Battery device and vehicle

Abstract

Embodiments of the present application relate to the technical field of batteries, and provide a battery device and a vehicle. The battery device comprises a case, battery cells, and a power distribution module. The case is provided with clearance portions, the clearance portions being used for providing clearance for vehicle beams of the vehicle; the case is provided with first accommodating cavities, each first accommodating cavity being located on at least one side of a clearance portion; the plurality of battery cells are located in each first accommodating cavity; the power distribution module is electrically connected to the battery cells; and in the height direction of the battery device, the power distribution module is provided at the tops of the battery cells. By designing the clearance portions in the case, the design of the clearance portions allows the battery device to make full use of the space beneath a chassis without affecting the vehicle beam structure, thereby improving space utilization. By providing the power distribution module at the tops of the battery cells, the space in the vicinity of the vehicle beams can be effectively utilized, such that it is unnecessary to reserve additional space within the battery device for accommodating the power distribution module, thereby improving the space utilization of the battery device.

Description

Battery devices and vehicles

[0001] This application claims priority to Chinese Patent Application No. 202510249714.4, 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 insufficient space utilization. Summary of the Invention

[0005] This application provides a battery device and a vehicle that improves the space utilization of the battery device.

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

[0007] The box body has a clearance section for avoiding the beams of a vehicle; the box body has a first receiving cavity located on at least one side of the clearance section.

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

[0009] The power distribution module is electrically connected to the battery cell; the power distribution module is located on top of the battery cell along the height direction of the battery assembly.

[0010] In some embodiments of this application, the power distribution module includes a power distribution component located in a first receiving cavity, and the power distribution component is electrically connected to the battery cell.

[0011] In some embodiments of this application, the power distribution module further includes an adapter disposed on the top of the battery cell; the battery cell is electrically connected to the power distribution module through the adapter.

[0012] In some embodiments of this application, the power distribution module includes a connector, and the connector is electrically connected to the power distribution component; the connector is disposed on the top of the battery cell.

[0013] In some embodiments of this application, the adapter further includes an adapter panel disposed on the top of the battery cell; a connector is disposed on the side of the adapter panel opposite to the battery cell.

[0014] In some embodiments of this application, multiple battery cells form a first battery cell module, and the number of first battery cell modules is multiple. The number of first receiving cavities is multiple, and each first receiving cavity accommodates at least one first battery cell module.

[0015] In some embodiments of this application, the housing further includes a second receiving cavity; along the height direction of the battery device, the first receiving cavity and the second receiving cavity are arranged sequentially, with the first receiving cavity located at the top of the second receiving cavity.

[0016] In some embodiments of this application, multiple first receiving cavities are connected through second receiving cavities.

[0017] In some embodiments of this application, the battery device further includes an electrical connector, through which first cell modules located in two adjacent first receiving cavities are connected.

[0018] In some embodiments of this application, the electrical connector has an electrical connection bend.

[0019] Along the first direction, the middle part of the electrical connector is bent away from the two ends of the electrical connector in the direction away from the clearance part, forming the electrical connector bending part.

[0020] Along the height direction of the battery device, the electrical connection bend and the clearance part are correspondingly provided and their shapes are compatible.

[0021] The first direction intersects with the height direction of the battery device.

[0022] 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.

[0023] 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.

[0024] In some embodiments of this application, the electrical connection bend includes a first segment, a second segment, and a third segment connected in sequence.

[0025] The first and third segments extend along the height of the battery device, while the second segment extends along the first direction; the first and third segments are connected to the conductive substrate.

[0026] In some embodiments of this application, the outer periphery of the electrical connection bend is wrapped with an insulating layer.

[0027] In some embodiments of this application, the electrical connector is a stamped part or a welded part.

[0028] In some embodiments of this application, the battery device further includes a second cell module; the second cell module is located in the second receiving cavity.

[0029] In some embodiments of this application, the battery device further includes a support member disposed between the first cell module and the second cell module, and the support member is connected to at least one side wall of the housing.

[0030] In some embodiments of this application, the adapter further includes a fixing bracket that connects the adapter panel and the housing.

[0031] In some embodiments of this application, the adapter further includes an insulating bracket disposed between the adapter panel and the first battery cell module.

[0032] In some embodiments of this application, the insulating support includes a first insulating support and a second insulating support. The first insulating support is disposed on the side of the adapter panel near the first cell module, and the second insulating support is disposed on the side of the first insulating support near the first cell module.

[0033] In some embodiments of this application, the adapter further includes a first adapter portion for connecting the first battery cell module and the first input terminal of the power distribution component.

[0034] In some embodiments of this application, the first adapter includes a first adapter segment and a second adapter segment connected to each other; along a first direction, the first adapter segment is disposed on one side of the first cell module; the first adapter segment and the first cell module are connected.

[0035] The second transition section is disposed between the first insulating support and the second insulating support, and the second transition section is connected to the first input terminal;

[0036] The first direction intersects with the height direction of the battery device.

[0037] In some embodiments of this application, the second insulating bracket has a first limiting groove, and the portion of the first transition section near the second transition section is located in the first limiting groove.

[0038] In some embodiments of this application, the adapter further includes a second adapter portion disposed between the first insulating support and the second insulating support.

[0039] The second adapter is used to connect the first output terminal of the power distribution unit and the connector.

[0040] In some embodiments of this application, the adapter further includes a third adapter section; the third adapter section is used to connect the second battery cell module and the second input terminal of the power distribution component.

[0041] In some embodiments of this application, the third adapter includes a third adapter segment and a fourth adapter segment; along the first direction, the third adapter segment is disposed on one side of the second cell module; the third adapter segment is connected to the second cell module.

[0042] The fourth transition section is located between the first insulating support and the second insulating support; the fourth transition section is connected to the second input terminal of the power distribution unit.

[0043] In some embodiments of this application, the second insulating bracket has a second limiting groove, and the portion of the third transition section near the fourth transition section is located in the second limiting groove.

[0044] In some embodiments of this application, the adapter further includes a fourth adapter portion disposed between the first insulating support and the second insulating support.

[0045] The fourth adapter is used to connect the second output terminal of the power distribution unit and the connector.

[0046] In some embodiments of this application, the battery device further includes a connection structure for connecting a first cell module and a second cell module.

[0047] The connection structure includes a first connection part and a second connection part; the first connection part and the second connection part are electrically connected.

[0048] The first connecting part is electrically connected to the first battery cell module; the second connecting part is electrically connected to the second battery cell module.

[0049] In some embodiments of this application, the battery device further includes a voltage divider relay disposed on the support member; the voltage divider relay is electrically connected to the power distribution member.

[0050] The two ends of the voltage divider relay are connected to the first connection part and the second connection part, respectively.

[0051] In some embodiments of this application, the battery device further includes a cold plate disposed between the power distribution component and the first cell module.

[0052] In some embodiments of this application, a first boss is provided at the first end of the adapter panel along the first direction, and the first end of the adapter panel is connected to the cold plate through the first boss.

[0053] The second end of the adapter panel is provided with a second boss, and the second end of the adapter panel is connected to the fixed bracket through the second boss.

[0054] The first direction intersects with the height direction of the battery device.

[0055] In some embodiments of this application, the housing includes an interconnected cover and a tray.

[0056] The cover has a clearance section.

[0057] In some embodiments of this application, the tray is used to connect to the vehicle beam, and the cover is located between the tray and the vehicle beam.

[0058] In some embodiments of this application, the avoidance portion is an avoidance groove; along the second direction, the avoidance groove penetrates the cover.

[0059] The second direction intersects with the height direction of the battery device.

[0060] In some embodiments of this application, there are multiple avoidance parts, which are spaced apart along a first direction. Each of the multiple avoidance parts is used to avoid multiple beams of a vehicle. The first direction intersects with the second direction.

[0061] Secondly, embodiments of this application provide a vehicle, including:

[0062] Car beam;

[0063] The battery unit is connected to the vehicle beam; the clearance section of the battery unit is used to avoid the vehicle beam.

[0064] In some embodiments of this application, the vehicle beam includes a crossbeam extending along the width direction of the vehicle.

[0065] The crossbeam includes a first crossbeam and a second crossbeam, which are spaced apart along the length of the vehicle; the battery pack housing is connected to the first crossbeam and the second crossbeam.

[0066] 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 the clearance section.

[0067] 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 width direction of the vehicle and are respectively connected to the first crossbeam and the second crossbeam, and the box body is connected to the mounting beams.

[0068] In some embodiments of this application, there are multiple battery devices arranged sequentially along the length of the vehicle.

[0069] The battery device and vehicle provided in this application embodiment include a housing, battery cells, and a power distribution module. The housing has a clearance portion for avoiding the vehicle beam; the housing has a first receiving cavity located on at least one side of the clearance portion; a plurality of battery cells are located in the first receiving cavity; the power distribution module is electrically connected to the battery cells; along the height direction of the battery device, the power distribution module is disposed on top of the battery cells.

[0070] By designing clearance sections within the battery pack, the battery pack can adapt to the structure of the vehicle chassis. The clearance section design allows the battery pack to make full use of the space under the vehicle chassis without affecting the vehicle beam structure. At the same time, the power distribution module is located on top of the battery cells, which avoids reserving extra space in the battery pack to accommodate the power distribution module. This makes the design of the battery pack more compact, effectively utilizes the limited space inside the battery pack, and improves the space utilization rate of the battery pack. Attached Figure Description

[0071] 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.

[0072] Figure 1 is a schematic diagram of the battery device and vehicle beam provided in the embodiment of this application;

[0073] Figure 2 is a schematic diagram of the battery device provided in an embodiment of this application;

[0074] Figure 3 is a partial structural schematic diagram of the battery device provided in an embodiment of this application;

[0075] Figure 4 is a schematic diagram of the structure of the adapter of the battery device provided in the embodiment of this application;

[0076] Figure 5 is a schematic diagram of the structure of the adapter of the battery device provided in the embodiment of this application;

[0077] Figure 6 is a schematic diagram of the battery cell and power distribution module of the battery device provided in the embodiment of this application;

[0078] Figure 7 is a schematic diagram of the battery cell and connection structure of the battery device provided in the embodiment of this application;

[0079] Figure 8 is a schematic diagram of the electrical connectors and battery cells of the battery device provided in the embodiments of this application.

[0080] Explanation of reference numerals in the attached drawings: 10: Battery assembly; 100: Housing; 100a: First receiving cavity; 100b: Second receiving cavity; 101: Clearance section; 102: Tray; 103: Cover; 104: Supporting component; 210: Battery cell; 211: First battery cell module; 212: Second battery cell module; 213: End battery cell; 220: Power distribution module; 221: Power distribution component; 222: Adapter component; 223: Adapter panel; 2231: First boss; 2232: Second boss; 224: Insulating bracket; 224a: First insulating bracket; 224b: Second insulating bracket; 224c: First limiting groove; 224d: Second limiting groove; 225: First adapter section; 225a: First adapter segment; 225b: Second adapter segment 226: Second transition section; 227: Third transition section; 227a: Third transition section; 227b: Fourth transition section; 228: Fourth transition section; 229: Connector; 230: Fixed bracket; 240: Connection structure; 241: First connection section; 242: Second connection section; 243: Voltage divider relay; 250: Cold plate; 260: Electrical connector; 261: Electrical connection bend; 261a: First section; 261b: Second section; 261c: Third section; 262: Conductive base section; 263: Conductive plate; 264: Recessed section; 300: Vehicle beam; 310: Longitudinal beam; 330: Mounting beam; 340: Crossbeam; 350: First crossbeam; 360: Second crossbeam; 20: Vehicle.

[0081] 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

[0082] 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.

[0083] In modern electric vehicle technology, vehicle 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.

[0084] 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.

[0085] Battery units are typically designed in a rectangular shape to facilitate installation within a battery compartment in the vehicle's chassis or body structure. However, this shape may not always perfectly match the available space in a vehicle, resulting in inefficient space utilization.

[0086] The battery unit comprises a battery housing and a distribution box. The distribution box is located inside the battery housing to protect it from external environmental factors such as moisture, dust, and physical damage. However, this design may consume valuable space within the battery unit. Since the distribution box and related electrical components require space, this may limit the arrangement and number of battery cells, thereby reducing overall energy density and space utilization.

[0087] In summary, existing battery devices suffer from insufficient space utilization.

[0088] In view of this, embodiments of this application provide a battery device and a vehicle. The battery device includes a housing, battery cells, and a power distribution module. The housing has a clearance portion for avoiding a vehicle beam; the housing has a first receiving cavity located on at least one side of the clearance portion; a plurality of battery cells are located in the first receiving cavity; the power distribution module is electrically connected to the battery cells; along the height direction of the battery device, the power distribution module is disposed on top of the battery cells.

[0089] By designing clearance sections within the battery pack, the battery pack can adapt to the structure of the vehicle chassis. The clearance section design allows the battery pack to make full use of the space under the vehicle chassis without affecting the vehicle beam structure. At the same time, the power distribution module is located on top of the battery cells, which avoids reserving extra space in the battery pack to accommodate the power distribution module. This makes the design of the battery pack more compact, effectively utilizes the limited space inside the battery pack, and improves the space utilization rate of the battery pack.

[0090] 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.

[0091] In a first aspect, referring to FIG1, an embodiment of this application provides a vehicle 20, including:

[0092] 300mm beam;

[0093] The battery device 10 is connected to the vehicle beam 300; the avoidance part 101 of the battery device 10 is used to avoid the vehicle beam 300.

[0094] For example, the beam 300 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 300 provides the necessary rigidity and strength to ensure that the vehicle 20 maintains its structural integrity under various driving conditions.

[0095] 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.

[0096] By connecting the battery pack 10 to the vehicle beam 300, 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 cells within a limited space.

[0097] The design of the avoidance section 101 allows the battery unit 10 to make full use of the space under the chassis of the vehicle 20 without affecting the structure of the beam 300.

[0098] As one possible implementation, the beam 300 includes a crossbeam 340 extending along the width direction of the vehicle 20.

[0099] The crossbeam 340 includes a first crossbeam 350 and a second crossbeam 360, which are spaced apart along the length of the vehicle 20. The battery pack 100 is connected to the first crossbeam 350 and the second crossbeam 360. The length direction of the vehicle 20 is shown in the X direction in FIG1. ​​The width direction of the vehicle 20 is shown in the Y direction in FIG1.

[0100] For example, the battery unit 10 is designed to be located between the first crossbeam 350 and the second crossbeam 360. This layout utilizes the space between the crossbeams 340, 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 340, 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.

[0101] As one possible implementation, the beam 300 includes a longitudinal beam 310 extending along the length of the vehicle 20; at least a portion of the longitudinal beam 310 is located in the clearance portion 101.

[0102] For example, the longitudinal beam 310 is located in the clearance groove of the clearance portion 101 of the battery device 10. The clearance groove is used to accommodate the longitudinal beam 310, 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 310.

[0103] As one possible implementation, the vehicle beam 300 also includes at least two mounting beams 330, which are located on both sides of the first crossbeam 350 and the second crossbeam 360 along the width direction of the vehicle 20 and are respectively connected to the first crossbeam 350 and the second crossbeam 360, and the box body 100 is connected to the mounting beams 330.

[0104] For example, at least two mounting beams 330 are located on both sides of the first crossbeam 350 and the second crossbeam 360, respectively. This arrangement may be to provide better support and stability so that the housing 100 can be securely connected to the vehicle 20 structure.

[0105] As one feasible implementation, there are multiple battery devices 10, which are arranged sequentially along the length of the vehicle 20.

[0106] 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 battery capacity, thereby extending the driving range of the vehicle 20.

[0107] 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.

[0108] Secondly, referring to Figures 1 and 2, embodiments of this application provide a battery device 10 for a vehicle 20, the battery device 10 comprising:

[0109] The box body 100 has a clearance portion 101 for clearing the beam 300 of the vehicle 20; the box body 100 has a first receiving cavity 100a located on at least one side of the clearance portion 101.

[0110] Battery cell 210, multiple battery cells 210 are located in the first receiving cavity 100a;

[0111] The power distribution module 220 is electrically connected to the battery cell 210; the power distribution module 220 is disposed on top of the battery cell 210 along the height direction of the battery device 10.

[0112] For example, cell 210 is the core component of battery device 10, responsible for storing and providing electrical energy. The clearance section 101 is designed to avoid structures such as the vehicle beam 300 in the chassis of vehicle 20. The vehicle beam 300 is an important load-bearing and structural component in the chassis of vehicle 20, and battery device 10 needs to be installed without affecting the function of the vehicle beam 300.

[0113] By designing a clearance section 101 in the housing 100, the battery device 10 can adapt to the structure of the vehicle 20 chassis. The design of the clearance section 101 allows the battery device 10 to make full use of the space under the chassis without affecting the structure of the vehicle beam 300, thereby improving space utilization.

[0114] By placing the power distribution module 220 on top of the battery cell 210, as shown in Figure 1, the power distribution module 220 is positioned on the side of the battery cell 210 near the vehicle beam 300 of the vehicle 20, i.e., on top of the battery cell 210. This effectively utilizes the space near the vehicle beam 300, avoiding the need for additional space in the battery assembly 10 to accommodate the power distribution module 220. This results in a more compact design for the battery assembly 10, effectively utilizing the limited internal space and improving its space utilization rate. Simultaneously, it avoids reserving excessive redundant space for electrical connections within the battery assembly 10. This design allows the battery assembly 10 to accommodate more battery cells 210 within a limited volume, thereby increasing the battery's energy density.

[0115] In one possible implementation, the housing 100 includes a cover 103 and a tray 102 that are interconnected.

[0116] The cover 103 has a clearance part 101.

[0117] Exemplarily, tray 102 is the bottom structure of battery device 10, used to support and secure battery cells 210. Tray 102 has strength and rigidity to withstand the weight of battery cells 210 and vibrations and impacts generated during vehicle 20 operation. Cover 103 is the top structure of battery device 10, used to cover and protect battery cells 210. Cover 103 has sealing properties to prevent water, dust, and other external contaminants from entering the interior of battery device 10. Tray 102 and cover 103 are interconnected to form a complete housing 100 structure. Tray 102 and cover 103 can be connected by bolts, snaps, or welding.

[0118] The combination of tray 102 and cover 103 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 210.

[0119] The cover 103 is used to form the avoidance part 101.

[0120] As one possible implementation, the tray 102 is used to connect to the beam 300 of the vehicle 20, and the cover 103 is located between the tray 102 and the beam 300 of the vehicle 20.

[0121] For example, the tray 102 is directly connected to the vehicle beam 300, providing a stable mounting base for the battery device 10 to ensure its stability during vehicle 20 operation and reduce displacement or damage caused by vibration or impact. A cover 103 is located between the tray 102 and the vehicle beam 300, providing additional protection for the battery cell 210.

[0122] As one possible implementation, the cover 103 forms a first receiving cavity 100a.

[0123] For example, the first receiving cavity 100a formed by the cover 103 provides physical protection for the battery cell 210, protecting the internal battery cell 210 and power distribution module 220 from external environmental influences such as dust, moisture and physical impact.

[0124] As one possible implementation, the housing 100 also forms a second receiving cavity 100b; along the height direction of the battery device 10, the first receiving cavity 100a and the second receiving cavity 100b are arranged sequentially, with the first receiving cavity 100a located on top of the second receiving cavity 100b.

[0125] In some embodiments, the tray 102 is formed with a second receiving cavity 100b, the opening of which faces the cover 103.

[0126] In one feasible implementation, multiple battery cells 210 form a first battery cell module 211, and the number of first battery cell modules 211 is multiple.

[0127] There are multiple first receiving cavities 100a, and each first receiving cavity 100a contains at least one first battery cell module 211.

[0128] For example, the design of the first receiving cavity 100a to accommodate at least the first cell module 211 can increase the battery capacity of the battery device 10 and improve the reliability and performance of the battery device 10.

[0129] For example, a plurality of first receiving cavities 100a are used to receive the first battery cell module 211. The design of each first receiving cavity 100a ensures the stability and safety of the first battery cell module 211, preventing movement or damage during use. Each first battery cell module 211 corresponds one to one first receiving cavity 100a, ensuring that each first battery cell module 211 has dedicated space for fixation and protection.

[0130] As one possible implementation, the battery device 10 also includes a second cell module 212; the second cell module 212 is located in the second receiving cavity 100b.

[0131] For example, referring to the direction shown by Z in FIG1, the first cell module 211 and the second cell module 212 are stacked. The stacked first cell module 211 and the second cell module 212 are designed to make full use of space in the vertical direction, so that the battery device 10 can accommodate more first cell modules 211 and second cell modules 212 without increasing the horizontal footprint, thereby improving the overall energy density. By distributing the first cell module 211 and the second cell module 212 in different cavities, heat can be managed more effectively.

[0132] For example, the design of the second receiving cavity 100b allows the tray 102 to accommodate more second cell modules 212, thereby increasing the volumetric energy density of the battery device 10 to make full use of the space between the tray 102 and the cover 103.

[0133] For example, the first battery cell module 211 includes a plurality of battery cells 210, which are arranged sequentially along the Y direction shown in FIG1, and adjacent battery cells 210 are electrically connected by connecting pieces.

[0134] The second battery cell module 212 includes multiple battery cell units, which are arranged sequentially along the Y direction shown in Figure 1, and adjacent battery cell units are electrically connected by connecting pieces.

[0135] In one possible implementation, multiple first receiving cavities 100a are connected through a second receiving cavity 100b.

[0136] For example, by connecting the various first receiving cavities 100a through the second receiving cavity 100b, an electrical connection can be achieved between the first cell module 211 and the second cell module 212. This integrated design simplifies the wiring and connection of the battery device 10, and improves the overall efficiency and reliability of the battery device 10. The interconnected receiving cavity design allows for efficient use of the space between the tray 102 and the cover 103, enabling the storage of more first cell modules 211 and second cell modules 212 without increasing the overall volume of the battery device 10.

[0137] For example, multiple first receiving cavities 100a are connected via a second receiving cavity 100b, thereby achieving an electrical connection between the first cell module 211 and the second cell module 212. This design reduces the need for external wiring, lowers installation complexity and potential points of failure, and improves the reliability of the battery device 10.

[0138] The interconnected cavity design allows for the utilization of the space between the tray 102 and the cover 103. This layout allows for the inclusion of more first cell modules 211 and second cell modules 212 without increasing the overall volume of the battery device 10, thereby improving energy density.

[0139] As one possible implementation, the battery device 10 further includes a support member 104 disposed between the first cell module 211 and the second cell module 212, and the support member 104 is connected to at least one side wall of the housing 100.

[0140] Exemplarily, the support member 104 provides additional physical support between the first cell module 211 and the second cell module 212. This support helps maintain the stability of the first cell module 211 and the second cell module 212, preventing displacement or damage under vibration or impact conditions. The support member 104 can act as a buffer layer, absorbing and dispersing vibrations and impacts caused by vehicle 20 travel or external impacts. This buffering effect helps protect the first cell module 211 and the second cell module 212, extending their service life. The support member 104 helps to evenly distribute mechanical loads within the battery device 10, preventing localized stress concentration. This load distribution reduces material fatigue and potential structural failures.

[0141] Furthermore, the support member 104 is connected to at least one side wall of the housing 100, which improves the connection stability between the housing 100 and the support member 104 and enhances the structure of the battery device 10.

[0142] For example, the support member 104 may be a support plate.

[0143] As one feasible implementation, the clearance part 101 is a clearance groove; along the second direction, the clearance groove penetrates the cover 103.

[0144] The second direction intersects with the height direction of the battery device 10. The second direction is shown as direction X in FIG1.

[0145] For example, the clearance groove is a recessed structure in the battery device 10, with its opening facing the vehicle beam 300 of the vehicle 20, so that the battery device 10 can avoid the chassis structure such as the vehicle beam 300 during installation. The design of the clearance groove opening facing the vehicle beam 300 ensures that the battery device 10 can fit tightly against the chassis of the vehicle 20, while avoiding physical interference with the vehicle beam 300.

[0146] 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 300, but also protect the battery unit 10 from vibrations and impacts from the vehicle beam 300 to a certain extent.

[0147] Meanwhile, the presence of the clearance groove 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 300.

[0148] In one feasible implementation, there are multiple avoidance parts 101, which are spaced apart along a first direction. Each of the multiple avoidance parts 101 is used to avoid multiple beams 300 of the vehicle 20. The first direction intersects with a second direction. The first direction is shown as direction Y in FIG1, and the second direction is shown as direction X in FIG1.

[0149] For example, by designing multiple clearance portions 101, 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 300. The presence of the clearance portions 101 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.

[0150] As one possible implementation, the power distribution module 220 is located on top of the battery cell 210.

[0151] For example, by placing the power distribution module 220 on top of the battery cell 210, that is, by setting the power distribution module on the side of the battery cell 210 near the cover 103, the space between the cover 103 and the battery cell 210 can be fully utilized. This layout can reduce the gaps inside the battery device 10 and improve the space utilization rate inside the battery device 10.

[0152] The power distribution module 220 is located close to the cover 103, that is, the power distribution module 220 is located close to the vehicle 20. This allows the power of the battery device 10 to be easily led to the electrical components of the vehicle 20, reducing power transmission loss.

[0153] Meanwhile, the power distribution module 220 is positioned close to the cover 103 for easy maintenance and repair when needed. The cover 103 is typically a more easily removable part of the battery device 10, which makes access to the power distribution module 220 more convenient and reduces maintenance costs and time.

[0154] As one feasible implementation, referring to FIG3, the power distribution module 220 includes a power distribution component 221, which is located in the first receiving cavity 100a and is electrically connected to the battery cell 210.

[0155] For example, placing the power distribution component 221 within the first receiving cavity 100a and tightly integrating it with the battery cell 210 effectively utilizes the internal space. This compact design reduces gaps between components, making the battery device 10 more efficient and smaller. The direct electrical connection between the power distribution component 221 and the battery cell 210 shortens the current transmission path and reduces power transmission losses. This direct connection improves power transmission efficiency and enhances the overall performance of the battery device 10.

[0156] For example, the power distribution unit 221 includes a power distribution box.

[0157] For example, the power distribution unit 221 is responsible for managing and distributing the electrical energy in the battery cell 210. The functions of the power distribution unit 221 include power distribution, current management, voltage regulation, and safety protection. Power distribution refers to allocating the electrical energy in the battery device 10 to different systems and components, such as electric motors, on-board electronic devices, and charging systems. Current management refers to the power distribution unit 221 monitoring and controlling the flow of current to ensure that the current operates within a safe range to prevent overcurrent or short circuits. Voltage regulation refers to the power distribution unit 221 adjusting the output voltage to meet the needs of different devices, ensuring that the devices can operate at the optimal voltage level. Safety protection refers to the power distribution unit 221 integrating various protection mechanisms, such as overcurrent protection, overvoltage protection, short circuit protection, and overtemperature protection, to ensure the safety of the battery device 10 and connected devices.

[0158] As one feasible implementation, referring to Figures 3 to 6, the power distribution module 220 further includes an adapter 222, which is disposed on the top of the battery cell 210; the battery cell 210 is electrically connected to the power distribution module 221 through the adapter 222.

[0159] For example, the adapter 222 is positioned on top of the battery cell 210, that is, the adapter 222 is positioned on the side of the cover 103 near the vehicle beam 300, which can effectively utilize the space near the vehicle beam 300. This layout can reduce the space occupied inside the battery device 10, making the overall design more compact.

[0160] By incorporating the adapter 222, the electrical connection between the battery cell 210 and the power distribution unit 221 is simplified. This design not only reduces cable length and power transmission loss but also simplifies the complexity of electrical connections, improving the reliability of the battery device 10. Furthermore, the proximity of the adapter 222 to the cover 103 facilitates maintenance and repair. The cover 103 is typically one of the more easily removable parts of the battery device 10, making access to the adapter 222 more convenient and reducing maintenance costs and time.

[0161] When assembling the power distribution module 220, the adapter 222 and the fixing bracket 230 are installed first, and then the power distribution component 221 is assembled, which is beneficial for the subsequent separate maintenance of the power distribution component 221.

[0162] As one possible implementation, the power distribution module 220 includes a connector 229, which is electrically connected to the power distribution component 221; the connector 229 is disposed on the top of the battery cell 210.

[0163] For example, the location of connector 229 near the beam 300 is typically closer to the main power distribution system of vehicle 20. This layout shortens the path of electrical energy from battery unit 10 to other parts of vehicle 20, reducing cable length and power loss, and improving transmission efficiency. Because connector 229 is close to the beam 300, wiring can be more direct and concise. This simplified wiring not only reduces installation complexity but also reduces potential points of failure, improving the reliability of battery unit 10. At the same time, shorter cable lengths mean lower resistance, thus reducing power loss during transmission. This contributes to improved overall efficiency and performance of battery unit 10.

[0164] For example, connector 229 includes a positive power connector and a negative power connector. The positive power connector is responsible for transmitting the positive portion of the current from the battery device 10 to a load such as a motor or other electrical equipment. Connector 229 is used to draw current from the power distribution unit 221.

[0165] The positive power connector is made of copper or silver-plated copper to ensure low resistance and high efficiency.

[0166] The negative power connector is used to connect to the negative terminal of a power source. It is responsible for transmitting the negative portion of the current, completing the circuit closure and allowing current to circulate between the power source and the load. The negative power connector is typically made of copper or silver-plated copper to ensure low resistance and high efficiency.

[0167] For example, the positive power connector can be a positive plug. The negative power connector can be a negative plug.

[0168] As one possible implementation, the adapter 222 also includes an adapter panel 223, which is disposed on the top of the battery cell 210; a connector 229 is disposed on the side of the adapter panel 223 facing away from the battery cell 210.

[0169] For example, the adapter panel 223 is disposed on the top of the battery cell 210, that is, the adapter panel 223 is disposed on the side of the battery cell 210 near the vehicle beam 300, which can effectively utilize the space near the vehicle beam 300. This layout reduces the space occupied inside the battery device 10, making the overall design more compact.

[0170] As a mounting platform, adapter panel 223 provides a stable foundation for mounting and securing connectors 229 and other electrical components. This stability ensures the reliability of electrical connections, preventing loosening or disconnection due to vibration or impact. The placement of connectors 229 on adapter panel 223 makes electrical connections cleaner and more organized. This design simplifies cable routing, reduces installation complexity, and lowers potential points of failure.

[0171] As one possible implementation, the adapter 222 also includes a fixing bracket 230 that connects the adapter panel 223 and the housing 100.

[0172] For example, the mounting bracket 230 provides a secure connection point to firmly attach the adapter panel 223 to the tray 102 of the housing. This connection method enhances the structural stability of the entire battery device 10, preventing displacement or loosening of components under vibration or impact conditions. The mounting bracket 230 provides a clear connection and support point, making the assembly process of the battery device 10 easier. When maintenance or repair is required, technicians can quickly disassemble and replace components.

[0173] As one possible implementation, the adapter 222 also includes an insulating bracket 224 disposed between the adapter panel 223 and the first battery cell module 211.

[0174] For example, the insulating bracket 224 functions to provide electrical insulation, preventing short circuits or electrical interference between the adapter panel 223 and the first cell module 211. This insulation protection is crucial for ensuring the safety of the battery device 10. By providing the insulating bracket 224 between the adapter panel 223 and the first cell module 211, the generation of electric arcs and leakage current can be effectively prevented. This helps protect the integrity and reliability of the battery system.

[0175] In addition, the insulating bracket 224 not only provides electrical insulation but also serves as a physical support, helping to stabilize the position of the adapter panel 223 and the first cell module 211. This support helps prevent the components from shifting under vibration or shock conditions.

[0176] For example, the insulating bracket 224 can be a plastic bracket. In addition to its insulating function, the plastic bracket also possesses a certain degree of elasticity to absorb and disperse vibrations and impacts caused by the movement of the vehicle 20 or external impacts.

[0177] In one feasible implementation, the insulating bracket 224 includes a first insulating bracket 224a and a second insulating bracket 224b. The first insulating bracket 224a is disposed on the side of the adapter panel 223 near the first cell module 211; the second insulating bracket 224b is disposed on the side of the first insulating bracket 224a near the first cell module 211.

[0178] For example, a first insulating bracket 224a is disposed on the side of the adapter panel 223 near the first cell module 211, providing primary electrical insulation. This insulating layer prevents any electrical contact between the adapter panel 223 and the first cell module 211, ensuring the safety of the battery device 10.

[0179] The second insulating support 224b is disposed on the side of the first insulating support 224a near the first cell module 211, providing an additional insulating layer. This multi-layer insulation design further reduces the risk of electrical failure and enhances the electrical safety of the battery device 10.

[0180] The stability of the entire adapter 222 is enhanced by using two layers of insulating supports 224. Each support not only provides electrical insulation but also acts as a physical support, helping to stabilize the position of the adapter panel 223 and related components.

[0181] As one possible implementation, the adapter 222 further includes a first adapter 225 for connecting the first battery cell module 211 and the first input terminal of the power distribution unit 221.

[0182] For example, the first adapter 225 provides a direct electrical connection path between the first cell module 211 and the first input terminal of the power distribution unit 221. This direct connection reduces resistance and energy loss in the circuit, improving the overall efficiency of the battery device 10.

[0183] The first adapter 225 provides a stable connection, reducing the risk of loosening or disconnection due to vibration or physical stress.

[0184] For example, the first input terminal can be a positive input terminal.

[0185] In one possible implementation, the first adapter 225 includes a first adapter segment 225a and a second adapter segment 225b that are connected to each other; along a first direction, the first adapter segment 225a is disposed on one side of the first battery cell module 211; the first adapter segment 225a and the first battery cell module 211 are connected.

[0186] The second transition section 225b is disposed between the first insulating bracket 224a and the second insulating bracket 224b, and the second transition section 225b is connected to the first input terminal.

[0187] The first direction intersects with the height direction of the battery device 10. The first direction is shown as the Y direction in FIG1.

[0188] For example, a first adapter section 225a is disposed on one side of the first cell module 211, and the first adapter section 225a is connected to the first cell module 211 via a power adapter bus. This connection ensures efficient power transmission from the first cell module 211 to the first adapter section 225, reducing power loss. A second adapter section 225b is disposed between the first insulating bracket 224a and the second insulating bracket 224b, and is connected to the first input terminal of the power distribution unit 221. With this arrangement, the second adapter section 225b provides a stable and secure path for transmitting power from the first adapter section 225a to the power distribution unit 221.

[0189] The second transition section 225b is disposed between the first insulating bracket 224a and the second insulating bracket 224b, which provides additional electrical insulation protection. This configuration reduces the risk of electrical interference and short circuits, improving the safety of the battery device 10.

[0190] With its clearly segmented design, the first adapter 225 simplifies electrical wiring, making assembly and maintenance easier. Technicians can more easily identify and resolve connection problems, reducing maintenance time and costs.

[0191] In some embodiments, the first transition section 225a and the second transition section 225b are power connectors. A power connector is a device for electrical or signal connection, and may be a connector or terminal block for power distribution or signal transmission. Power connectors are used to ensure stable and reliable transmission of power or signals.

[0192] In one feasible implementation, the second insulating bracket 224b has a first limiting groove 224c, and the portion of the first transition section 225a near the second transition section 225b is located in the first limiting groove 224c.

[0193] For example, the first limiting groove 224c provides a clear positioning and fixed position for the first transition section 225a. This design prevents the first transition section 225a from shifting or loosening during use, especially under vibration or impact conditions, while reducing assembly time and complexity and improving production efficiency.

[0194] By embedding a portion of the first adapter section 225a into the limiting groove, the stability of the electrical connection is enhanced. This fixing method reduces the risk of connection breakage or poor contact due to physical stress.

[0195] As one possible implementation, the adapter 222 further includes a second adapter 226 disposed between the first insulating support 224a and the second insulating support 224b.

[0196] The second adapter 226 is used to connect the first output terminal of the power distribution unit 221 and the connector 229.

[0197] For example, the second adapter 226 provides an efficient electrical transmission path by connecting the first output terminal of the power distribution unit 221 and the connector 229. This direct connection helps reduce losses during power transmission.

[0198] The second adapter 226 is located between the first insulating bracket 224a and the second insulating bracket 224b, with the insulating bracket 224b providing additional electrical insulation protection for the second adapter 226. This configuration reduces the risk of electrical interference and short circuits.

[0199] For example, the second adapter 226 can be used to connect the first output terminal of the power distribution unit 221 and the positive power connector. The first output terminal can be a positive output terminal.

[0200] In some embodiments, the second adapter 226 is a power connector. A power connector is a device for electrical or signal connection, and may be a connector or terminal block for power distribution or signal transmission. Power connectors are used to ensure stable and reliable transmission of power or signals.

[0201] As one possible implementation, the adapter 222 further includes a third adapter 227; the third adapter 227 is used to connect the second battery module 212 and the second input terminal of the power distribution unit 221.

[0202] For example, the third adapter 227 provides a direct electrical connection path between the second cell module 212 and the second input terminal of the power distribution unit 221. This direct connection reduces resistance and energy loss in the circuit, improving the overall efficiency of the battery device 10.

[0203] The third adapter 227 provides a stable connection, reducing the risk of loosening or disconnection due to vibration or physical stress.

[0204] As one possible implementation, the third adapter 227 includes a third adapter segment 227a and a fourth adapter segment 227b; along the first direction, the third adapter segment 227a is disposed on one side of the second cell module 212; the third adapter segment 227a is connected to the second cell module 212.

[0205] The fourth transition section 227b is disposed between the first insulating bracket 224a and the second insulating bracket 224b; the fourth transition section 227b is connected to the second input terminal of the power distribution unit 221.

[0206] For example, the third adapter section 227a is disposed on one side of the second cell module 212 and is connected to the second cell module 212 via a high-voltage connector. This connection ensures efficient power transfer from the second cell module 212 to the third adapter section 227, reducing power loss. The fourth adapter section 227b is disposed between the first insulating bracket 224a and the second insulating bracket 224b and is connected to the second input terminal of the power distribution unit 221. With this arrangement, the fourth adapter section 227b provides a stable and safe path for transferring power from the third adapter section 227a to the power distribution unit 221.

[0207] The fourth transition section 227b is disposed between the first insulating bracket 224a and the second insulating bracket 224b, which provides additional electrical insulation protection. This configuration reduces the risk of electrical interference and short circuits, improving the safety of the battery device 10.

[0208] With its clearly segmented design, the third adapter 227 simplifies electrical wiring, making assembly and maintenance easier. Technicians can more easily identify and resolve connection problems, reducing maintenance time and costs.

[0209] For example, the second input terminal can be a negative input terminal.

[0210] In some embodiments, the third transition section 227a and the fourth transition section 227b are power connectors. A power connector is a device for electrical or signal connection, and may be a connector or terminal block for power distribution or signal transmission. Power connectors are used to ensure stable and reliable transmission of power or signals.

[0211] In one feasible implementation, the second insulating bracket 224b has a second limiting groove 224d, and the portion of the third transition section 227a near the fourth transition section 227b is located in the second limiting groove 224d.

[0212] For example, the second limiting groove 224d provides a clear positioning and fixed position for the third transition section 227a. This design prevents the third transition section 227a from shifting or loosening during use, especially under vibration or impact conditions, while reducing assembly time and complexity and improving production efficiency.

[0213] By embedding a portion of the third transition section 227a into the limiting groove, the stability of the electrical connection is enhanced. This fixing method reduces the risk of connection breakage or poor contact due to physical stress.

[0214] As one possible implementation, the adapter 222 further includes a fourth adapter 228 disposed between the first insulating support 224a and the second insulating support 224b.

[0215] The fourth adapter 228 is used to connect the second output terminal of the power distribution unit 221 and the connector 229.

[0216] For example, the fourth adapter 228 provides an efficient electrical transmission path by connecting the second output terminal of the power distribution unit 221 and the connector 229. This direct connection helps reduce losses during power transmission.

[0217] The fourth adapter 228 is located between the first insulating bracket 224a and the second insulating bracket 224b, and the insulating bracket 224b provides additional electrical insulation protection for the fourth adapter 228. This configuration reduces the risk of electrical interference and short circuits.

[0218] For example, the fourth adapter 228 is used to connect the second output terminal of the power distribution unit 221 and the negative power connector. The second output terminal can be a negative output terminal.

[0219] In some embodiments, the fourth adapter 228 is a power connector. A power connector is a device for electrical or signal connection, and may be a connector or terminal block for power distribution or signal transmission. Power connectors are used to ensure stable and reliable transmission of power or signals.

[0220] For example, the positive circuit is connected to the positive input terminal of the power distribution module 220 via the first adapter 225, and is electrically connected to the positive power connector via the second adapter 226 through the positive output terminal of the power distribution module 220; the negative circuit is connected to the negative input terminal of the power distribution module via the third adapter 227, and is electrically connected to the negative power connector via the fourth adapter 228 through the negative output terminal of the power distribution module 220.

[0221] By placing the power distribution module 220 on the side of the battery cell 210 near the vehicle beam 300, and using the adapter 222 for high-voltage power transfer between the battery cell 210 and the power distribution module 221, compared to related technologies, it eliminates the need to place the power distribution module 220 inside the housing 100 or on the side of the battery cell 210. The battery device 10 provided in this embodiment fully utilizes the space of the battery device 10 and the space between the vehicle beam 300 and the battery device 10, improving space utilization. Simultaneously, placing the power distribution module 220 on the side of the battery cell 210 near the vehicle beam 300 facilitates the electrical connection between the vehicle 20's electrical components and the battery device 10, simplifying wiring.

[0222] For example, the second transition segment 225b, the second transition part 226, the fourth transition segment 227b, and the fourth transition part 228 are all disposed between the second insulating bracket 224b and the first insulating bracket 224a. In order to avoid short circuits between the second transition segment 225b, the second transition part 226, the fourth transition segment 227b, and the fourth transition part 228, the insulating bracket 224 is provided with a limiting groove and a limiting boss for assembling the second transition segment 225b, the second transition part 226, the fourth transition segment 227b, and the fourth transition part 228.

[0223] As one possible implementation, referring to FIG7, the battery device 10 further includes a connection structure 240 for connecting the first cell module 211 and the second cell module 212.

[0224] The connection structure 240 includes a first connection part 241 and a second connection part 242; the first connection part 241 and the second connection part 242 are electrically connected.

[0225] The first connecting part 241 is electrically connected to the first battery cell module 211; the second connecting part 242 is electrically connected to the second battery cell module 212.

[0226] For example, the first connection part 241 is electrically connected to the first cell module 211 and is responsible for receiving electrical energy from the first cell module 211. The second connection part 242 is electrically connected to the second cell module 212 and is connected to the first connection part 241 through an electrical connection, thereby realizing the series connection between the first cell module 211 and the second cell module 212.

[0227] By connecting the first cell module 211 and the second cell module 212 in series, the connection structure 240 can increase the total voltage output of the battery pack.

[0228] As one possible implementation, the battery device 10 also includes a voltage divider relay 243, which is disposed on the support 104; the voltage divider relay 243 is electrically connected to the power distribution unit 221.

[0229] The two ends of the voltage divider relay 243 are connected to the first connection part 241 and the second connection part 242, respectively.

[0230] For example, the voltage divider relay 243 is used to manage and regulate the voltage distribution in the battery device 10. By connecting to the first connection 241 and the second connection 242, it can monitor and control the voltage difference between the first cell module 211 and the second cell module 212, ensuring balanced operation of the first cell module 211 and the second cell module 212.

[0231] The voltage divider relay 243 can respond quickly to protect the battery device 10 when an abnormal voltage is detected. This protection mechanism helps prevent overvoltage or undervoltage conditions and reduces the risk of battery damage.

[0232] For example, the first connection part 241 includes a power transfer bus and a power connection bus that are connected to each other. The power transfer bus is connected to the first battery cell module 211, and the power connection bus is connected to the voltage divider relay 243.

[0233] The second connection part 242 includes a cross-layer transition bus and a power connection bus that are interconnected. The cross-layer transition bus is connected to the second cell module 212, and the power connection bus is connected to the voltage divider relay 243. The cross-layer transition bus is welded to the second cell module 212.

[0234] The battery device 10 provided in this application embodiment has a small voltage difference in the connection area between the first cell module 211 and the second cell module 212 due to the connection structure 240, resulting in a low risk of high voltage arcing.

[0235] As one possible implementation, the battery device 10 also includes a cold plate 250 disposed between the power distribution component 221 and the first cell module 211.

[0236] For example, the support member 104 is embedded in the side beam of the pallet 102, and the cold plate 250 is fixed to the side of the expansion beam of the support member 104 by rivets.

[0237] The power distribution component 221 is provided with a fixing groove. The power distribution component 221 is fixed to the mounting post of the cold plate 250 by bolts. In the installed state, there is an assembly gap between the lower surface of the power distribution component 221 and the upper surface of the square flow channel of the cold plate 250. Insulation medium such as insulation cotton can be added in the gap to prevent condensation between the power distribution component 221 and the cold plate 250. Alternatively, thermally conductive gel pads or other heat dissipation devices can be added in the assembly gap to cool the power distribution component 221.

[0238] As one feasible implementation, along the first direction, the first end of the adapter panel 223 is provided with a first boss 2231, and the first end of the adapter panel 223 is connected to the cold plate 250 through the first boss 2231.

[0239] The second end of the adapter panel 223 is provided with a second boss 2232, and the second end of the adapter panel 223 is connected to the fixed bracket 230 through the second boss 2232.

[0240] The first direction intersects with the height direction of the battery device 10.

[0241] The first direction is shown as the Y direction in Figure 1.

[0242] For example, the first end of the adapter panel 223 is provided with a first protrusion 2231, which is fixed to the mounting post of the cold plate 250 by bolts; the second protrusion 2232 at the second end of the adapter panel 223 is connected to the fixing bracket 230 by bolts, and the fixing bracket 230 is fixedly connected to the tray 102 by bolts, so as to realize the fixed installation of the adapter 222 and the battery device 10.

[0243] The use of bosses increases the contact area at the connection point, thereby dispersing stress and improving the strength of the mechanical connection. This helps prevent structural damage caused by stress concentration during use. By using a first boss 2231 and a second boss 2232 at both ends, the vertical displacement and vibration of the adapter panel 223 can be effectively controlled. This stable connection method helps maintain the overall stability of the battery device 10. In addition, the bosses can act as positioning elements to ensure that the adapter panel 223 is in the correct position during installation. This helps improve the assembly accuracy of the entire battery device 10 and reduces potential problems caused by installation errors.

[0244] As one possible implementation, referring to FIG8, the battery device 10 further includes an electrical connector 260, through which the first cell modules 211 located in two adjacent first receiving cavities 100a are connected.

[0245] Exemplarily, the electrical connector 260 is a component used to achieve electrical connection between the first cell modules 211. It can be a wire or busbar to ensure effective current transmission between the first cell modules 211. One first cell module 211 is installed in each first receiving cavity 100a, and the electrical connector 260 is used to connect the first cell modules 211 in adjacent first receiving cavities 100a to form a complete battery system.

[0246] Electrical connector 260 ensures efficient current transfer between the first cell modules 211, reduces resistance loss, and improves the overall efficiency of the battery device 10. By using electrical connector 260, the battery device 10 can be designed modularly. This design allows each first cell module 211 to be installed and replaced independently, simplifying the production and maintenance process.

[0247] In some embodiments, the electrical connector 260 is a high-voltage power bus. The high-voltage power bus is made of copper or aluminum and possesses conductivity and mechanical strength. It exhibits low resistance loss and is capable of efficiently transmitting large currents.

[0248] As one possible implementation, the electrical connector 260 has an electrical connection bend 261.

[0249] Along the first direction, the middle part of the electrical connector 260 is bent away from the two ends of the electrical connector 260 in the direction away from the avoidance part 101, forming the electrical connector bending part 261.

[0250] Along the height direction of the battery device 10, the electrical connection bend 261 and the clearance part 101 are correspondingly provided and their shapes are compatible.

[0251] The first direction intersects with the height direction of the battery device 10.

[0252] By way of example, the structural design of the electrical connection bend 261 allows the electrical connector 260 to provide additional space or flexibility without increasing the overall height. A clearance portion is provided to provide space for the electrical connection bend 261, allowing it to be arranged without interference.

[0253] In one feasible implementation, the electrical connector 260 includes at least two conductive base portions 262, one end of each of the at least two conductive base portions 262 is connected to the electrical connection bending portion 261, and the other end of each conductive base portion 262 is connected to an adjacent first battery cell module 211.

[0254] For example, one conductive substrate portion 262 is responsible for electrical connection with one of the cells in the adjacent first cell module 211, and the other conductive substrate portion 262 is responsible for electrical connection with the cells in the adjacent first cell module 211. The electrical connection bend portion 261 is used to connect the two conductive substrate portions 262 to realize the electrical connection between the adjacent first cell modules 211.

[0255] By directly connecting adjacent first cell modules 211, 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 211 can be installed and replaced independently, simplifying the maintenance process.

[0256] In one feasible implementation, the conductive substrate portion 262 includes a conductive plate 263, the conductive plate 263 is provided with a recess 264, and the terminal post of the end cell 213 of the first cell module 211 located at the end is welded to the recess 264.

[0257] For example, the conductive plate 263 is a component of the conductive substrate portion 262. The recess 264 is a specific area on the conductive plate 263 for accommodating the terminal post of the first battery cell module 211. The presence of the recess 264 ensures that the terminal post can be securely embedded in the conductive plate 263, providing a stable electrical connection.

[0258] Since the electrode post needs to be welded to the conductive plate 263, the recessed portion 264 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 design of the recessed portion 264 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 263 more stable, reducing the risk of loosening due to vibration or impact.

[0259] As one possible implementation, the electrical connection bend 261 includes a first segment 261a, a second segment 261b, and a third segment 261c connected in sequence.

[0260] The first segment 261a and the third segment 261c both extend along the height direction of the battery device 10, and the second segment 261b extends along the first direction; the first segment 261a and the third segment 261c are connected to the conductive substrate portion 262.

[0261] For example, the first segment 261a and the third segment 261c extend along the height of the battery device 10 and are responsible for connecting to the conductive substrate portion 262 to ensure effective current transmission between the first cell modules 211.

[0262] By designing the electrical connection bend 261 to extend in different directions, the electrical connection bend 261 adapts to the avoidance structure, reducing the risk of physical interference and ensuring the integrity and functionality of the battery device 10.

[0263] Furthermore, by designing the electrical connection bend 261 in multiple segments, mechanical stability is improved, and the risk of connection loosening or breakage due to vibration or mechanical stress is reduced.

[0264] As one possible implementation, the outer periphery of the electrical connection bend 261 is wrapped with an insulating layer.

[0265] For example, the insulating layer effectively prevents accidental contact between the conductive connection and other metal parts or electrical components, reducing the risk of short circuits and electric shock. The insulating layer provides additional protection against environmental factors such as moisture, dust, and chemicals, improving the long-term reliability of the electrical connection 260.

[0266] In some embodiments, the conductive connection portion is immersed in liquid epoxy resin, and the epoxy resin cures to form an insulating layer.

[0267] In other embodiments, the outer periphery of the conductive connection is wrapped with mica and polyimide. The mica and polyimide form an insulating layer.

[0268] As one possible implementation, the electrical connector 260 is a stamped part or a welded part.

[0269] In some embodiments, the electrical connector 260 is a stamped part. A stamped part is cut and formed from a 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 260, reducing unit production costs. Stamped parts produced by the stamping process exhibit high consistency and dimensional accuracy.

[0270] In other embodiments, the electrical connector 260 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.

[0271] For example, the electrical connector 260 can be a stamped aluminum part.

[0272] 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, For use in a vehicle (20), the battery device (10) includes: The box body (100) has a clearance portion (101) for clearing the beam (300) of the vehicle (20); the box body (100) has a first receiving cavity (100a) located on at least one side of the clearance portion (101); Multiple battery cells (210) are located in the first receiving cavity (100a); A power distribution module (220) is electrically connected to the battery cell (210); the power distribution module (220) is disposed on top of the battery cell (210) along the height direction of the battery device (10).

2. The battery device (10) according to claim 1, characterized in that, The power distribution module (220) includes a power distribution component (221), which is located in the first receiving cavity (100a) and is electrically connected to the battery cell (210).

3. The battery device (10) according to claim 2, characterized in that, The power distribution module (220) also includes an adapter (222), which is disposed on the top of the battery cell (210); the battery cell (210) is electrically connected to the power distribution module (221) through the adapter (222).

4. The battery device (10) according to claim 3, characterized in that, Multiple battery cells (210) form a first battery cell module (211), and the number of the first battery cell modules (211) is multiple; The number of the first receiving cavity (100a) is multiple, and the first receiving cavity (100a) is used to receive at least one of the first battery cell modules (211).

5. The battery device (10) according to claim 4, characterized in that, It also includes an electrical connector (260) through which the first cell modules (211) located in two adjacent first receiving cavities (100a) are connected.

6. The battery device (10) according to claim 5, characterized in that, The electrical connector (260) has an electrical connection bend (261); Along the first direction, the middle part of the electrical connector (260) is bent away from the clearance part (101) relative to both ends of the electrical connector (260) to form the electrical connection bend part (261); Along the height direction of the battery device (10), the electrical connection bend (261) and the clearance part (101) are correspondingly provided and their shapes are compatible; The first direction intersects with the height direction of the battery device (10).

7. The battery device (10) according to claim 6, characterized in that, The electrical connector (260) includes at least two conductive base portions (262), one end of each of the at least two conductive base portions (262) is connected to the electrical connection bend portion (261), and the other end of each conductive base portion (262) is connected to the adjacent first battery cell module (211).

8. The battery device (10) according to claim 7, characterized in that, The conductive substrate (262) includes a conductive plate (263), the conductive plate (263) is provided with a recess (264), and the pole of the end cell (213) of the first cell module (211) located at the end is welded to the recess (264).

9. The battery device (10) according to claim 7, characterized in that, The electrical connection bend (261) includes a first segment (261a), a second segment (261b), and a third segment (261c) connected in sequence; The first segment (261a) and the third segment (261c) both extend along the height direction of the battery device (10), and the second segment (261b) extends along the first direction; the first segment (261a) and the third segment (261c) are connected to the conductive substrate (262).

10. The battery device (10) according to claim 6, characterized in that, The outer periphery of the electrical connection bend (261) is wrapped with an insulating layer.

11. The battery device (10) according to any one of claims 5-9, characterized in that, The electrical connector (260) is a stamped part or a welded part.

12. The battery device (10) according to any one of claims 4-11, characterized in that, The housing (100) also forms a second receiving cavity (100b); along the height direction of the battery device (10), the first receiving cavity (100a) and the second receiving cavity (100b) are arranged in sequence, with the first receiving cavity (100a) located on top of the second receiving cavity (100b).

13. The battery device (10) according to claim 12, characterized in that, The plurality of first receiving cavities (100a) are connected through the second receiving cavity (100b).

14. The battery device (10) according to claim 12, characterized in that, It also includes a second battery cell module (212); the second battery cell module (212) is located in the second receiving cavity (100b).

15. The battery device (10) according to claim 14, characterized in that, The power distribution module (220) includes a connector (229), which is electrically connected to the power distribution component (221); the connector (229) is disposed on the top of the battery cell (210).

16. The battery device (10) according to claim 15, characterized in that, The adapter (222) also includes an adapter panel (223), which is disposed on the top of the battery cell (210); the connector (229) is disposed on the side of the adapter panel (223) away from the battery cell (210).

17. The battery device (10) according to claim 16, characterized in that, The adapter (222) further includes an insulating bracket (224) disposed between the adapter panel (223) and the first battery cell module (211).

18. The battery device (10) according to claim 17, characterized in that, The insulating bracket (224) includes a first insulating bracket (224a) and a second insulating bracket (224b). The first insulating bracket (224a) is disposed on the side of the adapter panel (223) near the first cell module (211). The second insulating bracket (224b) is disposed on the side of the first insulating bracket (224a) near the first cell module (211).

19. The battery device (10) according to claim 18, characterized in that, The adapter (222) further includes a first adapter (225) for connecting the first battery cell module (211) and the first input terminal of the power distribution unit (221).

20. The battery device (10) according to claim 19, characterized in that, The first adapter (225) includes a first adapter segment (225a) and a second adapter segment (225b) that are connected to each other; along a first direction, the first adapter segment (225a) is disposed on one side of the first battery cell module (211); the first adapter segment (225a) and the first battery cell module (211) are connected. The second adapter section (225b) is disposed between the first insulating bracket (224a) and the second insulating bracket (224b), and the second adapter section (225b) is connected to the first input terminal; The first direction intersects with the height direction of the battery device (10).

21. The battery device (10) according to claim 20, characterized in that, The second insulating bracket (224b) has a first limiting groove (224c), and the portion of the first transition section (225a) near the second transition section (225b) is located in the first limiting groove (224c).

22. The battery device (10) according to claim 21, characterized in that, The adapter (222) further includes a second adapter (226), which is disposed between the first insulating bracket (224a) and the second insulating bracket (224b); The second adapter (226) is used to connect the first output terminal of the power distribution unit (221) and the connector (229).

23. The battery device (10) according to claim 22, characterized in that, The adapter (222) further includes a third adapter (227); the third adapter (227) is used to connect the second battery cell module (212) and the second input terminal of the power distribution unit (221).

24. The battery device (10) according to claim 23, characterized in that, The third adapter (227) includes a third adapter segment (227a) and a fourth adapter segment (227b); along the first direction, the third adapter segment (227a) is disposed on one side of the second cell module (212); the third adapter segment (227a) and the second cell module (212) are connected; The fourth transition section (227b) is disposed between the first insulating bracket (224a) and the second insulating bracket (224b); the fourth transition section (227b) is connected to the second input terminal of the power distribution unit (221).

25. The battery device (10) according to claim 24, characterized in that, The second insulating bracket (224b) has a second limiting groove (224d), and the portion of the third transition section (227a) near the fourth transition section (227b) is located in the second limiting groove (224d).

26. The battery device (10) according to claim 25, characterized in that, The adapter (222) further includes a fourth adapter (228), which is disposed between the first insulating bracket (224a) and the second insulating bracket (224b); The fourth adapter (228) is used to connect the second output terminal of the power distribution unit (221) and the connector (229).

27. The battery device (10) according to any one of claims 14 to 26, characterized in that, It also includes a support member (104) disposed between the first cell module (211) and the second cell module (212), and the support member (104) is connected to at least one side wall of the housing (100).

28. The battery device (10) according to claim 27, characterized in that, It also includes a connection structure (240) for connecting the first battery cell module (211) and the second battery cell module (212); The connection structure (240) includes a first connection part (241) and a second connection part (242); the first connection part (241) and the second connection part (242) are electrically connected; The first connecting part (241) is electrically connected to the first battery cell module (211); the second connecting part (242) is electrically connected to the second battery cell module (212).

29. The battery device (10) according to claim 28, characterized in that, It also includes a voltage divider relay (243), which is disposed on the support (104); the voltage divider relay (243) and the power distribution unit (221) are electrically connected; The two ends of the voltage divider relay (243) are respectively connected to the first connecting part (241) and the second connecting part (242).

30. The battery device (10) according to any one of claims 16 to 26, characterized in that, The adapter (222) also includes a fixing bracket (230) that connects the adapter panel (223) and the housing (100).

31. The battery device (10) according to claim 30, characterized in that, It also includes a cold plate (250) disposed between the power distribution component (221) and the first battery cell module (211).

32. The battery device (10) according to claim 31, characterized in that, Along the first direction, the first end of the adapter panel (223) is provided with a first boss (2231), and the first end of the adapter panel (223) is connected to the cold plate (250) through the first boss (2231); The second end of the adapter panel (223) is provided with a second boss (2232), and the second end of the adapter panel (223) is connected to the fixed bracket (230) through the second boss (2232); The first direction intersects with the height direction of the battery device (10).

33. The battery device (10) according to any one of claims 1-11, characterized in that, The box (100) includes a cover (103) and a tray (102) that are connected to each other; The cover (103) has the clearance portion (101).

34. The battery device (10) according to claim 33, characterized in that, The tray (102) is used to connect to the beam (300) of the vehicle (20), and the cover (103) is located between the tray (102) and the beam (300) of the vehicle (20).

35. The battery device (10) according to claim 34, characterized in that, The clearance portion (101) is a clearance groove; along the second direction, the clearance groove penetrates the cover (103); The second direction intersects with the height direction of the battery device (10).

36. The battery device (10) according to claim 35, characterized in that, The number of the avoidance parts (101) is multiple. Along the first direction, the multiple avoidance parts (101) are spaced apart. The multiple avoidance parts (101) are respectively used to avoid multiple beams (300) of the vehicle (20). The first direction intersects with the second direction.

37. A vehicle, characterized in that, include: Vehicle beam (300); The battery device (10) according to any one of claims 1-36, wherein the battery device (10) is connected to the vehicle beam (300); and the avoidance part (101) of the battery device (10) is used to avoid the vehicle beam (300).

38. The vehicle according to claim 37, characterized in that, The beam (300) includes a crossbeam (340) extending along the width direction of the vehicle (20); The crossbeam (340) includes a first crossbeam (350) and a second crossbeam (360), which are spaced apart along the length of the vehicle (20); the housing (100) of the battery device (10) is connected to the first crossbeam (350) and the second crossbeam (360).

39. The vehicle according to claim 37, characterized in that, The beam (300) includes a longitudinal beam (310) extending along the length of the vehicle (20); at least a portion of the longitudinal beam (310) is located in the clearance portion (101).

40. The vehicle according to claim 38, characterized in that, The vehicle beam (300) further includes at least two mounting beams (330), which are located on both sides of the first crossbeam (350) and the second crossbeam (360) along the width direction of the vehicle (20) and are respectively connected to the first crossbeam (350) and the second crossbeam (360), and the box body (100) is connected to the mounting beams (330).

41. The vehicle according to claim 37, 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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