Battery device and vehicle

Abstract

The embodiment of the invention provides a battery device and a vehicle. Relates to the technical field of batteries. The battery device comprises a box body, a battery cell and a power distribution module, the box body is provided with an avoiding part which is used for avoiding a vehicle beam of the vehicle; the box body is provided with a first containing cavity, and the first containing cavity is located on at least one side of the avoiding part. The plurality of battery cells are positioned in the first accommodating cavity; the power distribution module is electrically connected with the battery cell; the power distribution module is arranged at the top of the battery cell along the height direction of the battery device. The avoiding part is designed in the box body and allows the battery device to fully utilize the space below the chassis under the condition that the beam structure is not influenced, so that the space utilization rate is increased. By arranging the power distribution module at the top of the battery cell, the space near the vehicle beam can be effectively utilized, so that an extra reserved space in the battery device for accommodating the power distribution module can be avoided, and the space utilization rate of the battery device is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery device and a vehicle. Background Art

[0002] In related art, a vehicle's battery assembly is mounted beneath the vehicle's chassis. The assembly is connected to the vehicle's beams, leveraging the beam's structural strength to protect the battery pack. The assembly includes a housing that forms a compartment for housing the batteries.

[0003] However, existing battery devices have the problem of insufficient space utilization. Summary of the Invention

[0004] Embodiments of the present application provide a battery device and a vehicle, which improve the space utilization of the battery device.

[0005] In a first aspect, an embodiment of the present application provides a battery device for a vehicle, the battery device comprising:

[0006] The box body has an avoidance portion, which is used to avoid the vehicle beam; the box body has a first accommodating cavity, which is located on at least one side of the avoidance portion;

[0007] A plurality of battery cells are located in the first accommodating cavity;

[0008] The power distribution module is electrically connected to the battery cell; along the height direction of the battery device, the power distribution module is arranged on the top of the battery cell.

[0009] In some embodiments of the present application, the power distribution module includes a power distribution component, which is located in the first accommodating cavity and is electrically connected to the battery cell.

[0010] In some embodiments of the present application, the power distribution module further includes an adapter, which is disposed on the top of the battery cell; the battery cell is electrically connected to the power distribution module via the adapter.

[0011] In some embodiments of the present application, the power distribution module includes a connector, which is electrically connected to the power distribution component; the connector is arranged on the top of the battery cell.

[0012] In some embodiments of the present application, the adapter also includes an adapter panel, which is arranged on the top of the battery cell; a connector is provided on the side of the adapter panel facing away from the battery cell.

[0013] In some embodiments of the present application, a plurality of battery cells form a first battery cell module, and the number of the first battery cell modules is multiple.

[0014] There are multiple first accommodating cavities, and the first accommodating cavities accommodate at least one first battery cell module.

[0015] In some embodiments of the present application, the box body further forms a second accommodating cavity; along the height direction of the battery device, the first accommodating cavity and the second accommodating cavity are arranged in sequence, and the first accommodating cavity is located on the top of the second accommodating cavity.

[0016] In some embodiments of the present application, multiple first accommodating cavities are connected through the second accommodating cavity.

[0017] In some embodiments of the present application, the battery device further includes an electrical connector, and the first battery cell modules located in two adjacent first accommodating cavities are connected via the electrical connector.

[0018] In some embodiments of the present application, the electrical connector has an electrical connection bending portion.

[0019] Along the first direction, the middle portion of the electrical connector is bent relative to the two ends of the electrical connector in a direction away from the avoidance portion to form an electrical connection bending portion.

[0020] Along the height direction of the battery device, the electrical connection bending portion and the avoiding portion are correspondingly arranged and have matching shapes.

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

[0022] In some embodiments of the present application, the electrical connector includes at least two conductive base parts, one end of the at least two conductive base parts is connected to the electrical connection bending part, and the other end of the conductive base parts is respectively connected to adjacent first battery core modules.

[0023] In some embodiments of the present application, the conductive base portion includes a conductive plate, the conductive plate is provided with a recessed portion, and the pole of the end cell of the first cell module located at the end is welded to the recessed portion.

[0024] In some embodiments of the present application, the electrical connection bend portion includes a first section, a second section, and a third section that are connected in sequence.

[0025] The first section and the third section both extend along the height direction of the battery device, and the second section extends along the first direction; the first section and the third section are connected to the conductive base portion.

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

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

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

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

[0030] In some embodiments of the present application, the adapter also includes a fixing bracket, which connects the adapter panel and the box.

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

[0032] In some embodiments of the present application, the insulating bracket includes a first insulating bracket and a second insulating bracket. The first insulating bracket is arranged on the side of the adapter panel close to the first battery cell module; the second insulating bracket is arranged on the side of the first insulating bracket close to the first battery cell module.

[0033] In some embodiments of the present application, the adapter further includes a first adapter portion, which is used to connect the first battery cell module and the first input end of the distribution component.

[0034] In some embodiments of the present application, the first transition portion includes a first transition section and a second transition section connected to each other; along the first direction, the first transition section is arranged on one side of the first battery cell module; the first transition section is connected to the first battery cell module.

[0035] The second transfer section is provided between the first insulating support and the second insulating support, and the second transfer section is connected to the first input end;

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

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

[0038] In some embodiments of the present application, the adapter further includes a second adapter portion, which is disposed between the first insulating bracket and the second insulating bracket.

[0039] The second adapter portion is used to connect the first output end of the power distribution component and the connector.

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

[0041] In some embodiments of the present application, the third transfer portion includes a third transfer section and a fourth transfer section; along the first direction, the third transfer section is arranged on one side of the second battery cell module; and the third transfer section is connected to the second battery cell module.

[0042] The fourth transfer section is arranged between the first insulating support and the second insulating support; the fourth transfer section is connected to the second input end of the distribution component.

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

[0044] In some embodiments of the present application, the adapter further includes a fourth adapter portion, which is disposed between the first insulating bracket and the second insulating bracket.

[0045] The fourth adapter portion is used to connect the second output end of the power distribution component and the connector.

[0046] In some embodiments of the present application, the battery device further includes a connection structure, which is used to connect the first battery cell module and the second battery 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 portion is electrically connected to the first battery cell module; the second connecting portion is electrically connected to the second battery cell module.

[0049] In some embodiments of the present application, the battery device further includes a voltage-dividing relay, which is disposed on the supporting member; the voltage-dividing relay is electrically connected to the power distribution member.

[0050] Two ends of the voltage-dividing relay are connected to the first connecting part and the second connecting part respectively.

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

[0052] In some embodiments of the present application, along the first direction, a first boss is provided at the first end of the adapter panel, and the first end of the adapter panel is connected to the cold plate via 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 fixing bracket via the second boss.

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

[0055] In some embodiments of the present application, the box includes a cover and a tray that are connected to each other.

[0056] The cover body is formed with an escape portion.

[0057] In some embodiments of the present application, the pallet is used to be connected to the beam of the vehicle, and the cover is located between the pallet and the beam of the vehicle.

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

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

[0060] In some embodiments of the present application, there are multiple avoidance portions, which are arranged at intervals along the first direction. The multiple avoidance portions are respectively used to avoid multiple beams of the vehicle, and the first direction intersects with the second direction.

[0061] In a second aspect, an embodiment of the present application provides a vehicle, comprising:

[0062] Car beam;

[0063] The battery device is connected to the vehicle beam; the avoidance portion of the battery device is used to avoid the vehicle beam.

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

[0065] The cross beam comprises a first cross beam and a second cross beam, and the first cross beam and the second cross beam are arranged at intervals along the length direction of the vehicle; and the box body of the battery device is connected to the first cross beam and the second cross beam.

[0066] In some embodiments of the present application, the vehicle beam includes a longitudinal beam extending along the length direction of the vehicle; at least a portion of the longitudinal beam is located in the avoidance portion.

[0067] In some embodiments of the present application, the vehicle beam also includes at least two mounting beams, which are respectively located on both sides of the first cross beam and the second cross beam along the vehicle width direction and are respectively connected to the first cross beam and the second cross beam, and the box body is connected to the mounting beams.

[0068] In some embodiments of the present application, there are multiple battery devices, and the multiple battery devices are arranged in sequence along the length direction of the vehicle.

[0069] The battery device and vehicle provided in embodiments of the present application include a housing, battery cells, and a power distribution module. The housing has a clearance portion for clearing the vehicle's beams; the housing has a first accommodating cavity located on at least one side of the clearance portion; multiple battery cells are located in the first accommodating cavity; the power distribution module is electrically connected to the battery cells; and the power distribution module is positioned on top of the battery cells along the height of the battery device.

[0070] By designing an avoidance portion in the box, the battery device can adapt to the structure of the vehicle chassis. The design of the avoidance portion allows the battery device to fully utilize the space under the vehicle chassis without affecting the vehicle beam structure. At the same time, the distribution module is located on the top of the battery cell, which avoids the need to reserve additional space in the battery device to accommodate the distribution module, thereby making the design of the battery device more compact, effectively utilizing the limited space inside the battery device, and improving the space utilization rate of the battery device. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0072] Figure 1 A schematic diagram of the structure of the battery device and the beam provided in an embodiment of the present application;

[0073] Figure 2 A schematic diagram of the structure of a battery device provided in an embodiment of the present application;

[0074] Figure 3 A schematic diagram of a partial structure of a battery device provided in an embodiment of the present application;

[0075] Figure 4 Schematic diagram of the structure of the adapter of the battery device provided in the embodiment of the present application Figure 1 ;

[0076] Figure 5 Schematic diagram of the structure of the adapter of the battery device provided in the embodiment of the present application Figure 2 ;

[0077] Figure 6 A schematic diagram of the structure of the battery cell and power distribution module of the battery device provided in an embodiment of the present application;

[0078] Figure 7 A schematic diagram of the structure of the battery cell and connection structure of the battery device provided in an embodiment of the present application;

[0079] Figure 8 A schematic structural diagram of the electrical connector and battery cells of the battery device provided in an embodiment of the present application.

[0080] Description of reference numerals:

[0081] 10: Battery device;

[0082] 100: box body; 101: avoidance portion; 102: tray; 103: cover; 104: supporting member;

[0083] 210: battery cell; 211: first battery cell module; 212: second battery cell module; 213: end battery cell;

[0084] 220: power distribution module; 221: power distribution component; 222: adapter; 223: adapter panel; 224: insulation bracket; 224a: first insulation bracket; 224b: second insulation bracket; 224c: first limiting groove; 224d: second limiting groove;

[0085] 225: First transition portion; 225a: First transition section; 225b: Second transition section; 226: Second transition portion; 227: Third transition portion; 227a: Third transition section; 227b: Fourth transition section; 228: Fourth transition portion; 229: Connector;

[0086] 230: fixed bracket;

[0087] 240: connection structure; 241: first connection part; 242: second connection part; 243: voltage divider relay;

[0088] 250: cold plate;

[0089] 260: electrical connector; 261: electrical connection bend; 261a: first section; 261b: second section; 261c: third section; 262: conductive base; 263: conductive plate; 264: recessed portion;

[0090] 300: vehicle beam; 310: longitudinal beam; 330: mounting beam; 340: cross beam; 350: first cross beam; 360: second cross beam.

[0091] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0092] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0093] In modern electric vehicle technology, methods for replenishing vehicle energy include fast charging and battery swapping. Fast charging refers to the method of charging the electric vehicle battery in a relatively short time using a high-power charging station. Battery swapping replenishes energy by replacing the vehicle battery, rather than charging the battery.

[0094] In related technologies, fast-charging vehicles use rectangular battery packs within a battery compartment designed into the vehicle chassis or body structure. Brackets and fixtures are used to secure the battery pack within the compartment, ensuring it does not move while the vehicle is in motion.

[0095] Battery units are typically designed in a rectangular shape to facilitate installation within a battery compartment in a vehicle's chassis or body structure. However, this shape may not always perfectly match the available space in the vehicle, resulting in inefficient space utilization.

[0096] A battery unit consists of a battery case and a distribution box. The distribution box is located inside the battery case to protect it from external environmental factors such as moisture, dust, and physical damage. However, this design can consume valuable space within the battery unit. The space required for the distribution box and associated electrical components can limit the arrangement and number of battery cells, reducing overall energy density and space utilization.

[0097] In summary, existing battery devices have the problem of insufficient space utilization.

[0098] In view of this, embodiments of the present application provide a battery device and vehicle, comprising a housing, battery cells, and a power distribution module. The housing has a clearance portion for clearing the vehicle's beams; the housing has a first accommodating cavity located on at least one side of the clearance portion; a plurality of battery cells are located in the first accommodating cavity; the power distribution module is electrically connected to the battery cells; and the power distribution module is disposed on top of the battery cells along the height of the battery device.

[0099] By designing an avoidance portion in the box, the battery device can adapt to the structure of the vehicle chassis. The design of the avoidance portion allows the battery device to fully utilize the space under the vehicle chassis without affecting the vehicle beam structure. At the same time, the distribution module is located on the top of the battery cell, which avoids the need to reserve additional space in the battery device to accommodate the distribution module, thereby making the design of the battery device more compact, effectively utilizing the limited space inside the battery device, and improving the space utilization rate of the battery device.

[0100] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0101] First, refer to Figure 1 As shown, an embodiment of the present application provides a vehicle, comprising:

[0102] Car beam 300;

[0103] The battery device 10 is connected to the vehicle beam 300 ; the avoidance portion 101 of the battery device 10 is used to avoid the vehicle beam 300 .

[0104] Illustratively, the beam 300 is the primary load-bearing structure of the vehicle, responsible for supporting the weight of the vehicle, including the vehicle body, passengers, and cargo. The beam 300 provides the necessary rigidity and strength to ensure that the vehicle maintains structural integrity under various driving conditions.

[0105] The function of the battery device 10 is to store electrical energy for use by the vehicle's electric motor and other electrical systems to enable the vehicle to accelerate, decelerate, and maintain speed.

[0106] By connecting the battery device 10 to the vehicle beam 300, the available space under the vehicle chassis can be maximized. This design avoids space waste and allows the vehicle to accommodate more battery cells within a limited space.

[0107] The design of the avoidance portion 101 allows the battery device 10 to fully utilize the space under the vehicle chassis without affecting the structure of the vehicle beam 300.

[0108] As a feasible implementation, the vehicle beam 300 includes a cross beam 340 extending in the vehicle width direction.

[0109] The crossbeam 340 includes a first crossbeam 350 and a second crossbeam 360. The first crossbeam 350 and the second crossbeam 360 are spaced apart along the length direction of the vehicle. The box 100 of the battery device 10 is connected to the first crossbeam 350 and the second crossbeam 360. Figure 1 The direction indicated by X. The width direction of the vehicle refers to Figure 1 The direction shown in Y.

[0110] For example, the battery assembly 10 is designed to be located between the first cross member 350 and the second cross member 360. This layout utilizes the space between the cross members 340, enabling the battery assembly 10 to be compactly integrated into the vehicle chassis. By placing the battery assembly 10 between the cross members 340, designers can maximize the available space under the chassis, improving the battery's energy density and the vehicle's range.

[0111] As a feasible implementation, the vehicle beam 300 includes a longitudinal beam 310 extending along the length direction of the vehicle; at least a portion of the longitudinal beam 310 is located in the avoidance portion 101 .

[0112] Illustratively, the longitudinal beam 310 is located in the escape groove of the escape portion 101 of the battery device 10. The escape groove is used to accommodate the longitudinal beam 310, allowing the battery device 10 to be seamlessly integrated with the vehicle chassis. This ensures that the battery device 10 is tightly integrated with the vehicle chassis without affecting the structural function of the longitudinal beam 310.

[0113] As a feasible embodiment, the vehicle beam 300 also includes at least two mounting beams 330, which are respectively located on both sides of the first cross beam 350 and the second cross beam 360 along the vehicle width direction and are respectively connected to the first cross beam 350 and the second cross beam 360, and the box body 100 is connected to the mounting beams 330.

[0114] For example, at least two mounting beams 330 are respectively located on both sides of the first cross beam 350 and the second cross beam 360 . This arrangement may be to provide better support and stability so that the box 100 can be firmly connected to the vehicle structure.

[0115] As a feasible implementation, there are multiple battery devices 10 , and the multiple battery devices 10 are arranged in sequence along the length direction of the vehicle.

[0116] For example, by arranging multiple battery units 10 in sequence along the length of the vehicle, the available space under the chassis can be maximized. This layout allows for a more compact battery system, improving the vehicle's energy density. The sequential arrangement of multiple battery units 10 can significantly increase the total battery capacity, thereby extending the vehicle's range.

[0117] Since the function of the battery device 10 is to store electrical energy for use by the motor and other electrical systems of the vehicle, the battery device 10 will be described in detail below.

[0118] Secondly, refer to Figure 1 and Figure 2 As shown, an embodiment of the present application provides a battery device 10 for a vehicle, the battery device 10 comprising:

[0119] The box body 100 has an avoidance portion 101, which is used to avoid the vehicle beam 300; the box body 100 has a first accommodating cavity, which is located on at least one side of the avoidance portion 101;

[0120] Battery cells 210, multiple battery cells 210 are located in the first accommodation cavity;

[0121] 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 .

[0122] For example, the battery cell 210 is the core component of the battery device 10, responsible for storing and providing electrical energy. The avoidance portion 101 is designed to avoid structures such as the beam 300 in the vehicle chassis. The beam 300 is a critical load-bearing and structural component of the vehicle chassis, and the battery device 10 must be installed without affecting the function of the beam 300.

[0123] By designing an avoidance portion 101 in the box body 100, the battery device 10 can adapt to the structure of the vehicle chassis. The design of the avoidance portion 101 allows the battery device 10 to fully utilize the space under the chassis without affecting the structure of the vehicle beam 300, thereby improving space utilization.

[0124] By placing the power distribution module 220 on the top of the battery cell 210, Figure 1 As shown, the power distribution module 220 is disposed on the side of the battery cell 210 that is close to the vehicle beam 300, i.e., on top of the battery cell 210. This effectively utilizes the space near the vehicle beam 300 and avoids the need to reserve additional space in the battery device 10 to accommodate the power distribution module 220. This makes the design of the battery device 10 more compact, effectively utilizes the limited space within the battery device 10, and improves the space utilization of the battery device 10. At the same time, it avoids the need to reserve excessive redundant space for electrical connections in the battery device 10. This design enables the battery device 10 to accommodate more battery cells 210 within a limited volume, thereby improving the battery's energy density.

[0125] As a feasible implementation, the box body 100 includes a cover body 103 and a tray 102 that are connected to each other.

[0126] The cover 103 is formed with an escape portion 101 .

[0127] Illustratively, the tray 102 is the bottom structure of the battery device 10, used to support and secure the battery cells 210. The tray 102 has strength and rigidity to withstand the weight of the battery cells 210 and the vibration and impact generated during vehicle travel. The cover 103 is the top structure of the battery device 10, used to cover and protect the battery cells 210. The cover 103 has sealing properties to prevent water, dust, and other external contaminants from entering the interior of the battery device 10. The tray 102 and the cover 103 are connected to each other to form a complete box 100 structure. The tray 102 and the cover 103 can be connected by bolts, snaps, or welding.

[0128] The combination of the tray 102 and the cover 103 provides a closed structure, which enhances the overall strength and rigidity of the battery device 10. This design can effectively resist external shocks and vibrations and protect the internal battery cells 210.

[0129] The cover 103 is used to form the avoidance portion 101 .

[0130] As a feasible implementation, the tray 102 is used to be connected to the vehicle beam 300 , and the cover 103 is located between the tray 102 and the vehicle beam 300 .

[0131] For example, the tray 102 is directly connected to the vehicle beam 300, providing a stable mounting base for the battery assembly 10. This ensures the battery assembly 10 remains stable during vehicle operation, reducing displacement or damage caused by vibration or impact. A cover 103 is located between the tray 102 and the vehicle beam 300 and provides additional protection for the battery cells 210.

[0132] As a feasible implementation, the cover body 103 forms a first accommodating cavity.

[0133] Illustratively, the first accommodating cavity formed by the cover 103 is used to provide physical protection for the battery cell 210 , and is used to protect the internal battery cell 210 and the power distribution module 220 from the influence of the external environment, such as dust, moisture and physical impact.

[0134] As a feasible implementation, the box body 100 is further formed with a second accommodating cavity; along the height direction of the battery device 10, the first accommodating cavity and the second accommodating cavity are arranged in sequence, and the first accommodating cavity is located on the top of the second accommodating cavity.

[0135] In some embodiments, the tray 102 is formed with a second accommodating cavity, and the cavity opening of the second accommodating cavity faces the cover 103 .

[0136] As a feasible implementation, a plurality of battery cells 210 form a first battery cell module 211 , and the number of the first battery cell modules 211 is plural.

[0137] There are multiple first accommodating cavities, each accommodating at least one first battery cell module 211 .

[0138] For example, the design of the first accommodating cavity accommodating at least the first battery cell module 211 can increase the battery capacity of the battery device 10 and improve the reliability and performance of the battery device 10 .

[0139] For example, multiple first accommodating cavities are used to accommodate first battery cell modules 211. The design of each first accommodating cavity 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 to a first accommodating cavity, ensuring that each first battery cell module 211 has a dedicated space for fixation and protection.

[0140] As a feasible implementation, the battery device 10 further includes a second battery cell module 212 ; the second battery cell module 212 is located in the second accommodation cavity.

[0141] For example, referring to Figure 1In the direction indicated by Z, the first and second battery modules 211, 212 are stacked. This stacking of the first and second battery modules 211, 212 fully utilizes vertical space, allowing the battery device 10 to accommodate more first and second battery modules 211, 212 without increasing horizontal footprint, thereby improving overall energy density. By distributing the first and second battery modules 211, 212 in different cavities, heat management can be more effectively achieved.

[0142] Illustratively, the design of the second accommodating cavity enables the tray 102 to accommodate more second battery cell modules 212 , thereby improving the volume energy density of the battery device 10 and fully utilizing the space between the tray 102 and the cover 103 .

[0143] For example, the first cell module 211 includes a plurality of cells 210, and the plurality of cells 210 are arranged along Figure 1 The cells 210 are arranged in sequence in the direction indicated by Y, and adjacent cells 210 are electrically connected via connecting sheets.

[0144] The second battery cell module 212 includes a plurality of battery cell units. Figure 1 The cells are arranged in sequence in the direction shown by Y, and adjacent battery cells are electrically connected via connecting sheets.

[0145] As a feasible implementation, the plurality of first accommodating cavities are connected through the second accommodating cavity.

[0146] For example, by interconnecting the first accommodating cavities through the second accommodating cavity, electrical connections can be established between the first cell module 211 and the second cell module 212. This integrated design simplifies the wiring and connections of the battery device 10, improving the overall efficiency and reliability of the battery device 10. The interconnected accommodating cavity design allows for efficient utilization of the space between the tray 102 and the cover 103, allowing for the accommodation of more first cell modules 211 and second cell modules 212 without increasing the overall volume of the battery device 10.

[0147] For example, multiple first accommodating cavities are interconnected through the second accommodating cavity, thereby achieving electrical connection between the first cell module 211 and the second cell module 212. This design reduces the need for external wiring, reduces installation complexity and potential failure points, and improves the reliability of the battery device 10.

[0148] The interconnected accommodating cavity design allows the space between the tray 102 and the cover 103 to be utilized. This layout allows more first cell modules 211 and second cell modules 212 to be accommodated without increasing the overall volume of the battery device 10, thereby improving energy density.

[0149] As a feasible implementation, the battery device 10 further includes a supporting member 104 . The supporting member 104 is disposed between the first battery cell module 211 and the second battery cell module 212 . The supporting member 104 is connected to at least one side wall of the box body 100 .

[0150] Illustratively, the support member 104 provides additional physical support between the first battery cell module 211 and the second battery cell module 212. This support helps maintain the stability of the first battery cell module 211 and the second battery cell module 212, preventing displacement or damage under vibration or impact conditions. The support member 104 can act as a buffer layer to absorb and disperse vibrations and impacts caused by vehicle driving or external impacts. This buffering effect helps protect the first battery cell module 211 and the second battery cell module 212 and extend their service life. The support member 104 helps to evenly distribute the mechanical load within the battery device 10 and prevent local stress concentration. This load distribution reduces material fatigue and potential structural failures.

[0151] In addition, the supporting member 104 is connected to at least one side wall of the box body 100, which improves the connection stability between the box body 100 and the supporting member 104 and improves the structure of the battery device 10.

[0152] For example, the supporting member 104 may be a supporting plate.

[0153] As a feasible implementation manner, the avoidance portion 101 is a avoidance groove; along the second direction, the avoidance groove passes through the cover body 103.

[0154] The second direction intersects the height direction of the battery device 10. Figure 1 The direction indicated by X.

[0155] For example, the avoidance groove is a groove structure in the battery device 10, with its groove opening facing the vehicle beam 300, so that the battery device 10 can avoid the vehicle beam 300 and other chassis structures during installation. The design of the avoidance groove opening facing the vehicle beam 300 ensures that the battery device 10 can fit tightly against the vehicle chassis while avoiding physical interference with the vehicle beam 300.

[0156] By designing the avoidance groove, the battery device 10 can adapt to the complex shape of the vehicle chassis. At the same time, the avoidance groove not only avoids direct contact with the vehicle beam 300, but also protects the battery device 10 from vibration and impact from the vehicle beam 300 to a certain extent.

[0157] At the same time, the presence of the avoidance groove makes the installation process of the battery device 10 easier. The installer can more easily place the battery device 10 under the vehicle chassis without having to modify or make additional adjustments to the vehicle beam 300.

[0158] As a feasible implementation, the number of avoidance parts 101 is multiple, and the multiple avoidance parts 101 are arranged at intervals along the first direction. The multiple avoidance parts 101 are respectively used to avoid multiple beams 300 of the vehicle, and the first direction intersects with the second direction. Figure 1 The direction indicated by Y in the middle, the second direction refers to Figure 1 The direction indicated by X.

[0159] For example, by designing multiple relief portions 101, the battery device 10 can better adapt to the complex structure of the vehicle 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 relief portions 101 allows the battery device 10 to fit more closely to the vehicle chassis, maximizing the use of available space. This helps to increase the volumetric energy density of the battery device 10.

[0160] As a feasible implementation, the power distribution module 220 is located on top of the battery cell 210 .

[0161] For example, by placing the power distribution module 220 on top of the battery cell 210, that is, the power distribution module is arranged on the side of the battery cell 210 close to the cover 103, the space between the cover 103 and the battery cell 210 can be fully utilized. This layout can reduce the gap inside the battery device 10 and improve the space utilization inside the battery device 10.

[0162] The power distribution module 220 is disposed close to the cover 103 , that is, the power distribution module 220 is disposed close to the vehicle, so that the power of the battery device 10 can be conveniently led out to the electrical components of the vehicle, reducing power transmission losses.

[0163] At the same time, the power distribution module 220 is placed close to the cover 103 to facilitate maintenance and repair when needed. The cover 103 is usually the most 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.

[0164] As a feasible implementation method, refer to Figure 3 As shown, the power distribution module 220 includes a power distribution component 221 , which is located in the first accommodation cavity and is electrically connected to the battery cell 210 .

[0165] For example, the power distribution component 221 is placed within the first housing cavity, tightly integrated with the battery cell 210, effectively utilizing the internal space. This compact design reduces the gaps between components, making the battery device 10 more efficient and compact. The power distribution component 221 is directly electrically connected to the battery cell 210, shortening the current transmission path and reducing power transmission losses. This direct connection improves power transmission efficiency and enhances the overall performance of the battery device 10.

[0166] Exemplarily, the power distribution component 221 includes a power distribution box.

[0167] Exemplarily, the power distribution component 221 is responsible for managing and distributing the electrical energy in the battery cell 210. The functions of the power distribution component 221 include power distribution, current management, voltage regulation, and safety protection. Among them, power distribution refers to the distribution of the electrical energy in the battery device 10 to different systems and components, such as electric motors, on-board electronic equipment, charging systems, etc. Current management refers to the power distribution component 221 monitoring and controlling the flow of current to ensure that the current operates within a safe range to prevent overcurrent or short circuit. Voltage regulation refers to the power distribution component 221 adjusting the output voltage to meet the needs of different devices and ensure that the equipment can operate at the optimal voltage level. Safety protection refers to the power distribution component 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.

[0168] As a feasible implementation method, refer to Figures 3 to 6 As shown, 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 component 221 via the adapter 222 .

[0169] For example, the adapter 222 is disposed on top of the battery cell 210, that is, the adapter 222 is disposed on the side of the cover 103 close to the beam 300, which can effectively utilize the space near the beam 300. This layout can reduce the internal space occupied by the battery device 10, making the overall design more compact.

[0170] The provision of adapter 222 further simplifies the electrical connection between battery cell 210 and power distribution unit 221. This design not only reduces cable length and power transmission losses, but also simplifies the complexity of the electrical connection, improving the reliability of battery device 10. Furthermore, the proximity of adapter 222 to cover 103 facilitates maintenance and inspection. Cover 103 is typically the most easily removable part of battery device 10, making access to adapter 222 more convenient and reducing maintenance costs and time.

[0171] 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 convenient for subsequent independent maintenance of the power distribution component 221 .

[0172] As a feasible 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 .

[0173] For example, the location of connector 229 near beam 300 is typically closer to the vehicle's main power distribution system. This layout shortens the path for power to be transmitted from battery unit 10 to the rest of the vehicle, reducing cable length and power loss, thereby improving transmission efficiency. Because connector 229 is located near beam 300, wiring can be more direct and concise. This simplified wiring not only reduces installation complexity but also reduces potential points of failure, thereby improving the reliability of battery unit 10. Furthermore, shorter cable lengths mean lower resistance, thereby reducing power loss during transmission. This helps improve the overall efficiency and performance of battery unit 10.

[0174] Illustratively, 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 battery device 10 to a load such as a motor or other electrical device. Connector 229 is used to draw current from distribution unit 221.

[0175] The material of the positive power connector includes copper or silver-plated copper to ensure low resistance and high efficiency.

[0176] The negative power connector connects to the negative terminal of the power supply. It transmits the negative portion of the current, completing the circuit and allowing current to circulate between the power supply and the load. The negative power connector is made of copper or silver-plated copper to ensure low resistance and high efficiency.

[0177] Illustratively, the positive power connector may be a positive plug, and the negative power connector may be a negative plug.

[0178] As a feasible implementation, the adapter 222 further 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 .

[0179] For example, the adapter panel 223 is disposed on top of the battery cell 210, that is, the adapter panel 223 is disposed on the side of the battery cell 210 close to the beam 300, which can effectively utilize the space near the beam 300. This layout reduces the internal space occupied by the battery device 10, making the overall design more compact.

[0180] Adapter panel 223 serves as a mounting platform, providing a stable foundation for mounting and securing connectors 229 and other electrical components. This stability ensures reliable electrical connections, preventing loosening or disconnection due to vibration or impact. Placing connectors 229 on adapter panel 223 makes electrical connections more streamlined and organized. This design simplifies cable routing, reduces installation complexity, and reduces potential points of failure.

[0181] As a feasible implementation, the adapter 222 further includes a fixing bracket 230 , which connects the adapter panel 223 and the box body 100 .

[0182] Illustratively, the fixing bracket 230 provides a secure connection point, firmly attaching the adapter panel 223 to the tray 102 of the case. This connection enhances the structural stability of the entire battery assembly 10, preventing components from shifting or loosening under vibration or impact. The fixing bracket 230 provides a clear connection and support point, making assembly of the battery assembly 10 easier. When maintenance or repair is required, technicians can quickly remove and replace components.

[0183] As a feasible implementation, the adapter 222 further includes an insulating bracket 224 , which is disposed between the adapter panel 223 and the first battery cell module 211 .

[0184] For example, the insulating bracket 224 provides electrical insulation to prevent short circuits or electrical interference between the adapter panel 223 and the first cell module 211. This insulation protection is crucial to 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, arcing and leakage can be effectively prevented, thereby helping to protect the integrity and reliability of the battery system.

[0185] In addition, the insulating bracket 224 not only provides electrical insulation, but also serves as a physical support to help stabilize the position of the adapter panel 223 and the first battery module 211. This support helps prevent the components from shifting under vibration or shock conditions.

[0186] For example, the insulating bracket 224 may be a plastic bracket, wherein the plastic bracket has a certain elasticity based on its insulation function to absorb and disperse vibration and impact caused by vehicle driving or external impact.

[0187] As a feasible embodiment, the insulating bracket 224 includes a first insulating bracket 224a and a second insulating bracket 224b. The first insulating bracket 224a is arranged on the side of the transfer panel 223 close to the first battery cell module 211; the second insulating bracket 224b is arranged on the side of the first insulating bracket 224a close to the first battery cell module 211.

[0188] Illustratively, the first insulating bracket 224a is disposed on a side of the adapter panel 223 near the first cell module 211, providing primary electrical insulation. This layer of insulation prevents any electrical contact between the adapter panel 223 and the first cell module 211, ensuring the safety of the battery device 10.

[0189] The second insulating support 224b is disposed on a side of the first insulating support 224a close to the first battery module 211, providing an additional insulation layer. This multi-layer insulation design further reduces the risk of electrical failure and enhances the electrical safety of the battery device 10.

[0190] The stability of the entire adapter 222 is enhanced by using two layers of insulating brackets 224. Each bracket not only provides electrical insulation, but also acts as a physical support to help stabilize the position of the adapter panel 223 and related components.

[0191] As a feasible implementation, the adapter 222 further includes a first adapter portion 225 , and the first adapter portion 225 is used to connect the first battery cell module 211 and the first input end of the distribution component 221 .

[0192] For example, the first adapter 225 provides a direct electrical connection path between the first battery module 211 and the first input terminal of the power distribution unit 221. This direct connection reduces resistance and energy loss in the circuit, thereby improving the overall efficiency of the battery device 10.

[0193] The first transition portion 225 provides a stable connection, reducing the risk of the connection becoming loose or disconnected due to vibration or physical stress.

[0194] Exemplarily, the first input terminal may be a positive input terminal.

[0195] As a feasible implementation, the first transition portion 225 includes a first transition section 225a and a second transition section 225b connected to each other; along the first direction, the first transition section 225a is arranged on one side of the first battery cell module 211; the first transition section 225a is connected to the first battery cell module 211.

[0196] The second transfer section 225b is provided between the first insulating support 224a and the second insulating support 224b, and the second transfer section 225b is connected to the first input end;

[0197] The first direction intersects the height direction of the battery device 10. Figure 1 The direction shown in Y.

[0198] Exemplarily, the first transfer section 225a is disposed on one side of the first cell module 211 and is connected to the first cell module 211 via a power transfer bar. This connection ensures efficient transmission of electrical energy from the first cell module 211 to the first transfer section 225, reducing power loss. The second transfer 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 distribution component 221. Through this layout, the second transfer section 225b provides a stable and safe path for transferring electrical energy from the first transfer section 225a to the distribution component 221.

[0199] The second transition section 225b is disposed between the first insulating support 224a and the second insulating support 224b, and the insulating support 224 provides additional electrical insulation protection. This configuration reduces the risk of electrical interference and short circuits, thereby improving the safety of the battery device 10.

[0200] Through the clear 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.

[0201] In some embodiments, the first transition section 225a and the second transition section 225b are power connection bars. A power connection bar is a device used for connecting power or signals, and may be a connector or terminal block for power distribution or signal transmission. The power connection bar is used to ensure stable and reliable transmission of power or signals.

[0202] As a feasible implementation, the second insulating bracket 224b has a first limiting groove 224c, and a portion of the first transition section 225a close to the second transition section 225b is located in the first limiting groove 224c.

[0203] For example, the first limiting groove 224c provides a clear positioning and fixing 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, and at the same time, reduces assembly time and complexity, thereby improving production efficiency.

[0204] By partially embedding the first transition section 225a into the limiting groove, the stability of the electrical connection is enhanced. This fixing method reduces the risk of disconnection or poor contact due to physical stress.

[0205] As an achievable implementation, the adapter 222 further includes a second adapter portion 226 , and the second adapter portion 226 is disposed between the first insulating bracket 224 a and the second insulating bracket 224 b ;

[0206] The second adapter portion 226 is used to connect the first output end of the power distribution component 221 and the connector 229 .

[0207] For example, the second adapter 226 provides an efficient electrical transmission path by connecting the first output terminal of the power distribution component 221 and the connector 229. This direct connection helps reduce losses during power transmission.

[0208] The second transition portion 226 is located between the first insulating bracket 224a and the second insulating bracket 224b, and the insulating bracket 224 provides additional electrical insulation protection for the second transition portion 226. This configuration reduces the risk of electrical interference and short circuit.

[0209] For example, the second adapter portion 226 can be used to connect the first output terminal of the power distribution component 221 and the positive power connector. The first output terminal can be a positive output terminal.

[0210] In some embodiments, the second adapter portion 226 is a power connector. A power connector is a device used for connecting power or signals, and may be a connector or terminal block for power distribution or signal transmission. The power connector ensures stable and reliable transmission of power or signals.

[0211] As a feasible implementation, the adapter 222 further includes a third adapter portion 227 ; the third adapter portion 227 is used to connect the second battery cell module 212 and the second input end of the power distribution component 221 .

[0212] For example, the third adapter 227 provides a direct electrical connection path between the second battery module 212 and the second input terminal of the power distribution unit 221. This direct connection reduces resistance and energy loss in the circuit, thereby improving the overall efficiency of the battery device 10.

[0213] The third transition portion 227 provides a stable connection, reducing the risk of the connection becoming loose or disconnected due to vibration or physical stress.

[0214] As a feasible implementation, the third transition portion 227 includes a third transition segment 227a and a fourth transition segment 227b; along the first direction, the third transition segment 227a is arranged on one side of the second battery cell module 212; the third transition segment 227a is connected to the second battery cell module 212.

[0215] The fourth transfer section 227 b is disposed between the first insulating support 224 a and the second insulating support 224 b ; the fourth transfer section 227 b is connected to the second input end of the power distribution component 221 .

[0216] Exemplarily, the third transfer 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 transmission of electrical energy from the second cell module 212 to the third transfer section 227, reducing power loss. The fourth transfer 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 distribution component 221. Through this layout, the fourth transfer section 227b provides a stable and secure path for transferring electrical energy from the third transfer section 227a to the distribution component 221.

[0217] The fourth transition section 227b is disposed between the first insulating support 224a and the second insulating support 224b, and the insulating support 224 provides additional electrical insulation protection. This configuration reduces the risk of electrical interference and short circuits, thereby improving the safety of the battery device 10.

[0218] Through the clear segmented design, the third adapter 227 simplifies electrical wiring, making assembly and maintenance easier. Technicians can more easily identify and solve connection problems, reducing maintenance time and costs.

[0219] Exemplarily, the second input terminal may be a negative input terminal.

[0220] In some embodiments, the third transition section 227a and the fourth transition section 227b are power connection bars. A power connection bar is a device used for connecting power or signals, and may be a connector or terminal block for power distribution or signal transmission. The power connection bar is used to ensure stable and reliable transmission of power or signals.

[0221] As a feasible implementation, the second insulating bracket 224b has a second limiting groove 224d, and a portion of the third transition section 227a close to the fourth transition section 227b is located in the second limiting groove 224d.

[0222] For example, the second limiting groove 224d provides a clear positioning and fixing 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, and at the same time, reduces assembly time and complexity, thereby improving production efficiency.

[0223] By partially embedding the third transition section 227a into the limiting groove, the stability of the electrical connection is enhanced. This fixing method reduces the risk of disconnection or poor contact due to physical stress.

[0224] As a feasible implementation, the adapter 222 further includes a fourth adapter portion 228 , and the fourth adapter portion 228 is disposed between the first insulating bracket 224 a and the second insulating bracket 224 b .

[0225] The fourth adapter portion 228 is used to connect the second output end of the power distribution component 221 and the connector 229 .

[0226] For example, the fourth adapter 228 provides an efficient electrical transmission path by connecting the second output terminal of the power distribution component 221 and the connector 229. This direct connection helps reduce losses during power transmission.

[0227] The fourth transition portion 228 is located between the first insulating support 224a and the second insulating support 224b, and the insulating support 224 provides additional electrical insulation protection for the fourth transition portion 228. This configuration reduces the risk of electrical interference and short circuit.

[0228] For example, the fourth adapter portion 228 is used to connect the second output terminal of the power distribution component 221 and the negative power connector. The second output terminal can be a negative output terminal.

[0229] In some embodiments, the fourth adapter 228 is a power connection bar. A power connection bar is a device used for connecting power or signals, and may be a connector or terminal block for power distribution or signal transmission. The power connection bar is used to ensure stable and reliable transmission of power or signals.

[0230] Illustratively, the positive circuit is connected to the positive input terminal of the distribution module 220 by the above-mentioned first adapter 225, and is electrically connected to the positive power connector through the positive output terminal of the distribution module 220 via the second adapter 226; the negative circuit is connected to the negative input terminal of the distribution module by the above-mentioned third adapter 227, and is electrically connected to the negative power connector through the negative output terminal of the distribution module 220 via the fourth adapter 228.

[0231] By arranging the power distribution module 220 on the side of the battery cell 210 close to the beam 300 and using the adapter 222 for high-voltage power transfer between the battery cell 210 and the power distribution component 221, compared to related technologies, there is no need to arrange the power distribution module 220 inside the box 100 or on the side of the battery cell 210. The battery device 10 provided in the embodiment of the present application fully utilizes the space of the battery device 10 and the space between the beam 300 and the battery device 10, thereby improving space utilization. At the same time, this arrangement of the power distribution module 220 on the side of the battery cell 210 close to the beam 300 facilitates the electrical connection between the vehicle's electrical components and the battery device 10, facilitating wiring.

[0232] For example, the second transition section 225b, the second transition portion 226, the fourth transition section 227b, and the fourth transition portion 228 are all disposed between the second insulating bracket 224b and the first insulating bracket 224a. To prevent short circuits between the second transition section 225b, the second transition portion 226, the fourth transition section 227b, and the fourth transition portion 228, the insulating bracket 224 is provided with a limiting groove and a limiting boss for assembling the second transition section 225b, the second transition portion 226, the fourth transition section 227b, and the fourth transition portion 228.

[0233] As a feasible implementation method, refer to Figure 7 As shown, the battery device 10 further includes a connection structure 240 , which is used to connect the first battery cell module 211 and the second battery cell module 212 .

[0234] The connection structure 240 includes a first connection portion 241 and a second connection portion 242 . The first connection portion 241 and the second connection portion 242 are electrically connected.

[0235] The first connecting portion 241 is electrically connected to the first battery cell module 211 ; the second connecting portion 242 is electrically connected to the second battery cell module 212 .

[0236] Illustratively, the first connection portion 241 is electrically connected to the first cell module 211 and is responsible for receiving power from the first cell module 211. The second connection portion 242 is electrically connected to the second cell module 212 and is electrically connected to the first connection portion 241 to achieve a series connection between the first cell module 211 and the second cell module 212.

[0237] By connecting the first battery cell module 211 and the second battery cell module 212 in series, the connection structure 240 can increase the total voltage output of the battery pack.

[0238] As a feasible implementation, the battery device 10 further includes a voltage-dividing relay 243 , which is disposed on the supporting member 104 ; the voltage-dividing relay 243 is electrically connected to the power distribution member 221 .

[0239] Two ends of the voltage-dividing relay 243 are connected to the first connecting portion 241 and the second connecting portion 242 , respectively.

[0240] Illustratively, the voltage divider relay 243 is used to manage and adjust the voltage distribution within the battery device 10. By connecting to the first connection portion 241 and the second connection portion 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.

[0241] When an abnormal voltage is detected, the voltage divider relay 243 can quickly respond to protect the battery device 10. This protection mechanism helps prevent overvoltage or undervoltage conditions and reduces the risk of battery damage.

[0242] Exemplarily, the first connection portion 241 includes a power transfer bar and a power connection bar connected to each other, the power transfer bar is connected to the first battery module 211 , and the power connection bar is connected to the voltage divider relay 243 .

[0243] The second connection portion 242 includes a cross-layer transfer bar and a power connection bar connected to each other, the cross-layer transfer bar is connected to the second battery module 212, and the power connection bar is connected to the voltage divider relay 243. The cross-layer transfer bar is welded to the second battery module 212.

[0244] In the battery device 10 provided in the embodiment of the present application, by providing the connection structure 240 , the voltage difference between the connection area between the first battery cell module 211 and the second battery cell module 212 is small, and the risk of high-voltage arcing is low.

[0245] As a feasible implementation, the battery device 10 further includes a cold plate 250 , which is disposed between the power distribution component 221 and the first battery cell module 211 .

[0246] Exemplarily, the supporting 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 supporting member 104 by rivets.

[0247] The distribution component 221 is provided with a fixing groove, and the distribution component 221 is fixed to the mounting column of the cold plate 250 by bolts. In the installed state, there is an assembly gap between the lower surface of the distribution component 221 and the upper surface of the square flow channel of the cold plate 250, and a thermal insulation medium such as thermal insulation cotton can be added therein to prevent condensation water from being generated between the distribution component 221 and the cold plate 250; a thermally conductive medium such as a thermally conductive gel pad, or other heat dissipation device can also be added to the assembly gap to achieve cooling of the distribution component 221.

[0248] As a feasible implementation manner, along the first direction, a first boss is provided at the first end of the adapter panel 223 , and the first end of the adapter panel 223 is connected to the cold plate 250 via the first boss.

[0249] A second boss is provided at the second end of the adapter panel 223 , and the second end of the adapter panel 223 is connected to the fixing bracket 230 via the second boss.

[0250] The first direction intersects with the height direction of the battery device 10 .

[0251] The first direction refers to Figure 1 The direction shown in Y.

[0252] Illustratively, a first boss is provided at the first end of the adapter panel 223, and the first boss at the first end of the adapter panel 223 is fixed to the mounting column of the cold plate 250 by bolts; the second boss 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, thereby realizing fixed installation of the adapter 222 and the battery device 10.

[0253] The use of bosses can increase the contact area at the connection, thereby dispersing stress and improving the strength of the mechanical connection. This helps prevent structural damage due to stress concentration during use. By using the first boss and the second boss at both ends, the displacement and vibration of the adapter panel 223 in the vertical direction can be effectively controlled. This stable connection method helps maintain the overall stability of the battery device 10. In addition, the boss can serve as a positioning element to ensure that the adapter panel 223 is in the correct position during installation. This helps to improve the assembly accuracy of the entire battery device 10 and reduce potential problems caused by installation errors.

[0254] As a feasible implementation method, refer to Figure 8 As shown, the battery device 10 further includes an electrical connector 260 , and the first battery cell modules 211 located in two adjacent first accommodation cavities are connected via the electrical connector 260 .

[0255] Illustratively, the electrical connector 260 is a component used to achieve electrical connection between the first battery modules 211. It can be a wire or busbar, ensuring efficient current transmission between the first battery modules 211. Each first accommodating cavity houses a first battery module 211, and the electrical connector 260 is used to connect the first battery modules 211 in adjacent first accommodating cavities to form a complete battery system.

[0256] The electrical connectors 260 ensure efficient current transmission between the first battery modules 211, reducing resistance losses and improving the overall efficiency of the battery device 10. By using the electrical connectors 260, the battery device 10 can adopt a modular design. This design allows each first battery module 211 to be independently installed and replaced, simplifying production and maintenance.

[0257] In some embodiments, the electrical connector 260 is a high-voltage power busbar. The high-voltage power busbar is made of copper or aluminum and has good electrical conductivity and mechanical strength. It also has low electrical resistance and can efficiently transmit high currents.

[0258] As a feasible implementation, the electrical connector 260 has an electrical connection bending portion 261 .

[0259] Along the first direction, the middle portion of the electrical connector 260 is bent relative to the two ends of the electrical connector 260 in a direction away from the avoiding portion 101 to form an electrical connection bending portion 261 .

[0260] Along the height direction of the battery device 10 , the electrical connection bending portion 261 and the avoiding portion 101 are correspondingly arranged and have matching shapes.

[0261] The first direction intersects with the height direction of the battery device 10 .

[0262] For 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. The avoidance portion is used to provide space for the electrical connection bend 261 so that it can be arranged without interference.

[0263] As a feasible embodiment, the electrical connector 260 includes at least two conductive base parts 262, one end of at least two conductive base parts 262 is connected to the electrical connection bending part 261, and the other end of the conductive base part 262 is respectively connected to the adjacent first battery module 211.

[0264] Exemplarily, one conductive base portion 262 is responsible for electrically connecting to a battery cell in an adjacent first battery cell module 211, and another conductive base portion 262 is responsible for electrically connecting to a battery cell in an adjacent first battery cell module 211. The electrical connection bending portion 261 is used to connect these two conductive base portions 262 to achieve electrical connection between adjacent first battery cell modules 211.

[0265] By directly connecting adjacent first cell modules 211, this design enables efficient current transmission, reduces resistance losses, 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.

[0266] As a feasible implementation, the conductive base portion 262 includes a conductive plate 263 , the conductive plate 263 is provided with a recessed portion 264 , and the pole of the end cell 213 located at the end of the first cell module 211 is welded to the recessed portion 264 .

[0267] Illustratively, the conductive plate 263 is a component of the conductive base 262. The recess 264 is a specific area on the conductive plate 263 for accommodating the terminal of the first battery cell module 211. The presence of the recess 264 ensures that the terminal can be firmly embedded in the conductive plate 263, providing a stable electrical connection.

[0268] Since the pole needs to be welded to the conductive plate 263, the recess 264 is provided. This not only controls the material thickness in the weld area, avoiding excessively thick welds, but also helps reduce thermal damage and material deformation that may occur during welding. Furthermore, the recess 264 concentrates heat, raising the temperature in the weld area and improving weld fusion. This helps form a stronger weld joint, reduces welding defects, and provides a more stable connection between the pole and the conductive plate 263, reducing the risk of loosening due to vibration or impact.

[0269] As a feasible implementation, the electrical connection bending portion 261 includes a first section 261 a , a second section 261 b and a third section 261 c that are sequentially connected.

[0270] The first segment 261 a and the third segment 261 c both extend along the height direction of the battery device 10 , and the second segment 261 b extends along the first direction. The first segment 261 a and the third segment 261 c are connected to the conductive base portion 262 .

[0271] Exemplarily, the first segment 261 a and the third segment 261 c extend along the height direction of the battery device 10 and are responsible for connecting with the conductive base portion 262 to ensure effective transmission of current between the first battery cell modules 211 .

[0272] By designing the electrical connection bend portion 261 to extend in different directions, the electrical connection bend portion 261 adapts to the avoidance structure, reducing the risk of physical interference and ensuring the integrity and functionality of the battery device 10.

[0273] In addition, by designing the electrical connection bend portion 261 into multiple sections, the mechanical stability is improved and the risk of connection loosening or breaking due to vibration or mechanical stress is reduced.

[0274] As a feasible implementation, the outer periphery of the electrical connection bend portion 261 is wrapped with an insulating layer.

[0275] 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 from environmental factors such as moisture, dust, and chemicals, thereby improving the long-term reliability of the electrical connector 260.

[0276] In some embodiments, the conductive connection portion is immersed in liquid epoxy resin, and the epoxy resin forms an insulating layer after curing.

[0277] In some other embodiments, the outer periphery of the conductive connection portion is wrapped with mica and polyimide, and the mica and polyimide form an insulating layer.

[0278] As a feasible implementation, the electrical connector 260 is a stamped part or a welded part.

[0279] In some embodiments, the electrical connector 260 is a stamped part. Stamped parts are cut and formed from sheet metal using a stamping process. The stamping process is typically performed using a stamping machine and a die. The stamping process allows for rapid production of large quantities of the electrical connector 260, reducing unit production costs. Stamped parts produced using this process exhibit high consistency and dimensional accuracy.

[0280] In other embodiments, the electrical connector 260 is a welded part. A welded part is formed by welding multiple metal parts together. Common welding methods include laser welding, spot welding, and arc welding. Welded parts produced by welding processes have high strength.

[0281] Illustratively, the electrical connector 260 may be a stamped aluminum part.

[0282] Finally, it should be noted that those skilled in the art will readily identify other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The present invention is not limited to the precise structure described above and illustrated in the accompanying drawings, and various modifications and variations may be made without departing from the scope thereof. The scope of the present invention is limited solely by the appended claims.

Claims

1. A battery device (10), characterized in that: For a vehicle, the battery device (10) comprises: A box body (100), the box body (100) having an avoidance portion (101), the avoidance portion (101) being used to avoid the vehicle beam (300) of the vehicle; the box body (100) having a first accommodating cavity, the first accommodating cavity being located on at least one side of the avoidance portion (101); a plurality of battery cells (210), wherein the plurality of battery cells (210) are located in the first accommodating cavity; A power distribution module (220) is electrically connected to the battery cell (210); along the height direction of the battery device (10), the power distribution module (220) is arranged on the top of the battery cell (210).

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

3. The battery device (10) according to claim 2, characterized in that The power distribution module (220) further includes an adapter (222), wherein the adapter (222) is arranged on the top of the battery cell (210); the battery cell (210) is electrically connected to the power distribution component (221) via the adapter (222).

4. The battery device (10) according to claim 3, characterized in that The plurality of battery cells (210) form a first battery cell module (211), and the number of the first battery cell modules (211) is plural; There are multiple first accommodating cavities, and the first accommodating cavity is used to accommodate at least one first battery cell module (211).

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

6. The battery device (10) according to claim 5, characterized in that The electrical connector (260) has an electrical connection bending portion (261); Along the first direction, the middle portion of the electrical connector (260) is bent relative to the two ends of the electrical connector (260) in a direction away from the avoidance portion (101), forming the electrical connection bending portion (261); Along the height direction of the battery device (10), the electrical connection bending portion (261) and the avoidance portion (101) are arranged correspondingly and have matching shapes; 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) comprises at least two conductive base parts (262), one end of at least two of the conductive base parts (262) is connected to the electrical connection bending part (261), and the other end of the conductive base part (262) is respectively connected to the adjacent first battery core module (211).

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

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

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

11. The battery device (10) according to claim 5, 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 to 11, characterized in that: The box body (100) is further formed with a second accommodating cavity; along the height direction of the battery device (10), the first accommodating cavity and the second accommodating cavity are arranged in sequence, and the first accommodating cavity is located at the top of the second accommodating cavity.

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

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 accommodating cavity.

15. The battery device (10) according to claim 14, characterized in that It also includes a supporting member (104), the supporting member (104) being arranged between the first battery cell module (211) and the second battery cell module (212), and the supporting member (104) being connected to at least one side wall of the box body (100).

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

17. The battery device (10) according to claim 16, characterized in that The adapter (222) further includes an adapter panel (223), which is arranged on the top of the battery cell (210); and the connector (229) is arranged on a side of the adapter panel (223) facing away from the battery cell (210).

18. The battery device (10) according to claim 17, characterized in that The adapter (222) further includes a fixing bracket (230), and the fixing bracket (230) connects the adapter panel (223) and the box (100).

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

20. The battery device (10) according to claim 19, characterized in that The insulating support (224) comprises a first insulating support (224a) and a second insulating support (224b), wherein the first insulating support (224a) is arranged on a side of the transfer panel (223) close to the first battery cell module (211); and the second insulating support (224b) is arranged on a side of the first insulating support (224a) close to the first battery cell module (211).

21. The battery device (10) according to claim 20, characterized in that The adapter (222) further includes a first adapter portion (225), and the first adapter portion (225) is used to connect the first battery cell module (211) and the first input end of the power distribution component (221).

22. The battery device (10) according to claim 21, characterized in that The first transfer portion (225) comprises a first transfer section (225a) and a second transfer section (225b) connected to each other; along a first direction, the first transfer section (225a) is arranged on one side of the first battery cell module (211); the first transfer section (225a) and the first battery cell module (211) are connected; The second transfer section (225b) is provided between the first insulating support (224a) and the second insulating support (224b), and the second transfer section (225b) is connected to the first input end; The first direction intersects with the height direction of the battery device (10).

23. The battery device (10) according to claim 22, characterized in that The second insulating bracket (224b) has a first limiting groove (224c), and a portion of the first transition section (225a) close to the second transition section (225b) is located in the first limiting groove (224c).

24. The battery device (10) according to claim 23, characterized in that The adapter (222) further includes a second adapter portion (226), and the second adapter portion (226) is arranged between the first insulating bracket (224a) and the second insulating bracket (224b); The second adapter portion (226) is used to connect the first output end of the power distribution component (221) and the connector (229).

25. The battery device (10) according to claim 24, characterized in that The adapter (222) further includes a third adapter portion (227); the third adapter portion (227) is used to connect the second battery cell module (212) and the second input end of the power distribution component (221).

26. The battery device (10) according to claim 25, characterized in that The third transfer portion (227) includes a third transfer section (227a) and a fourth transfer section (227b); along the first direction, the third transfer section (227a) is arranged on one side of the second battery cell module (212); the third transfer section (227a) and the second battery cell module (212) are connected; The fourth transfer section (227b) is arranged between the first insulating support (224a) and the second insulating support (224b); the fourth transfer section (227b) is connected to the second input end of the power distribution component (221).

27. The battery device (10) according to claim 26, characterized in that The second insulating bracket (224b) has a second limiting groove (224d), and a portion of the third transition section (227a) close to the fourth transition section (227b) is located in the second limiting groove (224d).

28. The battery device (10) according to claim 27, characterized in that The adapter (222) further includes a fourth adapter portion (228), and the fourth adapter portion (228) is arranged between the first insulating bracket (224a) and the second insulating bracket (224b); The fourth adapter portion (228) is used to connect the second output end of the power distribution component (221) and the connector (229).

29. The battery device (10) according to claim 15, characterized in that It also includes a connection structure (240), wherein the connection structure (240) is used to connect the first battery cell module (211) and the second battery cell module (212); The connection structure (240) comprises a first connection portion (241) and a second connection portion (242); the first connection portion (241) and the second connection portion (242) are electrically connected; The first connecting portion (241) is electrically connected to the first battery cell module (211); and the second connecting portion (242) is electrically connected to the second battery cell module (212).

30. The battery device (10) according to claim 29, characterized in that It also includes a voltage-dividing relay (243), which is arranged on the supporting member (104); the voltage-dividing relay (243) is electrically connected to the power distribution member (221); Two ends of the voltage dividing relay (243) are respectively connected to the first connecting portion (241) and the second connecting portion (242).

31. The battery device (10) according to claim 18, characterized in that It also includes a cold plate (250), which is arranged between the power distribution component (221) and the first battery core module (211).

32. The battery device (10) according to claim 31, characterized in that Along the first direction, a first boss is provided at the first end of the adapter panel (223), and the first end of the adapter panel (223) is connected to the cold plate (250) via the first boss; The second end of the adapter panel (223) is provided with a second boss, and the second end of the adapter panel (223) is connected to the fixing bracket (230) via the second boss; 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 to 11, characterized in that The box (100) includes a cover (103) and a tray (102) connected to each other; The cover (103) is formed with the avoidance portion (101).

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

35. The battery device (10) according to claim 34, characterized in that The avoidance portion (101) is a avoidance groove; along the second direction, the avoidance groove penetrates the cover body (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 There are multiple avoidance portions (101), and the multiple avoidance portions (101) are arranged at intervals along a first direction. The multiple avoidance portions (101) are respectively used to avoid multiple vehicle beams (300) of the vehicle, and the first direction intersects with the second direction.

37. A vehicle, characterized in that: include: Car beam (300); The battery device (10) according to any one of claims 1 to 36, wherein the battery device (10) is connected to the vehicle beam (300); and the avoidance portion (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 vehicle beam (300) includes a cross beam (340) extending in the vehicle width direction; The crossbeam (340) includes a first crossbeam (350) and a second crossbeam (360), and the first crossbeam (350) and the second crossbeam (360) are arranged at intervals along the length direction of the vehicle; the box (100) of the battery device (10) is connected to the first crossbeam (350) and the second crossbeam (360).

39. The vehicle of claim 37, wherein: The vehicle beam (300) includes a longitudinal beam (310) extending along the length direction of the vehicle; at least a portion of the longitudinal beam (310) is located in the avoidance portion (101).

40. The vehicle of claim 38, wherein: The vehicle beam (300) further comprises at least two mounting beams (330), wherein the at least two mounting beams (330) are respectively located on both sides of the first cross beam (350) and the second cross beam (360) along the vehicle width direction and are respectively connected to the first cross beam (350) and the second cross beam (360), and the box body (100) is connected to the mounting beams (330).

41. The vehicle of claim 37, wherein: There are multiple battery devices (10), and the multiple battery devices (10) are arranged in sequence along the length direction of the vehicle.

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