Battery pack and vehicle having same

Abstract

A battery pack (100) and a vehicle having same. The battery pack (100) comprises: a plurality of battery modules (1), wherein the plurality of battery modules (1) are stacked in a first direction, and each battery module (1) comprises a plurality of battery cells (111); and a BDU module (2), the BDU module (2) being arranged on one side of the plurality of battery modules (1) in a second direction, wherein a current main input electrode (12) of one of two adjacent battery modules (1) and a current main output electrode (13) of the other one thereof are both connected to the BDU module (2) so that the two adjacent battery modules (1) are connected in series by means of the BDU module (2), and the second direction is perpendicular to the first direction.

Description

Battery pack and vehicle having the same

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202323038276.2 and application date of November 9, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of vehicle technology, and in particular to a battery pack and a vehicle having the same. Background Art

[0004] As electric vehicles become more prevalent, demand for their range is growing, and existing battery packs are no longer able to meet these demands. To meet this increasing demand, battery packs in the prior art utilize stacked battery packs to increase capacity. However, stacked battery packs have limited space for high-voltage connections, resulting in complex high-voltage circuit crossover structures and potential safety risks.

[0005] Summary of the Invention

[0006] In order to solve the problem of complex high-voltage connection structure of stacked battery packs in the prior art, the present application proposes a battery pack.

[0007] The present application also proposes a vehicle, which includes the above-mentioned battery pack.

[0008] According to an embodiment of the present application, the battery pack includes: a plurality of battery packs, the plurality of battery packs are stacked in a first direction, each of the battery packs includes a plurality of battery cells; a BDU module, the BDU module is arranged on one side of the plurality of battery packs in a second direction, the total current input pole of one of the two adjacent battery packs and the total current output pole of the other are connected to the BDU module so that the two adjacent battery packs are connected in series through the BDU module, and the second direction is perpendicular to the first direction.

[0009] According to the battery pack of the embodiment of the present application, a plurality of battery packs are stacked in a first direction, and two adjacent battery packs are connected in series through a BDU module. This can increase the number of battery cells in the battery pack, make the battery cells more compactly arranged in the battery pack, improve the space utilization of the battery pack in the first direction, increase the energy density of the battery pack, and thus improve the cruising range to meet the user's usage needs. In addition, while meeting the power demand, the stacked multi-layer battery packs can be connected in the BDU module, which simplifies the high-voltage connection structure of the stacked battery pack and improves the safety of the battery pack.

[0010] In addition, the battery pack according to the present application may also have the following additional technical features:

[0011] In some embodiments, each of the battery packs includes a plurality of battery cell groups spaced apart along a third direction, each of the battery cell groups includes a plurality of the battery cells arranged in the second direction, and the third direction, the second direction, and the first direction are perpendicular to each other.

[0012] In some embodiments, the multiple battery cells in each battery cell group are connected in series, and the multiple battery cell groups in the same battery pack are connected in series.

[0013] In some embodiments, each of the battery cells has a positive electrode and a negative electrode located at two ends of the third direction, and the positive electrodes of two adjacent battery cells in the same battery cell group are located at opposite ends of the third direction.

[0014] In some embodiments, each of the battery cells has a positive electrode and a negative electrode arranged at both ends of the third direction, and the two adjacent battery cell groups in the same battery pack are respectively the first battery cell group and the second battery cell group, and the two battery cells opposite to each other in the third direction are respectively the first battery cell and the second battery cell, and the positive electrodes of the first battery cell and the second battery cell are located at opposite ends of the third direction.

[0015] In some embodiments, two adjacent battery cell groups in the same battery pack are connected via a first connecting row.

[0016] In some embodiments, the first connecting row is located on a side of the battery pack away from the BDU module, and the corresponding first connecting rows in multiple battery packs have the same extension direction, are flush at both ends in the length direction, and are arranged opposite to each other in the first direction.

[0017] In some embodiments, the total current input terminal and the total current output terminal of each battery pack are located at one end of the battery pack close to the BDU module.

[0018] In some embodiments, the battery pack further includes: a rear-drive high-voltage port, which is located on a side of the plurality of battery packs away from the BDU module and is connected to the BDU module through a second connecting row.

[0019] In some embodiments, projections of the first connecting row and the second connecting row on a plane perpendicular to the first direction do not intersect.

[0020] In some embodiments, the BDU module has a pre-charge module therein, and the second connection row is connected to the pre-charge module.

[0021] In some embodiments, each of the battery packs includes two of the battery cell groups, and the battery pack further includes: an acquisition circuit board, wherein there are multiple acquisition circuit boards and they correspond one-to-one to the multiple battery cell groups in the multiple battery packs, and the corresponding two acquisition circuit boards in the same battery pack are respectively located on the side of the two battery cell groups away from each other.

[0022] In some embodiments, the battery cells of the plurality of battery packs have the same layout.

[0023] The present application also provides a vehicle having the above embodiment.

[0024] According to the vehicle of the embodiment of the present application, by providing the above-mentioned battery pack, a plurality of battery groups are stacked in a first direction, and two adjacent battery groups are connected in series through a BDU module. This can meet the power demand while enabling the stacked multi-layer battery groups to be connected within the BDU module, thereby simplifying the high-voltage connection structure of the stacked battery pack and improving the safety of the battery pack.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] FIG1 is a perspective view of a battery pack according to an embodiment of the present application from a first angle;

[0028] FIG2 is a perspective view of a battery pack according to an embodiment of the present application from a second angle, wherein the BDU module is not shown;

[0029] FIG3 is a perspective view of a battery pack according to an embodiment of the present application from a third angle, wherein the BDU module is not shown;

[0030] FIG4 is a circuit diagram of a battery pack according to an embodiment of the present application;

[0031] FIG5 is a schematic diagram showing the connection between the battery pack and the BDU module of the battery pack according to an embodiment of the present application.

[0032] Reference numerals:

[0033] 100. Battery pack;

[0034] 1. Battery pack; 11. Cell pack; 111. Cell; 12. Current input terminal; 13. Current output terminal; 14. First connecting bar; 15. Second connecting bar; 16. Connecting piece; 17. First battery pack; 18. Second battery pack;

[0035] 2. BDU module;

[0036] 3. Rear drive high-voltage port;

[0037] 4. Collect circuit boards. DETAILED DESCRIPTION

[0038] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0041] In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediary; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0042] The battery pack 100 according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0043] As shown in FIG. 1 , a battery pack 100 according to an embodiment of the present application includes a plurality of battery packs 1 and a BDU module 2 .

[0044] Specifically, referring to FIG1 , a plurality of battery packs 1 are stacked in a first direction (refer to the up and down direction shown in FIG2 ), each battery pack 1 includes a plurality of battery cells 111, and a BDU module 2 (battery energy distribution unit) is arranged on one side of the plurality of battery packs 1 in a second direction (refer to the front and back direction shown in FIG1 ). The total current input pole 12 of one of the two adjacent battery packs 1 in the first direction and the total current output pole 13 of the other are both connected to the BDU module 2 so that the two adjacent battery packs 1 are connected in series through the BDU module 2, and the second direction is perpendicular to the first direction.

[0045] It can be understood that multiple battery packs 1 are stacked in the first direction, and two adjacent battery packs 1 are connected in series through the BDU module 2, which can increase the number of battery cells 111 in the battery pack 100, make the battery cells 111 more compactly arranged in the battery pack 100, improve the space utilization of the battery pack 100 in the first direction, increase the energy density of the battery pack 100, and thus improve the cruising range to meet the user's usage needs. It can also enable the stacked multi-layer battery packs 1 to be connected in the BDU module 2 while meeting the power requirements, simplify the high-voltage connection structure of the stacked battery pack 100, and improve the safety of the battery pack 100.

[0046] For example, the number of battery packs 1 may be two, three, or four, and the number of battery cells 111 in each battery pack 1 may be four, eight, twelve, sixteen, or twenty.

[0047] In a specific example, referring to Figure 1, there are two battery groups 1, and the two battery groups 1 are respectively a first battery group 17 and a second battery group 18. The first battery group 17 and the second battery group 18 are stacked in the up and down directions (as shown in Figure 5), and the first battery group 17 is located on the upper side of the second battery group 18. The total current input pole 12 of the first battery group 17 and the total current output pole 13 of the second battery group 18 are both connected to the BDU module 2 so that the first battery group 17 and the second battery group 18 are connected in series through the BDU module 2.

[0048] In the embodiment of the present application, the battery cell 111 can be a short battery cell or a long battery cell. It should be noted that short battery cells and long battery cells have clear definitions in this field. A short battery cell is a battery cell whose length does not exceed a first preset value, and a long battery cell is a battery cell whose length exceeds a second preset value. The above-mentioned first preset value and second preset value can be equal or unequal, and the first preset value can even be greater than the second preset value. For example, the length of a short battery cell can be 400mm-900mm, and the length of a long battery cell can be 600mm-1200mm.

[0049] According to the battery pack 100 of the embodiment of the present application, multiple battery packs 1 are stacked in a first direction, and two adjacent battery packs 1 are connected in series through a BDU module 2. This can increase the number of battery cells 111 in the battery pack 100, make the battery cells 111 more compactly arranged in the battery pack 100, improve the space utilization of the battery pack 100 in the first direction, increase the energy density of the battery pack 100, and thus improve the cruising range to meet the user's usage needs. In addition, while meeting the power demand, the stacked multi-layer battery packs 1 can be connected in the BDU module 2, simplifying the high-voltage connection structure of the stacked battery pack 100 and improving the safety of the battery pack 100.

[0050] In some embodiments of the present application, referring to Figures 2 and 3, each battery pack 1 includes a plurality of cell groups 11 spaced apart along a third direction (as shown in Figure 2), and each cell group 11 includes a plurality of cell groups 111 arranged in the second direction. The third direction, the second direction, and the first direction are perpendicular to each other, which can further increase the number of cell groups 111 in the battery pack 100, so that the cell groups 111 are arranged more compactly in the battery pack 100, thereby improving the space utilization of the battery pack 100 in the second and third directions, increasing the energy density of the battery pack 100, and thereby improving the cruising range to meet the user's usage needs.

[0051] For example, the number of the battery cell groups 11 spaced apart along the third direction in each battery pack 1 may be two, three, four or five.

[0052] In a specific example, referring to Figures 2 and 4 , each battery pack 1 includes two cell groups 11 spaced apart along the third direction, and each cell group 11 includes a plurality of cells 111 arranged in the second direction. This further increases the number of cells 111 within the battery pack 100, allowing the cells 111 to be arranged more compactly within the battery pack 100, improving the space utilization of the battery pack 100 in the second and third directions, increasing the energy density of the battery pack 100, and thereby improving the range to meet user needs. In some embodiments, the length of each cell 111 can be 400 mm to 900 mm, i.e., each cell 111 can be a short cell, and the two cell groups 11 in the same battery pack 1 are arranged side by side to increase the arrangement density of the cells 111.

[0053] Of course, the present application is not limited thereto. Each battery pack 1 may also include only one cell group 11, with multiple cells 111 in the cell group 11 arranged in a single row. In some embodiments, the length of each cell 111 may be 600 mm to 1200 mm, that is, each cell 111 may be a long cell to increase the arrangement density of the cells 111.

[0054] In an embodiment of the present application, referring to FIG4 , multiple battery cells 111 in each battery cell group 11 are connected in series, and multiple battery cell groups 11 in the same battery pack 1 are connected in series, thereby connecting all battery cells 111 in the same battery pack 1 in series, ensuring the layout of the high-voltage circuit of the battery pack 100.

[0055] Specifically, referring to Figure 1, two adjacent battery cells 111 in each battery cell group 11 are connected in series through a connecting piece 16. The connecting piece 16 is located at one end of the battery cell group 11 along the second direction, and the two ends of the connecting piece 16 in the length direction are respectively connected to the positive or negative poles of the two adjacent battery cells 111 in the same battery cell group 11, thereby realizing the series connection of multiple battery cells 111 in each battery cell group 11.

[0056] In an embodiment of the present application, referring to FIG4 , each battery cell 111 has a positive electrode and a negative electrode located at both ends of a third direction, and the positive electrodes of two adjacent battery cells 111 in the same battery cell group 11 are located at opposite ends of the third direction, so that the positive electrode and the negative electrode in each battery cell 111 are respectively located at both ends of the third direction, which can increase the spacing between different electrodes, prevent the risk of high-voltage arc breakdown, facilitate the arrangement and assembly of multiple battery cells 111, ensure the reliability of the assembly of the battery cells 111, and facilitate the connecting piece 16 to connect the two adjacent battery cells 111 in the same battery cell group 11 in series.

[0057] In an embodiment of the present application, referring to FIG4 , each battery cell 111 has a positive electrode and a negative electrode arranged at both ends of a third direction, and the two adjacent battery cell groups 11 in the same battery pack 1 are respectively the first battery cell group and the second battery cell group, and the two battery cells 111 opposite to each other in the third direction of the first battery cell group and the second battery cell group are respectively the first battery cell and the second battery cell, and the positive electrodes of the first battery cell and the second battery cell are located at opposite ends of the third direction, which can stagger the total current input electrode 12 and the total current output electrode 13 of the same battery pack 1, simplify the design difficulty of the BDU module 2, reduce the high voltage risk on the side of the battery pack 1 close to the BDU module 2, and improve the safety and reliability of the battery pack 100.

[0058] In the embodiment of the present application, as shown in FIG3 , two adjacent cell groups 11 in the same battery pack 1 are connected via a first connecting bar 14 , thereby reducing the number of interfaces for electrically connecting the BDU module 2 to multiple battery packs 1 and the number of wiring between the BDU module 2 and multiple battery packs 1, thereby reducing the risk of high-voltage breakdown. It is understood that by connecting two adjacent cells 111 in the same cell group 11 in series via the connecting piece 16 , and connecting two adjacent cell groups 11 in the same battery pack 1 in series via the first connecting bar 14 , all cells 111 in the same battery pack 1 are connected in series, ensuring the layout of the high-voltage circuit of the battery pack 100 . In the embodiment of the present application, the first connecting bar 14 is an aluminum bar.

[0059] In an embodiment of the present application, referring to Figures 1 and 3 , the first connecting row 14 is located on the side of the battery pack 1 away from the BDU module 2, and the corresponding first connecting rows 14 in the multiple battery packs 1 have the same extension direction, and the two ends of the length direction (refer to the third direction shown in Figure 3 ) are flush and arranged relative to each other in the first direction, thereby avoiding the horizontal and vertical staggered layout between the first connecting rows 14 corresponding to the multiple battery packs 1, ensuring sufficient electrical spacing, effectively reducing the electrical safety risks under various safety abuse test conditions, and improving the safety and reliability of the battery pack 100.

[0060] In some embodiments of the present application, referring to Figures 1 and 2 , the total current input pole 12 and the total current output pole 13 of each battery group 1 are located at one end of the battery group 1 close to the BDU module 2, which can facilitate the connection of the total current input pole 12 and the total current output pole 13 of each battery group 1 with the BDU module 2, ensuring that two adjacent battery groups 1 in the first direction are connected in series through the BDU module 2, simplifying the routing between the BDU module 2 and multiple battery groups 1, and facilitating the high-voltage circuit layout of the battery pack 100.

[0061] In a specific example, referring to Figure 1, there are two battery groups 1, and the two battery groups 1 are respectively a first battery group 17 and a second battery group 18. The first battery group 17 and the second battery group 18 are stacked in the up and down directions, and the first battery group 17 is located on the upper side of the second battery group 18. The total current input pole 12 of the first battery group 17 and the total current output pole 13 of the second battery group 18 are both connected to the BDU module 2 so that the first battery group 17 and the second battery group 18 are connected in series through the BDU module 2.

[0062] In the example shown in Figures 4 and 5, current flows from the BDU module 2 through the current total input pole 12 of the first battery group 17 into a cell group 11 of the first battery group 17, powering the cell 111. Through the connection of the first connecting bar 14 of the first battery group 17, the current flows from one cell group 11 to the adjacent cell group 11, and then flows back to the BDU module 2 through the current total output pole 13 of the first battery group 17. The adjacent first battery group 17 and second battery group 18 are connected in series through the BDU module 2. Current flows from the BDU module 2 through the current total input pole 12 of the second battery group 18 into a cell group 11 of the second battery group 18. Through the connection of the first connecting bar 14 of the second battery group 18, the current flows from one cell group 11 to the adjacent cell group 11, and then returns to the BDU module 2 through the current total output pole 13 of the second battery group 18, thereby realizing a high-voltage circuit for the battery pack 100, complying with electrical safety design, and ensuring the safety and reliability of the battery pack 100.

[0063] In an embodiment of the present application, as shown in Figures 1 and 3 , the battery pack 100 further includes a rear-drive high-voltage port 3 . The rear-drive high-voltage port 3 is located on a side of the multiple battery packs 1 away from the BDU module 2 and is connected to the BDU module 2 via a second connecting bar 15 . The end of the rear-drive high-voltage port 3 away from the second connecting bar 15 is connected to the rear-drive motor control system. The rear-drive motor control system can be driven and powered by the second connecting bar 15 . The provision of the second connecting bar 15 reduces vehicle-level wiring outside the battery pack 100, simplifies vehicle wiring layout, and improves the efficiency of assembly and disassembly of the battery pack 100 . In an embodiment of the present application, the second connecting bar 15 is a copper-aluminum composite.

[0064] In an embodiment of the present application, referring to Figures 3 and 4 , the projections of the first connecting row 14 and the second connecting row 15 on a plane perpendicular to the first direction do not intersect, so that the electrical gap between the first connecting row 14 and the second connecting row 15 can be reasonably controlled, avoiding the staggered layout of the first connecting row 14 and the second connecting row 15, making the wiring clean and tidy, reducing the high-voltage risk of the battery pack 100, ensuring the electrical safety of the battery pack 100, and also improving the EMC (electromagnetic compatibility) test reliability capability.

[0065] In an embodiment of the present application, a pre-charging module is provided in the BDU module 2, and the second connecting row 15 is connected to the pre-charging module. The pre-charging module includes a pre-charging resistor and a pre-charging relay. It can be understood that by performing corresponding logical control in the BMS (battery management system), the battery pack 100 can be charged through the second connecting row 15. Combined with the front-wheel drive high-voltage port of the battery pack 100, the front-wheel drive high-voltage port and the rear-wheel drive high-voltage port 3 can be used to charge the battery pack 100 at the same time, and the setting of the pre-charging module can play a protective role and improve the safety of the battery pack 100.

[0066] In an embodiment of the present application, referring to Figures 1 and 4 , each battery pack 1 includes two cell groups 11, and the battery pack 100 also includes an acquisition circuit board 4. The acquisition circuit board 4 is used for low-voltage signal acquisition. There are multiple acquisition circuit boards 4 and they correspond one-to-one to the multiple cell groups 11 in the multiple battery packs 1. The corresponding two acquisition circuit boards 4 in the same battery pack 1 are respectively located on the side of the two cell groups 11 away from each other, thereby increasing the distance between the cell 111 and the inner wall of the battery pack 100, and providing a certain buffer space when the battery pack 100 collides, thereby reducing the safety risks of collision and abuse testing.

[0067] In some embodiments of the present application, as shown in FIG4 , the layout of the battery cells 111 of multiple battery packs 1 is the same, which can ensure the consistency of the stacking assembly of the battery cells 111, reduce design and production materials, avoid increasing process design and control requirements, reduce the production risk of the battery pack 100, and speed up the production rhythm and improve production efficiency.

[0068] The present application also provides a vehicle having the battery pack 100 of the above embodiment.

[0069] According to the vehicle of the embodiment of the present application, the above-mentioned battery pack 100 is provided, and multiple battery groups 1 are stacked in a first direction, and two adjacent battery groups 1 are connected in series through a BDU module 2. While meeting the power demand, the stacked multi-layer battery groups 1 can be connected within the BDU module 2, which simplifies the high-voltage connection structure of the stacked battery pack 100 and improves the safety of the battery pack 100.

[0070] Other structures and operations of the battery pack 100 and the vehicle according to the embodiment of the present application are well known to those skilled in the art and will not be described in detail here.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0072] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery pack, wherein: include: A plurality of battery packs (1), wherein the plurality of battery packs (1) are stacked in a first direction, and each of the battery packs (1) comprises a plurality of battery cells (111); A BDU module (2), the BDU module (2) being arranged on one side of the second direction of the plurality of battery groups (1), the total current input pole (12) of one of two adjacent battery groups (1) and the total current output pole (13) of the other are both connected to the BDU module (2) so that the two adjacent battery groups (1) are connected in series through the BDU module (2), and the second direction is perpendicular to the first direction.

2. The battery pack according to claim 1, wherein: Each of the battery groups (1) comprises a plurality of battery cell groups (11) arranged at intervals along a third direction, each of the battery cell groups (11) comprises a plurality of battery cells (111) arranged in the second direction, and the third direction, the second direction and the first direction are perpendicular to each other.

3. The battery pack according to claim 2, wherein: The multiple battery cells (111) in each battery cell group (11) are connected in series, and the multiple battery cell groups (11) in the same battery group (1) are connected in series.

4. The battery pack according to claim 2, wherein: Each of the battery cells (111) has a positive electrode and a negative electrode disposed at two ends of the third direction, and the positive electrodes of two adjacent battery cells (111) in the same battery cell group (11) are located at two opposite ends of the third direction.

5. The battery pack according to claim 2, wherein: Each of the battery cells (111) has a positive electrode and a negative electrode arranged at two ends of the third direction; two adjacent battery cell groups (11) in the same battery group (1) are respectively a first battery cell group and a second battery cell group; two battery cells (111) opposite to each other in the third direction of the first battery cell group and the second battery cell group are respectively a first battery cell and a second battery cell; and the positive electrodes of the first battery cell and the second battery cell are located at opposite ends of the third direction.

6. The battery pack according to claim 2, wherein: Two adjacent battery cell groups (11) in the same battery group (1) are connected via a first connecting row (14).

7. The battery pack according to claim 6, wherein: The first connection row (14) is located on a side of the battery pack (1) away from the BDU module (2); the first connection rows (14) corresponding to the plurality of battery packs (1) have the same extension direction, are flush at both ends in the length direction and are arranged opposite to each other in the first direction.

8. The battery pack according to any one of claims 1 to 7, wherein: The total current input pole (12) and the total current output pole (13) of each battery pack (1) are both located at one end of the battery pack (1) close to the BDU module (2).

9. The battery pack according to claim 6, wherein: The battery pack (100) further comprises: A rear drive high voltage port (3), wherein the rear drive high voltage port (3) is arranged at a location far away from the BDU module and at a location far away from the battery packs (1) (2) and is connected to the BDU module (2) via a second connecting row (15).

10. The battery pack according to claim 9, wherein: The projections of the first connecting row (14) and the second connecting row (15) on a plane perpendicular to the first direction do not intersect.

11. The battery pack according to claim 9, wherein: The BDU module (2) has a pre-filled module therein, and the second connection row (15) is connected to the pre-filled module.

12. The battery pack according to claim 2, wherein: Each of the battery packs (1) comprises two battery cell groups (11), and the battery pack (100) further comprises: A collection circuit board (4), wherein the collection circuit boards (4) are multiple and correspond one-to-one to the multiple battery cell groups (11) in the multiple battery groups (1), and the two corresponding collection circuit boards (4) in the same battery group (1) are respectively located on the side of the two battery cell groups (11) away from each other.

13. The battery pack according to any one of claims 1 to 12, wherein: The layout of the battery cells (111) of the plurality of battery packs (1) is the same.

14. A vehicle, wherein: Comprising a battery pack (100) according to any one of claims 1 to 13.

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