Battery pack and electric device comprising same

Abstract

A battery pack (1000) and an electric device (2000) comprising same. The battery pack comprises a case (100), a power distribution structure (200), and a battery assembly (300). The case forms an accommodating cavity (110) and is provided with a plurality of connectors (120) spaced apart in a first direction; the power distribution structure and the battery assembly are arranged in the accommodating cavity, and both the connectors and the power distribution structure are located on one side of the battery assembly in a second direction; the battery assembly is electrically connected to the power distribution structure; and the power distribution structure is electrically connected to the connectors by means of electrical connection ends (210).

Description

Battery pack and electrical device having it

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 2024211983015, filed on May 28, 2024, entitled "Battery Pack and Electrical Device Having the Same", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of battery pack technology, specifically a battery pack and an electrical device having the same. Background Technology

[0004] In order to distribute electrical energy reasonably and make the entire circuit of the battery pack more convenient to operate, a distribution box is usually installed in the battery pack, and the distribution box is configured to be electrically connected to the battery pack and the connectors on the battery pack through busbars.

[0005] However, when existing distribution boxes are connected to battery packs and connectors, especially in four-wheel drive vehicles, these vehicles must have at least two connectors, one in the front and one in the back. This makes the busbar wiring more complicated, increases the manufacturing cost of the battery pack, and reduces the safety and space utilization of the battery pack. Summary of the Invention

[0006] To address this, this application proposes a battery pack that simplifies busbar routing and shortens busbar routing length, thereby reducing the connection difficulty between the power distribution structure, connectors, and battery pack. This solves the technical problem of complex busbar routing when the power distribution box is connected to the battery pack and connectors in the prior art.

[0007] A battery pack according to an embodiment of this application includes: a housing, wherein a receiving cavity is formed within the housing, and the housing is provided with a plurality of plug-in members spaced apart in a first direction; a power distribution structure and a battery assembly, wherein the power distribution structure and the battery assembly are both disposed in the receiving cavity, and the plug-in members and the power distribution structure are both located on one side of the battery assembly in a second direction, the battery assembly is electrically connected to the power distribution structure, the power distribution structure is provided with an electrical connection end, and the electrical connection end is electrically connected to the plug-in members, wherein the first direction and the second direction are perpendicular to each other.

[0008] According to the battery pack of this application embodiment, by arranging multiple connectors at intervals along a first direction and arranging both the connectors and the power distribution structure on one side of the battery assembly in a second direction, the power distribution structure can be positioned close to the battery assembly, thereby facilitating the electrical connection between the battery assembly and the power distribution structure and reducing the difficulty of the electrical connection between the battery assembly and the power distribution structure. On the other hand, the connectors can also be positioned close to the power distribution structure, so when the electrical connection end on the power distribution structure is electrically connected to the connector, the distance between the electrical connection end and the corresponding connector can be shortened, and the connector connecting the electrical connection end and the connector can be prevented from crossing the battery assembly. While reducing the difficulty of the electrical connection between the electrical connection end and the connector, it can also, to a certain extent, prevent the connector connecting the electrical connection end and the connector from forming an electrical connection with the battery assembly. It can also simplify the structure of the battery pack, reduce the weight and manufacturing cost of the battery pack, and improve the safety of the battery pack.

[0009] Optionally, the power distribution structure is provided with a plurality of electrical connection terminals arranged along the first direction, and each electrical connection terminal is electrically connected to the plug on the same side.

[0010] Optionally, the battery assembly includes at least two sets of battery packs arranged along the first direction, with adjacent sets of battery packs being electrically connected.

[0011] Optionally, the battery assembly includes a first output electrode and a second output electrode, the first output electrode and the second output electrode having different polarities, and the first output electrode and the second output electrode being electrically connected to the power distribution structure respectively.

[0012] Optionally, each battery pack includes a plurality of battery cells, which extend along the first direction and are arranged sequentially in the second direction, with the first output electrode and the second output electrode located in different groups of battery cells close to the power distribution structure.

[0013] Optionally, the power distribution structure includes a first connection portion and a second connection portion spaced apart in the first direction, wherein the first connection portion and the second connection portion are electrically connected to the first output electrode and the second output electrode, respectively.

[0014] Optionally, in the second direction, the first connecting portion and the second connecting portion are disposed close to the battery assembly.

[0015] Optionally, the receiving cavity includes a first receiving cavity and a second receiving cavity spaced apart in the second direction, the power distribution structure is disposed in the first receiving cavity, the battery assembly is disposed in the second receiving cavity, and the first receiving cavity has the plug-in on its side wall in the first direction.

[0016] Optionally, a first partition beam and a first wiring channel are provided between the first receiving cavity and the second receiving cavity, and the first wiring channel connects the first receiving cavity and the second receiving cavity.

[0017] Optionally, the first wiring channel is formed at at least one end of the first partition beam; and / or, the first wiring channel is disposed near the middle of the receiving cavity in the first direction.

[0018] Optionally, the battery assembly includes at least two sets of battery packs arranged along the first direction, and the second receiving cavity includes a plurality of second receiving cavities that are spaced apart in the first direction, with each of the plurality of second receiving cavities corresponding to one of the plurality of battery packs.

[0019] Optionally, a second partition beam and a second wiring channel are provided between two adjacent second accommodating cavities, and the second wiring channel connects the two adjacent second accommodating cavities.

[0020] The electrical device according to an embodiment of this application includes the aforementioned battery pack.

[0021] According to the embodiments of this application, by adopting the aforementioned battery pack, the structure of the electrical device can be simplified, the weight and manufacturing cost of the electrical device can be reduced, and the safety of the electrical device can be improved.

[0022] Additional aspects and advantages of this application will become apparent from the description which follows, or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 is a schematic diagram of a portion of the structure of a battery pack according to some embodiments of the first aspect of this application.

[0025] Figure 2 is a top view of a portion of the structure of a battery pack according to some embodiments of the first aspect of this application.

[0026] Figure 3 is a schematic diagram of the connection between the battery assembly and the power distribution structure according to some embodiments of the first aspect of this application.

[0027] Figure 4 is a schematic diagram of a portion of the structure of a battery pack according to some embodiments of the second aspect of this application.

[0028] Figure 5 is a top view of a portion of the structure of a battery pack according to some embodiments of the second aspect of this application.

[0029] Figure 6 is a schematic diagram of the connection between the battery assembly and the power distribution structure according to some embodiments of the second aspect of this application.

[0030] Figure 7 is a schematic diagram of a battery cell according to some embodiments of this application.

[0031] Figure 8 is a schematic diagram of a partial structure of a battery cell according to some embodiments of this application.

[0032] Figure 9 is a schematic diagram of a partial structure of a battery cell from another angle according to some embodiments of this application.

[0033] Figure 10 is a schematic diagram of an electrical device according to some embodiments of this application.

[0034] Reference numerals: 1000, battery pack; 100, outer casing; 110, receiving cavity; 111, first receiving cavity; 112, second receiving cavity; 120, connector; 130, first partition beam; 140, first wiring channel; 150, second partition beam; 160, second wiring channel; 200, power distribution structure; 210, electrical connection terminal; 220, first connection part; 230, second connection part; 300, battery assembly; 310, battery pack; 311, battery cell; 3111, first terminal; 3112, second terminal; 320, first output electrode; 330, second output electrode; 410, first electrical connector; 420, second electrical connector; 430, third electrical connector; 2000, electrical device. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] The battery pack 1000 of this application is described below with reference to the accompanying drawings.

[0038] As shown in Figures 1, 2, 4 and 5, the battery pack 1000 according to an embodiment of this application includes: a housing 100, a power distribution structure 200 and a battery assembly 300.

[0039] As shown in Figures 1-6, a receiving cavity 110 is formed inside the outer shell 100, and the outer shell 100 is provided with a plurality of plug-in members 120 spaced apart in a first direction.

[0040] It should be noted that the first direction mentioned here can be understood as the X direction shown in Figures 1 and 4. That is, the housing 100 is provided with multiple plugs 120, which are spaced apart in the X direction, and the power distribution structure 200 is provided with multiple electrical connection terminals 210, which are spaced apart in the X direction, so that the arrangement direction of the multiple electrical connection terminals 210 is consistent with the arrangement direction of the multiple plugs 120.

[0041] The multiple connectors 120 work together to achieve electrical connection between the battery pack 1000 and an external power supply or external power supply, reducing the difficulty of electrical connection between the battery pack 1000 and the external power supply or external power supply, so that the battery pack 1000 can be effectively charged and discharged, thereby ensuring the working performance of the battery pack 1000.

[0042] As shown in Figures 1-6, the power distribution structure 200 and the battery assembly 300 are both located in the receiving cavity 110, and the plug-in 120 and the power distribution structure 200 are both located on one side of the battery assembly 300 in the second direction. The battery assembly 300 is electrically connected to the power distribution structure 200. The power distribution structure 200 is provided with an electrical connection end 210, which is electrically connected to the plug-in 120. The first direction and the second direction are perpendicular to each other.

[0043] The second direction mentioned here can be understood as the Y direction shown in Figures 1 and 4. That is, both the power distribution structure 200 and the battery module 300 are located in the receiving cavity 110, and both the connector 120 and the power distribution structure 200 are located on the Y-direction side of the battery module 300. By placing both the power distribution structure 200 and the battery module 300 in the receiving cavity 110, the structure of the battery pack 1000 is integrated to reduce the volume of the battery pack 1000. At the same time, the outer shell 100 can protect and support the power distribution structure 200 and the battery module 300, thereby extending the service life of the power distribution structure 200 and the battery module 300. To a certain extent, this ensures the safety of the power distribution structure 200 and the battery module 300 in use, and makes the structure of the power distribution structure 200 and the battery module 300 stable, thus ensuring the working performance of the power distribution structure 200 and the battery module 300.

[0044] Meanwhile, by placing the power distribution structure 200 on one side of the battery assembly 300 in the second direction, the battery assembly 300 can be placed close to the power distribution structure 200, so as to facilitate the electrical connection between the battery assembly 300 and the power distribution structure 200 and reduce the difficulty of the electrical connection between the battery assembly 300 and the power distribution structure 200.

[0045] By placing both the connector 120 and the power distribution structure 200 on one side of the battery pack 300 in the second direction, and since multiple connectors 120 are spaced apart in the first direction and the electrical connection terminals 210 on the power distribution structure 200 need to be electrically connected to the connectors 120, it is ensured that the electrical connection terminals 210 on the power distribution structure 200 are close to the connectors 120. While achieving electrical connection between the electrical connection terminals 210 and the connectors 120, the distance between the electrical connection terminals 210 and the corresponding connectors 120 can also be shortened. This is beneficial for shortening the length of the connectors connecting the electrical connection terminals 210 and the connectors 120. In addition to reducing the difficulty of electrical connection between the electrical connection terminals 210 and the connectors 120, the structure of the connectors can also be simplified, the cost of using the connectors can be reduced, and the weight of the connectors can be reduced. This simplifies the structure of the battery pack 1000 and reduces the weight and manufacturing cost of the battery pack 1000.

[0046] The connector mentioned here can be understood as the first electrical connector 410 in the following text.

[0047] At the same time, shortening the length of the connector connecting the electrical connection terminal 210 and the plug 120 can also prevent the connector connecting the electrical connection terminal 210 and the plug 120 from being electrically connected to other structural components (such as the battery pack 300) to a certain extent, thereby improving the safety of the battery pack 1000.

[0048] Furthermore, the above-mentioned arrangement can, to a certain extent, prevent the battery pack 300 from being formed between the power distribution structure 200 and the connector 120. While reducing the difficulty of electrical connection between the power distribution structure 200 and the connector 120, it can also prevent the connectors connecting the electrical connection terminal 210 and the connector 120 from crossing the battery pack 300. This solves the technical problem in the prior art where the connectors connecting the electrical connection terminal 210 and the connector 120 need to cross the battery pack 300 when they are electrically connected. This can, to a certain extent, prevent the connectors connecting the electrical connection terminal 210 and the connector 120 from forming an electrical connection with the battery pack 300, thereby improving the safety of the battery pack 1000.

[0049] In other words, the connector 120 and the battery pack 300 are electrically connected to the power distribution structure 200, and both the connector 120 and the battery pack 300 are located close to the power distribution structure 200. This reduces the difficulty of electrically connecting the power distribution structure 200 with the connector 120 and the battery pack 300, and also avoids, to some extent, the connector 120 and the battery pack 300 from contacting each other and forming an electrical connection. It also avoids, to some extent, the connector connecting the electrical connection terminal 210 and the connector 120 from contacting the connector connecting the battery pack 300 and the power distribution structure 200 and forming an electrical connection, thereby improving the safety of the battery pack 1000.

[0050] In summary, the battery pack 1000 of this application can effectively solve the technical problem in the prior art where, when the electrical connection terminal 210 of the power distribution structure 200 and the plug 120 on the outer casing 100 are electrically connected, the connector connecting the electrical connection terminal 210 and the plug 120 needs to cross the battery assembly 300. While reducing the difficulty of electrical connection between the electrical connection terminal 210 and the plug 120, it can also shorten the connection length of the connector connecting the power distribution structure 200 and the plug 120, and to a certain extent avoid the connector connecting the electrical connection terminal 210 and the plug 120 from forming an electrical connection with the battery assembly 300. This simplifies the structure of the battery pack 1000, reduces the weight and manufacturing cost of the battery pack 1000, and improves the safety of the battery pack 1000 in use.

[0051] As can be seen from the above structure, the battery pack 1000 of this application embodiment creatively sets the relative positions of the connector 120, the power distribution structure 200 and the battery assembly 300. Specifically, multiple connectors 120 are spaced apart in the first direction and both the connectors 120 and the power distribution structure 200 are located on one side of the battery assembly 300 in the second direction. While realizing the electrical connection between the power distribution structure 200 and the connector 120, the length of the connector connecting the power distribution structure 200 and the connector 120 can be shortened, reducing the connection cost and connection difficulty between the power distribution structure 200 and the connector 120. At the same time, the distance between the electrical connection end 210 and the connector 120 can be smaller, improving the safety of the electrical connection.

[0052] Meanwhile, by setting the power distribution structure 200 on one side of the battery assembly 300 in the second direction, it is not only convenient to realize the electrical connection between the battery assembly 300 and the power distribution structure 200, but also to a certain extent avoids the plug-in 120 and the battery assembly 300 from contacting each other to form an electrical connection, and to a certain extent avoids the connector connecting the electrical connection terminal 210 and the plug-in 120 from contacting the connector connecting the battery assembly 300 and the power distribution structure 200 to form an electrical connection, thereby improving the safety of the battery pack 1000.

[0053] It is understandable that, compared with the prior art, this application arranges multiple connectors 120 at intervals in the first direction and arranges both the connectors 120 and the power distribution structure 200 on one side of the battery assembly 300 in the second direction. This reduces the difficulty of electrical connection of the battery pack 1000, simplifies the structure of the battery pack 1000, reduces the weight and manufacturing cost of the battery pack 1000, and improves the safety of the battery pack 1000.

[0054] In some embodiments, as shown in Figures 3 and 6, the power distribution structure 200 is provided with a plurality of electrical connection terminals 210 arranged along a first direction, and each electrical connection terminal 210 is electrically connected to a plug 120 on the same side.

[0055] It should be noted that the electrical connection 210 and the connector 120 on the same side are electrically connected in the following way: In the battery pack 1000, there are two oppositely arranged sides in the first direction. When the electrical connection 210 on one side of the first direction needs to be electrically connected to the connector 120, the electrical connection 210 is electrically connected to the connector 120 on the same side of the first direction. When the electrical connection 210 on the other side of the first direction needs to be electrically connected to the connector 120, the electrical connection 210 is electrically connected to the connector 120 on the other side of the first direction. This ensures that each electrical connection 210 is electrically connected to the connector 120 on the other side of the first direction. The 10 and the plug 120 on the same side form an electrical connection. This not only realizes the electrical connection between the electrical connection end 210 and the plug 120, but also shortens the distance between the electrical connection end 210 and the corresponding plug 120. This helps to shorten the length of the connector connecting the electrical connection end 210 and the plug 120. In addition to reducing the difficulty of electrical connection between the electrical connection end 210 and the plug 120, it also simplifies the structure of the connector, reduces the cost of using the connector, and reduces the weight of the connector. This simplifies the structure of the battery pack 1000 and reduces the weight and manufacturing cost of the battery pack 1000.

[0056] In some embodiments, as shown in Figures 1, 2 and 3, a plurality of electrical connection terminals 210 are respectively disposed on both sides of the power distribution structure 200 in the first direction, thereby realizing that the plurality of electrical connection terminals 210 are arranged along the first direction.

[0057] Of course, in some other embodiments, as shown in Figures 4, 5 and 6, the multiple electrical connection terminals 210 can also be located on the same side of the power distribution structure 200 but arranged in the first direction. This can also achieve the arrangement of multiple electrical connection terminals 210 along the first direction. For example, multiple electrical connection terminals 210 are all located on the side of the power distribution structure 200 located in the second or third direction, or some electrical connection terminals 210 are located on the side of the power distribution structure 200 located in the second direction, and other electrical connection terminals 210 are located on the side of the power distribution structure 200 located in the third direction, but multiple electrical connection terminals 210 are arranged in the first direction. This is also beneficial to shorten the length of the connector connecting the electrical connection terminals 210 and the plug 120.

[0058] The third direction is perpendicular to the first and second directions. In some embodiments, the third direction is the vertical direction of the power distribution structure 200.

[0059] In some embodiments, as shown in Figures 1-6, a first electrical connector 410 is provided between the power distribution structure 200 and the plug-in 120. Each electrical connection end 210 is electrically connected to the plug-in 120 on the same side through the first electrical connector 410, so as to realize the electrical connection between the power distribution structure 200 and the plug-in 120 and reduce the difficulty of the electrical connection between the power distribution structure 200 and the plug-in 120.

[0060] It should be noted that when the electrical connection terminal 210 is electrically connected to the plug-in 120 through the first electrical connector 410, by setting the arrangement direction of the multiple electrical connection terminals 210 to be consistent with the arrangement direction of the multiple plug-in 120, and electrically connecting each electrical connection terminal 210 to the plug-in 120 on the same side, the length of the first electrical connector 410 can be shortened, the cost of using the first electrical connector 410 can be reduced, the weight of the first electrical connector 410 can be reduced, and to a certain extent, the first electrical connector 410 can be prevented from forming an electrical connection with the battery assembly 300, thereby improving the safety of the battery pack 1000.

[0061] In some embodiments, the power distribution structure 200 is a BDU (Battery Disconnect Unit). The power distribution structure 200 can coordinate the function conversion and energy distribution of high-voltage accessories such as the motor control system, battery management system, charging management system, DC / DC converter, electric air conditioner, electric power steering, and braking system of the power-consuming device 2000. This helps to ensure smooth operation and efficient cooperation between the various components of the power-consuming device 2000, which not only improves the safety and stable operation of the high-voltage circuit system of the power-consuming device 2000, but also enhances the performance and user experience of the power-consuming device 2000.

[0062] In some embodiments, as shown in Figures 1, 2, 4 and 5, the battery pack 1000 includes a second electrical connector 420, which is electrically connected to the battery assembly 300 and the power distribution structure 200 respectively, so as to realize the electrical connection between the battery assembly 300 and the power distribution structure 200 and reduce the difficulty of the electrical connection between the battery assembly 300 and the power distribution structure 200.

[0063] The second electrical connector 420 mentioned here can be understood as a busbar or metal plate.

[0064] It should be noted that, in the description of this application, unless otherwise stated, "multiple" means two or more, that is, the housing 100 is provided with two or more plug-in members 120 spaced apart in the first direction.

[0065] In some embodiments, as shown in Figures 1, 2, 4 and 5, the housing 100 is provided with two plugs 120, which are spaced apart in a first direction.

[0066] It should also be noted that when the battery pack 1000 is applied to a vehicle, the first direction is the front-to-rear direction of the vehicle, that is, the first direction is from the front of the vehicle to the rear of the vehicle. One of the two connectors 120 is located in the front direction of the vehicle, and the other is located in the rear direction of the vehicle. The connector 120 located in the front direction of the vehicle is the discharge interface, and the connector 120 located in the rear direction of the vehicle is the fast charging interface.

[0067] Of course, in some other embodiments, the connector 120 located at the front of the vehicle may be a fast charging interface, and the connector 120 located at the rear of the vehicle may be a discharge interface.

[0068] In some embodiments, the battery assembly 300 includes at least two sets of battery packs 310 arranged along a first direction, with adjacent sets of battery packs 310 electrically connected. This means that the battery assembly 300 may include two sets of battery packs 310 arranged along the first direction (as shown in Figures 1 and 4), or three sets of battery packs 310 arranged along the first direction (not shown in this example figure), or more sets of battery packs 310 arranged along the first direction, with adjacent sets of battery packs 310 electrically connected to form the battery assembly 300.

[0069] By configuring the battery assembly 300 to include at least two battery packs 310, the capacity of the battery pack 1000 can be increased, thus ensuring the working performance of the battery pack 1000 to a certain extent.

[0070] In some embodiments, two adjacent battery packs 310 are spaced apart in a first direction, which can improve the safety of the battery packs 310 and prevent two adjacent battery packs 310 from directly contacting each other and forming an electrical connection.

[0071] In some embodiments, as shown in Figures 2 and 5, the battery pack 1000 includes a third electrical connector 430, which connects two adjacent battery packs 310 to form an electrical connection between them and reduces the difficulty of connecting the two adjacent battery packs 310.

[0072] The third electrical connector 430 mentioned here can be understood as a busbar or metal plate.

[0073] It should be noted that by arranging multiple battery packs 310 along the first direction, each battery pack 310 can be placed close to the power distribution structure 200 (as shown in Figures 1 and 4). This avoids the phenomenon where one battery pack 310 is located between another battery pack 310 and the power distribution structure 200, which helps to reduce the difficulty of electrical connection between multiple battery packs 310 and the power distribution structure 200, and can shorten the length of the second electrical connector 420. At the same time, it can also avoid the situation where two second electrical connectors 420 with voltage differences run parallel over a long distance, thereby simplifying the busbar wiring of the battery pack 1000 and providing convenience for the manufacturing cost, safety of use and space utilization of the battery pack 1000.

[0074] In other words, by placing the battery assembly 300 on one side of the power distribution structure 200 in the second direction and arranging at least two battery packs 310 of the battery assembly 300 along the first direction, this application simplifies the wiring path and wiring length of the second electrical connector 420, reduces the cost of the second electrical connector 420, and improves the safety of the battery pack 1000.

[0075] In the description of this application, features marked with "first", "second", or "third" may explicitly or implicitly include one or more of the same feature, used to distinguish and describe features, without any order or emphasis.

[0076] In some embodiments, as shown in Figures 1-6, the battery assembly 300 includes a first output electrode 320 and a second output electrode 330 (the specific locations of the first output electrode 320 and the second output electrode 330 can be seen in Figures 3 and 6). The first output electrode 320 and the second output electrode 330 have different polarities and are electrically connected to the power distribution structure 200. That is, when the first output electrode 320 is positive, the second output electrode 330 is negative, and when the first output electrode 320 is negative, the second output electrode 330 is positive. Thus, when the first output electrode 320 and the second output electrode 330 are electrically connected to the power distribution structure 200, the power distribution structure 200 and the battery assembly 300 can be electrically connected, so as to provide a stable power supply using the power distribution structure 200, and to realize power distribution and ensure the safety of the battery assembly 300.

[0077] Therefore, the first output electrode 320 and the second output electrode 330 mentioned here can also be understood as the total positive electrode and the total negative electrode of the battery assembly 300.

[0078] In some embodiments, as shown in Figures 1-6, each battery pack 310 includes a plurality of battery cells 311. The plurality of battery cells 311 extend along a first direction and are arranged sequentially in a second direction. The first output electrode 320 and the second output electrode 330 are respectively located in different groups of battery cells 311 close to the power distribution structure 200. This not only enables the electrical connection between the battery pack 300 and the power distribution structure 200, but also effectively simplifies the wiring path and length of the second electrical connector 420, reduces the cost of the second electrical connector 420, and to a certain extent avoids the situation where two second electrical connectors 420 with different voltage differences run parallel over long distances. This simplifies the busbar wiring of the battery pack 1000, providing convenience for the manufacturing cost, safety, and space utilization of the battery pack 1000.

[0079] In some embodiments, in the second direction, each battery pack 310 includes a first end close to the power distribution structure 200 and a second end away from the power distribution structure 200. The power distribution structure 200 is electrically connected to the battery cell 311 located at the first end of the battery pack 310, thereby realizing the electrical connection between the power distribution structure 200 and the battery cell 311 close to the power distribution structure 200, reducing the difficulty of electrical connection between the battery assembly 300 and the power distribution structure 200, and simplifying the wiring path and wiring length of the second electrical connector 420.

[0080] Of course, in some other embodiments, the power distribution structure 200 may also be electrically connected to the battery cell 311 located away from the power distribution structure 200, such as the power distribution structure 200 being electrically connected to the battery cell 311 located at the second end of the battery pack 310.

[0081] It should be noted that by arranging multiple battery cells 311 sequentially along the second direction, the space within the receiving cavity 110 can be rationally utilized, allowing a larger number of battery cells 311 to be placed within the receiving cavity 110, thereby increasing the capacity of the battery pack 1000 and ensuring the working performance of the battery pack 1000 to a certain extent.

[0082] In some embodiments, as shown in Figures 1-6, after the two adjacent battery packs 310 are electrically connected, the power distribution structure 200 is electrically connected to the battery cells 311 located in different groups and close to the power distribution structure 200. This reduces the difficulty of electrically connecting the power distribution structure 200 and the battery pack 310, and also effectively realizes the electrical connection between the battery assembly 300 and the power distribution structure 200, ensuring the working performance of the battery pack 1000.

[0083] In some embodiments, as shown in Figures 2, 3, 5 and 6, two adjacent battery packs 310 are electrically connected through a battery cell 311 located at the second end of the battery pack 310. This not only achieves electrical connection between two adjacent battery packs 310, but also allows the third electrical connector 430 to be arranged away from the second electrical connector 420, thus avoiding the second electrical connector 420 and the third electrical connector 430 from running in parallel to a certain extent, thereby improving the safety of the battery pack 1000.

[0084] In some embodiments, as shown in Figures 2, 3, 5 and 6, the battery assembly 300 includes two sets of battery packs 310 spaced apart along a first direction. Each set of battery packs 310 includes a plurality of battery cells 311 arranged sequentially along a second direction. The plurality of battery cells 311 in each set of battery packs 310 are connected in series. After the series connection is completed, the two sets of battery packs 310 are connected in series. Then, the two sets of battery packs 310 are electrically connected to the power distribution structure 200 respectively to realize the electrical connection between the battery assembly 300 and the power distribution structure 200, and to ensure the working performance of the battery pack 1000.

[0085] Of course, in some other embodiments, the multiple battery cells 311 of each battery pack 310 can also be connected in parallel, and two adjacent battery packs 310 can also be connected in parallel.

[0086] In some embodiments, as shown in Figures 7, 8 and 9, a first terminal 3111 and a second terminal 3112 are formed at both ends of a battery cell 311 in a first direction. One of the first terminal 3111 and the second terminal 3112 is formed as the positive electrode of the battery cell 311, and the other is formed as the negative electrode of the battery cell 311. In two adjacent battery cells 311, the first terminal 3111 of one battery cell 311 is electrically connected to the second terminal 3112 of the other battery cell 311, thereby connecting multiple battery cells 311 in series in each battery pack 310.

[0087] Optionally, within two adjacent battery packs 310, the first terminal 3111 of one battery cell 311 in one battery pack 310 is electrically connected to the second terminal 3112 of one battery cell 311 in the other battery pack 310, thereby realizing the series connection between the two adjacent battery packs 310.

[0088] Optionally, the power distribution structure 200 is electrically connected to the first terminal 3111 of a battery cell 311 near the power distribution structure 200 in one of the battery packs 310, and to the second terminal 3112 of a battery cell 311 near the power distribution structure 200 in another battery pack 310, thereby realizing the electrical connection between the battery assembly 300 and the power distribution structure 200 and ensuring the working performance of the battery pack 1000. Here, the first terminal 3111 and the second terminal 3112 are respectively formed as the first output electrode 320 and the second output electrode 330 mentioned above.

[0089] In some embodiments, as shown in Figures 3 and 6, the power distribution structure 200 includes a first connecting portion 220 and a second connecting portion 230 spaced apart in a first direction. The first connecting portion 220 and the second connecting portion 230 are electrically connected to the first output electrode 320 and the second output electrode 330, respectively. This achieves electrical connection between the battery assembly 300 and the power distribution structure 200, reduces the difficulty of electrical connection between the battery assembly 300 and the power distribution structure 200, and ensures the working performance of the battery pack 1000.

[0090] In some embodiments, the first connection portion 220 is electrically connected to the first terminal post 3111 of one of the battery cells 311 near the power distribution structure 200 via a second electrical connector 420, and the second connection portion 230 is electrically connected to the second terminal post 3112 of another battery cell 311 near the power distribution structure 200 via a second electrical connector 420, thereby realizing the electrical connection between the battery assembly 300 and the power distribution structure 200.

[0091] Of course, in some other embodiments, the first connecting part 220 may be electrically connected to the second terminal 3112 of one of the battery cells 311 near the power distribution structure 200 through the second electrical connector 420, and the second connecting part 230 may be electrically connected to the first terminal 3111 of another battery cell 311 near the power distribution structure 200 through the second electrical connector 420. In this way, the first connecting part 220 and the second connecting part 230 may be electrically connected to the battery assembly 300 respectively.

[0092] In some embodiments, the first connecting portion 220 and the second connecting portion 230 are formed as a plug hole, a metal connector, etc., one end of the second electrical connector 420 is electrically connected to the plug hole or the metal connector, and the other end of the second electrical connector 420 is electrically connected to the first terminal 3111 or the second terminal 3112 of the battery cell 311, so as to realize the electrical connection between the battery assembly 300 and the power distribution structure 200.

[0093] Meanwhile, by spaced apart in the first connecting portion 220 and the second connecting portion 230 in the first direction, the second electrical connector 420 that connects the first connecting portion 220 and the second connecting portion 230 respectively can be prevented from contacting, thereby improving the safety of the battery pack 1000.

[0094] In some embodiments, as shown in Figures 3 and 6, the first connecting portion 220 and the second connecting portion 230 are disposed close to the battery assembly 300 in the second direction. This facilitates the electrical connection between the battery assembly 300 and the power distribution structure 200 using the first connecting portion 220 and the second connecting portion 230, reducing the difficulty of electrical connection between the battery assembly 300 and the power distribution structure 200. It also further shortens the length of the second electrical connector 420, simplifying its wiring and improving manufacturing cost, safety, and space utilization of the battery pack 1000.

[0095] Of course, in some other embodiments, the first connecting portion 220 and the second connecting portion 230 may also be positioned away from the battery assembly 300 in the second direction.

[0096] In some embodiments, as shown in Figures 1, 2 and 3, the first connecting portion 220 and the second connecting portion 230 are respectively located on both sides of the power distribution structure 200 in the first direction, so that the first connecting portion 220 and the second connecting portion 230 are spaced apart in the first direction, and a plurality of second electrical connectors 420 are respectively located on both sides of the power distribution structure 200 in the first direction, thereby avoiding contact between the second electrical connectors 420 that are respectively connected to the first connecting portion 220 and the second connecting portion 230 to a certain extent, and improving the safety of the battery pack 1000.

[0097] Of course, in some other embodiments, as shown in Figures 4, 5 and 6, the first connecting portion 220 and the second connecting portion 230 may also be located in the middle of the power distribution structure 200 in the first direction, so that the plurality of second electrical connectors 420 are located in the middle of the power distribution structure 200 in the first direction.

[0098] In some embodiments, as shown in Figures 1, 2, 4, and 5, the receiving cavity 110 includes a first receiving cavity 111 and a second receiving cavity 112 spaced apart in a second direction. A power distribution structure 200 is disposed in the first receiving cavity 111, and a battery assembly 300 is disposed in the second receiving cavity 112. A connector 120 is provided on the side wall of the first receiving cavity 111 in a first direction. By placing the power distribution structure 200 in the first receiving cavity 111 and the battery assembly 300 in the second receiving cavity 112, the battery assembly 300 can be positioned on one side of the power distribution structure 200 in the second direction, reducing the difficulty of electrical connection between the battery assembly 300 and the power distribution structure 200. Furthermore, the cooperation of the first receiving cavity 111 and the second receiving cavity 112 can, to some extent, prevent the connector connecting the electrical connection terminal 210 and the connector 120 from forming an electrical connection with the battery assembly 300, thus improving the safety of the battery pack 1000.

[0099] Meanwhile, by providing connectors 120 on the sidewall of the first receiving cavity 111 in the first direction, multiple connectors 120 can be positioned directly opposite the power distribution structure 200. This not only facilitates the electrical connection between the power distribution structure 200 and the connectors 120, but also shortens the length of the first electrical connector 410, reduces the cost of using the first electrical connector 410, and to a certain extent avoids electrical connection between the first electrical connector 410 and the battery assembly 300, further improving the safety of the battery pack 1000.

[0100] In some embodiments, as shown in Figures 1, 2, 4, and 5, a first partition beam 130 and a first wiring channel 140 are provided between the first receiving cavity 111 and the second receiving cavity 112, and the first wiring channel 140 connects the first receiving cavity 111 and the second receiving cavity 112. This can also be understood as the first partition beam 130 being provided within the receiving cavity 110, so that the receiving cavity 110 is formed to include the first receiving cavity 111 and the second receiving cavity 112 spaced apart in a second direction. That is, the first partition beam 130 is located between the first receiving cavity 111 and the second receiving cavity 112, making the first receiving cavity 111 and the second receiving cavity 112 independent of each other, thereby isolating the battery assembly 300 and the power distribution structure 200, and to a certain extent preventing direct contact and electrical connection between the battery assembly 300 and the power distribution structure 200, thus improving the safety of the battery pack 1000.

[0101] Meanwhile, by setting the first partition beam 130, the molding difficulty of the first receiving cavity 111 and the second receiving cavity 112 can be reduced, and the structural strength of the battery pack 1000 can be improved.

[0102] Furthermore, by providing a first partition beam 130 connecting the first receiving cavity 111 and the second receiving cavity 112, the second electrical connector 420 can be respectively located in the first receiving cavity 111 and the second receiving cavity 112, thereby facilitating the electrical connection between the battery assembly 300 and the power distribution structure 200 using the second electrical connector 420, thus reducing the difficulty of electrical connection between the battery assembly 300 and the power distribution structure 200.

[0103] In some embodiments, as shown in Figures 1, 2, 4 and 5, a first wiring channel 140 is formed at at least one end of the first partition beam 130, so that the first partition beam 130 and the first wiring channel 140 can be simultaneously disposed between the first receiving cavity 111 and the second receiving cavity 112, and the molding difficulty of the first wiring channel 140 is reduced, thereby reducing the difficulty of electrical connection between the battery assembly 300 and the power distribution structure 200.

[0104] In some embodiments, as shown in Figures 1, 2, 4 and 5, at least one end of the first partition beam 130 is spaced apart from the side wall of the receiving cavity 110, so as to form a first wiring channel 140 connecting the first receiving cavity 111 and the second receiving cavity 112 at at least one end of the first partition beam 130, thereby reducing the molding difficulty of the first wiring channel 140 and thus reducing the electrical connection difficulty between the battery assembly 300 and the power distribution structure 200.

[0105] In some embodiments, as shown in Figures 1, 2, 4 and 5, both ends of the first partition beam 130 are formed with a first wiring channel 140 connecting the first receiving cavity 111 and the second receiving cavity 112, so that the second electrical connector 420 can selectively pass through one end of the first partition beam 130 to realize the electrical connection between the battery assembly 300 and the power distribution structure 200.

[0106] Of course, in some other embodiments, a first wiring channel 140 connecting the first receiving cavity 111 and the second receiving cavity 112 may be formed only at one end of the first partition beam 130.

[0107] It should be noted that when multiple first partition beams 130 are provided between the first receiving cavity 111 and the second receiving cavity 112, the multiple first partition beams 130 can also be arranged at intervals in the first direction so that a first wiring channel 140 is formed between two adjacent first partition beams 130.

[0108] In other embodiments, a through hole connecting the first receiving cavity 111 and the second receiving cavity 112 may be formed on the first partition beam 130 to form the first wiring channel 140.

[0109] In other words, the first wiring channel 140 can be formed between two adjacent first partition beams 130, between the first partition beam 130 and the side wall of the receiving cavity 110, and / or on the first partition beam 130.

[0110] In some embodiments, as shown in Figures 4 and 5, the first wiring channel 140 is positioned near the center of the receiving cavity 110 in the first direction. This allows the second electrical connector 420, passing through the first wiring channel 140, to be electrically connected to the first connection portion 220 and the second connection portion 230 located in the middle of the power distribution structure 200 (as shown in Figure 6). This helps to shorten the length of the second electrical connector 420, reduce its usage cost, and improve its safety.

[0111] In some embodiments, as shown in Figures 1, 2, 4, and 5, the battery assembly 300 includes at least two sets of battery packs 310 arranged along a first direction. Multiple second receiving cavities 112 are spaced apart along the first direction, and each second receiving cavity 112 corresponds one-to-one with a single battery pack 310. This not only allows the multiple battery packs 310 to be arranged along the first direction but also ensures that the multiple battery packs 310 are independent of each other, thereby isolating the multiple battery packs 310 and preventing direct contact and electrical connection to a certain extent, thus improving the safety of the battery pack 1000. Simultaneously, the second receiving cavities 112 can also limit the position of the battery packs 310, improving their positional stability and ensuring their operational performance.

[0112] In some embodiments, as shown in Figures 1, 2, 4, and 5, a second partition beam 150 and a second wiring channel 160 are provided between two adjacent second receiving cavities 112, and the second wiring channel 160 connects the two adjacent second receiving cavities 112. This can also be understood as the second partition beam 150 being provided within the receiving cavity 110, so that the receiving cavity 110 is formed to include a plurality of second receiving cavities 112 spaced apart in a first direction. That is, the second partition beam 150 is located between two adjacent second receiving cavities 112, making the two adjacent second receiving cavities 112 independent of each other, thereby isolating multiple battery packs 310 and reducing the molding difficulty of the multiple second receiving cavities 112.

[0113] Meanwhile, by setting the second partition beam 150, the molding difficulty of multiple second receiving cavities 112 can be reduced, and the structural strength of the battery pack 1000 can be improved.

[0114] Furthermore, by setting a second wiring channel 160 that connects two adjacent second receiving cavities 112, the third electrical connector 430 can be respectively installed in the two adjacent second receiving cavities 112, thereby facilitating the electrical connection of multiple battery packs 310 using the third electrical connector 430, thus reducing the difficulty of electrical connection of multiple battery packs 310.

[0115] In some embodiments, as shown in Figures 1, 2, 4 and 5, a second wiring channel 160 is formed at at least one end of a second partition beam 150, so that a second partition beam 150 and a second wiring channel 160 can be simultaneously provided between two adjacent second receiving cavities 112, and the molding difficulty of the second wiring channel 160 is reduced, thereby reducing the difficulty of electrical connection of multiple battery packs 310.

[0116] In some embodiments, as shown in Figures 1, 2, 4 and 5, at least one end of the second partition beam 150 is spaced apart from the side wall of the receiving cavity 110, so as to form a second wiring channel 160 connecting two adjacent second receiving cavities 112 at at least one end of the second partition beam 150, thereby reducing the molding difficulty of the second wiring channel 160 and thus reducing the electrical connection difficulty of multiple battery packs 310.

[0117] In some embodiments, both ends of the second partition beam 150 are formed with a second wiring channel 160 connecting two adjacent second receiving cavities 112, so that the third electrical connector 430 can selectively pass through one end of the second partition beam 150 to realize the electrical connection of multiple battery packs 310.

[0118] Of course, in some other embodiments, a second wiring channel 160 connecting two adjacent second receiving cavities 112 may be formed only at one end of the second partition beam 150.

[0119] It should be noted that when multiple second partition beams 150 are provided between two adjacent second receiving cavities 112, the multiple second partition beams 150 can also be arranged at intervals in the second direction so that a second wiring channel 160 is formed between two adjacent second partition beams 150.

[0120] In other embodiments, a through hole connecting two adjacent second receiving cavities 112 may be opened on the second partition beam 150 to form a second wiring channel 160.

[0121] In other words, the second wiring channel 160 can be formed between two adjacent second partition beams 150, between the second partition beam 150 and the side wall of the receiving cavity 110, and / or on the second partition beam 150.

[0122] In some embodiments, the battery pack 1000 further includes a sampling component (not shown in the figure), which is electrically connected to the battery pack 310 and the power distribution structure 200 respectively, so as to perform low-voltage sampling of the voltage, temperature and other properties of the battery cells 311, thereby ensuring the working performance of the battery pack 1000 and improving the safety of the battery pack 1000.

[0123] It is worth noting that this application places the battery assembly 300 in the receiving cavity 110 and on one side of the power distribution structure 200 in the second direction, and arranges multiple battery packs 310 in sequence along the first direction. This also helps to reduce the difficulty of electrical connection between the sampling component connected to the battery pack 310 and the power distribution structure 200, and helps to shorten the extension length of the connector between the sampling component and the power distribution structure 200, thus providing convenience for the manufacturing cost, safety of use and space utilization of the battery pack 1000.

[0124] In some embodiments, the sampling component is a BIC (Battery Information Collector) circuit board with its own chip. The circuit board is directly soldered to the battery cell 311 via nickel strips. The BICs are connected in series via a daisy chain and connected to the power distribution structure 200 via a wiring harness. This allows the sampling component to be electrically connected to both the battery pack 310 and the power distribution structure 200, facilitating low-voltage sampling of the voltage, temperature, and other parameters of the battery cell 311. This ensures the working performance of the battery pack 1000 and improves the safety of the battery pack 1000.

[0125] In some other embodiments, the sampling component is a flexible circuit board, which can be an FPC (Flexible Printed Circuit), an FDC (Flexible Display Circuit), or an FFC (Flexible Flat Cable), etc. The flexible circuit board does not have a chip. One end of the flexible circuit board is connected to the battery cell 311 through a nickel strip and a connecting piece, and the other end of the flexible circuit board is directly inserted into the power distribution structure 200. In this way, the sampling component can also be used to perform low-voltage sampling of the voltage, temperature, etc. of the battery cell 311.

[0126] It should be noted that when the battery cell 311 is formed as a blade battery, since a large number of blade batteries can be set in the receiving cavity 110, and the positive and negative terminals of the blade batteries are located on both sides, BIC is usually used for sampling; when the battery cell 311 is formed as a prismatic battery, since the number of prismatic batteries set in the receiving cavity 110 is limited, and the positive and negative terminals of the prismatic batteries are located on the same side, flexible circuit board is usually used for sampling.

[0127] The following description of an embodiment of the electrical device 2000 of this application is based on the accompanying drawings.

[0128] As shown in Figure 10, an electrical device 2000 according to an embodiment of this application includes a battery pack 1000.

[0129] Among them, battery pack 1000 is the aforementioned battery pack 1000, and the specific structure of battery pack 1000 will not be described in detail here.

[0130] As can be seen from the above structure, the power device 2000 in this application embodiment adopts the aforementioned battery pack 1000, thereby simplifying the structure of the power device 2000, reducing the weight and manufacturing cost of the power device 2000, and improving the safety of the power device 2000 in use.

[0131] It should be noted that the electrical device 2000 mentioned here can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc.

[0132] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0133] Other configurations of the battery pack 1000 and the power supply device 2000 having the battery pack according to the embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0134] In the description of this specification, the references to the terms "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0135] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery pack (1000), wherein, The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly.

2. The battery pack (1000) of claim 1, wherein, The application relates to a power distribution structure and a battery assembly.

3. The battery pack (1000) according to claim 1 or 2, wherein The application relates to a power distribution structure and a battery assembly.

4. The battery pack (1000) of claim 3, wherein, The application relates to a power distribution structure and a battery assembly.

5. The battery pack (1000) of claim 4, wherein, The application relates to a power distribution structure and a battery assembly.

6. The battery pack (1000) of claim 5, wherein, The application relates to a power distribution structure and a battery assembly.

7. The battery pack (1000) of claim 6, wherein, The application relates to a power distribution structure and a battery assembly.

8. The battery pack (1000) according to any one of claims 3-6, wherein, The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. The application relates to a power distribution structure and a battery assembly. 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10. The battery pack (1000) of claim 9, wherein, The first wiring channel (140) is formed at at least one end of the first partition beam (130); and / or, The first wiring channel (140) is arranged near the middle of the accommodating cavity (110) in the first direction.

11. The battery pack (1000) according to any one of claims 8-10, wherein, The second accommodating cavity (112) includes a plurality of second accommodating cavities (112), and the plurality of second accommodating cavities (112) are arranged at intervals in the first direction and correspond to the plurality of battery groups (310) one by one.

12. The battery pack (1000) of claim 11, wherein, A second partition beam (150) and a second wiring channel (160) are arranged between two adjacent second accommodating cavities (112), and the second wiring channel (160) communicates the two adjacent second accommodating cavities (112).

13. An electrically powered device (2000), wherein The battery pack (1000) according to any one of claims 1-12.

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