Battery box body, battery pack and electric equipment

Abstract

The utility model relates to the technical field of batteries, in particular to a battery box body, a battery pack and electric equipment. The battery box body comprises a box body structure, a plurality of reinforcing structures and a plurality of lifting lugs, wherein the box body structure comprises a box body and a connecting edge; the reinforcing structure comprises a connecting plate and a reinforcing plate, the connecting plate is connected with the connecting edge and extends in the first direction, the reinforcing plate is connected between the connecting plate and the box body and extends in the second direction, and an included angle is formed between the first direction and the second direction; and the lifting lug penetrates through the connecting plate and the connecting edge. According to the battery box body provided by the embodiment, a plurality of split type reinforcing structures are matched with the box body structure, so that the problems that in the prior art, an integrated design occupies a large space and a local reinforcing design is difficult to realize are effectively solved.

Description

Technical Field

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

[0002] The battery housing is a key component of the battery pack, primarily functioning to protect the battery cells and the electrical control system. The battery housing has connecting edges with lifting lugs to allow the battery pack to be suspended from the electrical device. These connecting edges bear significant stress. To enhance the strength of the connecting edges and thus the overall strength of the battery housing, related technologies typically employ an integrated reinforcing plate connected to the connecting edges.

[0003] First, the unibody design occupies more space, and additional design is required when independent reinforcement is needed at the connecting edges. Furthermore, when maintenance is required, the reinforcing plate must be completely disassembled and replaced, which not only increases the weight of the battery box but may also lead to increased material usage, resulting in a waste of structural strength and further increasing maintenance costs. Utility Model Content

[0004] This application provides a battery housing, a battery pack, and an electrical device to solve the problems in related technologies where the reinforcing plate of the battery housing adopts an integrated structure, resulting in increased weight of the battery housing, material waste, and increased maintenance costs.

[0005] The first aspect of this application provides a battery housing, comprising:

[0006] The enclosure structure includes the enclosure body and connecting edges;

[0007] Multiple reinforcing structures are provided, each including a connecting plate and a reinforcing plate. The connecting plate is connected to the connecting edge and extends along a first direction. The reinforcing plate is connected between the connecting plate and the box body and extends along a second direction. The first direction and the second direction are set at an angle.

[0008] Multiple lifting lugs are provided, which pass through the connecting plate and the connecting edge.

[0009] In one possible implementation, the connecting plate is recessed with at least one bending groove in a direction away from the connecting edge.

[0010] In one possible implementation, the connecting plate has a first bending groove and a second bending groove, the first bending groove and the second bending groove are spaced apart, and the extending direction of the first bending groove and / or the second bending groove is parallel to the first direction.

[0011] In one possible implementation, the connecting plate includes a first connecting portion, a second connecting portion, and a second intermediate portion, the second intermediate portion being connected to the first connecting portion, and the second intermediate portion being bent to one side from the first connecting portion and connected to the second connecting portion, the first bending groove being provided on the first connecting portion, the second bending groove being provided on the second connecting portion; the second connecting portion being connected to the reinforcing plate.

[0012] In one possible implementation, the reinforcing plate includes a positioning portion and a fixing portion connected together, the positioning portion being fitted and connected to the outer wall of the box body, the fixing portion being connected to the connecting plate, and the positioning portion extending at least partially along the second direction.

[0013] In one possible implementation, the positioning part includes a reinforcing section and a connecting section connected to each other, and the reinforcing section and / or the connecting section are connected to the fixing part. The reinforcing section and the connecting section are arranged at an angle, and the reinforcing section and the connecting section are respectively at least partially attached to the outer wall of the box body.

[0014] In one possible implementation, the fixing part bends from the edge of the positioning part toward the side away from the box body.

[0015] In one possible implementation, the reinforcing plate is recessed with at least one third reinforcing groove in a direction away from the box body, the extension direction of the third reinforcing groove being parallel to the second direction.

[0016] In one possible implementation, the battery housing further includes at least one reinforcing member, which is spaced apart from the reinforcing structure and connected to the housing body and the connecting edge.

[0017] In one possible implementation, the reinforcing member includes a first plate portion, a second plate portion, and a first intermediate portion, wherein the first plate portion is connected to the connecting edge, the second plate portion is connected to the box body, and the first intermediate portion is inclined from the first plate portion toward the first plate portion and connected to the second plate portion.

[0018] In one possible implementation, the reinforcing member is recessed with at least one reinforcing groove in a direction away from the housing structure.

[0019] In one possible implementation, the reinforcing member includes a first reinforcing groove and a second reinforcing groove, wherein the extending direction of the first reinforcing groove is set at an angle to the extending direction of the second reinforcing groove, and / or the first reinforcing groove and the second reinforcing groove are spaced apart.

[0020] In one possible implementation, the first reinforcing groove is disposed on the first plate portion, and the second reinforcing groove is disposed on the second plate portion.

[0021] In one possible implementation, the box body has a first connecting groove, the reinforcing member is at least partially accommodated in the first connecting groove, and the reinforcing member is connected to the inner wall of the first connecting groove.

[0022] In one possible implementation, the box body has a second connecting groove, and the second connecting groove is spaced apart from the first connecting groove. The reinforcing plate is at least partially housed in the first connecting groove and connected to the inner wall of the first connecting groove.

[0023] In one possible implementation, the outer wall of the box body is provided with a second connecting groove, and the reinforcing plate is at least partially accommodated in the second connecting groove and connected to the inner wall of the second connecting groove.

[0024] In one possible implementation, the second connecting groove includes at least two walls, and at least one set of two adjacent walls are arranged at an included angle, with the reinforcing plate abutting against at least one of the walls.

[0025] In one possible implementation, the second connecting groove includes a first wall and a second wall, the first wall being connected to the second wall and the first wall being set at an angle to the second wall, and the reinforcing plate being fitted and connected to the first wall and / or the second wall.

[0026] In one possible implementation, the connecting edge has a first connecting hole, the connecting plate has a second connecting hole corresponding to the first connecting hole, and the lifting lugs are respectively connected to the first connecting hole and the second connecting hole.

[0027] A second aspect of this application provides a battery pack, comprising:

[0028] Battery housing as described in any of the above; and

[0029] The battery cell is located inside the battery box.

[0030] A third aspect of this application provides an electrical appliance, comprising:

[0031] Electrical appliances; and

[0032] The battery pack as described in any of the above claims is used to supply power to the electrical device.

[0033] Implementing the embodiments of this application has the following beneficial effects:

[0034] In the battery housing of this embodiment, by adopting multiple split reinforcing structures in conjunction with the housing structure, the problems of large space occupation of integrated design and difficulty in realizing local reinforcement design in the prior art are effectively solved.

[0035] Specifically, the modular design with multiple reinforcing structures allows the battery casing to be reinforced at different locations along the connection points as needed, while still meeting overall strength requirements. This significantly improves the overall structural strength of the battery casing. This flexibility enables the design to meet the specific strength requirements of different application scenarios, avoiding waste caused by excessive material design.

[0036] Meanwhile, by extending the connecting plate along the first direction and the reinforcing plate along the second direction, when the box body is subjected to external impact, the reinforcing plate can disperse some of the impact energy along the first direction and conduct it to the connecting edge through the connecting plate, thereby reducing the deformation of the box body in the second direction and improving the space compression within the box structure. When this battery box is used in a battery pack, it can reduce the damage to the battery cells.

[0037] Furthermore, the design of this implementation allows for maintenance by simply disassembling and replacing the reinforcing plates that require repair. This not only reduces the complexity of maintenance but also minimizes the impact on the weight of the equipment during the maintenance process. This convenient maintenance method helps reduce maintenance costs and improve repair efficiency, thereby ensuring the reliability and safety of the battery housing during long-term operation. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A schematic diagram of the battery box structure in an embodiment of this utility model is shown;

[0040] Figure 2 An enlarged schematic diagram of a portion of the battery box structure in an embodiment of this utility model is shown;

[0041] Figure 3 It shows Figure 2 A magnified view of part A in the middle;

[0042] Figure 4 A perspective view of the reinforcing member in an embodiment of the present invention is shown;

[0043] Figure 5A perspective view of the reinforcing structure in an embodiment of the present invention is shown;

[0044] Figure label:

[0045] 10-Battery housing;

[0046] 100 - Box structure; 110 - Box body; 111 - First connecting groove; 112 - Second connecting groove; 1121 - First wall surface; 1122 - Second wall surface; 120 - Connecting edge; 131 - First connecting hole;

[0047] 200 - Reinforcing structure; 210 - Connecting plate; 211 - First connecting part; 2111 - First bending groove; 2112 - Second connecting hole; 212 - Second connecting part; 2121 - Second bending groove; 213 - Second intermediate part; 220 - Reinforcing plate; 221 - Positioning part; 2211 - Reinforcing section; 22111 - Third reinforcing groove; 2212 - Connecting section; 222 - Fixing part;

[0048] 300-Hanging lug;

[0049] 400 - Reinforcing component; 410 - First plate section; 411 - First reinforcing groove; 420 - Second plate section; 421 - Second reinforcing groove; 430 - First intermediate section. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] The battery casing is a key component of the battery pack, primarily functioning to protect the battery cells and electrical control system. The battery casing features connecting edges with lifting lugs for hoisting the battery pack to the electrical device. These connecting edges bear significant stress. To enhance the strength of the connecting edges and thus the overall strength of the battery casing, related technologies typically employ an integrated reinforcing plate connected to the connecting edges. While this structure simplifies assembly during manufacturing and provides overall protection, it has some limitations in practical applications.

[0052] First, unibody designs typically occupy more space, posing a challenge for compact battery enclosure designs. Because unibody structures cannot be independently reinforced at localized locations along the connection edges to meet specific battery enclosure design requirements, overall strength is insufficient. For example, when load-bearing requirements are high in a particular area, the design cannot be optimized through localized reinforcement, which affects the battery enclosure's impact resistance and durability.

[0053] Secondly, the integrated disassembly and replacement of the reinforcing plate during maintenance is inconvenient. This process not only increases the overall weight of the battery box but also leads to material waste. For example, when a section of the reinforcing plate is damaged or requires repair, the entire plate must be replaced, rather than simply replacing the damaged part. This design philosophy increases maintenance costs and also affects the long-term efficiency of the battery box.

[0054] Specifically, the tray design for power battery packs in related technologies typically employs a one-piece stamped steel lifting lug reinforcement plate, which is located at the bottom of the tray. This structure not only occupies the height space of the battery pack but may also affect the protective function of the tray bottom when the vehicle's ground clearance is low. The space wasted due to the one-piece design results in a heavier overall structure, reducing the flexibility and maintainability of the equipment, thereby increasing the complexity of the overall design.

[0055] Furthermore, the monolithic structure limits the possibility of localized reinforcement, undoubtedly reducing the strength performance of the battery housing under high loads. For some demanding applications, this design is particularly unsuitable in terms of structural strength requirements. Therefore, exploring a battery housing structure that can support localized reinforcement without compromising the overall design will be an important direction for improving battery system performance and maintenance convenience.

[0056] To solve the above problems, see Figures 1 to 5 As shown, this embodiment of the present invention provides a battery box 10, which includes a box structure 100, a plurality of reinforcing structures 200, and a plurality of lifting lugs 300. The box structure 100 includes a box body 110 and a connecting edge 120. The reinforcing structure 200 includes a connecting plate 210 and a reinforcing plate 220. The connecting plate 210 is connected to the connecting edge 120 and extends along a first direction. The reinforcing plate 220 is connected between the connecting plate 210 and the box body 110 and extends along a second direction. The first direction and the second direction are arranged at an angle. The lifting lugs 300 pass through the connecting plate 210 and the connecting edge 120. Specifically, the box body 110 may be recessed to form a space for accommodating battery cells, and the connecting edge 120 is arranged around the edge of the box body 110.

[0057] In the battery housing 10 of this embodiment, by using multiple split reinforcing structures 200 in conjunction with the housing structure 100, the problems of large space occupation of integrated design and difficulty in realizing local reinforcement design in the prior art are effectively solved.

[0058] Specifically, the modular design of multiple reinforcing structures 200 allows the battery housing 10 to be reinforced at different locations on the connecting edge 120 as needed, while still meeting overall strength requirements, significantly improving the overall structural strength of the battery housing 10. This flexibility enables the design to meet the specific strength requirements of different application scenarios, avoiding waste caused by excessive material design.

[0059] Meanwhile, by extending the connecting plate 210 along the first direction and the reinforcing plate 220 along the second direction, when the box body 110 is subjected to external impact, the reinforcing plate 220 can disperse some of the impact energy along the first direction and conduct it to the connecting edge 120 through the connecting plate 210, thereby reducing the deformation of the box body 110 in the second direction and improving the space compression within the box structure 100. When this battery box 10 is used in a battery pack, the damage to the battery cells can be reduced.

[0060] Furthermore, the design of this embodiment allows for maintenance by simply disassembling the reinforcing plate 220 that needs repair. This not only reduces the complexity of maintenance but also minimizes the impact on the weight of the equipment during the maintenance process. This convenient maintenance method helps reduce maintenance costs and improve repair efficiency, thereby ensuring the reliability and safety of the battery housing 10 during long-term operation.

[0061] In this embodiment, the design of the connecting edge 120 allows it to be directly connected to external components, such as the lifting lug 300 or other external components. The housing structure 100 can be manufactured using a stamping process, forming a space for configuring the battery cells within the housing body 110. This integrated design not only improves manufacturing efficiency but also ensures structural integrity and strength, thus providing a stable environment for the battery pack.

[0062] Specifically, in this embodiment, the number of lifting lugs 300 and connecting plates 210 can be in one-to-one correspondence, that is, each lifting lug 300 is fixedly connected to the housing structure 100 through the connecting plate 210, and multiple lifting lugs 300 can be evenly arranged on the connecting edge 120 so that the battery housing 10 can be connected to the external hoisting equipment; of course, in some embodiments, the lifting lugs 300 and connecting plates 210 can also be not in one-to-one correspondence, that is, some lifting lugs 300 can be fixed to the connecting edge 120 individually. After the reinforcing structure 200 is combined and fixed with the housing body 110 and the connecting edge 120 respectively, the overall strength of the battery housing 10 can also be improved.

[0063] In some embodiments, the battery housing 10 further includes a reinforcing crossbar (not shown) designed to extend in a direction perpendicular to direction D and connect to the housing structure 100 to improve the strength of the housing structure 100 in the direction perpendicular to direction D. The main purpose of this design is to address potential structural weaknesses of the battery housing 10 when subjected to external loads, thereby improving its overall compressive strength and durability.

[0064] In practice, the reinforcing structure 200 and the reinforcing crossbar can be respectively located on opposite sides of the housing structure 100. Specifically, the battery cells in the battery pack can be arranged on the same side as the reinforcing crossbar, while the reinforcing structure 200 is placed on the other side of the housing structure 100. This layout effectively avoids the reinforcing structure 200 occupying the installation space of the battery cells, thereby ensuring the flexibility of battery cell installation in design and use. In addition, the reasonable spatial layout can effectively utilize the internal space of the housing and fully realize the functionality of the design.

[0065] By introducing reinforcing crossbars into the battery housing 10, not only is the overall strength of the structure enhanced in the direction perpendicular to direction D, but the overall design of the reinforcing structure 200 is also supported. When subjected to external forces, the addition of the reinforcing crossbars effectively disperses and transmits the stress applied to the housing structure 100, reducing localized stress concentration and thus better protecting the internal components and electrical control system of the battery pack. This design approach helps improve the impact resistance of the battery housing 10 under both dynamic and static conditions, ensuring the stability and safety of the battery system.

[0066] Furthermore, the connecting plate 210 has at least one bending groove, which is recessed into the surface of the connecting plate 210 facing the box structure 100. The bending groove allows the connecting plate 210 to effectively distribute stress when subjected to external loads, thereby increasing its bending resistance. By forming a recessed bending groove on the surface of the connecting plate 210, the connecting plate 210 can form relatively high rigidity after being subjected to force, making it stable under dynamic or static conditions.

[0067] Specifically, the design of the bending groove makes the connecting plate 210 more structurally oriented, allowing for a thinner material design while maintaining the same load-bearing capacity by altering its stress distribution. This innovative design not only enhances the overall strength of the connecting plate 210 but also provides a more compact structural form for its combination with the housing structure 100. When the thickness of the connecting plate 210 is reduced, the overall size of the housing structure 100 can be reduced, which is particularly important in space-constrained applications.

[0068] In terms of specific implementation, the number and depth of the bending grooves can be adjusted according to specific design requirements. There can be one, two, or more bending grooves, and the depth can vary between 1 mm and 5 mm, with the specific value determined based on the required strength and weight reduction requirements. For example, in some applications, deeper bending grooves (e.g., 4 mm) can provide greater reinforcement in scenarios requiring the withstand of greater impact forces, while shallower bending grooves (e.g., 1 mm) are suitable for designs with higher lightweight requirements. Through such adjustments, an optimal balance between performance and economy can be achieved in different application scenarios.

[0069] Furthermore, the design of the bending groove allows the connecting plate 210 to better adapt to different installation environments. When the connecting plate 210 is combined with the housing structure 100, the shape design of the groove can provide diverse solutions for load distribution, thereby further improving the reliability and durability of the entire structure. A reasonable bending groove design can help optimize the overall structure, reduce vibration transmission, improve protective performance, and enhance resistance to external forces.

[0070] See Figure 5 As shown, in one embodiment, the connecting plate 210 has a first bending groove 2111 and a second bending groove 2121, which are spaced apart, and the extending directions of the first bending groove 2111 and / or the second bending groove 2121 are parallel to a first direction. This design effectively strengthens the connecting plate 210 structurally, thereby increasing its strength.

[0071] First, by setting the first bending groove 2111 and the second bending groove 2121, the overall strength of the connecting plate 210 at these two groove locations can be significantly improved. This is because the shape of the bending groove can guide the load transfer, making the pressure more evenly distributed inside the connecting plate 210. This design not only improves the bending and torsional resistance of the connecting plate 210, but also enhances its durability in actual use.

[0072] Specifically, when the extension directions of the first bending groove 2111 and the second bending groove 2121 are parallel to the first direction, the impact resistance of the connecting plate 210 in the first direction is improved. When a load is applied along the first direction, the bending grooves can effectively absorb and disperse the impact force, avoiding stress concentration. Simultaneously, due to the presence of the second bending groove 2121, when external forces act on the connecting plate 210, their combined effect further enhances the stability of the connecting plate 210 in the direction perpendicular to the first direction. This impact resistance in different directions enables the connecting plate 210 to perform more reliably under load and impact conditions.

[0073] Specifically, the connecting plate 210 includes a first connecting portion 211, a second connecting portion 212, and a second intermediate portion 213. The second intermediate portion 213 is connected to the first connecting portion 211, and the second intermediate portion 213 is bent from the first connecting portion 211 toward one side and connected to the second connecting portion 212. A first bending groove 2111 is provided on the first connecting portion 211, and a second bending groove 2121 is provided on the second connecting portion 212. The second connecting portion 212 is connected to the reinforcing plate 220.

[0074] When manufacturing the connecting plate 210, a first bending groove 2111 and a second bending groove 2121 are first formed on the surfaces of the first connecting portion 211 and the second connecting portion 212 using stamping and bending techniques. The formation of these grooves effectively improves the overall strength of the first connecting portion 211 and the second connecting portion 212, ensuring that they can withstand higher loads and impacts in practical applications. This design maintains both lightweight materials and excellent strength performance. The design of the bending grooves can be understood as a mechanical optimization method. Through this shape change, the connecting plate 210 can improve its performance under stress, disperse stress concentration, avoid the risk of material fatigue and breakage, and reduce processing difficulty and manufacturing costs.

[0075] Building upon this, further bending processing is employed to create a stepped structure from the first connecting portion 211, the second connecting portion 212, and the second intermediate portion 213. This shape change not only improves the matching performance between the connecting plate 210 and the housing structure 100 but also provides a more stable connection method. The stepped structure effectively increases the contact area, thereby enhancing the stability and load-bearing capacity of the connection, ensuring that the connecting plate 210 is less prone to loosening during use, and extending its service life.

[0076] In practice, the first connecting part 211 is connected to the box body 110, while the second connecting part 212 is connected to the connecting edge 120. This connection method takes into account the integrity and stability of the structure, ensuring that under stress conditions, the stress can be effectively shared among the connecting parts, reducing local concentration effects, and avoiding damage or failure of the structure due to external forces or vibrations.

[0077] See Figure 3 and Figure 5 As shown, in one embodiment, the reinforcing plate 220 includes a positioning part 221 and a fixing part 222 connected together. The positioning part 221 is fitted and connected to the outer wall of the box body 110, and the fixing part 222 is connected to the connecting plate 210. The positioning part 221 extends at least partially along the second direction. This design ensures that the positioning part 221 extends along the second direction to a certain extent, thereby effectively dispersing and transmitting stress when the box body 110 is subjected to external impact.

[0078] Specifically, by fitting the positioning part 221 to the outer wall of the box body 110, the connection strength between the reinforcing plate 220 and the box body 110 can be ensured. This allows the impact force generated when the box body 110 is subjected to external impact to be smoothly transmitted to the connecting plate 210 through the positioning part 221 and the fixing part 222, and then transmitted to the connecting edge 120 through the connecting plate 210. This feature not only improves the overall structure's impact resistance but also reduces the risk of damage caused by local stress concentration.

[0079] The fixing part 222 is configured to extend along a first direction, allowing the impact force to be continuously transmitted to the connecting plate 210 along that direction. This design not only ensures efficient force transmission but also enhances the stability and durability of the structure. It is important to emphasize that the connection between the fixing part 222 and the connecting plate 210 is not limited to a simple connection; various connection methods such as welding, screws, and rivets can be used. For example, welding provides good overall strength, suitable for applications subject to heavy loads; while screws facilitate later maintenance and repair, especially important when equipment requires frequent disassembly and assembly, where the flexibility offered by screw connections is paramount.

[0080] Specifically, the positioning part 221 includes a reinforcing section 2211 and a connecting section 2212 connected to each other, and the reinforcing section 2211 and / or the connecting section 2212 are connected to the fixing part 222. The reinforcing section 2211 and the connecting section 2212 are arranged at an angle, and the reinforcing section 2211 and the connecting section 2212 are respectively at least partially attached to the outer wall of the box body 110.

[0081] To elaborate further, the fitting of the connecting section 2212 with the housing body 110 achieves a tight fit between the reinforcing plate 220 and the housing structure 100. The reinforcing section 2211 and the connecting section 2212 are at least partially fitted to the outer wall of the housing body 110. This structural arrangement allows the reinforcing plate 220 to fully adapt to the outer surface of the housing body 110 during connection, further improving the reliability and stability of the connection. Furthermore, the design of the fixing part 222 allows the reinforcing structure 200 to be fixed in the required position, avoiding the risk of loosening due to vibration or impact during use.

[0082] It should be noted that the X direction in the figure can be considered as the first direction, while the Y direction can be considered as the second direction. In this embodiment, the connecting plate 210 extends relative to the reinforcing plate 220 along the first direction, while the reinforcing plate 220 extends relative to the connecting plate 210 along the second direction. This directional design facilitates the optimization of the response of the reinforcing structure 200 to the impact force from the box structure 100, thereby improving its receiving range. When the reinforcing structure 200 is connected to the box body 110, the impact force is transmitted from the box structure 100 through the outer wall of the box body 110, and then transmitted in the opposite direction along the second direction to the connecting plate 210. The connecting plate 210 decomposes and dissipates the impact force, thereby effectively reducing the damage caused by the impact to the structure.

[0083] Meanwhile, we suggest that in practical applications, the included angle between the reinforcing section 2211 and the connecting section 2212 can be adjusted or optimized according to different usage requirements. For example, the included angle can be flexibly set between 30° and 90° to cope with different mechanical requirements. Choosing a suitable included angle design will enable the reinforcing structure 200 to achieve the best dispersion effect and stability when encountering impacts from different directions, and effectively improve the durability of the overall structure.

[0084] In summary, this embodiment, through specific design of the reinforcing plate 220, enables the reinforcing structure 200 to fully utilize its area advantage when receiving impact forces from the housing structure 100. Furthermore, the reasonable layout of the reinforcing plate 220 significantly enhances the bonding quality between connecting components, thereby improving the overall performance and safety of the equipment.

[0085] In one embodiment, the fixing part 222 bends the edge of the positioning part 221 toward the side away from the box body 110. The connection between the self-positioning part 221 and the fixing part 222 adopts a bent structure, which not only improves the rigidity of the structure, but also makes the extension direction of the bent structure form an angle with the second direction. By changing the force transmission path, the impact force can be more effectively dispersed when the reinforcing structure 200 is subjected to external force, thereby reducing stress concentration in the second direction.

[0086] By forming a bending structure, a certain amount of mechanical support can be generated at the bend. When an external impact force is applied to the reinforcing structure 200, the bending structure helps to transform the impact force into a more dispersed stress, thereby resisting deformation. Specifically, the presence of the bending structure makes the change in the direction of force more consistent with the yield characteristics of the material, which can effectively delay the failure of the material and ensure the durability and safety of the entire box structure 100 under high-strength conditions.

[0087] Furthermore, the reinforcing plate 220 is recessed in a direction away from the box body 110 with at least one third reinforcing groove 22111, and the extension direction of the third reinforcing groove 22111 is parallel to the second direction.

[0088] By incorporating a third reinforcing groove 22111, the stress distribution characteristics of the reinforcing plate 220 can be altered. When subjected to external forces, the reinforcing groove effectively guides the stress path, reducing potential damage caused by stress concentration. This design not only enhances the overall strength of the reinforcing plate 220 but also improves its toughness and resistance to deformation under vibration and impact, ensuring the equipment maintains excellent performance even under extreme operating conditions.

[0089] More importantly, the third reinforcing groove 22111 is recessed on the inner wall surface of the reinforcing plate 220 facing the connecting groove. This design direction allows the reinforcing plate 220 to provide sufficient strength without introducing excess material. The recessed groove design makes the entire reinforcing structure more compact, thereby effectively saving space and reducing the weight of the overall structure.

[0090] Meanwhile, the presence of the third reinforcing groove 22111 further enhances the longitudinal and transverse stiffness of the reinforcing plate 220. Combined with the parallel design in the second direction, the reinforcing plate 220 maintains good stability and durability under multi-directional stress, which can significantly extend the service life of the equipment and reduce the frequency of maintenance.

[0091] Furthermore, to achieve structural optimization under different application conditions, the number and specific shape of the third reinforcing groove 22111 can be adjusted according to actual design requirements. For example, the groove can be designed as one, two, or more, and the specific groove width and depth can also be set to intermediate values ​​according to load requirements to ensure the rationality and strength of the overall structure.

[0092] Furthermore, the battery housing 10 also includes at least one reinforcing member 400, which is spaced apart from the reinforcing structure 200 and is connected to the housing body 110 and the connecting edge 120.

[0093] In this embodiment, by further adding a reinforcing member 400 to connect the main body 110 and the connecting edge 120, the overall strength of the battery box 10 can be further improved. At the same time, since the reinforcing member 400 is spaced apart from the reinforcing structure 200, when the reinforcing member 400 needs to be disassembled and reassembled for maintenance, the reinforcing member 400 can be disassembled and replaced separately, thus reducing maintenance costs.

[0094] Specifically, see Figure 4 As shown, the reinforcing member 400 includes a first plate portion 410, a second plate portion 420 and a first intermediate portion 430. The first plate portion 410 is connected to the connecting edge 120, the second plate portion 420 is connected to the box body 110, and the first intermediate portion 430 is inclined from the first plate portion 410 toward the first plate portion 410 and connected to the second plate portion 420.

[0095] When manufacturing the reinforcing member 400 in this embodiment, the plate-shaped raw material is first stamped or bent to bend the first plate portion 410 and the second plate portion 420 at the first intermediate portion 430, so that the reinforcing member 400 presents a stepped structure. This structural design reasonably distributes stress and improves the resistance performance when subjected to external forces.

[0096] In some embodiments, the first plate portion 410 is connected to the connecting edge 120, and the second plate portion 420 is connected to the box body 110. The first intermediate portion 430 acts as a bridge between the two, serving to connect and distribute stress. This connection design not only ensures a tight fit between the reinforcing member 400 and the box structure 100, but also ensures that when the entire structure is subjected to external forces, pressure can be effectively transmitted and dispersed, thereby reducing the risk of damage due to stress concentration.

[0097] Furthermore, the reinforcing member 400 is recessed with at least one reinforcing groove in the direction away from the box structure 100. This design aims to significantly enhance the load-bearing capacity of the reinforcing member 400 by optimizing its structural form.

[0098] In this embodiment, by forming at least one reinforcing groove on the reinforcing member 400, not only can the strength of the reinforcing member 400 at the reinforcing groove be improved, but it can also effectively withstand impact forces along or perpendicular to the extension direction of the reinforcing groove. Due to the presence of the reinforcing groove, the reinforcing member 400 can distribute stress more evenly when subjected to external loads, thereby reducing local stress concentration and improving the reliability of the overall structure.

[0099] Furthermore, the concave design of the reinforcing groove faces away from the housing structure 100, which significantly enhances the overall strength of the reinforcing member 400 while maintaining a relatively small thickness. This reinforcing groove structure design effectively increases material utilization efficiency while reducing overall weight, positively impacting the load-bearing capacity and ease of movement of the battery housing 10. Through this design, the overall strength of the reinforcing structure 200 is improved, further enhancing the safety and reliability of the battery housing 10.

[0100] The use of stamping to manufacture the reinforcing part 400 optimizes manufacturing efficiency and cost. This method allows for direct stamping of flat sheet metal, forming corresponding reinforcing grooves on the reinforcing part 400. This direct stamping process not only reduces processing difficulty but also significantly saves on cost and time. Because multiple processes can be combined in a single forming operation, production efficiency is improved, while reducing the accumulation of errors that may arise from subsequent processing, ensuring the dimensional accuracy and consistency of the reinforcing part 400.

[0101] Specifically, the reinforcing member 400 includes a first reinforcing groove 411 and a second reinforcing groove 421. The extension direction of the first reinforcing groove 411 and the extension direction of the second reinforcing groove 421 are arranged at an angle, and / or the first reinforcing groove 411 and the second reinforcing groove 421 are spaced apart.

[0102] By providing reinforcing grooves at angles to each other on the reinforcing member 400, its overall impact resistance can be significantly improved. Specifically, the relative angle between the first reinforcing groove 411 and the second reinforcing groove 421 can create an interactive effect, allowing the externally applied impact force to be more evenly distributed on the reinforcing member 400, thereby reducing local stress concentration and improving the overall structural durability.

[0103] In one embodiment, the first reinforcing groove 411 and the second reinforcing groove 421 can be arranged perpendicularly to each other. This configuration can more effectively enhance the resistance of the reinforcing member 400 to multi-directional impacts. Therefore, the reinforcing member 400 can not only withstand forces applied along the impact direction, but also effectively resist impacts from multiple directions, further enhancing its overall performance. In other embodiments, the included angle between the first reinforcing groove 411 and the second reinforcing groove 421 can also be between 0 and 90°, specifically determined according to the design requirements of the reinforcing member 400, and is not uniquely limited here.

[0104] Furthermore, by alternating the first reinforcing groove 411 and the second reinforcing groove 421, the uniformity of the overall impact resistance of the reinforcing member 400 can be improved. This alternation helps ensure the uniform distribution of the two types of reinforcing grooves on the surface of the reinforcing member 400, thereby enabling the structure to distribute stress more evenly when subjected to external loads. This uniform distribution not only improves the overall strength of the reinforcing member 400 but also enhances its application flexibility under different working conditions, making it more reliable in actual operation.

[0105] In some embodiments, the first reinforcing groove 411 and the second reinforcing groove 421 can also be arranged crosswise, which makes the structure of the reinforcing member 400 more compact. Through the crosswise arrangement, the interaction between the reinforcing grooves can form a more complex support structure, thereby improving the adaptability of the reinforcing member 400 in complex working environments. At the same time, such a design can effectively reduce the amount of material used and reduce the overall weight, thus providing better space utilization for the overall design of the battery box 10, and also conforming to the trend of lightweight design.

[0106] Specifically, the first reinforcing groove 411 is provided on the first plate portion 410, and the second reinforcing groove 421 is provided on the second plate portion 420.

[0107] In manufacturing the reinforcing member 400 of this embodiment, the plate-shaped raw material is first stamped or bent to form the first reinforcing groove 411 and the second reinforcing groove 421. This process can significantly improve the mechanical properties of the reinforcing member 400, enhancing the overall rigidity and load-bearing capacity by forming reinforcing grooves. Next, the first plate portion 410 and the second plate portion 420 are bent at the first intermediate portion 430, giving the reinforcing member 400 a stepped structure. This structural design rationally distributes stress and improves its resistance to external forces.

[0108] Further, see Figure 1 and Figure 2 As shown, there are multiple reinforcing structures 200 and multiple reinforcing members 400, and these multiple reinforcing structures 200 and multiple reinforcing members 400 are alternately arranged along the edge of the box structure 100.

[0109] Specifically, by designing the layout of the reinforcing structures 200 and the reinforcing members 400, multiple reinforcing structures 200 and reinforcing members 400 are alternately arranged along the extension direction of the edge of the housing structure 100. The main purpose is to ensure that the reinforcing structures 200 can achieve uniform stress distribution at the edge of the housing structure 100. This design can significantly improve the structural stability of the battery housing 10, making the stress distribution of the housing structure 100 under external loads more reasonable and effectively reducing the risk of deformation or damage caused by local stress concentration.

[0110] It should be noted that direction D in the figure can be the extension direction of the edge of the body structure. In some embodiments, the layout of the reinforcing structure 200 can be adjusted according to actual design requirements. For example, two reinforcing structures 200 can be arranged sequentially, and a reinforcement member 400 can be placed at the next installation position to form an alternating reinforcement layout. Such design continuity allows the various reinforcing structures 200 and reinforcement members 400 to form a good synergistic effect, jointly bearing the externally applied load, thereby enhancing the compressive strength of the entire box structure 100.

[0111] Furthermore, to adapt to different application scenarios and the specific design requirements of the battery housing 10, the layout of the reinforcing structure 200 and the reinforcing member 400 is not limited to a fixed form. In other embodiments, the layout of the reinforcing structure 200 and the reinforcing member 400 can be reasonably adjusted according to the specific stress analysis results and the usage environment of the battery housing 10. For example, the density of the reinforcing structure 200 can be increased in specific areas to cope with higher stress requirements, or the number of reinforcing members 400 in specific areas can be reduced to reduce the overall weight, thereby making the design of the battery housing 10 more flexible. Therefore, adopting this adjustable layout method can not only meet different design requirements, but also optimize the strength and reliability of the housing.

[0112] Through the above design, the alternating arrangement of multiple reinforcing structures 200 and supplementary reinforcements 400 not only effectively improves the overall strength and stability of the battery housing 10, but also facilitates subsequent maintenance and repair. Users can more quickly identify damaged parts and perform partial replacement or adjustment without disassembling the entire reinforcing structure 200, greatly improving maintenance efficiency and reducing maintenance costs. This flexibility allows the battery housing 10 to maintain efficient and reliable performance in different operating environments, providing strong protection for the safe use of the battery system.

[0113] In this embodiment, the materials selected for the reinforcing structure 200 and the reinforcing member 400 are HC420 / 780DP, based on their excellent mechanical properties and superior toughness. HC420 / 780DP is a duplex steel material with high strength and formability, suitable for use under complex loading conditions, and can effectively meet the functional requirements of the reinforcing structure 200 and the reinforcing member 400.

[0114] The key properties of this material include excellent tensile strength, good corrosion resistance, and outstanding weldability. These properties are particularly important in the practical application of the reinforced structure 200 and the reinforcing member 400. In actual design, the reinforced structure 200 and the reinforcing member 400 may be subjected to various stresses such as impact loads and fatigue loads. Therefore, selecting HC420 / 780DP as the material can significantly improve the durability of the structure and ensure its stable performance during long-term use.

[0115] Furthermore, the formability of the HC420 / 780DP provides greater design freedom for the manufacturing processes of the reinforcing structure 200 and the reinforcing member 400. Through appropriate forming processes, complex geometric designs can be achieved to meet functional requirements under specific application conditions. When the reinforcing structure 200 and the reinforcing member 400 achieve more rational geometric shapes in their design, their contact area and bonding strength are expected to be improved, thereby further enhancing the safety and reliability of the overall structure.

[0116] In practical implementation, the thickness, width, and other parameters of the reinforcing structure 200 and the reinforcing member 400 can be optimized according to the requirements of the application environment. For example, the thickness of the reinforcing structure 200 can be set between 2mm and 8mm to ensure its stability during load-bearing, while the thickness of the reinforcing member 400 can also be adjusted according to the specific load conditions of the application, such as being set to between mm and mm. Designs within this range can effectively reduce the weight of the overall structure while ensuring load-bearing capacity, thereby improving work efficiency.

[0117] In one embodiment, the box body 110 has a first connecting groove 111, the reinforcing member 400 is at least partially accommodated in the first connecting groove 111, and the reinforcing member 400 is connected to the inner wall of the first connecting groove 111.

[0118] By providing a first connecting groove 111 on the housing body 110, the reinforcing member 400 can be accurately positioned through the first connecting groove 111. The key purpose of introducing this structural design is to improve the ease and accuracy of installation of the reinforcing member 400 during the assembly process, and at the same time, to make the overall structure more compact after the reinforcing member 400 is connected to the housing structure 100.

[0119] Specifically, due to the presence of the first connecting groove 111, the reinforcing member 400 can slide more smoothly into the first connecting groove 111 during installation, which not only reduces the difficulty of manual installation but also avoids errors caused by human operation, ensuring the accuracy of the installation position. After installation, the reinforcing member 400 is then fixedly connected to the connecting edge 120, a process that further enhances the stability of the entire battery box 10. When the reinforcing member 400 is fully integrated with the box structure 100, the overall strength is significantly enhanced, ensuring that each component can maintain stable load and performance over a long period of time.

[0120] Furthermore, by optimizing the design of the connecting groove, such as considering different groove depths and widths, or using a combination of various materials, the load-bearing capacity and adaptability of the connecting groove can be further improved. The size and shape of the first connecting groove 111 can be adjusted according to actual needs, depending on the specifications of the selected reinforcing member 400, and are not limited to a single specification here.

[0121] Further, see Figures 1 to 3 As shown, the box body 110 has a second connecting groove 112, which is spaced apart from the first connecting groove 111. The reinforcing plate 220 is at least partially housed within the first connecting groove 111 and connected to the inner wall of the first connecting groove 111. By providing the first connecting groove 111 and the second connecting groove 112 on the box structure 100, the reinforcing structure 200 and the reinforcing member 400 can be accurately positioned through these two grooves respectively. The key purpose of introducing this structural design is to improve the ease and accuracy of installation of the reinforcing structure 200 and the reinforcing member 400 during assembly. Specifically, due to the presence of the first connecting groove 111 and the second connecting groove 112, the reinforcing structure 200 and the reinforcing member 400 can slide more smoothly into the corresponding grooves during installation, which not only reduces the difficulty of manual installation but also avoids errors caused by human operation, ensuring the accuracy of the installation position.

[0122] After installation, the reinforcing structure 200 and the reinforcing member 400 are fixedly connected to the housing structure 100, which further enhances the stability of the entire assembly structure. When the reinforcing structure 200 and the reinforcing member 400 are fully integrated with the housing structure 100, the overall strength is significantly enhanced, ensuring that each component can maintain stable load and performance over a long period of time, while also making the overall structure of the battery housing 10 more compact.

[0123] During implementation, the placement of the first connecting groove 111 and the second connecting groove 112 ensures that the installation of the reinforcing structure 200 and the reinforcing member 400 does not affect the utilization of the battery pack space. When the reinforcing structure 200 and the reinforcing member 400 are connected to the housing structure 100, the connecting plate 210 is fixedly connected to the connecting edge 120, while the reinforcing plate 220 provides positioning support for the installation of the reinforcing structure 200 through the second connecting groove 112. This design ensures the stability and safety of the reinforcing structure 200 under stress. At the same time, the reinforcing member 400, through its connection with the inner wall of the first connecting groove 111 and the connecting edge 120, forms a more robust overall structure.

[0124] By connecting the reinforcing structure 200 to both the housing body 110 and the connecting edge 120, this design significantly enhances the strength between the two. This not only improves the overall mechanical properties of the battery housing 10 but also strengthens its fixation to the battery pack. Specifically, the design of the reinforcing structure 200 effectively disperses the tensile and compressive forces applied to the housing structure 100, especially when the battery housing 10 operates in a vibrating environment, effectively improving its durability and stability.

[0125] In this embodiment, by providing a recessed first connecting groove 111 and a second connecting groove 112 on the outer wall of the box body 110, the strength of the box body 110 at the edge can be effectively improved. This design is mainly based on the principles of material mechanics and structural mechanics, and by strengthening the edge of the box body, the stability and durability of the overall structure are enhanced.

[0126] Furthermore, the second connecting groove 112 includes at least two walls, and at least one set of adjacent pairs of walls are arranged at an included angle. This design cleverly increases the contact area between the reinforcing structure 200 and the second connecting groove 112, enabling the reinforcing structure 200 to effectively withstand impact forces from at least two directions when receiving impact forces transmitted from the housing structure 100. This multi-directional force bearing capacity is achieved through the transmission and decomposition of forces from the reinforcing structure 200 to the second connecting groove 112, resulting in a significant improvement in the bonding strength between the reinforcing structure 200 and the housing structure 100, while also enhancing the force decomposition performance of the reinforcing structure 200.

[0127] Specifically, because the second connecting groove 112 has multiple walls, the angled design of these walls allows for uniform distribution of force, reducing structural damage that may be caused by localized stress. When the box structure 100 is subjected to external impact, the impact force is transmitted to the multiple walls of the second connecting groove 112 through the reinforcing structure 200. This multi-directional force distribution not only improves the overall stability of the structure but also effectively reduces stress concentration, thereby extending the service life of the reinforcing structure 200 and the box structure 100. To further enhance the connection strength, reinforcing ribs or other reinforcement designs can be added to the walls of the second connecting groove 112. This will increase the load-bearing area and improve rigidity, further enhancing the overall load-bearing capacity.

[0128] Furthermore, the design of the second connecting groove 112 also offers practical advantages in terms of positioning and foolproof installation. When installing the reinforcing structure 200, the wall surface of the second connecting groove 112 can precisely position the reinforcing structure 200, effectively preventing functional failures and safety hazards caused by installation errors. Simultaneously, the foolproof installation function reduces human error during assembly, ensuring that the reinforcing structure 200 can reliably connect to the housing structure 100 in practical applications, thereby improving product assembly efficiency and stability.

[0129] Considering that the design of the second connecting groove 112 can adapt to different working conditions and needs in practical applications, it is recommended to adjust the number of walls and the included angle of the second connecting groove 112 according to the specific application scenario. For example, increasing the number of walls can further increase its contact area and enhance the load-bearing capacity of the reinforcing structure 200, while adjusting the included angle can better adapt to the direction and type of transmitted force in specific environments. Such flexibility allows the design to find suitable solutions in various engineering applications, ensuring the structural integrity and high efficiency of the second connecting groove 112.

[0130] See Figure 3 and Figure 5 As shown, in one embodiment, the second connecting groove 112 includes a first wall surface 1121 and a second wall surface 1122, the first wall surface 1121 and the second wall surface 1122 are connected, and the first wall surface 1121 and the second wall surface 1122 are arranged at an angle; the reinforcing plate 220 is fitted and connected to the first wall surface 1121 and / or the second wall surface 1122. The advantage of this design is that by providing multiple contact surfaces, the force-bearing area between the reinforcing structure 200 and the second connecting groove 112 can be increased, so that when it receives the impact force from the box structure 100, it can more effectively disperse and transmit these forces without causing local stress concentration.

[0131] To elaborate further, when the reinforcing plate 220 is attached to the second wall surface 1122, it achieves a tight fit with the second connecting groove 112. Simultaneously, the reinforcing plate 220 can also be at least partially attached to the first wall surface 1121. This structural arrangement allows the reinforcing structure 200 to fully utilize the multi-wall design of the second connecting groove 112 during the connection process, further improving the reliability and stability of the connection. Furthermore, the design of the fixing part 222 allows the reinforcing structure 200 to be fixed in the required position, avoiding the risk of loosening due to vibration or impact during use.

[0132] It should be noted that the X direction in the figure can be considered as the first direction, while the Y direction can be considered as the second direction. In this embodiment, the connecting plate 210 extends relative to the reinforcing plate 220 along the first direction, while the reinforcing plate 220 extends relative to the connecting plate 210 along the second direction. This directional design facilitates the optimization of the response of the reinforcing structure 200 to the impact force from the box structure 100, thereby improving its receiving range. When the reinforcing structure 200 is connected to the second connecting groove 112, the impact force is transmitted from the box structure 100 through the second connecting groove 112, and then transmitted in the opposite direction along the second direction to the connecting plate 210. The connecting plate 210 decomposes and dissipates the impact force, thereby effectively reducing the damage caused by the impact to the structure.

[0133] Based on the above design, the angled reinforcing section 2211 and connecting section 2212 can form a good fit with the wall of the second connecting groove 112 during the connection process. This tight fit not only increases the contact area between the reinforcing structure 200 and the second connecting groove 112, but also significantly improves the connection strength between the reinforcing structure 200 and the box structure 100, ensuring the stability and reliability of the connection.

[0134] Meanwhile, we suggest that in practical applications, the wall angle can be adjusted or optimized according to different usage requirements. For example, the angle can be flexibly set between 30° and 90° to cope with different mechanical requirements. Choosing a suitable angle design will enable the reinforced structure 200 to achieve the best dispersion effect and stability when encountering impacts from different directions, and effectively improve the durability of the overall structure.

[0135] In summary, this embodiment, through the angled design and multi-wall structure of the second connecting groove 112, enables the reinforcing structure 200 to fully utilize its area of ​​impact when receiving impact forces from the housing structure 100. Furthermore, the rational layout of the reinforcing plates 220 significantly enhances the bonding quality between connecting components, thereby improving the overall performance and safety of the equipment. In this embodiment, the second connecting groove 112 can be designed as a V-groove or a trapezoidal groove. Specifically, the V-groove has better mechanical properties; its narrow bottom and gradually expanding walls effectively concentrate and transmit externally applied forces, achieving excellent clamping effects. The trapezoidal groove has a wider contact surface, providing a more uniform stress distribution under load, which is crucial for improving structural stability and load-bearing capacity. Choosing a V-groove or a trapezoidal groove as the second connecting groove 112 not only enhances the bonding strength between the reinforcing structure 200 and the housing structure 100 but also allows for optimized design to meet mechanical requirements under different working conditions.

[0136] When the reinforcing plate 220 is connected to the second connecting groove 112, its function is to effectively disperse the impact force borne by the housing structure 100. Specifically, when the housing structure 100 is subjected to external impact, the reinforcing plate can disperse part of the impact energy in the first direction, thereby reducing the force in the second direction. In this way, the deformation of the housing structure 100 can be significantly reduced, the risk of damage to the battery cells can be reduced, and the purpose of protecting the battery pack can be achieved by reducing the force on the battery cells, thereby improving the safety and reliability of the equipment in actual operation.

[0137] To further enhance design flexibility, the geometric dimensions and shape parameters of the second connecting groove 112 can be optimized according to the specific application environment. For example, the angle of the V-groove can be selected within the range of degrees, while the bottom width and height of the trapezoidal groove can be appropriately adjusted according to the specific requirements of the reinforcing structure 200. It should be noted that the selection of the included angle of the V-groove and the dimensions of the trapezoidal groove will directly affect the transmission and dispersion efficiency of impact force; appropriate parameter settings will improve the overall performance of the structure to a certain extent.

[0138] In one embodiment, the connecting edge 120 is provided with a first connecting hole 131, the connecting plate 210 is provided with a second connecting hole 2112 corresponding to the first connecting hole 131, and the lifting lug 300 is connected to the first connecting hole 131 and the second connecting hole 2112 respectively.

[0139] In this embodiment, by setting a first connecting hole 131 on the connecting edge 120 of the housing structure 100 and a second connecting hole 2112 on the connecting plate 210 of the reinforcing structure 200, not only is the effective installation and positioning of the lifting lug 300 achieved, but the internal space of the lifting lug 300 is also ensured to be unobstructed after connection. This design allows the lifting lug 300 to flexibly connect to external fasteners, such as bolts or pins, improving the convenience of assembly and the efficiency of maintenance.

[0140] Furthermore, the material selection for the lifting lug 300 has a significant impact on its performance and reliability. Specifically, the lifting lug 300 can be made of either SWRCH10A or Q355 steel. SWRCH10A is a commonly used alloy steel with good strength and toughness, suitable for applications subject to heavy loads. During manufacturing, this material can undergo heat treatment to improve its hardness and wear resistance, thus maintaining good mechanical properties during repeated use, making it suitable for use in dynamic environments such as the battery housing 10.

[0141] On the other hand, Q355 is a low-alloy high-strength structural steel with good plasticity and weldability. Therefore, welding at the reinforced structure 200 is relatively convenient while maintaining high strength and durability. Q355 has a high strength grade, making it suitable for bearing large static and dynamic loads, such as mechanical handling and vibration. By using Q355 material, the lifting lug 300 can provide better structural stability and load-bearing capacity, which is beneficial to improving the overall strength and safety of the battery box 10.

[0142] In specific implementations, the selection of appropriate materials depends on the actual application requirements and design objectives. If higher tensile strength is required, SWRCH10A is preferred; while if weldability and ease of installation are more important, Q355 would be a better choice. A reasonable combination of these materials not only improves the mechanical properties of the structure but also reduces safety hazards caused by improper assembly, ensuring the reliability of the equipment during operation.

[0143] In this embodiment, both the first bending groove 2111 and the second connecting hole 2112 are provided on the first connecting portion 211. This design not only optimizes the functionality of the connecting plate 210 but also improves its structural performance. Specifically, the inner wall of the first bending groove 2111 is preferably recessed in a direction away from the first connecting hole 131. This recessed design enables smoother stress transmission and effectively prevents stress concentration under stress, thereby improving the overall strength and durability of the first connecting portion 211.

[0144] With this design, the second connecting hole 2112 is spaced apart from the first connecting hole 131. This spacing has significant practical value; compared to fitting the first connecting hole 131 and the second connecting hole 2112 flush, the spacing provides more precise positioning during the installation of the lifting lug 300. This is particularly important in practical applications because precise positioning not only improves assembly efficiency but also effectively reduces the risk of damage caused by improper installation. Specifically, the spacing between the first connecting hole 131 and the second connecting hole 2112 prevents the lifting lug 300 from directly contacting the connecting plate 210 during installation, thereby reducing potential wear and stress concentration.

[0145] In some embodiments, the connection between the reinforcing structure 200 and the housing structure 100 is welding. Welding, as an effective connection method, not only provides high connection strength but also forms stable load support in the overall structure. Specifically, in a preferred embodiment, the location of the weld point is crucial; the weld point is located in the contact area between the reinforcing structure 200 and the housing structure 100. The design of this contact area takes into account the bending structures such as reinforcing grooves and reinforcing channels provided on the reinforcing structure 200. Since these structures can cause the components to separate from the housing structure 100 at specific locations under stress, the weld point is preferably located on the outside of the groove, and spot welding can be used to connect and fix the reinforcing structure 200 and the housing structure 100.

[0146] This arrangement effectively enhances the bond strength between the reinforcing structure 200 and the housing structure 100. While the weld points ensure optimal connection, the edges of the bent structure typically provide a wider contact surface, offering a good foundation for weld fusion and bonding. Furthermore, because welding occurs at the edges of the bent structure, the reinforcing structure 200 can be evenly stressed after welding, reducing potential problems caused by stress concentration and thus enhancing the overall structural safety and durability.

[0147] Of course, in other embodiments, the reinforcing structure 200 and the housing structure 100 can also be connected by riveting, snap-fitting, or other methods. Riveting, as a traditional mechanical connection method, has the advantage of simple processing while maintaining good strength and toughness in specific designs. Riveting can adapt to the connection of different materials and is more convenient than welding in situations requiring frequent disassembly or maintenance. Furthermore, snap-fitting allows for rapid assembly, improving production efficiency and reducing labor costs for the reinforcing structure 200 and housing structure 100. The design of snap-fitting can also be adjusted according to actual usage requirements, such as using pins or latches, to achieve a combination of standardization and flexibility.

[0148] The present invention also provides a battery pack, which includes the battery housing 10 and battery cells as described in any of the above embodiments, with the battery cells disposed inside the battery housing 10.

[0149] In this embodiment of the battery pack, the battery housing 10 adopts the structure described in any of the above embodiments. By setting a split reinforcing structure 200, the battery housing 10 is effectively strengthened. This design allows for independent installation and reinforcement of specific parts of the housing structure 100 that require reinforcement. This unique split design has significant advantages over the traditional one-piece battery housing 10.

[0150] First, the split-type reinforcing structure 200 allows for targeted reinforcement of different parts of the battery pack 10 according to specific usage requirements. This means that during the battery pack production process, the areas to be reinforced and the materials used can be freely selected based on actual strength requirements, thus maintaining the lightweight design of the pack without compromising safety.

[0151] Secondly, this structural design also supports independent maintenance and replacement. If a certain area is damaged due to external force or long-term use, the user only needs to replace the reinforcing structure 200 of that part, without having to replace the entire battery pack 10. This flexible maintenance method can reduce the user's operating costs and improve the serviceability and economy of the battery pack.

[0152] Furthermore, due to the independence of the reinforced structure 200, the manufacturer can configure the production line more flexibly when designing and manufacturing the battery box 10, without being limited to a specific overall box structure, which enables modularization in the production process and improves production efficiency.

[0153] This utility model also provides an electrical device, which includes an electrical device and a battery pack as described in any of the above embodiments; the battery pack is used to supply power to the electrical device.

[0154] In the electrical equipment of this embodiment, the battery housing 10 within the battery pack employs a split-structure reinforcement structure 200. This design allows for independent reinforcement of different parts of the housing structure 100, especially in areas requiring reinforcement. This split design offers significant advantages over the monolithic battery housing 10 of conventional technologies. By allowing independent reinforcement in specific areas, manufacturers can more flexibly adjust the strength distribution of the battery housing 10 to cope with different operating environments and external pressures. The split-structure reinforcement structure 200 not only simplifies the production and maintenance process but also supports efficient operation during rapid assembly and replacement. Specifically, this design allows users to replace only the relevant reinforcement structure 200 when a certain area needs replacement due to external force damage, without replacing the entire battery housing 10. This flexible maintenance method not only reduces maintenance costs but also extends the battery pack's lifespan and improves the overall economic efficiency of the battery pack.

[0155] It should be noted that the application range of this electrical equipment is extremely wide, including but not limited to electric vehicles, electric engineering vehicles, etc. These devices have extremely high requirements for the reliability and durability of the battery pack during operation. The split-type battery box 10 and its internal reinforcing structure 200 can effectively cope with various environments and operating conditions, such as high temperature, low temperature, and vibration and impact under dynamic operating conditions.

[0156] Furthermore, the integrated design of the battery pack and the electrical device ensures efficient power transmission and stable output. During the process of the battery pack supplying power to the device, the design adapts to different power demands and operating environments, allowing adjustments to be made based on the power and current requirements of the device, ensuring safety and stability during operation.

[0157] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0158] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0159] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0160] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0161] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A battery housing (10), characterized in that, include: The box structure (100) includes the box body (110) and the connecting edge (120); Multiple reinforcing structures (200) are provided, each including a connecting plate (210) and a reinforcing plate (220). The connecting plate (210) is connected to the connecting edge (120) and extends along a first direction. The reinforcing plate (220) is connected between the connecting plate (210) and the box body (110) and extends along a second direction. The first direction and the second direction are set at an angle. Multiple lifting lugs (300) are provided, which pass through the connecting plate (210) and the connecting edge (120).

2. The battery housing (10) according to claim 1, characterized in that, The connecting plate (210) is recessed in at least one bending groove in a direction away from the connecting edge (120).

3. The battery housing (10) according to claim 2, characterized in that, The connecting plate (210) has a first bending groove (2111) and a second bending groove (2121), the first bending groove (2111) and the second bending groove (2121) are spaced apart, and the extension direction of the first bending groove (2111) and / or the second bending groove (2121) is parallel to the first direction.

4. The battery housing (10) according to claim 3, characterized in that, The connecting plate (210) includes a first connecting part (211), a second connecting part (212), and a second intermediate part (213). The second intermediate part (213) is connected to the first connecting part (211), and the second intermediate part (213) is bent from the first connecting part (211) to one side and connected to the second connecting part (212). The first bending groove (2111) is provided on the first connecting part (211), and the second bending groove (2121) is provided on the second connecting part (212). The second connecting part (212) is connected to the reinforcing plate (220).

5. The battery housing (10) according to claim 1, characterized in that, The reinforcing plate (220) includes a positioning part (221) and a fixing part (222) connected to each other. The positioning part (221) is attached to the outer wall of the box body (110), and the fixing part (222) is connected to the connecting plate (210). The positioning part (221) extends at least partially along the second direction.

6. The battery housing (10) according to claim 5, characterized in that, The positioning part (221) includes a reinforcing section (2211) and a connecting section (2212) connected to each other, and the reinforcing section (2211) and / or the connecting section (2212) are connected to the fixing part (222). The reinforcing section (2211) and the connecting section (2212) are arranged at an angle, and the reinforcing section (2211) and the connecting section (2212) are respectively at least partially attached to the outer wall of the box body (110).

7. The battery housing (10) according to claim 5, characterized in that, The fixing part (222) bends from the edge of the positioning part (221) toward the side away from the box body (110).

8. The battery housing (10) according to claim 5, characterized in that, The reinforcing plate (220) is recessed in a direction away from the box body (110) with at least one third reinforcing groove (22111), and the extension direction of the third reinforcing groove (22111) is parallel to the second direction.

9. The battery housing (10) according to claim 1, characterized in that, The battery housing (10) further includes at least one reinforcing member (400), which is spaced apart from the reinforcing structure (200) and is connected to the housing body (110) and the connecting edge (120).

10. The battery housing (10) according to claim 9, characterized in that, The reinforcing member (400) includes a first plate portion (410), a second plate portion (420), and a first intermediate portion (430). The first plate portion (410) is connected to the connecting edge (120), the second plate portion (420) is connected to the box body (110), and the first intermediate portion (430) is inclined from the first plate portion (410) toward the first plate portion (410) and connected to the second plate portion (420).

11. The battery housing (10) according to claim 10, characterized in that, The reinforcing member (400) is recessed in at least one reinforcing groove in a direction away from the box structure (100).

12. The battery housing (10) according to claim 11, characterized in that, The reinforcing member (400) includes a first reinforcing groove (411) and a second reinforcing groove (421), wherein the extension direction of the first reinforcing groove (411) is set at an angle to the extension direction of the second reinforcing groove (421), and / or the first reinforcing groove (411) and the second reinforcing groove (421) are spaced apart.

13. The battery housing (10) according to claim 12, characterized in that, The first reinforcing groove (411) is provided on the first plate portion (410), and the second reinforcing groove (421) is provided on the second plate portion (420).

14. The battery housing (10) according to any one of claims 9-13, characterized in that, The box body (110) has a first connecting groove (111), the reinforcing member (400) is at least partially housed in the first connecting groove (111), and the reinforcing member (400) is connected to the inner wall of the first connecting groove (111).

15. The battery housing (10) according to claim 14, characterized in that, The box body (110) is provided with a second connecting groove (112), and the second connecting groove (112) is spaced apart from the first connecting groove (111). The reinforcing plate (220) is at least partially housed in the first connecting groove (111) and connected to the inner wall of the first connecting groove (111).

16. The battery housing (10) according to any one of claims 1-13, characterized in that, The outer wall of the box body (110) is provided with a second connecting groove (112), and the reinforcing plate (220) is at least partially accommodated in the second connecting groove (112) and connected to the inner wall of the second connecting groove (112).

17. The battery housing (10) according to claim 16, characterized in that, The second connecting groove (112) includes at least two walls, and at least one set of two adjacent walls are arranged at an angle, and the reinforcing plate (220) is fitted to at least one of the walls.

18. The battery housing (10) according to claim 17, characterized in that, The second connecting groove (112) includes a first wall surface (1121) and a second wall surface (1122). The first wall surface (1121) is connected to the second wall surface (1122), and the first wall surface (1121) and the second wall surface (1122) are arranged at an angle. The reinforcing plate (220) is attached to the first wall surface (1121) and / or the second wall surface (1122).

19. The battery housing (10) according to any one of claims 1-13, characterized in that, The connecting edge (120) has a first connecting hole (131), the connecting plate (210) has a second connecting hole (2112) corresponding to the first connecting hole (131), and the lifting lug (300) is connected to the first connecting hole (131) and the second connecting hole (2112) respectively.

20. A battery pack, characterized in that, include: The battery housing (10) as described in any one of claims 1-19; as well as The battery cell is located inside the battery housing (10).

21. An electrical appliance, characterized in that, include: Electrical appliances; as well as The battery pack of claim 20 is used to supply power to the electrical device.

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