 504 and the second beam body 503 are integrally formed, which improves the connection strength between the two and enables the structure to withstand greater loads and moments. Moreover, this structure can effectively transmit force and moment, and ensure the rigidity and stability of the overall structure. Furthermore, compared with the structure that requires an additional connector 505, the integrally formed structure is simpler in the manufacturing and installation process, reduces the assembly time, and improves the assembly efficiency.

[0071] In the technical solution of the embodiment of the present application, a frame 501 is provided to provide a stable space for the battery cell. The first beam 502 and the second beam 503 are provided to improve the structural stability of the frame 501, while limiting the deformation of the battery cell, improving the stability of the operation of the battery cell and the assembly efficiency. In particular, a second connection hole 506 is provided on the first sleeve 504, and a first connection hole 507 is provided on the first beam 502, so that the connector 505 can connect the first beam 502 and the second beam 503. In particular, the first sleeve 504 and the second beam 503 are integrally formed, which reduces the number of parts, improves the connection strength and connection stability between the connector 505 and the second beam 503, and improves the assembly efficiency of the battery device 2.

[0072] In some optional embodiments, there are two first sleeves 504, and the two first sleeves 504 are spaced apart along the length direction of the first beam 502. The above structure can improve the balance of force on the first beam 502 and the second beam 503, thereby improving the stability of their connection.

[0073] like Figure 3 as well as Figure 4As shown, in some embodiments of the present application, the second beam body 503 includes a beam body 508 and a reinforcing rib 509. The beam body 508 has a buffer cavity 510, the reinforcing rib 509 is disposed in the buffer cavity 510, and the first sleeve 504 is connected to the reinforcing rib 509.

[0074] In the above structure, the beam body 508 serves as the load-bearing body, and a buffer cavity 510 is arranged inside the beam body 508, which not only provides space for the arrangement of the reinforcing ribs 509, but also absorbs and disperses external impacts or loads to a certain extent, thereby protecting the beam body 508 and its connecting structure from direct damage. The reinforcing ribs 509 are arranged in the buffer cavity 510, protruding along the surface direction of the beam body 508 toward the first beam body 502, thereby enhancing the bending, shear and torsion resistance of the beam body 508. Because the reinforcing ribs 509 serve as internal supporting structures, they can effectively resist deformation caused by the expansion of battery cells, ensuring that the beam body maintains a stable shape and performance when subjected to force.

[0075] Connecting the first sleeve 504 to the reinforcing rib 509 has the following advantages: First, the reinforcing rib 509 serves as a more solid support point, providing the first sleeve 504 with a stronger load-bearing capacity and stability. Second, the manufacturing process is simplified, because the reinforcing rib 509 itself can be processed and positioned as part of the connecting component, thereby improving production efficiency and accuracy. In addition, the reinforcing rib 509 itself has a high strength, and the first sleeve 504 is arranged on the reinforcing rib 509 to improve the stability of the connection between the first sleeve 504 and the second beam body 503.

[0076] In some embodiments of the present application, the beam body 508 includes a bottom wall 511 and a side wall 512. The bottom wall 511 is disposed opposite to the first beam body 502. The side wall 512 is connected to the bottom wall 511. There are two side walls 512, which are disposed opposite to each other on both sides of the bottom wall 511, and the two side walls 512 and the bottom wall 511 together enclose a buffer cavity 510.

[0077] In the above structure, the bottom wall 511 is the main load-bearing part of the beam body 508, and is arranged opposite to the first beam body 502, and can bear loads from above or below. The two side walls 512 are arranged opposite to each other on both sides of the bottom wall 511, providing lateral support for the beam body 508, and are also enclosed together with the bottom wall 511 to form a buffer cavity 510, so that the beam body 508 can better resist deformation when subjected to lateral force or torsional force, and maintain the stability of the structure. The buffer cavity 510 is enclosed by the bottom wall 511 and the two side walls 512, providing space for the arrangement of internal structures such as the reinforcing ribs 509. At the same time, the buffer cavity 510 itself also has a certain energy absorption effect, which can absorb and disperse external impacts or loads to a certain extent, thereby protecting the integrity of the beam body 508 and its internal structure. Therefore, the design of the bottom wall 511 and the two side walls 512 enclosing together to form the buffer cavity 510 enhances the structural stability of the second beam body 503. It not only improves the deformation resistance and bearing capacity of the beam, but also optimizes the load transfer method and facilitates the layout and optimization of the internal structure.

[0078] In some embodiments of the present application, the reinforcing rib 509 includes a first reinforcing rib 513 and a second reinforcing rib 514 arranged to intersect each other. Optionally, the first reinforcing rib 513 is arranged perpendicular to the second reinforcing rib 514.

[0079] The first reinforcing ribs 513 and the second reinforcing ribs 514 are arranged in an intersecting manner in the buffer cavity 510. This intersecting layout not only increases the contact area between the reinforcing ribs 509 and the beam body 508, but also forms a more complex support network. When the second beam body 503 is subjected to external forces, the intersecting reinforcing ribs 509 can more effectively disperse and resist these forces, thereby preventing the second beam body 503 from deforming. In particular, when external forces come from different directions, the arrangement of the intersecting reinforcing ribs 509 can provide more comprehensive support and resistance. In addition to enhancing the ability to resist deformation, the intersecting reinforcing ribs 509 also improve the overall stability of the second beam body 503. They support the second beam body 503 like a skeleton, so that it can maintain a stable shape and performance under various working conditions. Therefore, the intersecting first reinforcing ribs 513 and the second reinforcing ribs 514 enhance the ability to resist deformation and the overall stability of the second beam body 503.

[0080] In some embodiments of the present application, the second beam body 503 further includes a first support portion 516 , and the first support portion 516 is disposed between the first sleeve 504 and the beam body 508 .

[0081] Exemplarily, the first support portion 516 has a first side that fits the outer wall of the first sleeve 504 and a second side that fits the side wall 512, and the first side is arranged opposite to the second side. The first support portion 516 can be made of the same material as the reinforcing rib 509, such as aluminum alloy, stainless steel, etc.

[0082] In the above structure, as a key component of the first sleeve 504 and the beam body 508, its main function is to provide additional support and fixing. The risk of displacement or falling off of the first sleeve 504 when subjected to external force is reduced, thereby maintaining the stability and reliability of the connection. The existence of the first support portion 516 not only limits the freedom of movement of the first sleeve 504, but also enhances the connection with the first sleeve 504 and the side wall 512 through its own strength and rigidity. This triple connection (first sleeve 504-first support portion 516-side wall 512) together constitutes a stable connection system, which effectively improves the overall strength of the connection part. The first support portion 516 improves the balance of stress distribution at the connection part. When subjected to external force, the first support portion 516 can disperse and transfer part of the stress to the side wall 512 and other parts of the beam body 508, thereby reducing the burden on the first sleeve 504 and its connection part, and extending the service life of the connection structure.

[0083] In some embodiments of the present application, the connecting member 505 includes a bolt, and a threaded hole is provided in the second connecting hole 506 .

[0084] In the above structure, bolts are widely used as standard fasteners, which have the advantages of being easy to obtain, low cost, and reliable performance. By selecting bolts as the connecting member 505, the manufacturing process is simplified. A threaded hole is provided in the second connecting hole 506, which can match the threaded portion of the bolt to achieve a tight threaded connection. This connection method not only has the characteristics of high strength and high reliability, but also can withstand large tensile and shear forces. At the same time, the threaded connection also has a self-locking function, which can prevent the bolt from loosening to a certain extent.

[0085] like Figure 2 As shown, in some embodiments of the present application, the battery device 2 further includes a box plate and a second sleeve 515. The box plate is connected to the frame 501. The second sleeve 515 is disposed on the second beam 503, and a third connection hole 517 is disposed on the second sleeve 515.

[0086] Optionally, the box plate is used to protect the battery module or other internal components and reduce damage to the battery caused by environmental factors such as external impact, moisture or dust. The box plate is usually made of a strong and corrosion-resistant material, such as metal (such as aluminum alloy, stainless steel) or high-strength plastic, to ensure its structural strength and durability. The box plate can be fixed to the frame 501 by screws, welding or other fastening methods to form a closed or semi-enclosed space to accommodate batteries and other necessary components. Exemplarily, the box plate can be a support plate, bottom guard plate, heat exchange plate, bottom plate or cover plate of the box 5.

[0087] The second sleeve 515 is used to set a connector, which is used to connect the second beam 503 and the box plate, and can enhance the structural stability and connection strength of the battery device 2, ensuring that the battery device 2 can maintain a stable shape under various working conditions. The second sleeve 515 is provided with a third connection hole 517, which cooperates with the corresponding structure (such as a protrusion, a pin, etc.) on the box plate to accurately dock and firmly connect with the box plate.

[0088] In the above structure, by connecting the box plate to the frame 501 and using the second sleeve 515 to tightly connect the second beam 503 to the box plate, the battery device 2 forms a system with strong integrity and stable structure. This design not only improves the safety and reliability of the battery device 2, but also improves its heat dissipation performance and the efficiency of connecting the box plate to the second beam 503. In some embodiments of the present application, the second sleeve 515 and the second beam 503 are an integrally formed structure. There is no additional connecting member 505 (such as screws, welding points, etc.) between the second sleeve 515 and the second beam 503, which improves the connection strength between the second sleeve 515 and the second beam 503. When subjected to force, the entire structure can resist external stress and vibration as a whole, thereby improving the strength and stability of the connection part. The integrally formed structure can also reduce the risk of failure caused by loosening or damage of the connecting member 505, and enhance the overall durability and reliability of the battery device 2. Improve assembly efficiency. Since the second sleeve 515 and the second beam 503 are already an integral whole, there is no need to perform a separate connection step during the assembly process. This simplifies the assembly process, reducing the time and labor costs required.

[0089] In some embodiments of the present application, the second beam body 503 further includes a second support portion 518 , and the second support portion 518 is disposed along the circumference of the second sleeve 515 .

[0090] In some optional embodiments, a first side edge of the second support portion 518 is connected to the outer side wall 512 of the second sleeve 515 , and a second side edge of the second support portion 518 is connected to the bottom plate.

[0091] The second support portion 518 provides an additional support point for the second sleeve 515, so that the second sleeve 515 is not easily displaced or deformed when subjected to external force. The second support portion 518 plays a role in dispersing stress between the second sleeve 515 and the beam body 508 (the second beam body 503). When the box plate is connected to the beam body 508 through the second sleeve 515, certain stress and moment may be generated. The existence of the second support portion 518 can disperse these stresses and moments to a wider area, thereby reducing local stress concentration and protecting the second sleeve 515 and the beam body 508 from damage. By adding the second support portion 518, the connection between the second sleeve 515 and the beam body 508 is strengthened. The second support portion 518 not only provides additional support for the second sleeve 515, but also forms a more stable overall structure through its close connection with the bottom wall 511 and the second sleeve 515. This structural enhancement helps to improve the connection strength between the second sleeve 515 and the beam body 508, ensuring the reliability and durability of the connection.

[0092] In some embodiments of the present application, there are two box plates, the two box plates are arranged opposite to each other along the first direction, and the first beam 502 and the second beam 503 are arranged between the two box plates. The axial direction of the third connecting hole 517 extends along the first direction, and the two box plates are respectively connected to the two ends of the second sleeve 515 through the third connecting hole 517.

[0093] The above technical solution adopts two box plates respectively arranged on opposite sides of the frame 501 to seal the battery storage space, thereby enhancing the overall structural strength of the box 5. The closed space can effectively prevent the entry of external moisture, dust and other impurities, protect the battery cells from environmental influences, thereby extending the service life of the battery device 2 and improving the reliability of the system. The third connection hole 517 runs through the second beam 503, reducing the number of parts required to connect the box plate and the frame 501. In traditional designs, multiple bolts, nuts or other fasteners may be required to achieve connection, while this design not only reduces the manufacturing cost, but also simplifies the assembly process and improves production efficiency through an integrated or simplified connection method. The through-type connection groove enables the box plate to be positioned and fixed on the frame 501 more quickly and accurately, reducing the adjustment time during installation. At the same time, this design also enhances the stability of the connection, so that the box 5 can still maintain the structural integrity when subjected to external forces such as vibration and impact.

[0094] In some embodiments of the present application, the battery device 2 further includes a fastener, and a mounting hole corresponding to the third connection hole 517 is provided on the box plate, and the fastener passes through the mounting hole and the third connection hole 517 to connect the box plate and the second beam 503 .

[0095] Fasteners (such as bolts, nuts, screws, etc.) pass through the mounting holes on the box plate and the third connection holes 517 on the second beam 503 to tightly connect the two together. This connection method can effectively resist external forces such as vibration and impact, and ensure a stable connection between the box plate and the second beam 503. The fastener connection method makes the battery device 2 more flexible during maintenance and upgrading. When it is necessary to replace or upgrade a component, it is only necessary to remove the corresponding fastener to perform the operation.

[0096] In some embodiments of the present application, a threaded hole is provided in the third connecting hole 517, and the fastener includes a connecting bolt.

[0097] When the above structure is assembled using connecting bolts, it is only necessary to pass the bolts through the mounting holes on the box plate and screw them into the threaded holes in the third connecting holes 517, and then tighten them. Compared with other connection methods (such as welding, bonding, etc.), the steps of this method are simpler and faster.

[0098] The embodiment of the present application also provides a box body 5, which includes a frame body 501, a first beam body 502, a second beam body 503, a first sleeve 504 and a connector 505. The frame body 501 has a storage space for accommodating a battery cell. The first beam body 502 is connected to the frame body 501, and a first connection hole 507 is provided on the first beam body 502. The second beam body 503 is connected to the frame body 501, and the extension direction of the second beam body 503 intersects with the extension direction of the first beam body 502. The first sleeve 504 is provided on the second beam body 503, and a second connection hole 506 is provided on the first sleeve 504. The second connection hole 506 is arranged corresponding to the first connection hole 507, and the first sleeve 504 and the second beam body 503 are an integrally formed structure. The connector 505 passes through the first connection hole 507 and the second connection hole 506 to connect the first beam body 502 and the second beam body 503.

[0099] The frame 501 is provided to provide a stable space for the battery cell. The first beam 502 and the second beam 503 are provided to improve the structural stability of the frame 501, and at the same time limit the deformation of the battery cell, thereby improving the stability of the operation of the battery cell and the assembly efficiency. In particular, a second connection hole 506 is provided on the first sleeve 504, and a first connection hole 507 is provided on the first beam 502, so that the connector 505 can connect the first beam 502 and the second beam 503. In particular, the first sleeve 504 and the second beam 503 are integrally formed, which reduces the number of parts, improves the connection strength and connection stability between the connector 505 and the second beam 503, and improves the assembly efficiency of the battery device 2.

[0100] The embodiment of the present application also provides an electric device, which includes the box 5 or the battery device 2 in the above embodiment, and the battery device 2 is used to provide electric energy. The electric device of the present application also has the technical effects in the above embodiment, which will not be described in detail here.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery device, characterized in that: include: A frame body having a receiving space for receiving a battery cell; A first beam body, connected to the frame body, wherein the first beam body is provided with a first connecting hole; A second beam body connected to the frame body, wherein an extension direction of the second beam body intersects with an extension direction of the first beam body; a first sleeve, arranged on the second beam body, the first sleeve being provided with a second connection hole, the second connection hole being arranged corresponding to the first connection hole, and the first sleeve and the second beam body being an integrally formed structure; A connecting member passes through the first connecting hole and the second connecting hole to connect the first beam body and the second beam body.

2. The battery device according to claim 1, characterized in that: The second beam body comprises: The beam body has a buffer cavity; A reinforcing rib is disposed in the buffer cavity, and the first sleeve is connected to the reinforcing rib.

3. The battery device according to claim 2, characterized in that: The reinforcing ribs include a first reinforcing rib and a second reinforcing rib that are arranged to intersect each other.

4. The battery device according to claim 3, characterized in that: The second beam body further includes a first supporting portion, and the first supporting portion is arranged between the outer wall of the first sleeve and the beam body.

5. The battery device according to claim 4, characterized in that: The connecting member includes a bolt, and a threaded hole is provided in the second connecting hole.

6. The battery device according to any one of claims 2 to 5, characterized in that: The battery device further comprises: A box plate connected to the frame; The second sleeve is arranged on the second beam body, and the second sleeve is provided with a third connecting hole.

7. The battery device according to claim 6, characterized in that: The second sleeve and the second beam body are an integrally formed structure.

8. The battery device according to claim 6, characterized in that: The second beam body further includes a second supporting portion, and the second supporting portion is arranged along the circumference of the second sleeve.

9. The battery device according to claim 7 or 8, characterized in that: There are two box plates, which are arranged opposite to each other along a first direction. The first beam and the second beam are arranged between the two box plates. The axial direction of the third connecting hole extends along the first direction. The two box plates are respectively connected to the two ends of the second sleeve through the third connecting hole.

10. The battery device according to claim 7 or 8, characterized in that: The battery device further includes a fastener, the box plate is provided with a mounting hole corresponding to the third connection hole, and the fastener passes through the mounting hole and the third connection hole to connect the box plate and the second beam.

11. The battery device according to claim 10, characterized in that: A threaded hole is provided in the third connecting hole, and the fastener includes a connecting bolt.

12. A box, characterized in that: include: A frame body having a receiving space for receiving a battery cell; A first beam body, connected to the frame body, wherein the first beam body is provided with a first connecting hole; A second beam body connected to the frame body, wherein an extension direction of the second beam body intersects with an extension direction of the first beam body; a first sleeve, disposed in the second beam body, the first sleeve being provided with a second connection hole, the second connection hole being arranged corresponding to the first connection hole, the first sleeve and the second beam body being an integrally formed structure; A connecting member passes through the first connecting hole and the second connecting hole to connect the first beam body and the second beam body.

13. An electrical equipment, characterized in that: The electrical equipment comprises the housing as claimed in claim 12 or the battery device as claimed in any one of claims 1 to 11, and the battery device is used to provide electrical energy.

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