Battery device, battery box body and electric equipment

Abstract

The utility model discloses a battery device, a battery box body and electric equipment, the battery device comprises a battery monomer and the battery box body, the battery box body at least comprises: a box body, which is provided with an accommodating space for accommodating the battery monomer; the reinforcing beam is arranged on one side, opposite to the accommodating space, of the side wall of the box body; and the bearing assembly is arranged on the side, back on to the side wall, of the reinforcing beam and used for connecting the box body and an external component. According to the battery device, the risks of deformation, cracking and the like of the battery box body caused by stress concentration can be reduced, so that the reliability of the battery device can be improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device, battery housing, and electrical equipment. Background Technology

[0002] With the development of battery technology, battery devices are being applied to more and more fields and are gradually replacing traditional petrochemical energy in areas such as automotive power. The battery box not only serves as a carrier for components such as battery cells, but also needs to be designed to be capable of hoisting operations in order to improve the transfer efficiency of the battery device.

[0003] In related technologies, load-bearing holes are typically provided on the flange of the battery box, allowing the battery box to be connected to external components through these holes. For example, lifting holes can be provided on the flange, enabling lifting operations and improving the transport efficiency of the battery device. However, the load-bearing capacity of the battery box is concentrated in the area where the load-bearing holes are located, which can easily cause stress concentration and lead to risks such as deformation and cracking of the battery box. Utility Model Content

[0004] In view of the above problems, this application provides a battery device, a battery housing, and electrical equipment to reduce the risk of deformation and cracking of the battery housing caused by stress concentration, thereby improving the reliability of the battery device.

[0005] In a first aspect, this application provides a battery device, which includes a battery cell and a battery housing. The battery housing includes at least: a housing body having a receiving space for accommodating the battery cell; a reinforcing beam disposed on the side wall of the housing body facing away from the receiving space; and a load-bearing component disposed on the side of the reinforcing beam facing away from the side wall, which is used to connect the housing body and external components. By installing a reinforcing beam on the side wall of the battery box facing away from the containment space, and simultaneously installing a load-bearing component on the side of the reinforcing beam facing away from the side wall, the reinforcement beam improves the structural strength, compression resistance, and impact resistance of the battery box, thereby enhancing its ability to withstand external impacts and compressions and reducing the risk of deformation and cracking. Furthermore, by placing the load-bearing component on the side of the reinforcing beam facing away from the side wall, during the interaction between the battery device and external components, the load-bearing component can distribute the load-bearing force across the entire battery box structure through the reinforcing beam. This reduces the risk of stress concentration in the area where the load-bearing component is located exceeding that in the surrounding areas, effectively weakening stress concentration and further reducing the risk of deformation and cracking of the battery box, thus improving the reliability of the battery device.

[0006] In some embodiments, the sidewall includes a flange portion and a wall portion connecting the flange portion and the bottom wall of the housing body, and a reinforcing beam is at least partially disposed on the side of the flange portion near the bottom wall. By disposing of the reinforcing beam at least partially on the side of the flange portion near the bottom wall, the structural strength and load-bearing capacity of the flange portion can be improved, the risk of flange portion breakage can be reduced, and the original installation structure and installation function of the flange portion will not be affected.

[0007] In some embodiments, the reinforcing beam includes a first protective portion and a second protective portion. The first protective portion is disposed on the side of the wall portion facing away from the receiving space, and the second protective portion is disposed on the side of the flange portion near the bottom wall. By disposing the first protective portion on the side of the wall portion facing away from the receiving space and the second protective portion on the side of the flange portion near the bottom wall, the connection strength between the reinforcing beam and the battery box body can be improved, thereby enhancing the structural strength and protective capability of the battery box. On the other hand, the first protective portion can distribute the load-bearing force to the wall portion, and the second protective portion can distribute the load-bearing force to the flange portion, thereby reasonably dispersing the load-bearing force in the area where the load-bearing components are located, which can reduce stress concentration.

[0008] In some embodiments, the support assembly includes: a first support member disposed on the side of the second protective portion facing away from the flange portion, with a limiting groove formed between the first support member and the second protective portion, and the first support member having a first bearing hole; and a second support member disposed within the limiting groove and connected between the second protective portion and the first support member, the second support member having a second bearing hole, the axial direction of the first bearing hole intersecting the axial direction of the second bearing hole. By making the axial direction of the first bearing hole intersect the axial direction of the second bearing hole, the battery device can be connected to external components not only from different directions but also in different ways, increasing the flexibility of the connection. This allows users to select appropriate connection directions and methods according to specific scenarios and needs, helping to improve connection efficiency and stability, and reducing the risk of the battery device separating from external components during interaction.

[0009] In some embodiments, the first support member includes: a support portion, which is spaced apart from the second protective portion, and the support portion having a first bearing hole; and two connecting portions, which are connected to opposite sides of the support portion and extend toward the second protective portion to form a limiting groove with the support portion and the second protective portion, with one end of the connecting portion away from the support portion fixed to the second protective portion. By connecting the two connecting portions to opposite sides of the support portion and fixing the end of the connecting portion away from the support portion to the second protective portion, the connection strength between the first support member and the reinforcing beam can be improved. At the same time, by providing the first bearing hole in the support portion, the battery device can be connected to external components through the first bearing hole. For example, the battery device can be connected to the hoisting equipment by selecting a top-lifting or bottom-lifting method through the first bearing hole, which can improve the hoisting stability and reduce the risk of the battery device being bumped or damaged during hoisting.

[0010] In some embodiments, the support assembly further includes a sleeve with a third support hole coaxially arranged with the first support hole; the second protective part has a first through hole, and the flange part has a second through hole. One end of the sleeve is located in a limiting groove, and the other end of the sleeve passes through the first and second through holes and extends to the side of the flange part away from the second protective part. By providing a sleeve on the second support member, with the sleeve passing through the first through hole of the second protective part and the second through hole of the flange part, and the third support hole in the sleeve being coaxially arranged with the first support hole of the first support member, on the one hand, the first and second through holes can limit the sleeve, allowing the sleeve to be stably fixed in the first and second through holes, eliminating the need for welding, bolting, or other operations on the sleeve. This not only improves the stability of the sleeve but also reduces the assembly steps of the support assembly, thereby increasing assembly efficiency. On the other hand, the other end of the sleeve extends to the side of the flange part away from the second protective part, allowing it to abut against external components to reduce friction between the external components and the flange part, thus reducing damage to the housing body.

[0011] In some embodiments, the sidewall includes a flange and a wall portion connecting the flange and the bottom wall of the housing body. The reinforcing beam includes a third protective portion and a fourth protective portion. The third protective portion is located on the side of the wall portion facing away from the receiving space, and the fourth protective portion is connected to the side of the third protective portion away from the flange. The fourth protective portion is parallel to and spaced apart from the flange. A load-bearing component is located on the side of the fourth protective portion facing the flange. By placing the load-bearing component on the side of the fourth protective portion facing the flange, the fourth protective portion supports the load-bearing component, improving its structural strength. During the interaction between the battery device and external components, the fourth protective portion can also evenly distribute the load-bearing force to the reinforcing beam and the housing body, effectively reducing stress concentration and further reducing the risk of deformation and cracking of the battery housing, thus improving the reliability of the battery device.

[0012] In some embodiments, the support assembly includes a support base with a fourth support hole and a fourth protective portion with a third through hole, the fourth support hole and the third through hole being coaxially arranged; wherein the orthographic projection of the flange portion toward the fourth protective portion does not overlap with the fourth support hole. By ensuring that the orthographic projection of the flange portion toward the fourth protective portion does not overlap with the fourth support hole, the flange portion does not obstruct the fourth support hole and the third through hole, facilitating the connection of the fixing component with the fourth support hole and the third through hole to achieve the connection between the battery device and external components. The support base not only has a simple structure and can reduce the overall weight of the battery device, thereby reducing the impact of the battery device's weight on the energy consumption and range of the electrical equipment, but also can evenly distribute the load-bearing force to the reinforcing beam and the box body, thereby effectively reducing stress concentration and further reducing the risk of deformation and cracking of the battery box, thus improving the reliability of the battery device.

[0013] In some embodiments, the sidewall includes a flange and a wall portion connecting the flange and the bottom wall of the housing body. A reinforcing beam is at least partially disposed on the side of the wall portion facing away from the receiving space. The load-bearing component includes a hook, disposed on the side of the reinforcing beam facing away from the housing body, for connecting the housing body and external components. By disposing of at least a portion of the reinforcing beam on the side of the wall portion facing away from the receiving space and disposing of the hook on the side of the reinforcing beam facing away from the housing body, the flange can cover at least a portion of the hook, improving the space utilization of the flange portion facing the reinforcing beam. This allows for more compact placement or stacking of the battery device during transportation or storage, improving the space utilization of the placement space. Furthermore, the hook allows for easier and faster connection between the battery housing and external components, contributing to improved connection efficiency between the battery housing and external components.

[0014] In some embodiments, a mounting post is provided on the side of the flange facing away from the second protective part. The flange has a first mounting hole extending into the mounting post. The second protective part has a second mounting hole that mates with the first mounting hole. The first and second mounting holes are used to mate with a first mounting component to fix the reinforcing beam to the housing body. By providing a mounting post on the side of the flange facing away from the second protective part, and extending the first mounting hole of the flange into the mounting post, the reinforcing beam can be fixed to the flange simply by placing the first mounting component in the first and second mounting holes. This not only saves on the types and number of parts, but also reduces the assembly difficulty and saves time during the assembly of the battery housing, thus improving assembly efficiency.

[0015] In some embodiments, the box body includes an injection-molded box body, and the reinforcing beam includes a metal reinforcing beam. By providing a metal reinforcing beam on the side of the injection-molded box body facing away from the accommodating space, the structural strength, compression resistance, and impact resistance of the injection-molded box body can be improved, thereby enhancing the injection-molded box body's ability to resist external impacts and compressions, and reducing the risk of deformation, cracking, and other issues.

[0016] In some embodiments, the box body includes two first sidewalls disposed opposite to each other in a first direction and two second sidewalls disposed opposite to each other in a second direction. The dimension of the first sidewalls along the second direction is greater than the dimension of the second sidewalls along the first direction, and the first direction is perpendicular to the second direction. A reinforcing beam is disposed on the two first sidewalls, and one end of the reinforcing beam extends to one of the two second sidewalls, and the other end of the reinforcing beam extends to the other of the two second sidewalls. By placing the reinforcing beam on the two first sidewalls, with one end extending to one of the two second sidewalls and the other end extending to the other, the reinforcing beam covers a larger area of ​​the battery box body compared to placing it on the two second sidewalls. This provides broader protection for the battery box body and allows the reinforcing beam to better distribute the load-bearing force on the battery box, thus significantly improving the structural strength of the battery box and reducing the risk of deformation and cracking. Furthermore, by having both ends of the reinforcing beam cover the connection area between the first and second sidewalls, the structural strength of the connection area is enhanced, and stress distribution is optimized, further improving the reliability of the battery device.

[0017] Secondly, this application provides a battery housing, which includes at least: a housing body forming a receiving space for accommodating individual battery cells; a reinforcing beam disposed on the side wall of the housing body facing away from the receiving space; and a load-bearing component disposed on the side of the reinforcing beam facing away from the side wall, the load-bearing component being used to connect the housing body and external components. By providing a reinforcing beam on the side wall of the housing body facing away from the receiving space, and simultaneously providing a load-bearing component for connecting the housing body and external components on the side of the reinforcing beam facing away from the side wall, on the one hand, the reinforcing beam can improve the structural strength, compression resistance, and impact resistance of the battery housing, thereby enhancing the battery housing's ability to resist external impacts and compressions, and reducing the risk of deformation and cracking of the battery housing; on the other hand, by distributing the load-bearing component on the side of the reinforcing beam facing away from the side wall, during the interaction between the battery device and external components, the load-bearing component can distribute the load-bearing force to the entire structure of the battery housing through the reinforcing beam, reducing the risk that the stress in the area where the load-bearing component is located is greater than that in the surrounding area, thereby effectively reducing stress concentration, further reducing the risk of deformation and cracking of the battery housing, and improving the reliability of the battery device.

[0018] In some embodiments, the sidewall includes a flange portion and a wall portion connecting the flange portion and the bottom wall of the housing body, and a reinforcing beam is at least partially disposed on the side of the flange portion near the bottom wall. By disposing of the reinforcing beam at least partially on the side of the flange portion near the bottom wall, the structural strength and load-bearing capacity of the flange portion can be improved, the risk of flange portion breakage can be reduced, and the original installation structure and installation function of the flange portion will not be affected.

[0019] In some embodiments, the reinforcing beam includes a first protective portion and a second protective portion. The first protective portion is disposed on the side of the wall portion facing away from the receiving space, and the second protective portion is disposed on the side of the flange portion near the bottom wall. By disposing the first protective portion on the side of the wall portion facing away from the receiving space and the second protective portion on the side of the flange portion near the bottom wall, the connection strength between the reinforcing beam and the battery box body can be improved, thereby enhancing the structural strength and protective capability of the battery box. On the other hand, the first protective portion can distribute the load-bearing force to the wall portion, and the second protective portion can distribute the load-bearing force to the flange portion, thereby reasonably dispersing the load-bearing force in the area where the load-bearing components are located, which can reduce stress concentration.

[0020] In some embodiments, the support assembly includes: a first support member disposed on the side of the second protective portion facing away from the flange portion, with a limiting groove formed between the first support member and the second protective portion, and the first support member having a first bearing hole; and a second support member disposed within the limiting groove and connected between the second protective portion and the first support member, the second support member having a second bearing hole, the axial direction of the first bearing hole intersecting the axial direction of the second bearing hole. By making the axial direction of the first bearing hole intersect the axial direction of the second bearing hole, the battery device can be connected to external components not only from different directions but also in different ways, increasing the flexibility of the connection. This allows users to select appropriate connection directions and methods according to specific scenarios and needs, helping to improve connection efficiency and stability, and reducing the risk of the battery device separating from external components during interaction.

[0021] In some embodiments, the first support member includes: a support portion, which is disposed opposite to and spaced apart from the second protective portion, and the support portion is provided with a first bearing hole; and two connecting portions, which are connected opposite to both sides of the support portion and extend toward the second protective portion to form a limiting groove with the support portion and the second protective portion, and the end of the connecting portion away from the support portion is fixed to the second protective portion. By connecting the two connecting portions opposite to both sides of the support portion and fixing the end of the connecting portion away from the support portion to the second protective portion, the connection strength between the first support member and the reinforcing beam can be improved. At the same time, the first bearing hole is provided in the support portion, so that the battery device can be connected to external components through the first bearing hole. For example, the battery device can be connected to the hoisting equipment by selecting a top hoist or bottom hoisting method through the first bearing hole, which can improve the hoisting stability and reduce the risk of the battery device being bumped or dropped during the hoisting process.

[0022] In some embodiments, the support assembly further includes a sleeve with a third support hole coaxially arranged with the first support hole; the second protective part has a first through hole, and the flange part has a second through hole. One end of the sleeve is located in a limiting groove, and the other end of the sleeve passes through the first and second through holes and extends to the side of the flange part away from the second protective part. By providing a sleeve on the second support member, with the sleeve passing through the first through hole of the second protective part and the second through hole of the flange part, and the third support hole in the sleeve being coaxially arranged with the first support hole of the first support member, on the one hand, the first and second through holes can limit the sleeve, allowing the sleeve to be stably fixed in the first and second through holes, eliminating the need for welding, bolting, or other operations on the sleeve. This not only improves the stability of the sleeve but also reduces the assembly steps of the support assembly, thereby increasing assembly efficiency. On the other hand, the other end of the sleeve extends to the side of the flange part away from the second protective part, allowing it to abut against external components to reduce friction between the external components and the flange part, thus reducing damage to the housing body.

[0023] Thirdly, this application provides an electrical device, which includes the battery device in any of the above embodiments, or the battery housing in any of the above embodiments. By providing a reinforcing beam on the side wall of the housing body facing away from the receiving space, and simultaneously providing a load-bearing component for connecting the housing body and external components on the side of the reinforcing beam facing away from the side wall, on the one hand, the setting of the reinforcing beam can improve the structural strength, compression resistance, and impact resistance of the battery housing, thereby enhancing the battery housing's ability to resist external impacts and compressions and reducing the risk of deformation and cracking of the battery housing; on the other hand, by setting the load-bearing component on the side of the reinforcing beam facing away from the side wall, during the interaction between the battery device and external components, the load-bearing component can distribute the load-bearing force to the entire structure of the battery housing through the reinforcing beam, reducing the risk that the stress in the area where the load-bearing component is located is greater than that in the surrounding area, thereby effectively weakening stress concentration, further reducing the risk of deformation and cracking of the battery housing, and improving the reliability of the battery device. Attached Figure Description

[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0025] In the picture:

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of the electrical equipment provided in this application;

[0027] Figure 2 This is a structural schematic diagram of the first embodiment of the battery housing provided in this application;

[0028] Figure 3 yes Figure 2 Enlarged view of part A in the image;

[0029] Figure 4 This is an exploded structural diagram of the first embodiment of the battery housing provided in this application;

[0030] Figure 5 yes Figure 4 Enlarged view of part B in the image;

[0031] Figure 6 This is an exploded structural diagram of the second embodiment of the battery housing provided in this application;

[0032] Figure 7 yes Figure 6 Enlarged view of section C in the image;

[0033] Figure 8This is a structural schematic diagram of the third embodiment of the battery housing provided in this application;

[0034] Figure 9 yes Figure 8 Enlarged view of part D in the image;

[0035] Figure 10 This is a structural schematic diagram of the fourth embodiment of the battery housing provided in this application;

[0036] Figure 11 yes Figure 10 Enlarged view of part E in the image.

[0037] The reference numerals in the detailed embodiments are as follows:

[0038] Vehicle 1000a, battery unit 100a, controller 200a, motor 300a, battery box 10, box body 11, accommodating space 11a, side wall 111, flange 1111, second through hole 1111a, third mounting hole 1111b, wall 1112, first side wall 114, second side wall 115, bottom wall 112, mounting post 113, first mounting hole 113a, reinforcing beam 12, first protective part 121, second protective part 122, first through hole 122a, second mounting hole 122b, fourth mounting hole 122c, third protective part 123, fourth protective part Part 124, fifth protective part 125, bearing assembly 13, first support member 131, first bearing hole 131a, limiting groove 131b, support part 1311, connecting part 1312, first fixing part 1313, second support member 132, second bearing hole 132a, sleeve 1321, third bearing hole 1321a, first bearing part 1322, second bearing part 1323, bearing seat 133, fourth bearing hole 133a, hook member 134, fifth bearing hole 134a, second fixing part 1341, hook rod part 1342, hook head 1343, first mounting component 14. Detailed Implementation

[0039] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0041] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0042] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0043] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0044] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0045] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate heat exchange medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0046] With the development of battery technology, battery devices are being applied in more and more fields, gradually replacing traditional fossil fuels in areas such as automotive power. For large battery devices, due to their size and weight, manual handling is not only difficult but also carries risks of bumps and drops. Therefore, during the production, transportation, installation, and maintenance of battery devices, hoisting equipment is typically used to transfer them, improving transportation efficiency and reducing the risks of bumps and drops.

[0047] The battery housing not only serves as a carrier for individual battery cells and other components, but also needs to be designed to be capable of hoisting operations in order to improve the transport efficiency of the battery device.

[0048] In related technologies, load-bearing holes are typically provided on the flange of the battery box, allowing the battery box to be connected to external components through these holes. For example, lifting holes can be provided on the flange, enabling lifting operations and improving the transport efficiency of the battery device. However, the load-bearing capacity of the battery box is concentrated in the area where the load-bearing holes are located, which can easily cause stress concentration and lead to risks such as deformation and cracking of the battery box.

[0049] Based on the above considerations, this application provides a battery device, a battery housing, and an electrical device. The battery device includes individual battery cells and a battery housing. The battery housing includes at least a housing body, a reinforcing beam, and a load-bearing component. The housing body forms a receiving space for accommodating the individual battery cells. The reinforcing beam is disposed on the side wall of the housing body facing away from the receiving space. The load-bearing component is disposed on the side of the reinforcing beam facing away from the side wall and is used to connect the housing body and external components. By installing a reinforcing beam on the side wall of the battery box facing away from the containment space, and simultaneously installing a load-bearing component on the side of the reinforcing beam facing away from the side wall, the reinforcement beam improves the structural strength, compression resistance, and impact resistance of the battery box, thereby enhancing its ability to withstand external impacts and compressions and reducing the risk of deformation and cracking. Furthermore, by placing the load-bearing component on the side of the reinforcing beam facing away from the side wall, during the interaction between the battery device and external components, the load-bearing component can distribute the load-bearing force across the entire battery box structure through the reinforcing beam. This reduces the risk of stress concentration in the area where the load-bearing component is located exceeding that in the surrounding areas, effectively weakening stress concentration and further reducing the risk of deformation and cracking of the battery box, thus improving the reliability of the battery device.

[0050] The battery device, battery housing, and electrical equipment disclosed in this application can be used in electrical equipment that uses the battery device as a power source or in various energy storage systems that use the battery device as an energy storage element. The electrical equipment can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0051] For ease of explanation, the following embodiments will be described using a vehicle 1000a as an example of an electrical device according to an embodiment of this application.

[0052] Please refer to Figure 1 The vehicle 1000a can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. A battery device 100a is installed inside the vehicle 1000a, and the battery device 100a can be located at the bottom of the vehicle 1000a. The battery device 100a can be used to power the vehicle 1000a; for example, the battery device 100a can serve as the operating power source for the vehicle 1000a. The vehicle 1000a may also include a controller 200a and a motor 300a. The controller 200a is used to control the battery device 100a to supply power to the motor 300a, for example, to meet the power needs of the vehicle 1000a during starting, navigation, and driving.

[0053] In some embodiments of this application, the battery device 100a can not only serve as the operating power source for the vehicle 1000a, but also as the driving power source for the vehicle 1000a, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000a.

[0054] In some embodiments, the battery device 100a may be an energy storage device. Energy storage devices include energy storage containers, energy storage cabinets, etc.

[0055] The battery device 100a mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells, which are connected in series, parallel, or mixed connections via a busbar.

[0056] In this embodiment of the application, 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.

[0057] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0058] A single battery cell includes an electrode assembly. The electrode assembly is mainly formed by winding or stacking a positive electrode, a negative electrode, and a separator, with the separator positioned between the positive and negative electrode. The portions of the positive and negative electrode containing active material constitute the main body of the electrode assembly; the portions of the positive electrode without active material constitute the positive electrode tab; and the portions of the negative electrode without active material constitute the negative electrode tab. During the charging and discharging process of the battery device 100a, the positive and negative active materials react with the electrolyte to form a current circuit.

[0059] In some embodiments, please refer to Figures 2 to 5 The battery device 100a includes a battery cell and a battery housing 10 having a receiving space 11a for accommodating the battery cell.

[0060] In some embodiments, the battery housing 10 may be part of the chassis structure of the vehicle 1000a. For example, a portion of the battery housing 10 may be at least a part of the chassis of the vehicle 1000a, or a portion of the battery housing 10 may be at least a part of the crossbeams and longitudinal beams of the vehicle 1000a.

[0061] In some embodiments, at least a portion of the battery housing 10 may be disposed on the chassis structure of the vehicle 1000a.

[0062] In some embodiments, please continue to refer to Figures 4 to 5 The battery device 100a includes a battery cell and a battery housing 10. The battery housing 10 includes at least a housing body 11, a reinforcing beam 12, and a load-bearing component 13. The housing body 11 forms an accommodating space 11a for accommodating the battery cell. The reinforcing beam 12 is disposed on the side wall 111 of the housing body 11 facing away from the accommodating space 11a. The load-bearing component 13 is disposed on the side wall 111 of the reinforcing beam 12 facing away from the side wall 111 and is used to connect the housing body 11 and external components.

[0063] The connection between the reinforcing beam 12 and the housing body 11 is reliable. As a reinforcing structure of the housing body 11, the reinforcing beam 12 can improve the structural strength, compression resistance, and impact resistance of the housing body 11. By setting the reinforcing beam 12 on the side wall 111 of the housing body 11, the thickness of the side wall 111 of the housing body 11 can be reduced while enhancing the structural strength of the housing body 11, thereby improving the space utilization of the housing body 11 and enabling the energy density of the battery device 100a to be increased without increasing the volume of the battery housing 10.

[0064] The housing body 11 is connected to external components via a load-bearing assembly 13. These external components can be electrical equipment such as vehicles 1000a, ships, aircraft, or rockets, or hoisting equipment used to transport the battery device 100a. The load-bearing assembly 13 serves as a mounting point, engaging with fixed components to secure the battery device 100a to the electrical equipment. By using the load-bearing assembly 13, the use of other components is reduced, not only simplifying installation and saving time, thus improving efficiency, but also reducing the overall weight of the battery device 100a and minimizing its impact on the energy consumption and range of the electrical equipment. The load-bearing assembly 13 can also serve as a hoisting point, connecting to hoisting equipment to facilitate hoisting operations on the battery device 100a, improving transport efficiency and reducing the risk of impacts or damage.

[0065] In some embodiments, the reinforcing beam 12 can be an integrally formed structure, which can improve the overall structural strength and rigidity of the reinforcing beam 12, enabling the reinforcing beam 12 to provide better protection for the housing body 11, thereby improving the reliability of the battery device 100a. The forming methods of the reinforcing beam 12 include, but are not limited to, cold stamping, hot stamping, roll forming, or extrusion forming.

[0066] In this embodiment, a reinforcing beam 12 is provided on the side wall 111 of the battery box 11 facing away from the receiving space 11a. Simultaneously, a load-bearing assembly 13 for connecting the battery box 11 and external components is provided on the side of the reinforcing beam 12 facing away from the side wall 111. On one hand, the reinforcing beam 12 improves the structural strength, compression resistance, and impact resistance of the battery box 10, thereby enhancing its ability to withstand external impacts and compressions and reducing the risk of deformation and cracking. On the other hand, by placing the load-bearing assembly 13 on the side of the reinforcing beam 12 facing away from the side wall 111, during the interaction between the battery device 100a and external components, the load-bearing assembly 13 can distribute the load-bearing force to the entire structure of the battery box 10 through the reinforcing beam 12. This reduces the risk of stress concentration in the area where the load-bearing assembly 13 is located being greater than in the surrounding area, effectively weakening stress concentration and further reducing the risk of deformation and cracking of the battery box 10, thus improving the reliability of the battery device 100a.

[0067] In some embodiments, please continue to refer to Figures 2 to 5 The side wall 111 includes a flange portion 1111 and a wall portion 1112 connected between the flange portion 1111 and the bottom wall 112 of the box body 11. The reinforcing beam 12 is at least partially disposed on the side of the flange portion 1111 near the bottom wall 112.

[0068] The wall portion 1112 is disposed around the periphery of the bottom wall 112 to form a receiving space 11a. The flange portion 1111 is disposed around the periphery of the end of the wall portion 1112 opposite to the bottom wall 112 and extends in a direction away from the receiving space 11a.

[0069] By placing at least a portion of the reinforcing beam 12 on the side of the flange portion 1111 near the bottom wall 112, the structural strength and load-bearing capacity of the flange portion 1111 can be improved, the risk of the flange portion 1111 breaking can be reduced, and the original installation structure and installation function of the flange portion 1111 will not be affected.

[0070] In some embodiments, the housing body 11 can serve as the lower housing of the battery device, and its flange 1111 is used to connect to the cover of the battery housing 10.

[0071] In some embodiments, please continue to refer to Figures 2 to 5 The reinforcing beam 12 includes a first protective part 121 and a second protective part 122. The first protective part 121 is disposed on the side of the wall 1112 facing away from the receiving space 11a, and the second protective part 122 is disposed on the side of the flange 1111 near the bottom wall 112.

[0072] The first protective part 121 and the second protective part 122 can be integrally formed by cold stamping, hot stamping, roll forming, extrusion forming, etc. The connection between the first protective part 121 and the second protective part 122 is reliable and the structure is simple, which can not only improve the structural strength and rigidity of the reinforcing beam 12, but also reduce the overall weight of the reinforcing beam 12.

[0073] In some embodiments, the surface of the first protective portion 121 facing the wall portion 1112 is a flat surface, and the first protective portion 121 can be fitted to the side of the wall portion 1112 facing away from the receiving space 11a. The surface of the second protective portion 122 facing the flange portion 1111 is also a flat surface, and the second protective portion 122 can be fitted to the side of the flange portion 1111 near the bottom wall 112.

[0074] By placing the first protective part 121 on the side of the wall 1112 facing away from the receiving space 11a, and placing the second protective part 122 on the side of the flange 1111 near the bottom wall 112, the connection strength between the reinforcing beam 12 and the box body 11 can be improved, thereby enhancing the structural strength and protective capability of the battery box 10. On the other hand, the first protective part 121 can distribute the load-bearing force to the wall 1112, and the second protective part 122 can distribute the load-bearing force to the flange 1111, thereby reasonably dispersing the load-bearing force in the area where the load-bearing component 13 is located, which can reduce stress concentration.

[0075] In some embodiments, please continue to refer to Figure 3 and Figure 5 The bearing assembly 13 includes a first support member 131 and a second support member 132. The first support member 131 is disposed on the side of the second protective part 122 facing away from the flange part 1111, and a limiting groove 131b is formed between the first support member 131 and the second protective part 122. The first support member 131 is provided with a first bearing hole 131a. The second support member 132 is disposed in the limiting groove 131b and is connected between the second protective part 122 and the first support member 131. The second support member 132 is provided with a second bearing hole 132a, and the axial direction of the first bearing hole 131a intersects with the axial direction of the second bearing hole 132a.

[0076] In some embodiments, the first support member 131 and the second support member 132 are integrally formed, resulting in a simple structure. By simply placing the first support member 131 on the first protective part 121 and the second support member 132 on the second protective part 122, the first support member 131, the second support member 132, and the reinforcing beam 12 can be integrated into a single unit. This not only simplifies the types and number of parts but also reduces assembly difficulty and saves time during the assembly of the battery box 10, thus improving assembly efficiency. The first support member 131 can be placed on the first protective part 121, and the second support member 132 can be placed on the second protective part 122, but these methods are not limited to welding, riveting, bolting, or adhesive bonding.

[0077] In some embodiments, the first support member 131 and the second support member 132 can be two different components. A gap exists between the first support member 131 and the second support member 132. The first support member 131 and the second support member 132 can be connected by welding, adhesive bonding, or other methods, but are not limited to these. When the first support member 131 and the second support member 132 are connected by welding, the gap between them facilitates the formation of a molten pool during welding, allowing solder to penetrate through the gap to the contact surface of the first support member 131 and the second support member 132, thereby improving the welding strength. Simultaneously, the gap can alleviate stress concentration during welding, reduce residual stress after welding, and decrease the risk of cracking or deformation in the connection area of ​​the first support member 131 and the second support member 132 due to excessive stress. When the first support member 131 and the second support member 132 are connected by adhesive bonding, the adhesive can be filled in the gap. The adhesive can evenly distribute the stress on the first support member 131 and the second support member 132, which can reduce the risk of stress concentration and improve the connection strength between the first support member 131 and the second support member 132.

[0078] When the first support member 131 is disposed on the side of the reinforcing beam 12 facing away from the box body 11, the first support member 131 and the reinforcing beam 12 together form a limiting groove 131b. By disposing the second support member 132 in the limiting groove 131b and connecting it between the second protective part 122 and the first support member 131, the first support member 131 and the reinforcing beam 12 can not only limit the second support member 132 and reduce the risk of displacement of the second support member 132, but also improve the structural strength of the second support member 132 and reduce the risk of deformation or breakage of the second support member 132.

[0079] In some embodiments, the axial direction of the first bearing hole 131a of the first support member 131 may be perpendicular to the axial direction of the second bearing hole 132a of the second support member 132; of course, the axial direction of the first bearing hole 131a of the first support member 131 and the axial direction of the second bearing hole 132a of the second support member 132 may not be perpendicular, as long as the axial direction of the first bearing hole 131a of the first support member 131 and the axial direction of the second bearing hole 132a of the second support member 132 are intersecting.

[0080] In some embodiments, when the battery device 100a is fixed to the electrical equipment by the support component 13, it can be installed in different directions and in different ways through the first support hole 131a and the second support hole 132a, which increases the installation flexibility and can improve the installation efficiency of the battery device 100a.

[0081] In some embodiments, when the battery device 100a is connected to the hoisting equipment via the support component 13, the battery device 100a can be connected to the hoisting equipment from different directions and in different ways through the first support hole 131a and the second support hole 132a.

[0082] By aligning the axial direction of the first bearing hole 131a with the axial direction of the second bearing hole 132a, the battery device 100a can connect to external components not only from different directions but also in different ways, increasing the flexibility of the connection. This allows users to choose the appropriate connection direction and method according to specific scenarios and needs, which helps improve connection efficiency and stability and reduces the risk of the battery device 100a separating from the external components during interaction.

[0083] In some embodiments, please continue to refer to Figure 3 and Figure 5The first support member 131 includes a support portion 1311 and two connecting portions 1312. The support portion 1311 is disposed opposite to the second protective portion 122. The support portion 1311 is provided with a first bearing hole 131a. The two connecting portions 1312 are connected to the two sides of the support portion 1311 and extend toward the second protective portion 122 to form a limiting groove 131b with the support portion 1311 and the second protective portion 122. One end of the connecting portion 1312 away from the support portion 1311 is fixed to the second protective portion 122.

[0084] The first bearing hole 131a is a through hole, which penetrates the support portion 1311 on both the side facing the second protective portion 122 and the side facing away from the second protective portion 122. The axial direction of the first bearing hole 131a can be parallel to the arrangement direction of the support portion 1311 and the second protective portion 122.

[0085] The connection between the support part 1311 and the connecting part 1312, as well as the connection between the connecting part 1312 and the first fixing part 1313, are all smoothly transitioned. This not only improves the structural stability and durability of the first support member 131 and reduces damage caused by stress concentration, but also makes the corners of the first support member 131 smooth, making it more beautiful and elegant, and increasing the aesthetic appeal of the design.

[0086] In some embodiments, the first support member 131 further includes two first fixing parts 1313, one of which is connected to a connecting part 1312 away from one end of the support part 1311, and the other is connected to another connecting part 1312 away from one end of the support part 1311. The first fixing parts 1313 are used to fix the second protective part 122 to the side away from the flange part 1111.

[0087] In some embodiments, the fixing method of the first fixing part 1313 to the side of the second protective part 122 facing away from the flange part 1111 can be welding, riveting, adhesive bonding or bolt connection, but is not limited to these.

[0088] In some embodiments, the side of the support portion 1311 facing the first protective portion 121, the side of the connecting portion 1312 facing the first protective portion 121, and the side of the first fixing portion 1313 facing the first protective portion 121 can be connected to the first protective portion 121 to improve the connection strength between the first support member 131 and the reinforcing beam 12.

[0089] By connecting two connecting parts 1312 to the two sides of the support part 1311, and fixing one end of the connecting part 1312 away from the support part 1311 to the second protective part 122, the connection strength between the first support member 131 and the reinforcing beam 12 can be improved. At the same time, the first bearing hole 131a is provided in the support part 1311, so that the battery device 100a can be connected to the external components through the first bearing hole 131a. For example, the battery device 100a can be connected to the hoisting equipment through the first bearing hole 131a by selecting the top hoisting or bottom hoisting method, which can improve the hoisting stability and reduce the risk of the battery device 100a being bumped or dropped during the hoisting process.

[0090] In some embodiments, please refer to Figures 6 to 7 The bearing assembly 13 also includes a sleeve 1321, which has a third bearing hole 1321a coaxially arranged with the first bearing hole 131a; the second protective part 122 has a first through hole 122a, and the flange part 1111 has a second through hole 1111a. One end of the sleeve 1321 is located in the limiting groove 131b, and the other end of the sleeve 1321 passes through the first through hole 122a and the second through hole 1111a, and extends to the side of the flange part 1111 away from the second protective part 122.

[0091] The first through hole 122a of the second protective part 122 can be coaxially arranged with the second through hole 1111a of the flange part 1111, so that the sleeve 1321 can pass through the first through hole 122a and the second through hole 1111a. The end of the sleeve 1321 away from the second support member 132 can protrude from the surface of the flange part 1111 away from the reinforcing beam 12. The third bearing hole 1321a in the sleeve 1321 is connected to and coaxially arranged with the first bearing hole 131a of the first support member 131.

[0092] In some embodiments, the support component 13 includes a sleeve 1321. Of course, the support component 13 may also include multiple sleeves 1321. The number of sleeves 1321 on the second support member 132 may be 2, 3, 5, 7, etc., but is not limited thereto. The number of the first support hole 131a, the first through hole 122a and the second through hole 1111a are all matched with the number of sleeves 1321.

[0093] In some embodiments, as Figure 5As shown, the second support member 132 includes a first support portion 1322 and a second support portion 1323. The first support portion 1322 is disposed on the side of the support portion 1311 away from the first protective portion 121 and connects the support portion 1311 and the second protective portion 122. The second support portion 1323 is connected to the side of the first support portion 1322 near the second protective portion 122 and extends toward the first protective member. A sleeve 1321 is disposed on the side of the second support portion 1323 facing the second protective portion 122. The side of the second support portion 1323 facing the second protective portion 122 can abut against the second protective portion 122. The plane of the first support portion 1322 can be perpendicular to the plane of the support portion 1311. The plane of the second support portion 1323 can be parallel to the plane of the support portion 1311.

[0094] In some embodiments, as Figure 7 As shown, sleeve 1321 is disposed on the side of the second support member 132 facing the first protective part 121, and one end of sleeve 1321 abuts against the support part 1311, while the other end of sleeve 1321 passes through the first through hole 122a and the second through hole 1111a, and extends to the side of flange part 1111 away from the second protective part 122. The third bearing hole 1321a in sleeve 1321 corresponds to the first bearing hole 131a of the first support member 131.

[0095] By providing a sleeve 1321 on the second support member 132, the sleeve 1321 passes through the first through hole 122a of the second protective part 122 and the second through hole 1111a of the flange part 1111. The third bearing hole 1321a inside the sleeve 1321 is coaxially arranged with the first bearing hole 131a of the first support member 131. On the one hand, the first through hole 122a and the second through hole 1111a can limit the sleeve 1321, so that the sleeve 1321 can be stably fixed in the first through hole 122a. Within 2a and the second through hole 1111a, there is no need to perform welding, bolting, or other operations on the sleeve 1321. This not only improves the stability of the sleeve 1321 but also reduces the assembly steps of the component 13, thereby increasing assembly efficiency. On the other hand, the other end of the sleeve 1321 extends to the side of the flange 1111 away from the second protective part 122, and can abut against the external component to reduce friction between the external component and the flange 1111, thereby reducing damage to the box body 11.

[0096] In some embodiments, please refer to Figures 8 to 9The side wall 111 includes a flange portion 1111 and a wall portion 1112 connected between the flange portion 1111 and the bottom wall 112 of the box body 11. The reinforcing beam 12 includes a third protective portion 123 and a fourth protective portion 124. The third protective portion 123 is disposed on the side of the wall portion 1112 facing away from the receiving space 11a. The fourth protective portion 124 is connected to the side of the third protective portion 123 away from the flange portion 1111. The fourth protective portion 124 is parallel to and spaced apart from the flange portion 1111. The bearing assembly 13 is disposed on the side of the fourth protective portion 124 facing the flange portion 1111.

[0097] The third protective part 123 and the fourth protective part 124 can be integrally formed by cold stamping, hot stamping, roll forming, extrusion forming, etc. The connection between the third protective part 123 and the fourth protective part 124 is reliable and the structure is simple, which can not only improve the structural strength and rigidity of the reinforcing beam 12, but also reduce the overall weight of the reinforcing beam 12.

[0098] In some embodiments, the surface of the third protective portion 123 facing the wall portion 1112 is a flat surface, and the third protective portion 123 can be fitted to the side of the wall portion 1112 facing away from the receiving space 11a. The bearing assembly 13 can be integrally formed with the reinforcing beam 12. The integrally formed structure not only improves the connection strength between the bearing assembly 13 and the reinforcing beam 12, but also simplifies the types and number of parts, thereby improving assembly efficiency. The bearing assembly 13 and the reinforcing beam 12 can also be two different components. The bearing assembly 13 can be disposed on the side of the fourth protective portion 124 facing the flange portion 1111 by riveting, welding, bonding, bolting, keying, or snap-fit ​​connection. The way the bearing assembly 13 is disposed on the fourth protective portion 124 is not limited to the above methods.

[0099] In some embodiments, the reinforcing beam 12 further includes a fifth protective portion 125, which is connected to the side of the third protective portion 123 near the flange portion 1111 and is connected to the flange portion 1111.

[0100] By placing the load-bearing component 13 on the side of the fourth protective part 124 facing the flange part 1111, the fourth protective part 124 provides support for the load-bearing component 13, thereby improving the structural strength of the load-bearing component 13. At the same time, during the interaction between the battery device 100a and external components, the fourth protective part 124 can also evenly distribute the load-bearing force to the reinforcing beam 12 and the box body 11, thereby effectively reducing stress concentration and further reducing the risk of deformation and cracking of the battery box 10, thus improving the reliability of the battery device 100a.

[0101] In some embodiments, please continue to refer to Figures 8 to 9The support component 13 includes a support base 133, the support base 133 is provided with a fourth support hole 133a, the fourth protective part 124 is provided with a third through hole, the fourth support hole 133a and the third through hole (not shown) are coaxially arranged, wherein the orthographic projection of the flange part 1111 toward the fourth protective part 124 does not overlap with the fourth support hole 133a.

[0102] The fourth protective portion 124 extends in a direction away from the third protective portion 123, and its extension dimension is greater than that of the flange portion 1111 extending in a direction away from the wall portion 1112. In the extension direction of the fourth protective portion 124 away from the third protective portion 123, the orthographic projection of the fourth protective portion 124 toward the flange portion 1111 does not at least partially overlap with the flange portion 1111, such that the orthographic projection of the flange portion 1111 toward the fourth protective portion 124 does not cover at least a portion of the support seat 133 disposed on the fourth protective portion 124. The fourth support hole 133a is disposed in the area of ​​the support seat 133 not covered by the orthographic projection of the flange portion 1111 toward the fourth protective portion 124, such that the orthographic projection of the flange portion 1111 toward the fourth protective portion 124 does not overlap with the fourth support hole 133a. The fourth support hole 133a communicates with the third through hole on the fourth protective portion 124. The fourth bearing hole 133a and the third through hole are used to cooperate with the fixing component to fix the battery device 100a to the electrical equipment, or to connect with the hoisting equipment so that the hoisting equipment can perform hoisting operations on the battery device 100a.

[0103] By ensuring that the orthographic projection of the flange 1111 toward the fourth protective part 124 does not overlap with the fourth bearing hole 133a, the flange 1111 does not obstruct the fourth bearing hole 133a and the third through hole. This facilitates the connection between the fixing component and the fourth bearing hole 133a and the third through hole to achieve the connection between the battery device 100a and the external component. The bearing seat 133 not only has a simple structure and can reduce the overall weight of the battery device 100a, thereby reducing the impact of the weight of the battery device 100a on the energy consumption and range of the electrical equipment, but also can evenly distribute the load-bearing force to the reinforcing beam 12 and the box body 11, thereby effectively reducing stress concentration and further reducing the risk of deformation and cracking of the battery box 10, thus improving the reliability of the battery device 100a.

[0104] In some embodiments, please refer to Figures 10 and 11 The side wall 111 includes a flange portion 1111 and a wall portion 1112 connected between the flange portion 1111 and the bottom wall 112 of the box body 11. The reinforcing beam 12 is at least partially disposed on the side of the wall portion 1112 facing away from the receiving space 11a. The load-bearing assembly 13 includes a hook 134, which is disposed on the side of the reinforcing beam 12 facing away from the box body 11. The hook 134 is used to connect the box body 11 and external components.

[0105] In some embodiments, the hook 134 extends at least partially toward the direction away from the housing body 11 and bends toward the direction away from the flange 1111. The hook 134 can engage with a lifting device to facilitate the lifting device to lift the battery device 100a.

[0106] In some embodiments, the hook 134 is provided with a fifth bearing hole 134a, which can be used to cooperate with a fixing component to install the battery device 100a on an electrical device. The fifth bearing hole 134a can also be used to connect with a hoisting device to facilitate the hoisting device to perform a hoisting operation on the battery device 100a.

[0107] By at least partially setting the reinforcing beam 12 on the side of the wall 1112 facing away from the receiving space 11a, and setting the hook 134 on the side of the reinforcing beam 12 facing away from the box body 11, on the one hand, the flange 1111 can cover at least part of the hook 134, which can improve the space utilization rate of the side of the flange 1111 facing the reinforcing beam 12, so that the battery device 100a can be placed or stacked more compactly during transportation or storage, and the space utilization rate of the placement space can be improved; on the other hand, the setting of the hook 134 can more conveniently and quickly connect the battery box 10 to the external components, which helps to improve the connection efficiency between the battery box 10 and the external components.

[0108] In some embodiments, the hook member 134 includes a second fixing part 1341, a hook rod part 1342, and a hook head 1343. The second fixing part 1341 is fixed to the side of the first protective part 121 facing away from the box body 11. The hook rod part 1342 is connected between the second fixing part 1341 and the hook head 1343 and extends in a direction away from the box body 11. The hook head 1343 extends in a direction away from the flange part 1111 relative to the hook rod part 1342. The hook head 1343 is used to connect the box body 11 and external components. A fifth bearing hole 134a is provided in the hook head 1343 and / or the hook rod part 1342.

[0109] In some embodiments, both the hook head 1343 and the hook shank 1342 are provided with a fifth bearing hole 134a. The axial direction of the fifth bearing hole 134a on the hook head 1343 intersects the axial direction of the fifth bearing hole 134a on the hook shank 1342, which allows the battery device 100a to connect to external components not only from different directions but also in different ways. This increases the flexibility of the connection, allowing users to select the appropriate connection direction and method according to specific scenarios and needs. This helps to improve connection efficiency and stability and reduces the risk of the battery device 100a separating from the external components during interaction.

[0110] In some embodiments, the flange portion 1111 has a mounting post 113 on the side facing away from the second protective portion 122. The flange portion 1111 has a first mounting hole 113a that extends into the mounting post 113. The second protective portion 122 has a second mounting hole 122b that mates with the first mounting hole 113a. The first mounting hole 113a and the second mounting hole 122b are used to mate with the first mounting component 14 to fix the reinforcing beam 12 to the box body 11.

[0111] In some embodiments, the mounting post 113 is integrally formed on the side of the flange portion 1111 facing away from the second protective portion 122. The first mounting component 14 may be a bolt, screw, stud, or rivet, but is not limited thereto.

[0112] The first mounting hole 113a extends from the flange portion 1111 toward the second protective portion 122 into the mounting post 113, and the first mounting hole 113a can be coaxially arranged with the second mounting hole 122b.

[0113] By providing a mounting post 113 on the side of the flange 1111 facing away from the second protective part 122, and extending the first mounting hole 113a of the flange 1111 into the mounting post 113, the reinforcing beam 12 can be fixed to the flange 1111 simply by providing the first mounting component 14 in the first mounting hole 113a and the second mounting hole 122b. This not only saves on the types and quantities of parts, but also reduces the assembly difficulty and saves time during the assembly of the battery box 10, thus improving assembly efficiency.

[0114] In some embodiments, the mounting post 113 is fixedly connected to the side of the flange portion 1111 facing away from the second protective portion 122. The mounting post 113 has a fifth mounting hole (not shown) extending from the side of the mounting post 113 facing the flange portion 1111 toward the interior of the mounting post 113. The fifth mounting hole, the first mounting hole 113a and the second mounting hole 122b are coaxially arranged and sequentially connected, and are used to cooperate with the first mounting component 14 to fix the reinforcing beam 12 to the box body 11.

[0115] In some embodiments, the flange portion 1111 is further provided with a third mounting hole 1111b, and the second protective member is provided with a fourth mounting hole 122c adapted to the third mounting hole 1111b. The third mounting hole 1111b and the fourth mounting hole 122c are used to cooperate with a second mounting component (not shown) to fix the reinforcing beam 12 to the box body 11. The second mounting component can be a bolt, screw, stud, or rivet, but is not limited to these.

[0116] In some embodiments, the box body 11 includes an injection-molded box body 11, and the reinforcing beam 12 includes a metal reinforcing beam 12.

[0117] In some embodiments, the reinforcing beam 12 can be embedded in the side of the box body 11 facing away from the receiving space 11a by means of secondary injection molding or multiple injection molding.

[0118] In some embodiments, the reinforcing beam 12 can also be connected to the box body 11 by means of riveting, bolting, adhesive bonding, welding, etc.

[0119] By setting a metal reinforcing beam 12 on the side of the injection molded box body 11 facing away from the accommodating space 11a, the structural strength, extrusion resistance and impact resistance of the injection molded box body 11 can be improved, thereby enhancing the ability of the injection molded box body 11 to resist external impacts and extrusions and reducing the risk of deformation and cracking of the injection molded box body 11.

[0120] In some embodiments, the sidewall 111 includes two first sidewalls 114 disposed opposite to each other in a first direction XX and two second sidewalls 115 disposed opposite to each other in a second direction YY. The dimension of the first sidewall 114 along the second direction YY is greater than the dimension of the second sidewall 115 along the first direction XX, and the first direction XX is perpendicular to the second direction YY. A reinforcing beam 12 is disposed on the two first sidewalls 114, and one end of the reinforcing beam 12 extends to one of the two second sidewalls 115, and the other end of the reinforcing beam 12 extends to the other of the two second sidewalls 115.

[0121] The first sidewall 114 includes a flange portion 1111 and a wall portion 1112 connecting the flange portion 1111 and the bottom wall 112 of the box body 11. The second sidewall 115 also includes a flange portion 1111 and a wall portion 1112 connecting the flange portion 1111 and the bottom wall 112 of the box body 11. The first sidewall 114 is the long sidewall 111 of the box body 11, and the second sidewall 115 is the short sidewall 111 of the box body 11. The battery box 10 includes two reinforcing beams 12. One of the two reinforcing beams 12 is disposed on one of the two first side walls 114, and the other of the two reinforcing beams 12 is disposed on the other of the two first side walls 114. Corresponding load-bearing components 13 are disposed on the two reinforcing beams 12, so that the load-bearing force can be evenly applied to both sides of the box body 11. This can enhance the overall structural strength of the battery box 10 and the stability of the connection between the battery box 10 and external components, thereby reducing the risk of deformation, cracking and other problems of the battery box 10.

[0122] By placing the reinforcing beam 12 on the two first sidewalls 114, with one end of the reinforcing beam 12 extending to one of the two second sidewalls 115 and the other end extending to the other of the two second sidewalls 115, the reinforcing beam 12 can cover a larger area of ​​the battery box body 11 compared to the reinforcing beam 12 placed on the two first sidewalls 114, thus providing broader protection for the battery box body 11. This allows the reinforcing beam 12 to better distribute the load-bearing force on the battery box body 10, thereby significantly improving the structural strength of the battery box body 10 and reducing the risk of deformation and cracking. On the other hand, by having both ends of the reinforcing beam 12 cover the connection area between the first sidewalls 114 and the second sidewalls 115, the structural strength of the connection area between the first sidewalls 114 and the second sidewalls 115 can be enhanced, and the stress distribution can be optimized, further improving the reliability of the battery device 100a.

[0123] In some embodiments, as Figures 2 to 7 As shown, the battery device 100a includes a battery cell and a battery housing 10. The battery housing 10 includes at least a housing body 11, a reinforcing beam 12, and a load-bearing assembly 13. The housing body 11 forms an accommodating space 11a for accommodating the battery cell. The housing body 11 includes a side wall 111 and a bottom wall 112. The side wall 111 includes a flange portion 1111 and a wall portion 1112 connected between the flange portion 1111 and the bottom wall 112 of the housing body 11. The load-bearing assembly 13 is disposed on the side of the reinforcing beam 12 facing away from the side wall 111. The reinforcing beam 12 includes a first protective portion 121 and a second protective portion 122. The first protective portion 121 is disposed on the side of the wall portion 1112 facing away from the accommodating space 11a, and the second protective portion 122 is disposed on the side of the flange portion 1111 near the bottom wall 112.

[0124] The load-bearing component 13 includes a first support member 131 and a second support member 132. The first support member 131 is disposed on the side of the second protective part 122 facing away from the flange part 1111, and a limiting groove 131b is formed between the first support member 131 and the second protective part 122. The first support member 131 is provided with a first load-bearing hole 131a. The second support member 132 is disposed in the limiting groove 131b and is connected between the second protective part 122 and the first support member 131. The second support member 132 is provided with a second load-bearing hole 132a, and the axial direction of the first load-bearing hole 131a intersects with the axial direction of the second load-bearing hole 132a.

[0125] The first support member 131 includes a support portion 1311 and two connecting portions 1312. The support portion 1311 and the second protective portion 122 are spaced apart. The support portion 1311 is provided with a first bearing hole 131a. The two connecting portions 1312 are connected to the two sides of the support portion 1311 and extend toward the second protective portion 122 to form a limiting groove 131b with the support portion 1311 and the second protective portion 122. One end of the two connecting portions 1312 away from the support portion 1311 is fixed to the second protective portion 122.

[0126] The bearing assembly 13 further includes a sleeve 1321, which has a third bearing hole 1321a coaxially arranged with the first bearing hole 131a; the second protective part 122 has a first through hole 122a, and the flange part 1111 has a second through hole 1111a. One end of the sleeve 1321 is located in the limiting groove 131b, and the other end of the sleeve 1321 passes through the first through hole 122a and the second through hole 1111a, and extends to the side of the flange part 1111 away from the second protective part 122.

[0127] In some embodiments, as Figures 8 to 9 As shown, the battery device 100a includes a battery cell and a battery housing 10. The battery housing 10 includes at least a housing body 11, a reinforcing beam 12, and a load-bearing assembly 13. The housing body 11 forms a receiving space 11a for receiving the battery cell. The housing body 11 includes a side wall 111 and a bottom wall 112. The side wall 111 includes a flange 1111 and a wall portion 1112 connected between the flange 1111 and the bottom wall 112 of the housing body 11. The reinforcing beam 12 includes a third protective portion 123, a fourth protective portion 124, and a fifth protective portion 125. The third protective portion 123 is disposed on the side of the wall portion 1112 facing away from the receiving space 11a. The fourth protective portion 124 is connected to the... The third protective part 123 is located away from the flange part 1111. The fifth protective part 125 is connected to the third protective part 123 on the side close to the flange part 1111 and is connected to the flange part 1111. The fourth protective part 124 is parallel to and spaced apart from the flange part 1111. The bearing assembly 13 is located on the side of the fourth protective part 124 facing the flange part 1111. The bearing assembly 13 includes a bearing seat 133, which is provided with a fourth bearing hole 133a. The fourth protective part 124 is provided with a third through hole. The fourth bearing hole 133a and the third through hole are coaxially arranged. The orthographic projection of the flange part 1111 towards the fourth protective part 124 does not overlap with the fourth bearing hole 133a.

[0128] In some embodiments, as Figures 10 and 11As shown, the battery device 100a includes a battery cell and a battery housing 10. The battery housing 10 includes at least a housing body 11, a reinforcing beam 12, and a load-bearing assembly 13. The housing body 11 forms a receiving space 11a for receiving the battery cell. The housing body 11 includes a side wall 111, which includes a flange 1111 and a wall portion 1112 connected between the flange 1111 and the bottom wall 112 of the housing body 11. The reinforcing beam 12 is at least partially disposed on the side of the wall portion 1112 facing away from the receiving space 11a. The load-bearing assembly 13 includes a hook 134 disposed on the side of the reinforcing beam 12 facing away from the housing body 11. The hook 134 is used to connect the housing body 11 and external components.

[0129] The hook 134 includes a second fixing part 1341, a hook rod part 1342, and a hook head 1343. The second fixing part 1341 is fixed to the side of the first protective part 121 facing away from the box body 11. The hook rod part 1342 connects the second fixing part 1341 and the hook head 1343 and extends in a direction away from the box body 11. The hook head 1343 extends in a direction away from the flange part 1111 compared to the hook rod part 1342. The hook head 1343 is used to connect the box body 11 and external components. A fifth bearing hole 134a is provided on the hook head 1343 and / or the hook rod part 1342.

[0130] This application further proposes a battery housing, the structure of which can be referred to the battery housing 10 in the above embodiments, and the battery housing can be used in the battery device 100a.

[0131] According to some embodiments of this application, the battery device 100a described above can be used in electrical equipment. With this configuration, by providing a reinforcing beam 12 on the side wall 111 of the housing body 11 facing away from the receiving space 11a, and simultaneously providing a load-bearing component 13 for connecting the housing body 11 and external components on the side of the reinforcing beam 12 facing away from the side wall 111, the reinforcing beam 12 improves the structural strength, compression resistance, and impact resistance of the battery housing 10, thereby enhancing the battery housing 10's ability to resist external impacts and compressions and reducing the risk of deformation and cracking. Furthermore, by placing the load-bearing component 13 on the side of the reinforcing beam 12 facing away from the side wall 111, during the interaction between the battery device 100a and external components, the load-bearing component 13 can distribute the load-bearing force to the entire structure of the battery housing 10 through the reinforcing beam 12, reducing the risk that the stress in the area where the load-bearing component 13 is located is greater than in the surrounding area, thus effectively weakening stress concentration and further reducing the risk of deformation and cracking of the battery housing 10, thereby improving the reliability of the battery device 100a.

[0132] 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 battery device, characterized in that, The battery device includes a battery cell and a battery housing, wherein the battery housing includes at least: The box body has a receiving space for accommodating the battery cell; A reinforcing beam is provided on the side wall of the box body facing away from the receiving space; A load-bearing assembly is disposed on the side of the reinforcing beam facing away from the side wall, and the load-bearing assembly is used to connect the box body and external components.

2. The battery device according to claim 1, characterized in that, The sidewall includes a flange portion and a wall portion connecting the flange portion and the bottom wall of the box body, and the reinforcing beam is at least partially disposed on the side of the flange portion near the bottom wall.

3. The battery device according to claim 2, characterized in that, The reinforcing beam includes a first protective part and a second protective part. The first protective part is disposed on the side of the wall portion facing away from the receiving space, and the second protective part is disposed on the side of the flange portion near the bottom wall.

4. The battery device according to claim 3, characterized in that, The carrier component includes: A first support member is disposed on the side of the second protective part facing away from the flange part, and a limiting groove is formed between the first support member and the second protective part. The first support member is provided with a first bearing hole. The second support member is disposed in the limiting groove and connected between the second protective part and the first support member. The second support member is provided with a second bearing hole, and the axial direction of the first bearing hole intersects with the axial direction of the second bearing hole.

5. The battery device according to claim 4, characterized in that, The first support member includes: A support portion, which is spaced apart from the second protective portion, is provided with the first bearing hole; Two connecting portions are connected to the two sides of the support portion and extend toward the second protective portion to form the limiting groove with the support portion and the second protective portion. The end of the connecting portion away from the support portion is fixed to the second protective portion.

6. The battery device according to claim 4, characterized in that, The bearing assembly further includes a sleeve, which is provided with a third bearing hole coaxially disposed with the first bearing hole; The second protective part has a first through hole, the flange part has a second through hole, one end of the sleeve is located in the limiting groove, and the other end of the sleeve passes through the first through hole and the second through hole and extends to the side of the flange part away from the second protective part.

7. The battery device according to claim 1, characterized in that, The sidewall includes a flange portion and a wall portion connecting the flange portion and the bottom wall of the box body; the reinforcing beam includes a third protective portion and a fourth protective portion. The third protective part is disposed on the side of the wall facing away from the receiving space, the fourth protective part is connected to the side of the third protective part away from the flange, the fourth protective part is parallel to and spaced apart from the flange, and the bearing assembly is disposed on the side of the fourth protective part facing the flange.

8. The battery device according to claim 7, characterized in that, The bearing assembly includes a bearing base, the bearing base is provided with a fourth bearing hole, the fourth protective part is provided with a third through hole, and the fourth bearing hole and the third through hole are coaxially arranged; Wherein, the orthographic projection of the flange portion toward the fourth protective portion does not overlap with the fourth bearing hole.

9. The battery device according to claim 1, characterized in that, The sidewall includes a flange portion and a wall portion connecting the flange portion and the bottom wall of the box body, and the reinforcing beam is at least partially disposed on the side of the wall portion facing away from the receiving space; The load-bearing component includes a hook, which is disposed on the side of the reinforcing beam facing away from the box body, and is used to connect the box body and the external components.

10. The battery device according to any one of claims 3 to 9, characterized in that, The flange portion has a mounting post on the side facing away from the second protective portion. The flange portion has a first mounting hole that extends into the mounting post. The second protective portion has a second mounting hole that mates with the first mounting hole. The first mounting hole and the second mounting hole are used to mate with the first mounting component to fix the reinforcing beam to the box body.

11. The battery device according to any one of claims 1 to 9, characterized in that, The box body includes an injection-molded box body, and the reinforcing beam includes a metal reinforcing beam.

12. The battery device according to any one of claims 1 to 9, characterized in that, The box body includes two first sidewalls arranged opposite each other in a first direction and two second sidewalls arranged opposite each other in a second direction. The dimension of the first sidewalls along the second direction is larger than the dimension of the second sidewalls along the first direction. The first direction is perpendicular to the second direction. The reinforcing beam is disposed on the two first sidewalls, with one end of the reinforcing beam extending to one of the two second sidewalls and the other end of the reinforcing beam extending to the other of the two second sidewalls.

13. A battery housing, characterized in that, The battery housing includes at least: The box body has a receiving space for accommodating the battery cell; A reinforcing beam is provided on the side wall of the box body facing away from the receiving space; A load-bearing assembly is disposed on the side of the reinforcing beam facing away from the side wall, and the load-bearing assembly is used to connect the box body and external components.

14. The battery housing according to claim 13, characterized in that, The sidewall includes a flange portion and a wall portion connecting the flange portion and the bottom wall of the box body, and the reinforcing beam is at least partially disposed on the side of the flange portion near the bottom wall.

15. The battery housing according to claim 14, characterized in that, The reinforcing beam includes a first protective part and a second protective part. The first protective part is disposed on the side of the wall portion facing away from the receiving space, and the second protective part is disposed on the side of the flange portion near the bottom wall.

16. The battery housing according to claim 15, characterized in that, The carrier component includes: A first support member is disposed on the side of the second protective part facing away from the flange part, and a limiting groove is formed between the first support member and the second protective part. The first support member is provided with a first bearing hole. The second support member is disposed in the limiting groove and connected between the second protective part and the first support member. The second support member is provided with a second bearing hole, and the axial direction of the first bearing hole intersects with the axial direction of the second bearing hole.

17. The battery housing according to claim 16, characterized in that, The first support member includes: A support portion, which is spaced apart from the second protective portion, is provided with the first bearing hole; Two connecting portions are connected to the two sides of the support portion and extend toward the second protective portion to form the limiting groove with the support portion and the second protective portion. The end of the connecting portion away from the support portion is fixed to the second protective portion.

18. The battery housing according to claim 16, characterized in that, The bearing assembly further includes a sleeve, which is provided with a third bearing hole coaxially disposed with the first bearing hole; The second protective part has a first through hole, the flange part has a second through hole, one end of the sleeve is located in the limiting groove, and the other end of the sleeve passes through the first through hole and the second through hole and extends to the side of the flange part away from the second protective part.

19. An electrical appliance, characterized in that, The electrical equipment includes a battery device as described in any one of claims 1 to 12, or a battery housing as described in any one of claims 13 to 18.

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