Battery apparatus and vehicle

Abstract

Embodiments of the present application relate to the technical field of batteries, and provide a battery apparatus and a vehicle. The battery apparatus comprises a case and battery cells. The case is provided with at least two boss structures, a first accommodating cavity is formed in each boss structure, and a plurality of battery cells are located in the first accommodating cavities. A clearance portion is formed between adjacent boss structures, and the clearance portion is used for providing clearance for a vehicle beam of a vehicle. By means of the design of the boss structures and the clearance portion, the battery apparatus can adapt to the complex shape of a vehicle chassis, thereby increasing the overall space utilization rate, and the battery apparatus can accommodate more battery cells or battery cells having a larger capacity, thereby increasing the volumetric energy density of the battery apparatus. By providing battery cells in each boss structure, the volumetric energy density of the battery apparatus can be increased, thereby improving the endurance capability of the vehicle.

Description

Battery devices and vehicles

[0001] This application claims priority to Chinese Patent Application No. 202510242497.6, filed on February 28, 2025, entitled "Battery Device and Vehicle", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of battery technology, and more particularly to a battery device and vehicle. Background Technology

[0003] In related technologies, the vehicle's battery pack is installed under the vehicle's chassis. The battery pack is connected to the vehicle beams to utilize the structural strength of the beams to protect the battery pack. The battery pack includes a housing that forms a receiving space for accommodating the batteries.

[0004] However, existing battery devices suffer from low volumetric energy density. Summary of the Invention

[0005] This application provides a battery device and a vehicle beam, which improves the volumetric energy density of the battery device and enhances the vehicle's range.

[0006] In a first aspect, embodiments of this application provide a battery device, the battery device comprising:

[0007] The box has at least two boss structures, each boss structure forming a first receiving cavity;

[0008] Multiple battery cells are located within the first receiving cavity;

[0009] Among them, a clearance section is formed between adjacent boss structures, which is used to avoid the vehicle beam.

[0010] In some embodiments of this application, the housing includes an interconnected tray and a cover, the cover having a boss structure.

[0011] In some embodiments of this application, the protruding end of the boss structure is located on the side of the cover away from the tray.

[0012] The first receiving cavity is formed on the side of the boss structure facing the tray.

[0013] In some embodiments of this application, there are multiple boss structures, which are spaced apart along a first direction.

[0014] Multiple battery cells form a first battery cell module, and the number of first battery cell modules is multiple.

[0015] The first receiving cavity contains at least one first cell module.

[0016] In some embodiments of this application, the battery device further includes an electrical connector that connects the first cell modules of two adjacent first receiving cavities.

[0017] In some embodiments of this application, the electrical connector has an electrical connection bend.

[0018] Along the first direction, the middle part of the electrical connector is bent away from the two ends of the electrical connector in a direction away from the cover, forming the electrical connector bend.

[0019] The electrical connection bends and clearance sections are provided correspondingly and are shaped to fit each other.

[0020] In some embodiments of this application, the electrical connector includes at least two conductive base portions, one end of each of the at least two conductive base portions is connected to the electrical connection bending portion, and the other end of each conductive base portion is connected to an adjacent first battery cell module.

[0021] In some embodiments of this application, the conductive substrate includes a conductive plate with a recessed portion, and the terminal post of the end cell of the first cell module is welded to the recessed portion.

[0022] In some embodiments of this application, the electrical connection bend includes a first segment, a second segment, and a third segment connected in sequence.

[0023] The first and third segments extend along the first direction, and the second segment extends along the second direction; the first and third segments are connected to the first battery cell module.

[0024] The first and second directions intersect.

[0025] In some embodiments of this application, the outer periphery of the electrical connection bend is wrapped with an insulating layer.

[0026] In some embodiments of this application, the electrical connector is a stamped part or a welded part.

[0027] In some embodiments of this application, the battery device further includes an insulating member disposed between the electrical connector and the first cell module, and the electrical connector is detachably connected to the insulating member.

[0028] In some embodiments of this application, the tray is formed with a second receiving cavity, the opening of which faces the cover.

[0029] The first and second receiving cavities of each boss structure are connected.

[0030] In some embodiments of this application, the battery device further includes a second cell module located in a second receiving cavity.

[0031] In some embodiments of this application, the pallet includes a mounting element for connecting the box body and the vehicle beam.

[0032] In some embodiments of this application, the mounting element includes a first flange disposed on at least one side of the tray along a second direction.

[0033] In some embodiments of this application, the tray is provided with a mounting groove, the first flange is provided with a first mounting hole, the groove opening of the mounting groove is away from the cover, the first mounting hole and the mounting groove are connected, and the first mounting hole is used for the first fastener to pass through.

[0034] In some embodiments of this application, there are multiple first flanges, which are spaced apart along the circumference of the housing.

[0035] In some embodiments of this application, the cover is provided with a clearance notch, and the first flange passes through the clearance notch to connect with the vehicle beam.

[0036] In some embodiments of this application, the mounting member further includes a second flange. Along the first direction, the second flange is disposed on at least one side of the tray. The second flange has a second mounting hole for a second fastener to pass through.

[0037] In some embodiments of this application, the avoidance part is an avoidance groove; the opening of the avoidance groove is directed toward the vehicle beam.

[0038] In some embodiments of this application, the tray and the cover are arranged along a third direction, and along a second direction, the clearance groove penetrates the cover, and the second direction and the third direction intersect.

[0039] In some embodiments of this application, the walls of the clearance groove have an incline.

[0040] In some embodiments of this application, the width of the clearance groove gradually increases along the direction from the bottom of the clearance groove to the opening of the clearance groove.

[0041] In some embodiments of this application, the width of the groove near the bottom of the clearance groove is the minimum width of the clearance groove, and the minimum width of the groove is greater than the width of the longitudinal beam of the vehicle.

[0042] In some embodiments of this application, the two surfaces of the cover at opposite ends are inclined along the second direction.

[0043] In some embodiments of this application, the width of the cover gradually decreases along the second direction along the third direction, and the second direction intersects with the third direction.

[0044] In some embodiments of this application, the cover is an injection molded part.

[0045] In some embodiments of this application, the cover has a box protrusion, and a third receiving cavity is formed on the side of the box protrusion near the tray. The third receiving cavity is connected to the first receiving cavity. The third receiving cavity is used to receive the power distribution module.

[0046] Secondly, embodiments of this application provide a vehicle, including:

[0047] Car beam;

[0048] The battery unit is connected to the vehicle beam; the clearance section of the battery unit is used to avoid the vehicle beam.

[0049] In some embodiments of this application, the vehicle beam includes a crossbeam extending along the width direction of the vehicle.

[0050] The crossbeam includes a first crossbeam and a second crossbeam, which are arranged opposite to each other along the length of the vehicle; the pallet includes at least two first flanges arranged opposite to each other, which are respectively connected to the first crossbeam and the second crossbeam.

[0051] In some embodiments of this application, the vehicle further includes a first fastener, a portion of which abuts against the side of the first flange away from the crossbeam, and a portion of the first fastener passes through the first flange and the crossbeam.

[0052] In some embodiments of this application, the vehicle beam includes a longitudinal beam extending along the length of the vehicle; at least a portion of the longitudinal beam is located in a clearance groove of the clearance portion of the battery device.

[0053] In some embodiments of this application, the vehicle beam further includes at least two mounting beams, which are located on both sides of the first crossbeam and the second crossbeam along the vehicle width direction and are respectively connected to the first crossbeam and the second crossbeam. The battery device tray includes at least two opposing second flanges, which are respectively connected to at least two mounting beams.

[0054] In some embodiments of this application, the vehicle further includes a second fastener, a portion of which abuts against the side of the mounting beam opposite to the second flange, and a portion of which passes through the second flange and the mounting beam.

[0055] In some embodiments of this application, there are multiple battery devices arranged sequentially along the length of the vehicle.

[0056] This application provides a battery device and a vehicle. The battery device includes a housing and battery cells. The housing has at least two boss structures, each boss structure forming a first receiving cavity, within which multiple battery cells are located. A clearance portion is formed between adjacent boss structures to avoid obstacles from vehicle beams. Through the design of the boss structures and clearance portions, the battery device can adapt to the complex shape of the vehicle chassis, thereby improving overall space utilization. The battery device can accommodate more or larger capacity battery cells, increasing the volumetric energy density of the battery device. By placing battery cells in each boss structure, the volumetric energy density of the battery device is improved, thus increasing the vehicle's range. Attached Figure Description

[0057] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0058] Figure 1 is a schematic diagram of the battery device and vehicle beam provided in an embodiment of this application;

[0059] Figure 2 is a schematic diagram of the battery device provided in an embodiment of this application;

[0060] Figure 3 is an enlarged view of region A in Figure 2;

[0061] Figure 4 is an enlarged view of region B in Figure 2;

[0062] Figure 5 is a schematic diagram of the structure of the battery device provided in the embodiment of this application;

[0063] Figure 6 is an enlarged view of region C in Figure 5;

[0064] Figure 7 is a schematic diagram of the structure of the battery device provided in the embodiment of this application;

[0065] Figure 8 is a schematic diagram of the connection between the crossbeam and the tray of the battery device provided in an embodiment of this application;

[0066] Figure 9 is a schematic diagram of the connection between the crossbeam and the tray of the battery device provided in an embodiment of this application;

[0067] Figure 10 is a schematic diagram of the structure in which adjacent first cell modules of the battery device provided in the embodiment of this application are connected by electrical connectors;

[0068] Figure 11 is a schematic diagram of the structure of the electrical connector of the battery device provided in the embodiment of this application.

[0069] Explanation of reference numerals in the attached drawings: 10: Battery assembly; 100: Housing; 100a: Boss structure; 100b: First receiving cavity; 100c: Second receiving cavity; 101: Tray; 1011: Mounting component; 102: Cover; 1021: Housing protrusion; 1021a: Third receiving cavity; 102a: Clearance portion; 104: Clearance notch; 200: Battery cell; 210: First battery cell module; 220: Second battery cell module; 230: Connector; 240: End cell; 300: Electrical connector; 310: Conductive base portion; 3 11: Conductive plate; 312: Recessed portion; 320: Electrical connection bend; 321: First section; 322: Second section; 323: Third section; 330: Insulating component; 410: Mounting groove; 420: First mounting hole; 430: First fastener; 440: First flange; 450: Second flange; 460: Second fastener; 470: Second mounting hole; 500: Vehicle beam; 510: Longitudinal beam; 530: Mounting beam; 540: Crossbeam; 550: First crossbeam; 560: Second crossbeam; 20: Vehicle.

[0070] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0071] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0072] In modern electric vehicle technology, energy replenishment methods include fast charging and battery swapping. Fast charging refers to charging the electric vehicle battery in a short time using high-power charging stations. Battery swapping refers to replenishing energy by replacing the vehicle's battery, rather than charging it.

[0073] In related technologies, vehicles powered by fast charging have rectangular battery packs, with a battery compartment designed into the vehicle chassis or body structure to house the battery pack. Brackets and fixing devices are used to install the battery pack within the battery compartment, ensuring that the battery does not move during vehicle operation.

[0074] However, rectangular battery devices may not be able to fit perfectly into irregular spaces in the vehicle chassis or body structure, resulting in low space utilization efficiency. This irregular space utilization may limit the total capacity of the battery, thus affecting the volumetric energy density.

[0075] In summary, existing battery devices suffer from low volumetric energy density.

[0076] Therefore, this application provides a battery device and a vehicle. The battery device includes a housing and battery cells. The housing has at least two boss structures, each boss structure forming a first receiving cavity, in which multiple battery cells are located. A clearance portion is formed between adjacent boss structures to avoid obstacles from vehicle beams. Through the design of the boss structures and clearance portions, the battery device can adapt to the complex shape of the vehicle chassis, thereby improving the overall space utilization. The battery device can accommodate more battery cells or larger capacity battery cells, increasing the volumetric energy density of the battery device. By placing battery cells in each boss structure, the volumetric energy density of the battery device is improved, thus increasing the vehicle's range.

[0077] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0078] In a first aspect, referring to FIG1, an embodiment of this application provides a vehicle 20, including:

[0079] 500mm beam;

[0080] The battery device 10 is connected to the vehicle beam 500; the clearance part 102a of the battery device 10 is used to avoid the vehicle beam 500.

[0081] For example, the beam 500 is the main load-bearing structure of the vehicle 20, responsible for supporting the weight of the vehicle 20, including the body, passengers, and cargo. The beam 500 provides the necessary rigidity and strength to ensure that the vehicle 20 maintains its structural integrity under various driving conditions.

[0082] The function of the battery device 10 is to store electrical energy for use by the electric motor and other electrical systems of the vehicle 20, so that the vehicle 20 can accelerate, decelerate and maintain speed.

[0083] By connecting the battery pack 10 to the vehicle beam 500, the available space under the chassis of the vehicle 20 can be maximized. This design avoids wasted space, allowing the vehicle 20 to accommodate more battery capacity within a limited space.

[0084] The obstacle avoidance section 102a is used to avoid the beams of the vehicle 20. The battery unit 10 can adapt to the complex shape of the chassis of the vehicle 20, thereby improving the overall space utilization.

[0085] As one possible implementation, the beam 500 includes a crossbeam 540 extending along the width direction of the vehicle 20.

[0086] The crossbeam 540 includes a first crossbeam 550 and a second crossbeam 560, which are arranged opposite to each other along the length direction of the vehicle 20. The tray 101 includes at least two first flanges 440 arranged opposite to each other, and the at least two first flanges 440 are respectively connected to the first crossbeam 550 and the second crossbeam 560. The length direction of the vehicle 20 is shown as X in FIG1. ​​The width direction of the vehicle 20 is shown as Y in FIG1.

[0087] For example, the battery unit 10 is designed to be located between the first crossbeam 550 and the second crossbeam 560. This layout utilizes the space between the crossbeams 540, allowing the battery unit 10 to be compactly integrated into the chassis of the vehicle 20. By placing the battery unit 10 between the crossbeams 540, designers can maximize the use of available space under the chassis, improving the energy density of the battery and the range of the vehicle 20.

[0088] Each first flange 440 is connected to the first crossbeam 550 and the second crossbeam 560, respectively. This connection method ensures that the pallet 101 can be securely mounted on the beam 500, providing the necessary support and stability.

[0089] As one possible implementation, the vehicle 20 also includes a first fastener 430, a portion of which abuts against the side of the first flange 440 away from the crossbeam 540, and a portion of which passes through the first flange 440 and the crossbeam 540.

[0090] For example, a first fastener 430 is used to secure a first flange 440 of the tray 101 to a crossbeam 540. The first fastener 430 includes a bolt, screw, or other type of mechanical fastener.

[0091] A portion of the first fastener 430 abuts against the side of the first flange 440 opposite to the crossbeam 540 to ensure that the fastener effectively secures the flange to the crossbeam 540 and prevents loosening. A portion of the first fastener 430 passes through both the first flange 440 and the crossbeam 540. This through-type structure provides a robust mechanical connection, ensuring that the pallet 101 remains stable during vehicle 20 operation.

[0092] As one possible implementation, the vehicle beam 500 includes a longitudinal beam 510 extending along the length of the vehicle 20; at least a portion of the longitudinal beam 510 is located in a clearance groove of the clearance portion 102a of the battery device 10.

[0093] The length direction of vehicle 20 is shown as X in Figure 1. The width direction of vehicle 20 is shown as Y in Figure 1.

[0094] For example, the longitudinal beam 510 is located in the clearance groove of the clearance portion 102a of the battery device 10. The clearance groove is used to accommodate the longitudinal beam 510, so that the battery device 10 can be seamlessly integrated with the chassis of the vehicle 20. This ensures a tight integration between the battery device 10 and the chassis of the vehicle 20, without affecting the structural function of the longitudinal beam 510.

[0095] As one possible implementation, the vehicle beam 500 further includes at least two mounting beams 530, which are located on both sides of the first crossbeam 550 and the second crossbeam 560 along the width direction of the vehicle 20 and are respectively connected to the first crossbeam 550 and the second crossbeam 560. The tray 101 includes at least two opposing second flanges 450, which are respectively connected to the at least two mounting beams 530.

[0096] For example, the mounting beam 530 provides additional structural support and stability, ensuring good rigidity and strength of the vehicle 20 during operation. The mounting beam 530 is positioned on both sides of the first crossbeam 550 and the second crossbeam 560 along the width direction of the vehicle 20, and connected to these two crossbeams respectively, to enhance the overall rigidity and load-bearing capacity of the vehicle beams.

[0097] Each second flange 450 is connected to at least two mounting beams 530. This connection method ensures that the pallet 101 can be securely mounted on the beam 500, providing the necessary support and stability.

[0098] As one possible implementation, the vehicle 20 also includes a second fastener 460, a portion of which abuts against the side of the mounting beam 530 opposite to the second flange 450, and a portion of which passes through the second flange 450 and the mounting beam 530.

[0099] For example, the second fastener 460 is used to secure the second flange 450 of the tray 101 to the mounting beam 530. The design of the second fastener 460 may include bolts, screws or other types of mechanical fasteners.

[0100] A portion of the second fastener 460 abuts against the side of the mounting beam 530 opposite to the second flange 450 to ensure that the fastener can effectively secure the flange to the mounting beam and prevent loosening.

[0101] As one feasible implementation, there are multiple battery devices 10, which are arranged sequentially along the length of the vehicle 20.

[0102] For example, by arranging multiple battery devices 10 sequentially along the length of the vehicle 20, the available space under the chassis can be maximized. This layout allows the battery system to be arranged more compactly, increasing the energy density of the vehicle 20. The sequential arrangement of multiple battery devices 10 can significantly increase the total capacity of the battery devices 10, thereby extending the driving range of the vehicle 20.

[0103] The battery device 10 functions to store electrical energy for use by the electric motor and other electrical systems of the vehicle 20. The battery device 10 will be described in detail below.

[0104] In a first aspect, referring to Figures 2 to 7, embodiments of this application provide a battery device 10, which includes:

[0105] The housing 100 has at least two boss structures 100a, each boss structure 100a forming a first receiving cavity 100b.

[0106] Multiple battery cells 200 are located within the first receiving cavity 100b;

[0107] Among them, a clearance portion 102a is formed between adjacent boss structures 100a, and the clearance portion 102a is used to avoid the vehicle beam 500 of the vehicle 20.

[0108] For example, the housing 100 of the battery device 10 is designed with at least two boss structures 100a. A boss structure 100a refers to a portion protruding outward from the basic plane of the housing 100. These boss structures 100a are used to accommodate the battery cell 200. Each boss structure 100a has a first receiving cavity 100b formed within it. The first receiving cavity 100b serves to mount and secure the battery cell 200. This design ensures the stability and safety of the battery cell 200 within the housing 100.

[0109] Cell 200 is the core component of battery device 10, responsible for storing and providing electrical energy.

[0110] A clearance portion 102a is formed between adjacent boss structures 100a. The clearance portion 102a is designed to avoid structures such as the vehicle beam 500 in the chassis of the vehicle 20. The vehicle beam 500 is an important load-bearing and structural component in the chassis of the vehicle 20, and the battery device 10 needs to be installed without affecting the function of the vehicle beam 500.

[0111] By arranging the cell 200 in each boss structure 100a, the battery pack 10 can utilize the available space under the chassis of the vehicle 20. This design allows the cells 200 to be flexibly arranged in irregular chassis structures, thereby maximizing space utilization and improving the overall volumetric energy density. Simultaneously, the cell 200 in each boss structure 100a can be considered an independent module. This modular design makes the production, maintenance, and replacement of the battery pack 10 more convenient. The modular design also simplifies the manufacturing process and improves production efficiency. Furthermore, the dispersed cell 200 layout helps improve thermal management. The cell 200 in each boss structure 100a can be independently designed for heat dissipation, reducing heat accumulation inside the battery pack, thereby improving battery safety and lifespan.

[0112] The battery device 10 provided in this application embodiment, through the design of the boss structure 100a and the clearance portion 102a, can better adapt to the complex shape of the vehicle 20 chassis. This flexible design allows the battery device 10 to fill irregular spaces more efficiently, thereby improving the overall space utilization. Through more efficient space utilization, the battery device 10 can accommodate more battery cells 200 or larger capacity battery cells 200, thereby directly improving the volumetric energy density of the battery device 10.

[0113] Meanwhile, the design of the avoidance section 102a allows the battery device 10 to avoid chassis structures such as the vehicle beam 500. This means that the battery device 10 can fit more closely to other parts of the chassis, reducing space waste caused by the chassis structure.

[0114] In addition, this design not only improves the energy density of the battery device 10, but also enhances the integration of the battery device 10 with the structure of the vehicle 20, reducing the impact on the overall design of the vehicle 20.

[0115] In one possible implementation, the housing 100 includes an interconnected tray 101 and a cover 102, the cover 102 having a boss structure 100a.

[0116] Exemplarily, tray 101 is the bottom structure of battery device 10, used to support and secure battery cells 200. Tray 101 needs to have strength and rigidity to withstand the weight of battery cells 200 and vibrations and impacts generated during vehicle 20 operation. Cover 102 is the top structure of battery device 10, used to cover and protect battery cells 200. Cover 102 has sealing properties to prevent water, dust, and other external contaminants from entering the interior of battery device 10. Tray 101 and cover 102 are interconnected to form a complete housing 100 structure. Tray 101 and cover 102 can be connected by bolts, snaps, or welding.

[0117] The combination of tray 101 and cover 102 provides a closed structure, enhancing the overall strength and rigidity of the battery assembly 10. This design effectively resists external impacts and vibrations, protecting the internal battery cells 200.

[0118] As one possible implementation, the protruding end of the boss structure 100a is located on the side of the cover 102 away from the tray 101.

[0119] The first receiving cavity 100b is formed on the side of the boss structure 100a facing the tray 101.

[0120] For example, the cover 102 is designed with a boss structure 100a, the protruding end of which is located on the top of the cover 102, i.e., on the side opposite to the tray 101. This design makes the cover 102 not just a plane, but has a certain three-dimensional structure. The first receiving cavity 100b is used to install and fix the battery cells 200, ensuring that they remain stable during the movement of the vehicle 20.

[0121] The design of the boss structure 100a allows for the formation of an additional space within the cover 102, namely a first receiving cavity 100b, for accommodating the battery cell 200, thereby effectively utilizing the space under the chassis of the vehicle 20 and increasing the volumetric energy density of the battery device 10.

[0122] As one feasible implementation, there are multiple boss structures 100a, which are spaced apart along the first direction.

[0123] Multiple battery cells 200 form a first battery cell module 210, and the number of first battery cell modules 210 is multiple, each including multiple battery cells.

[0124] The first receiving cavity 100b contains at least one first cell module 210.

[0125] For example, each boss structure 100a has a first receiving cavity 100b for mounting the first battery cell module 210. The design of multiple boss structures 100a allows the battery device 10 to flexibly adapt to the shape of the vehicle 20 chassis.

[0126] The first receiving cavity 100b of the multiple boss structures 100a is used to accommodate the first battery cell module 210. The design of each first receiving cavity 100b should ensure the stability and safety of the first battery cell module 210, preventing movement or damage during use. Each first battery cell module 210 corresponds one-to-one with a first receiving cavity 100b, ensuring that each first battery cell module 210 has dedicated space for fixation and protection.

[0127] For example, the design of the first receiving cavity 100b to receive at least one first cell module 210 can increase the battery capacity of the battery device 10 and improve the reliability and performance of the battery device 10.

[0128] For example, referring to the Y direction in FIG1, the spacing of the boss structure 100a allows for the formation of multiple independent spatial first receiving cavities 100b on the cover 102 for accommodating the first cell module 210. This design maximizes the use of the space between the cover 102 and the tray 101, thereby increasing the volumetric energy density of the battery device 10.

[0129] The spaced-apart boss structures 100a support a modular layout of the first cell module 210. Each boss structure 100a can accommodate an independent first cell module 210, and this modular design makes the production, maintenance, and replacement of the battery device 10 more convenient. The spacing and clearance portions 102a between the boss structures 100a can be used for ventilation and heat dissipation.

[0130] By providing multiple protrusion structures 100a at intervals within the battery assembly 10, the first cell module 210 can be evenly distributed throughout the entire battery assembly 10. This uniform distribution helps balance the weight of the battery assembly 10, preventing weight concentration on one side or in one area. The uniform weight distribution also helps lower the overall center of gravity of the vehicle 20. A lower center of gravity improves the stability of the vehicle 20, especially during cornering, acceleration, and braking, reducing the risk of rollover and overturning.

[0131] In one possible implementation, the tray 101 is formed with a second receiving cavity 100c, the opening of which faces the cover 102.

[0132] The first receiving cavity 100b of each boss structure 100a is connected to the second receiving cavity 100c.

[0133] As one possible implementation, the battery device 10 also includes a second cell module 220 located in the second receiving cavity 100c.

[0134] For example, the design of the second receiving cavity 100c allows the tray 101 to accommodate more second cell modules 220, thereby increasing the volumetric energy density of the battery device 10 to make full use of the space between the tray 101 and the cover 102.

[0135] For example, by connecting the various first receiving cavities 100b through the second receiving cavity 100c, an electrical connection can be achieved between the first cell module 210 and the second cell module 220. This integrated design simplifies the wiring and connection of the battery system and improves the overall efficiency and reliability of the battery device 10. The interconnected cavity design allows for efficient use of the space between the tray 101 and the cover 102, enabling the storage of more first cell modules 210 and second cell modules 220 without increasing the overall volume of the battery device 10.

[0136] For example, referring to the direction shown by Z in FIG1, the stacked first cell module 210 and second cell module 220 are designed to make full use of space in the vertical direction, so that the battery device 10 can accommodate more first cell module 210 and second cell module 220 without increasing the horizontal footprint, thereby improving the overall energy density. By distributing the first cell module 210 and second cell module 220 in different housing cavities, heat can be managed more effectively.

[0137] For example, a support plate is provided between the first cell module 210 and the second cell module 220. The support plate provides additional physical support between the first cell module 210 and the second cell module 220. This support helps maintain the stability of the cell and prevents displacement or damage under vibration or impact conditions. The support plate can act as a buffer layer to absorb and disperse vibrations and impacts caused by vehicle 20 travel or external impacts.

[0138] For example, the first battery cell module 210 includes a plurality of battery cells, which are arranged sequentially along the Y direction shown in FIG1, and adjacent battery cells are electrically connected by connecting pieces.

[0139] The second battery cell module 220 includes multiple battery cells, which are arranged sequentially along the Y direction shown in Figure 1, and adjacent battery cells are electrically connected by connecting pieces.

[0140] As one feasible implementation, the avoidance part 102a is an avoidance groove; the opening of the avoidance groove is directed toward the beam 500 of the vehicle 20.

[0141] For example, the clearance groove is a recessed structure in the battery device 10, with its opening facing the vehicle beam 500 of the vehicle 20, so that the battery device 10 can avoid the chassis structure such as the vehicle beam 500 during installation. The design of the clearance groove opening facing the vehicle beam 500 ensures that the battery device 10 can fit tightly against the chassis of the vehicle 20, while avoiding physical interference with the vehicle beam 500.

[0142] By designing clearance grooves, the battery unit 10 can adapt to the complex shape of the vehicle 20 chassis. At the same time, clearance grooves not only avoid direct contact with the vehicle beam 500, but also protect the battery unit 10 from vibrations and impacts from the vehicle beam 500 to a certain extent.

[0143] Meanwhile, the presence of the clearance slot simplifies the installation process of the battery unit 10. Installers can more easily place the battery unit 10 under the chassis of the vehicle 20 without modifying or making additional adjustments to the vehicle beam 500.

[0144] In one feasible implementation, the tray 101 and the cover 102 are arranged along a third direction, and along a second direction, the clearance groove passes through the cover 102, and the second direction and the third direction intersect.

[0145] For example, the second direction is shown as the X direction in FIG1, and the third direction is shown as the Z direction in FIG1. ​​By setting the clearance groove to extend through the cover 102 along the length direction of the vehicle 20, the battery device 10 can better adapt to the structure of the chassis of the vehicle 20. This design ensures that the battery device 10 can be installed without interfering with the vehicle beam 500, thereby not affecting the overall structural strength and function of the vehicle 20.

[0146] As one feasible implementation, there are multiple avoidance parts 102a. Along the Y direction shown in FIG1, multiple avoidance parts 102a are arranged at intervals, and multiple avoidance parts 102a are used to avoid multiple beams 500 of vehicle 20 in a one-to-one correspondence.

[0147] For example, by designing multiple clearance portions 102a, the battery device 10 can better adapt to the complex structure of the vehicle 20 chassis. This design allows the battery device 10 to be installed without interfering with fixed structures such as the vehicle beam 500. The presence of the clearance portions 102a allows the battery device 10 to fit more closely to the vehicle 20 chassis, maximizing the use of available space. This helps to improve the volumetric energy density of the battery device 10.

[0148] As one feasible implementation, the cover 102 is an injection molded part.

[0149] For example, the cover 102 is an injection-molded part manufactured by an injection molding process. The injection molding process can create complex three-dimensional shapes in a single manufacturing process. In this way, the cover 102 can form a plurality of boss structures 100a, and the first receiving cavity 100b of the boss structure 100a is used to receive the first battery cell module 210.

[0150] The injection molding process allows the cover 102 and the boss structure 100a to be manufactured as a single unit. This integrated design reduces the number of components, lowers assembly complexity, and improves the overall strength and rigidity of the structure.

[0151] As one feasible implementation, the walls of the clearance groove have an incline.

[0152] For example, when the cover 102 is manufactured by injection molding, the slope of the groove wall refers to the draft angle of the groove wall. The draft angle is a small angle set in the direction perpendicular to the parting surface in the injection molding process to facilitate mold removal. This ensures that the cover 102 and its boss structure 100a can be smoothly removed from the mold during the manufacturing process, reducing the risk of manufacturing defects and product damage.

[0153] As one feasible implementation, the width of the clearance groove gradually increases along the direction from the bottom of the clearance groove to the opening of the clearance groove.

[0154] For example, the gradually increasing groove width helps reduce friction and resistance during demolding. As the groove width increases, the contact area between the mold and the cover 102 gradually decreases, making it easier to remove the cover 102 from the mold and reducing the required demolding force. An easier demolding process means a shorter production cycle, thereby improving production efficiency. This not only reduces manufacturing costs but also increases output.

[0155] Meanwhile, by optimizing the demolding process, the surface quality and dimensional accuracy of the cover 102 were improved. Reduced stress and deformation risks mean the final product better meets design specifications, reducing the scrap rate.

[0156] Furthermore, due to the lower friction during the demolding process, mold wear is correspondingly reduced. This extends the mold's lifespan and lowers the cost of mold maintenance and replacement.

[0157] As one feasible implementation, the width of the groove near the bottom of the clearance groove is the minimum width of the clearance groove, which is greater than the width of the longitudinal beam 510 of the vehicle 20.

[0158] For example, in the design of the clearance groove, the groove width near the bottom is set as the minimum groove width. This part is the narrowest area in the entire clearance groove. The minimum groove width is designed to be greater than the width of the longitudinal beam 510. This design ensures that the longitudinal beam 510 can pass smoothly through the clearance groove without being squeezed or restricted. This width setting provides sufficient clearance to allow the longitudinal beam 510 to be freely positioned in the clearance groove.

[0159] As one possible implementation, the two surfaces of the cover 102 at opposite ends are inclined along the second direction.

[0160] For example, when the cover 102 is manufactured by injection molding, the slope of the two surfaces at opposite ends of the cover 102 means that the two surfaces at opposite ends of the cover 102 are provided with a draft angle, which can ensure that the cover 102 can be smoothly removed from the mold after injection molding. This design reduces friction and resistance during demolding and reduces the risk of damage to the plastic part.

[0161] By setting draft angles at both ends of the cover 102, the demolding process becomes smoother and faster. This improves production efficiency, reduces production cycle time, and lowers manufacturing costs.

[0162] The presence of a draft angle reduces friction between the cover 102 and the mold, slows down the wear rate of the mold, thereby extending the service life of the mold and reducing maintenance and replacement costs.

[0163] As one feasible implementation, along the third direction, the width of the cover 102 gradually decreases along the second direction, and the second direction intersects with the third direction.

[0164] For example, the gradually decreasing width of the cover 102 helps the cover 102 to be easily demolded during the injection molding process. As the width decreases, the fit of the plastic part in the mold is reduced, which reduces friction and resistance during demolding, thereby reducing the risk of damage to the plastic part.

[0165] As one feasible implementation, along the direction shown by Z in the figure, the width of the cover 102 on the side closest to the tray 101 is the maximum width of the cover 102, which is less than the distance between adjacent crossbeams 540.

[0166] For example, by designing the maximum width of the cover 102 to be less than the distance between adjacent crossbeams 540, it is ensured that the cover 102 can be smoothly installed between the crossbeams 540. This design avoids interference with the crossbeams 540 and ensures smooth integration of the battery device 10.

[0167] The smaller maximum width design simplifies the installation process of the cover 102. Since the cover 102 can be easily placed between the crossbeams 540, the installation process becomes more straightforward and simple, reducing the need for modifications to the chassis structure.

[0168] As one feasible implementation, along the Y direction shown in Figure 1, a liquid cooling interface is provided at the first end of the housing 100, and a connector 230 is provided at the second end of the housing 100. The connector 230 is located on the side of the first battery cell module 210 near the vehicle beam 500 of the vehicle 20.

[0169] For example, placing the liquid cooling interface at the first end of the housing 100 can effectively manage the heat of the battery device 10. The liquid cooling system helps maintain the optimal operating temperature of the battery device 10 through the circulation of coolant, thereby improving the performance and lifespan of the battery device 10.

[0170] Positioning connector 230 at the second end of housing 100, near the first battery cell module 210 and the beam 500 of vehicle 20, helps simplify the electrical connection path, reduce resistance loss, and improve power transmission efficiency. This layout makes the electrical connections more compact, saves space, and reduces the amount of cabling used, thereby reducing cost and weight.

[0171] For example, connector 230 includes a power connector. The power connector is used to transmit high voltage and high current, and is responsible for delivering the electrical energy stored in the battery device 10 to the drive system of the vehicle 20. For example, it powers an electric motor.

[0172] Connector 230 also includes a low-voltage signal connector for transmitting control signals and monitoring data. These signals may include monitoring data such as voltage, current, and temperature required by the battery management system, as well as control commands.

[0173] For example, connector 230 includes a plug.

[0174] As one possible implementation, the cover 102 has a box protrusion 1021, and a third receiving cavity 1021a is formed on the side of the box protrusion 1021 near the tray 101. The third receiving cavity 1021a is connected to the first receiving cavity 100b. The third receiving cavity 1021a is used to receive the power distribution module.

[0175] For example, a housing protrusion 1021 is formed at the second end of the housing 100, which can effectively utilize space to accommodate additional components, such as a power distribution module. This design helps to increase functional integration without increasing the overall volume. A third receiving cavity 1021a is specifically designed to accommodate the power distribution module, which makes the layout of the electrical system more centralized and orderly. The power distribution module plays a role in distributing electrical energy and managing current in the battery system, ensuring balanced operation of each cell.

[0176] For example, to avoid interference between the box body 100 and the beam 500, the upper surface of the box body protrusion 1021 is higher than the upper surface of the connector 230 disposed next to it, and lower than the upper surface of the longitudinal beam 510.

[0177] As one feasible implementation, referring to Figures 5, 10 and 11, the battery device 10 further includes an electrical connector 300, which connects the first cell modules 210 of two adjacent first receiving cavities 100b.

[0178] Exemplarily, the electrical connector 300 is a component used to achieve electrical connection between the first cell modules 210. It can be a wire or busbar to ensure effective current transmission between the first cell modules 210. One first cell module 210 is installed in each first receiving cavity 100b, and the electrical connector 300 is used to connect the first cell modules 210 in adjacent first receiving cavities 100b to form a complete battery system.

[0179] Electrical connector 300 ensures efficient current transfer between the first cell modules 210, reduces resistance loss, and improves the overall efficiency of the battery device 10. By using electrical connector 300, the battery device 10 can be designed modularly. This design allows each first cell module 210 to be installed and replaced independently, simplifying the production and maintenance process.

[0180] In some embodiments, the electrical connector 300 is a high-voltage power bus. The high-voltage power bus is made of copper or aluminum and possesses conductivity and mechanical strength. It also exhibits low resistance loss and is capable of efficiently transmitting large currents.

[0181] As one possible implementation, the electrical connector 300 has an electrical connection bend 320.

[0182] Along the first direction, the middle part of the electrical connector 300 is bent away from the two ends of the electrical connector 300 in a direction away from the cover 102 to form an electrical connector bending part 320.

[0183] The electrical connection bend 320 and the clearance portion 102a are provided correspondingly and are compatible in shape.

[0184] For example, the electrical connector 300 is bent in the middle to form an electrical connector bend 320. This structural design allows the electrical connector 300 to provide additional space or flexibility without increasing its overall height. The clearance portion 102a is used to provide space for the electrical connector bend 320, allowing it to be arranged without interference.

[0185] In one feasible implementation, the electrical connector 300 includes at least two conductive base portions 310, one end of each of the at least two conductive base portions 310 is connected to the electrical connection bending portion 320, and the other end of each conductive base portion 310 is connected to an adjacent first battery cell module 210.

[0186] For example, the conductive substrate portion 310 is responsible for transmitting current from the first cell module 210. The electrical connection bend portion 320 is responsible for connecting the conductive substrate portion 310 to the adjacent first cell module 210. The electrical connection bend portion 320 is used to connect the two conductive substrate portions 310 to realize the electrical connection between the adjacent first cell modules 210.

[0187] By directly connecting adjacent first cell modules 210, this design enables efficient current transfer, reduces resistance loss, and improves overall system efficiency. This design supports a modular battery system layout, making the production, maintenance, and replacement of the battery device 10 more convenient. Each first cell module 210 can be installed and replaced independently, simplifying the maintenance process.

[0188] In one feasible implementation, the conductive substrate portion 310 includes a conductive plate 311, the conductive plate 311 is provided with a recess 312, and the terminal post of the end cell 240 of the first cell module 210 located at the end is welded to the recess 312.

[0189] For example, the conductive plate 311 is a component of the conductive substrate portion 310. The recess 312 is a specific area on the conductive plate 311 for accommodating the terminal post of the first battery cell module 210. The presence of the recess 312 ensures that the terminal post can be securely embedded in the conductive plate 311, providing a stable electrical connection.

[0190] Since the electrode post needs to be welded to the conductive plate 311, the recessed portion 312 is provided to control the material thickness of the welding area, avoiding an excessively thick welding area. This helps reduce potential heat damage and material deformation during welding. Furthermore, the recessed portion 312 concentrates heat, increasing the temperature of the welding area and improving the welding fusion effect. This contributes to a stronger weld joint, reduces welding defects, and makes the connection between the electrode post and the conductive plate 311 more stable, reducing the risk of loosening due to vibration or impact.

[0191] As one possible implementation, the electrical connection bend 320 includes a first segment 321, a second segment 322, and a third segment 323 connected in sequence.

[0192] The first segment 321 and the third segment 323 both extend along the first direction, and the second segment 322 extends along the second direction; the first segment 321 and the third segment 323 are connected to the first battery cell module 210.

[0193] The first and second directions intersect.

[0194] For example, the first segment 321 and the third segment 323 extend along the direction from tray 101 to cover 102 (in the Z direction in FIG. 1) and are responsible for connecting to the conductive substrate portion 310 to ensure efficient current transmission between the first cell modules 210. The second segment 322 extends along the Y direction in FIG. 1, providing vertical flexibility. The design of this segment allows the conductive connection portion 320 to make electrical connections between different planes.

[0195] By designing the electrical connection bend 320 to extend in different directions, the electrical connection bend 320 adapts to the avoidance structure 102a, reducing the risk of physical interference and ensuring the integrity and functionality of the battery device 10.

[0196] In addition, by designing the electrical connection bend 320 in multiple segments, mechanical stability is improved and the risk of connection loosening or breakage due to vibration or mechanical stress is reduced.

[0197] As one possible implementation, the outer periphery of the electrical connection bend 320 is wrapped with an insulating layer.

[0198] For example, the insulation layer effectively prevents accidental contact between the electrical connection bend 320 and other metal parts or electrical components, reducing the risk of short circuits and electric shock. The insulation layer provides additional protection against environmental factors such as moisture, dust, and chemicals from affecting the electrical connection bend 320, improving the long-term reliability of the electrical connection 300.

[0199] In some embodiments, the electrical connection bend 320 is immersed in liquid epoxy resin, and the epoxy resin cures to form an insulating layer.

[0200] In other embodiments, the outer periphery of the electrical connection bend 320 is wrapped with mica and polyimide. The mica and polyimide form an insulating layer.

[0201] As one possible implementation, the electrical connector 300 is a stamped part or a welded part.

[0202] In some embodiments, the electrical connector 300 is a stamped part. Stamped parts are cut and formed from sheet metal using a stamping process. The stamping process typically utilizes a stamping press and dies. The stamping process enables the rapid production of large quantities of electrical connectors 300, reducing unit production costs. Stamped parts produced by the stamping process exhibit high consistency and dimensional accuracy.

[0203] In other embodiments, the electrical connector 300 is a welded component. A welded component is formed by welding multiple metal parts together. Common welding methods include laser welding, spot welding, and arc welding. Welded components produced through welding processes have high strength.

[0204] For example, the electrical connector 300 can be a stamped aluminum part.

[0205] As one possible implementation, the battery device 10 also includes an insulating member 330, which is disposed between the electrical connector 300 and the first cell module 210, and the electrical connector 300 is detachably connected to the insulating member 330.

[0206] Exemplarily, the primary function of the insulator 330 is to provide electrical isolation, preventing short circuits between the electrical connector 300 and the first cell module 210, and between the electrical connector 300 and the support plate. This helps to avoid electrical faults in the battery device 10 and ensures safe operation. By isolating the electrical connector 300 from the cell and from the support plate, the insulator 330 acts as a safety barrier, preventing accidental contact and the risk of electric shock.

[0207] For example, the electrical connector 300 can be secured to the insulator 330 by snap-fit ​​or screw-fit. This design not only ensures the secure installation of the electrical connector 300, but also facilitates assembly and maintenance.

[0208] In some embodiments, the electrical connector 300 is constrained on the latch of the insulating member 330 by a limiting groove structure, which assists in the welding positioning of the electrical connector.

[0209] For example, the insulating element 330 includes a plastic sheet.

[0210] As one feasible implementation, referring to Figures 6, 8 and 9, the pallet 101 includes a mounting member 1011 for connecting the box body 100 and the vehicle beam 500.

[0211] For example, the mounting component 1011 ensures that the tray 101 is securely connected to the vehicle beam 500, improving the battery unit 10's ability to withstand vibrations and shocks during vehicle 20 operation. Through a reliable mechanical connection, the mounting component 1011 reduces the risk of displacement of the battery unit 10 in the event of a collision or emergency, thus improving the overall safety of the vehicle 20.

[0212] As one possible implementation, referring to FIG3, the mounting member 1011 includes a first flange 440, which is disposed on at least one side of the tray 101 along a second direction.

[0213] For example, the first flange 440 enhances the connection strength between the pallet 101 and the beam 500 by dispersing stress and load through increased contact area. This helps prevent stress concentration at the connection point, reducing material fatigue and potential structural damage. The design of the first flange 440 provides additional support and fixation points, reducing relative movement between the pallet 101 and the beam 500.

[0214] As one feasible implementation, the tray 101 is provided with a mounting groove 410, the first flange 440 is provided with a first mounting hole 420, the groove opening of the mounting groove 410 is away from the cover 102, the first mounting hole 420 and the mounting groove 410 are connected, and the first mounting hole 420 is used for the first fastener 430 to pass through.

[0215] For example, mounting slot 410 is a recess on mounting member 1011 for accommodating connecting tray 101 and first fastener. The design of mounting slot 410 allows the first fastener to be installed from the side, making insertion and securing the first fastener easier in situations with limited space. In other words, the design of mounting slot 410 provides employees with more operating space when installing and maintaining the battery pack; by providing better operating space, employees can perform installation and maintenance work more easily, reducing operational difficulty and time.

[0216] Furthermore, since the installation and disassembly process does not involve direct contact with the first cell module 210 and the second cell module 220, the risk of physical damage to the battery is reduced, and the safety of the battery device 10 is improved.

[0217] For example, by providing a first mounting hole 420 on the first flange 440, the first mounting hole 420 and the mounting groove 410 are connected, and the first fastener can pass through the first mounting hole 420, thereby effectively fixing the tray 101 to the vehicle beam 500, and improving the ability of the battery device 10 to withstand vibration and impact during the driving of the vehicle 20.

[0218] For example, the first fastener 430 includes a bolt that connects to the vehicle beam 500 through a mounting hole 420. This connection provides a reliable mechanical fixation, ensuring that the battery unit 10 remains securely in place while the vehicle 20 is in motion.

[0219] A gasket is placed between the bolt and the mounting hole 420. The gasket's function is to distribute the pressure applied by the bolt, protect the edges of the mounting hole 420, and prevent damage due to overtightening. Furthermore, the gasket can compensate for minor misalignments caused by manufacturing tolerances or thermal expansion, further improving the stability of the connection. Through the combination of bolts and gaskets, the mounting component 1011 effectively mitigates vibrations and shocks generated during vehicle 20 operation. This design reduces stress concentration on the battery assembly 10, extending its service life.

[0220] As one feasible implementation, there are multiple first flanges 440, which are spaced apart along the circumference of the housing 100.

[0221] For example, the spaced-apart first flanges 440 help to evenly distribute mechanical stress on the housing 100, reduce local stress concentration, and improve the stability and durability of the overall structure. Uniform stress distribution can effectively reduce the deformation of the housing 100 under external forces, maintaining its shape and functional integrity.

[0222] The spaced arrangement of multiple first flanges 440 increases the number of connection points, thereby improving the robustness and reliability of the connection between the housing 100 and the beam 500. This arrangement helps prevent individual mounting components 1011 from loosening due to vibration or impact, enhancing the connection stability between the battery pack 10 and the beam 500.

[0223] The first flange 440 is multiple and spaced circumferentially along the housing 100. This arrangement ensures the stability of the battery unit 10 in different directions, providing uniform support and fixation. The battery unit 10 can more evenly distribute the vibrations and impacts generated during vehicle 20 operation, ensuring that the vehicle 20 remains stable during driving, acceleration, deceleration, and cornering. This enhanced stability helps extend the service life of the battery unit 10.

[0224] As one feasible implementation, referring to FIG6, the cover 102 is provided with a clearance notch 104, and the first flange 440 passes through the clearance notch 104 to dock with the vehicle beam 500.

[0225] For example, the clearance notch 104 provides a passage for the first flange 440, allowing it to pass through the cover 102 and abut against the beam 500. This design allows for a tight connection between components without requiring additional space or complex installation steps.

[0226] By providing a clearance notch on the cover 102, precise alignment between the first flange 440 and the beam 500 can be ensured.

[0227] As one possible implementation, referring to FIG4, the mounting member 1011 further includes a second flange 450. Along the first direction, the second flange 450 is disposed on at least one side of the tray 101. The second flange 450 is provided with a second mounting hole 470 for a second fastener 460 to pass through.

[0228] For example, the second flange 450 is connected to the beam 500 by the second fastener 460 to form an integral rigid structure, which improves the overall strength and rigidity of the box 100. This connection method helps to distribute the stress applied to the box 100, reduce local stress concentration, and extend the service life of the box 100 and the beam 500.

[0229] The second fastener 460 provides a reliable connection, ensuring a secure connection between the box 100 and the beam 500, and reducing the risk of loosening during operation.

[0230] For example, the second fastener 460 may be a bolt or a nut.

[0231] Finally, it should be noted that other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and alterations may be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A battery device (10), characterized in that, The battery device (10) includes: The housing (100) has at least two boss structures (100a), each of which forms a first receiving cavity (100b); Multiple battery cells (200) are located within the first receiving cavity (100b); Among them, a clearance portion (102a) is formed between adjacent boss structures (100a), and the clearance portion (102a) is used to avoid the beam (500) of the vehicle (20).

2. The battery device (10) according to claim 1, characterized in that, The housing (100) includes a tray (101) and a cover (102) connected to each other, the cover (102) having the boss structure (100a).

3. The battery device (10) according to claim 2, characterized in that, The protruding end of the boss structure (100a) is located on the side of the cover (102) away from the tray (101); The first receiving cavity (100b) is formed on the side of the boss structure (100a) facing the tray (101).

4. The battery device (10) according to claim 2 or 3, characterized in that, The number of the boss structures (100a) is multiple, and the multiple boss structures (100a) are spaced apart along the first direction; Multiple battery cells (210) form a first battery cell module (210), and the number of the first battery cell modules (210) is multiple; The first receiving cavity (100b) contains at least one of the first battery cell modules (210).

5. The battery device (10) according to claim 4, characterized in that, It also includes an electrical connector (300) that connects the first cell modules (210) of two adjacent first receiving cavities (100b).

6. The battery device (10) according to claim 5, characterized in that, The electrical connector (300) has an electrical connection bend (320); Along the first direction, the middle part of the electrical connector (300) is bent away from the cover (102) relative to both ends of the electrical connector (300) to form the electrical connector bend (320); The electrical connection bend (320) and the clearance portion (102a) are provided correspondingly and are adapted in shape.

7. The battery device (10) according to claim 6, characterized in that, The electrical connector (300) includes at least two conductive base portions (310), one end of each of the at least two conductive base portions (310) is connected to the electrical connection bend portion (320), and the other end of each conductive base portion (310) is connected to the adjacent first battery cell module (210).

8. The battery device (10) according to claim 7, characterized in that, The conductive substrate (310) includes a conductive plate (311), the conductive plate (311) is provided with a recess (312), and the pole of the end cell (240) of the first cell module (210) located at the end is welded to the recess (312).

9. The battery device (10) according to any one of claims 6-8, characterized in that, The electrical connection bend (320) includes a first segment (321), a second segment (322), and a third segment (323) connected in sequence; The first segment (321) and the third segment (323) both extend along the first direction, and the second segment (322) extends along the second direction; the first segment (321) and the third segment (323) are connected to the first battery cell module (210); The first direction and the second direction intersect.

10. The battery device (10) according to any one of claims 6-8, characterized in that, The outer periphery of the electrical connection bend (320) is wrapped with an insulating layer.

11. The battery device (10) according to any one of claims 5-8, characterized in that, The electrical connector (300) is a stamped part or a welded part.

12. The battery device (10) according to any one of claims 6-8, characterized in that, It also includes an insulating element (330) disposed between the electrical connector (300) and the first battery cell module (210), and the electrical connector (300) is detachably connected to the insulating element (330).

13. The battery device (10) according to any one of claims 2-12, characterized in that, The tray (101) has a second receiving cavity (100c), the opening of which faces the cover (102); The first receiving cavity (100b) of each of the boss structures (100a) is connected to the second receiving cavity (100c).

14. The battery device (10) according to claim 13, characterized in that, The battery device (10) further includes a second cell module (220), which is located in the second receiving cavity (100c).

15. The battery device (10) according to any one of claims 2-12, characterized in that, The pallet (101) includes a mounting member (1011) for connecting the box body (100) and the vehicle beam (500).

16. The battery device (10) according to claim 15, characterized in that, The mounting component (1011) includes a first flange (440) disposed on at least one side of the tray (101) along a second direction.

17. The battery device (10) according to claim 16, characterized in that, The tray (101) is provided with a mounting groove (410), and the first flange (440) is provided with a first mounting hole (420). The opening of the mounting groove (410) is away from the cover (102). The first mounting hole (420) and the mounting groove (410) are connected. The first mounting hole (420) is used for the first fastener (430) to pass through.

18. The battery device (10) according to claim 17, characterized in that, There are multiple first flanges (440), and multiple first flanges (440) are spaced apart along the circumference of the housing (100).

19. The battery device (10) according to claim 17, characterized in that, The cover (102) is provided with a clearance notch (104), and the first flange (440) passes through the clearance notch (104) to connect with the vehicle beam (500).

20. The battery device (10) according to any one of claims 16-19, characterized in that, The mounting component (1011) further includes a second flange (450) along a first direction, the second flange (450) being disposed on at least one side of the tray (101), the second flange (450) having a second mounting hole (470) for a second fastener (460) to pass through.

21. The battery device (10) according to any one of claims 2-12, characterized in that, The avoidance part (102a) is an avoidance groove; the opening of the avoidance groove is directed toward the beam (500) of the vehicle (20).

22. The battery device (10) according to claim 21, characterized in that, The tray (101) and the cover (102) are arranged along a third direction. Along a second direction, the clearance groove passes through the cover (102). The second direction and the third direction intersect.

23. The battery device (10) according to claim 22, characterized in that, The walls of the clearance groove are inclined.

24. The battery device (10) according to claim 23, characterized in that, The width of the clearance groove gradually increases from the bottom of the groove to the opening of the groove.

25. The battery device (10) according to claim 23, characterized in that, The width of the groove near the bottom of the clearance groove is the minimum width of the clearance groove, which is greater than the width of the longitudinal beam (510) of the vehicle (20).

26. The battery device (10) according to claim 2, characterized in that, Along the second direction, the two surfaces of the cover (102) at opposite ends have an inclination.

27. The battery device (10) according to claim 26, characterized in that, Along the third direction, the width of the cover (102) gradually decreases along the second direction, and the second direction intersects with the third direction.

28. The battery device (10) according to any one of claims 2-27, characterized in that, The cover (102) is an injection molded part.

29. The battery device (10) according to any one of claims 2-12, characterized in that, The cover (102) has a box protrusion (1021), and a third receiving cavity (1021a) is formed on the side of the box protrusion (1021) near the tray (101). The third receiving cavity (1021a) is connected to the first receiving cavity (100b). The third receiving cavity (1021a) is used to receive the power distribution module.

30. A vehicle, characterized in that, include: Vehicle beam (500); The battery device (10) according to any one of claims 1-29, wherein the battery device (10) is connected to the vehicle beam (500); and the avoidance part (102a) of the battery device (10) is used to avoid the vehicle beam (500).

31. The vehicle according to claim 30, characterized in that, The beam (500) includes a crossbeam (540) extending along the width direction of the vehicle (20); The crossbeam (540) includes a first crossbeam (550) and a second crossbeam (560), which are arranged opposite to each other along the length of the vehicle (20); the tray (101) of the battery device (10) includes at least two first flanges (440) arranged opposite to each other, which are respectively connected to the first crossbeam (550) and the second crossbeam (560).

32. The vehicle according to claim 31, characterized in that, It also includes a first fastener (430), a portion of which abuts against the side of the first flange (440) away from the crossbeam (540), and a portion of the first fastener (430) passes through the first flange (440) and the crossbeam (540).

33. The vehicle according to claim 30, characterized in that, The beam (500) includes a longitudinal beam (510) extending along the length of the vehicle (20); at least a portion of the longitudinal beam (510) is located in a clearance groove of the clearance portion (102a) of the battery device (10).

34. The vehicle according to claim 32, characterized in that, The vehicle beam (500) further includes at least two mounting beams (530), which are located on both sides of the first crossbeam (550) and the second crossbeam (560) along the width direction of the vehicle (20) and are respectively connected to the first crossbeam (550) and the second crossbeam (560). The tray (101) includes at least two second flanges (450) arranged opposite to each other, which are respectively connected to the at least two mounting beams (530).

35. The vehicle according to claim 34, characterized in that, It also includes a second fastener (460), a portion of which abuts against the side of the mounting beam (530) away from the second flange (450), and a portion of which passes through the second flange (450) and the mounting beam (530).

36. The vehicle according to claim 30, characterized in that, The number of battery devices (10) is multiple, and the multiple battery devices (10) are arranged sequentially along the length direction of the vehicle (20).

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