Battery module, battery pack and vehicle

Abstract

The battery module (100), battery pack, and vehicle include a battery module (100) comprising a plurality of battery cells (1), a bus bar (2), a bus bar bracket (3), and a protective cover (4). The bus bar (2) is used to electrically connect two battery cells (1) and to limit the bus bar bracket (3) to the battery cells (1). The bus bar bracket (3) has a first mounting portion (31) and a second mounting portion (32). The protective cover (4) is located on one side of the bus bar bracket (3) remote from the battery cells (1). The protective cover (4) has a third mounting portion (41) and a fourth mounting portion (42). The first mounting portion (31) and the second mounting portion (32) are combined with the third mounting portion (41) and the fourth mounting portion (42), respectively, to fix the protective cover (4) to the bus bar bracket (3).

Description

[Technical Field]

[0001] This application relates to the field of battery technology, and more particularly to battery modules, battery packs, and vehicles. [Background technology]

[0002] In the related art, in the case of a battery module in which battery cells are placed horizontally (e.g., a blade battery), the bus bar bracket is usually provided on the side of the battery module, and the protective cover of the battery module is assembled to correspond to the bus bar bracket, and the protective cover is also attached to the side of the battery module. This makes it inconvenient to attach the protective cover, and at the same time, it is difficult to ensure the reliability of the assembly because the protective cover and bus bar bracket are attached to the side of the battery module. Summary of the Invention [Problem to be solved by the invention]

[0003] The present application aims to solve, at least to some extent, one of the technical problems in the related art.

[0004] Therefore, one object of the present application is to propose a battery module.

[0005] Another object of the present application is to propose a battery pack.

[0006] Another object of the present application is to propose a vehicle. [Means for solving the problem]

[0007] In order to achieve the above object, an embodiment of a first aspect of the present application proposes a battery module, A plurality of battery cells; a bus bar and a bus bar bracket, the bus bar being used to electrically connect two battery cells and to limit the bus bar bracket to the battery cells, the bus bar bracket having a first mounting portion and a second mounting portion; and a protective cover located on one side of the bus bar bracket farther from the battery cells, having a third mounting portion and a fourth mounting portion, the protective cover being fixed to the bus bar bracket by combining the first mounting portion and the second mounting portion with the third mounting portion and the fourth mounting portion, respectively.

[0008] In the battery module according to the embodiment of the present application, first and second mounting portions are respectively installed on the bus bar bracket, and third and fourth mounting portions are installed on the protective cover. The combined mounting of the first and third mounting portions and the combined mounting of the second and fourth mounting portions enables the protective cover and the bus bar bracket to be fixedly mounted, making the assembly process simple, convenient, and reliable.

[0009] To achieve the above object, an embodiment of a second aspect of the present application proposes a battery pack including the battery module according to the embodiment of the first aspect.

[0010] The battery pack according to the embodiment of the present application is provided with the battery modules, and has first and second mounting portions respectively attached to the bus bar brackets, and third and fourth mounting portions attached to the protective cover. The combined mounting of the first and third mounting portions and the combined mounting of the second and fourth mounting portions enables the protective cover and the bus bar brackets to be fixedly attached, making the assembly process simple, convenient, and reliable.

[0011] To achieve the above object, an embodiment of a third aspect of the present application proposes a vehicle including the battery pack according to the embodiment of the second aspect.

[0012] A vehicle according to an embodiment of the present application is provided with the battery pack described above, and has first and second mounting portions respectively attached to the bus bar bracket, and third and fourth mounting portions attached to the protective cover. The combined attachment of the first and third mounting portions and the combined attachment of the second and fourth mounting portions enables the protective cover and the bus bar bracket to be fixedly attached, making the assembly process simple, convenient, and reliable.

[0013] Additional aspects and advantages of the present application will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by practice of the present application. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 2 is an exploded view of a battery module according to an embodiment of the present application. [Figure 2] 1 is a schematic diagram of a battery cell, a bus bar, a bus bar bracket, and a circuit board according to one embodiment of the present application. [Figure 3] FIG. 2 is a diagram illustrating a combination of battery modules according to an embodiment of the present application. [Figure 4] FIG. 1 is a perspective view of a bus bar bracket according to an embodiment of the present application. [Figure 5] FIG. 1 is a perspective view of a protective cover according to one embodiment of the present application. [Figure 6] 10A to 10C are cross-sectional views illustrating a process of assembling a bus bar bracket and a protective cover according to an embodiment of the present invention. [Figure 7] 10 is a cross-sectional view of a bus bar bracket and a protective cover according to an embodiment of the present invention after being combined. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, the embodiments of the present application shown in the drawings will be described in detail, and in all the drawings, the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions. The embodiments described through the following reference drawings are illustrative and are intended to explain the present application, and should not be understood as limitations on the present invention.

[0016] Hereinafter, a battery module 100, a battery pack, and a vehicle according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0017] As shown in Figures 1 to 7 , a battery module 100 according to an embodiment of the first aspect of the present application comprises a plurality of battery cells 1, a bus bar 2, a bus bar bracket 3, and a protective cover 4. The bus bar 2 is used to electrically connect two battery cells 1 and to limit the bus bar bracket 3 to the battery cells 1. The bus bar bracket 3 has a first mounting portion 31 and a second mounting portion 32. The protective cover 4 is located on one side of the bus bar bracket 3 remote from the battery cells 1 and has a third mounting portion 41 and a fourth mounting portion 42. The first mounting portion 31 and the second mounting portion 32 are combined with the third mounting portion 41 and the fourth mounting portion 42, respectively, to fix the protective cover 4 to the bus bar bracket 3.

[0018] Specifically, as shown in FIG. 1 , the battery module 100 includes a plurality of battery cells 1, which are arranged horizontally in sequence. Furthermore, as shown in FIG. 2 , there are a plurality of busbars 2, each of which is used to electrically connect two adjacent battery cells 1, thereby enabling the series connection of the plurality of battery cells 1 through the busbars 2. Furthermore, before electrically connecting the busbars 2 to the battery cells 1, the busbars 2 and busbar brackets 3 are pre-assembled, with the busbars 2 pre-assembled on one side of the busbar brackets 3 farther from the battery cells 1. After the busbars 2 and busbar brackets 3 are pre-assembled, the busbars 2 are welded to the corresponding battery cells 1. After welding the busbars 2 to the battery cells 1, the busbar brackets 3 are limited between the battery cells 1 and the busbars 2, thereby achieving a fixed installation of the busbar brackets 3.

[0019] Furthermore, as shown in FIGS. 4 to 7, the bus bar bracket 3 is provided with a first mounting portion 31 and a second mounting portion 32, and the protective cover 4 is provided with a third mounting portion 41 and a fourth mounting portion 42. The protective cover 4 is attached to one side of the bus bar bracket 3 that is farther from the battery cells 1. When attaching the protective cover 4 to the bus bar bracket 3, as shown in FIG. 6, the protective cover 4 is first tilted at a certain angle to attach the first mounting portion 31 and the third mounting portion 41 together, and then the protective cover 4 is attached to the bus bar bracket 3 with the third mounting portion 41 axially aligned. 7, the protective cover 4 and the busbar bracket 3 are fixedly attached by the combined attachment of the first and third mounting parts 31 and 41 and the combined attachment of the second and fourth mounting parts 32 and 42. The entire attachment process is simple and convenient, and the first and third mounting parts 31 and 41, and the second and fourth mounting parts 32 and 42 can be attached tightly, ensuring the reliability of the assembly between the protective cover 4 and the busbar bracket 3.

[0020] In the battery module 100 according to the embodiment of the present application, the first mounting portion 31 and the second mounting portion 32 are respectively installed on the bus bar bracket 3, and the third mounting portion 41 and the fourth mounting portion 42 are respectively installed on the protective cover 4. The combined mounting of the first mounting portion 31 and the third mounting portion 41 and the combined mounting of the second mounting portion 32 and the fourth mounting portion 42 enables the protective cover 4 to be fixedly mounted to the bus bar bracket 3, making the assembly process simple, convenient, and reliable.

[0021] In some embodiments of the present application, one of the first mounting portion 31 and the third mounting portion 41 is a positioning groove, and the other is a positioning boss, and the positioning boss is mounted in the positioning groove.

[0022] Specifically, if one of the first mounting portion 31 and the third mounting portion 41 is a positioning groove, the other of the first mounting portion 31 and the third mounting portion 41 is a positioning boss. In other words, if the first mounting portion 31 is a positioning groove, the third mounting portion 41 is a positioning boss, and if the first mounting portion 31 is a positioning boss, the third mounting portion 41 is a positioning groove. Furthermore, as shown in Figures 4 to 7, an example will be described in which the first mounting portion 31 is a positioning boss and the third mounting portion 41 is a positioning groove. When assembling the protective cover 4 and the bus bar bracket 3, as shown in Figure 6, first, the protective cover 4 is tilted at a certain angle, and the positioning boss of the bus bar bracket 3 is combined with the positioning groove of the protective cover 4. The positioning boss is attached to the positioning groove, and here, the positioning boss abuts against the inner wall of the positioning groove, thereby placing the protective cover 4 on the bus bar bracket 3. This achieves rapid positioning between the protective cover 4 and the bus bar bracket 3 and improves assembly efficiency.

[0023] In some embodiments of the present application, one of the second mounting portion 32 and the fourth mounting portion 42 is a first mounting hole, and the other is a first engagement portion, which is suitable for engaging with the first mounting hole.

[0024] Specifically, if one of the second mounting portion 32 and the fourth mounting portion 42 is defined as a first mounting hole, the other of the second mounting portion 32 and the fourth mounting portion 42 is defined as a first engagement portion. In other words, if the second mounting portion 32 is defined as a first mounting hole, the fourth mounting portion 42 is defined as a first engagement portion, and if the second mounting portion 32 is defined as a first engagement portion, the fourth mounting portion 42 is defined as a first mounting hole. Furthermore, as shown in Figures 4 to 7, an example will be described in which the second mounting portion 32 is defined as the first mounting hole and the fourth mounting portion 42 is defined as the first engagement portion. When the protective cover 4 and the bus bar bracket 3 are assembled, first, the protective cover 4 is tilted at a certain angle to combine and attach the first mounting portion 31 and the second mounting portion 32. Note that the bus bar bracket 3 supports When the protective cover 4 further includes a platform 38 and the first mounting portion 31 and the second mounting portion 32 are combined for installation, the support platform 38 provides a certain level of support for the protective cover 4. The protective cover 4 is then rotated in a direction closer to the busbar bracket 3 with the third mounting portion 41 as its axial direction, causing the first engaging portion to gradually approach the first mounting hole until the buckle of the first engaging portion passes through the first mounting hole and engages with the side of the busbar bracket 3 closer to the battery cell 1. This allows the protective cover 4 to be tightly attached to the busbar bracket 3 through the combined installation of the first engaging portion and the first mounting hole, improving the reliability of the assembly of the protective cover 4 and the busbar bracket 3.

[0025] In some embodiments of the present application, as shown in Figures 4 and 5, the first mounting portion 31, the second mounting portion 32, the third mounting portion 41, and the fourth mounting portion 42 are all multiple, and the multiple first mounting portions 31 and the multiple third mounting portions 41 correspond one-to-one, and the multiple second mounting portions 32 and the multiple fourth mounting portions 42 correspond one-to-one.

[0026] Specifically, the numbers of the first mounting portions 31, second mounting portions 32, third mounting portions 41, and fourth mounting portions 42 can be set according to specific needs and are not specifically limited herein. At the same time, when assembling the protective cover 4 and the bus bar bracket 3, it is ensured that the multiple first mounting portions 31 are assembled in a one-to-one correspondence with the multiple third mounting portions 41, and the multiple second mounting portions 32 are assembled in a one-to-one correspondence with the multiple fourth mounting portions 42. Thus, by installing the multiple first mounting portions 31, the multiple second mounting portions 32, the multiple third mounting portions 41, and the multiple fourth mounting portions 42, the protective cover 4 can be tightly attached to the bus bar bracket 3, and the reliability of the assembly of the protective cover 4 and the bus bar bracket 3 is further improved.

[0027] In some embodiments of the present application, as shown in FIGS. 2 and 4 , the busbar bracket 3 has a plurality of first positioning holes 33, each battery cell 1 has an electrode post 11, the electrode post 11 of the battery cell 1 is assembled into the corresponding first positioning hole 33, and the busbar 2 is located on one side of the busbar bracket 3 away from the battery cells 1 and is connected between the electrode posts 11 of the two battery cells 1.

[0028] Specifically, as shown in FIG. 2 , each battery cell 1 has an electrode post 11 with vertical end faces. The busbar bracket 3 has a plurality of first positioning holes 33, each of which matches the electrode post 11 of two adjacent battery cells 1. That is, each pair of adjacent electrode posts 11 is assembled within the same first positioning hole 33. Furthermore, a limiting surface is provided below each of the first positioning holes 33. The busbar 2 is fitted into the first positioning holes 33, with the side of the busbar 2 closest to the battery cell 1 abutting against the limiting surface, so that the busbar 2 is pre-assembled to the side of the busbar bracket 3 farther from the battery cell 1. After pre-assembly of the busbar 2 to the busbar bracket 3, the busbar 2 is welded to the two adjacent electrode posts 11. After the busbar 2 is welded to the electrode posts 11, the busbar bracket 3 is limited between the battery cell 1 and the busbar 2, thereby achieving a fixed installation of the busbar bracket 3.

[0029] In some embodiments of the present application, as shown in FIG. 2, the inner wall of the first positioning hole 33 abuts against the corresponding electrode post 11.

[0030] Specifically, each first positioning hole 33 corresponds to and matches the electrode posts 11 of two adjacent battery cells 1, and the inner walls of the first positioning holes 33 abut against the corresponding electrode posts 11, allowing the busbar bracket 3 to be positioned by the first positioning holes 33 and the battery cells 1, improving assembly efficiency between the busbars 2. At the same time, the inner walls of the first positioning holes 33 abut against the electrode posts 11, allowing the electrode posts 11 to provide support for the busbar bracket 3 in the vertical direction, facilitating the overall assembly of the busbar bracket 3, busbars 2, and battery cells 1.

[0031] In some embodiments of the present application, as shown in Figures 2 and 4, the bus bar bracket 3 further has a first positioning member 34, the bus bar 2 has a second positioning hole 21, and the first positioning member 34 is drilled into the second positioning hole 21.

[0032] Specifically, the busbar bracket 3 is further provided with a plurality of first positioning members 34, which are arranged to correspond to the limiting surfaces below the first positioning holes 33. If necessary, as shown in FIG. 4, two first positioning members 34 may be arranged on each limiting surface. The first positioning members 34 may be positioning pins, positioning posts, or positioning protrusions, but are not limited thereto. Each busbar 2 is correspondingly provided with a second positioning hole 21, and the number of second positioning holes 21 corresponds to the number of first positioning members 34 arranged on each limiting surface. As shown in FIG. 2, each busbar 2 is provided with two second positioning holes 21. When pre-assembling the busbars 2 and the busbar bracket 3, the first positioning members 34 are drilled into the second positioning holes 21, which enables quick positioning of the busbars 2 and the busbar bracket 3 and significantly improves the efficiency of pre-assembly of the busbars 2 and the busbar bracket 3.

[0033] In some embodiments of the present application, as shown in FIG. 4 , the busbar bracket 3 further includes a fifth mounting portion 35, which is used to abut against the corresponding busbar 2 to restrict the busbar 2 to the busbar bracket 3.

[0034] Specifically, the busbar bracket 3 is further provided with a plurality of fifth mounting portions 35, which are provided on both sides of the outer frame of the first positioning holes 33. If necessary, one fifth mounting portion 35 may be installed on each side of the outer frame of each first positioning hole 33, as shown in FIG. 4 . The fifth mounting portions 35 may be, but are not limited to, buckles. After positioning, the fifth mounting portions 35 engage the busbar 2 with the busbar bracket 3, thereby realizing a limit for the busbar 2. Next, the busbar 2 and the electrode post 11 of the battery cell 1 are welded together, and the busbar bracket 3 is fixedly attached to the battery cell 1.

[0035] In some embodiments of the present application, as shown in FIGS. 1 to 3 , the battery module 100 further includes a circuit board 5, which is fixed to the bus bar bracket 3. Specifically, components such as harnesses and sensors are arranged inside the battery module 100, and these components are usually arranged on the circuit board 5. Therefore, it is necessary to attach the circuit board 5 to the bus bar bracket 3 so as to obtain the operating status of the battery cells 1 inside the battery and improve the level of battery operation management.

[0036] In some embodiments of the present application, as shown in Figures 1, 2 and 4, the bus bar bracket 3 further has a second positioning member 36, the circuit board 5 has a third positioning hole 51, and the second positioning member 36 is drilled into the third positioning hole 51.

[0037] Specifically, as shown in FIG. 4 , the busbar bracket 3 is further provided with a plurality of second positioning members 36. The second positioning members 36 may be positioning pins, positioning posts, or positioning protrusions, and are not limited thereto. As shown in FIG. 1 , third positioning holes 51 are correspondingly provided on the circuit board 5, and the number of the third positioning holes 51 is the same as the number of the second positioning members 36. When assembling the circuit board 5 to the busbar bracket 3, the second positioning members 36 are drilled into the third positioning holes 51, thereby quickly positioning the circuit board 5 and the busbar bracket 3 and significantly improving the installation efficiency of the circuit board 5 and the busbar bracket 3.

[0038] In some embodiments of the present application, as shown in FIG. 4 , the bus bar bracket 3 further has a sixth mounting portion 37, which is used to abut against the circuit board 5 and thereby limit the circuit board 5 to the bus bar bracket 3.

[0039] Specifically, the bus bar bracket 3 is further provided with a plurality of sixth mounting portions 37, which may be, but are not limited to, buckles. The sixth mounting portions 37 engage the positioned circuit board 5 with the bus bar bracket 3, thereby limiting the circuit board 5 and thereby realizing fixed mounting of the circuit board 5, allowing components such as harnesses and sensors to be attached to the circuit board 5, and enabling real-time monitoring of data from the battery module 100.

[0040] In addition, the second positioning member 36 can be provided with a buckle structure, so that the second positioning member 36 can not only provide positioning for the circuit board 5 but also provide an engagement function, thereby further improving the reliability of the assembly of the circuit board 5.

[0041] A battery pack according to an embodiment of the second aspect of the present application includes a battery module 100 according to an embodiment of the first aspect.

[0042] The battery pack according to the embodiment of the present application is provided with the battery module 100, and the first mounting portion 31 and the second mounting portion 32 are respectively attached to the bus bar bracket 3, and the third mounting portion 41 and the fourth mounting portion 42 are respectively attached to the protective cover 4. The combined attachment of the first mounting portion 31 and the third mounting portion 41 and the combined attachment of the second mounting portion 32 and the fourth mounting portion 42 realizes fixed attachment of the protective cover 4 to the bus bar bracket 3, making the assembly process simple, convenient, and reliable.

[0043] A vehicle according to an embodiment of the third aspect of the present application includes a battery pack according to an embodiment of the second aspect.

[0044] The vehicle according to the embodiment of the present application is provided with the battery pack, and the first mounting portion 31 and the second mounting portion 32 are respectively attached to the bus bar bracket 3, and the third mounting portion 41 and the fourth mounting portion 42 are respectively attached to the protective cover 4. The combined attachment of the first mounting portion 31 and the third mounting portion 41 and the combined attachment of the second mounting portion 32 and the fourth mounting portion 42 enables the protective cover 4 and the bus bar bracket 3 to be fixedly attached, making the assembly process simple, convenient, and reliable.

[0045] In the description of this application, terms indicating directions and positional relationships, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," are based on the directions or positional relationships shown in the drawings and are intended merely to facilitate and simplify the description of this application, and do not indicate or imply that the referred device or element must have a specific direction, configuration, or operation in a specific direction, and cannot be considered to limit this application.

[0046] It should be noted that the terms "first" and "second" are for explanatory purposes only and cannot be considered to indicate or imply relative importance or the number of technical features. Therefore, a feature defined as "first" or "second" can expressly or imply that it includes one or more of the feature, and in the description of this application, the concept of "plurality" is two or more unless otherwise clearly and specifically limited.

[0047] In this application, unless otherwise clearly defined and limited, terms such as "attach," "connected to each other," "coupled," and "fixed" should be understood in a broad sense, and may mean, for example, fixedly connected, detachably connected or integrally connected, mechanically connected, electrically connected or in communication with each other, directly connected to each other, connected to each other via an intermediate medium, communicating the interiors of two elements with each other, or an interactive relationship between two elements. Those skilled in the art can understand the specific concepts of the above technical terms in this application according to specific circumstances.

[0048] Unless otherwise specified or limited, in this application, a first feature being "above" or "below" a second feature may include direct contact between the first and second features or indirect contact between the first and second features via an intermediate medium. Also, references to a first feature being "above," "above," and "on the upper surface" of a second feature include the first feature being directly above and diagonally above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. References to a first feature being "below," "below," and "on the lower surface" of a second feature include the first feature being directly below or diagonally below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0049] In the description herein, the reference terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean that the specific features, structures, materials, or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In the description herein, exemplary descriptions 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 an appropriate manner in one or more embodiments or examples. Furthermore, if there is no conflict between them, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described herein.

[0050] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is limited by the claims and their equivalents.

[0051] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application is based on and claims priority from a Chinese patent application bearing application number 202320196315.2 and filed on January 28, 2023, the entire contents of which are incorporated herein by reference. [Explanation of symbols]

[0052] 1 battery cell 2 busbars 3 Busbar bracket 4 Protective cover 5 Circuit Board 21 Second positioning hole 31 First mounting part 32 Second mounting part 34 first positioning member 35 Fifth mounting part 36 Second positioning member 37 Sixth Mounting Point 38 Support Platform 41 Third mounting part 42 Fourth mounting part 51 Third positioning hole 100 battery modules

Claims

1. A battery module, A plurality of battery cells; a bus bar and a bus bar bracket, the bus bar being used to electrically connect two of the battery cells and to limit the bus bar bracket to the battery cells, the bus bar bracket having a first mounting portion and a second mounting portion; a protective cover located on one side of the bus bar bracket farther from the battery cells, the protective cover having a third mounting portion and a fourth mounting portion, the first mounting portion and the second mounting portion being combined with the third mounting portion and the fourth mounting portion, respectively, to fix the protective cover to the bus bar bracket.

2. The battery module according to claim 1 , wherein one of the first mounting portion and the third mounting portion is a positioning groove and the other is a positioning boss, and the positioning boss is mounted in the positioning groove.

3. 2. The battery module according to claim 1, wherein one of the second mounting portion and the fourth mounting portion is a first mounting hole and the other is a first engagement portion, the first engagement portion being suitable for engaging with the first mounting hole.

4. 2. The battery module according to claim 1, wherein the first mounting portion, the second mounting portion, the third mounting portion, and the fourth mounting portion are all plural, the plural first mounting portions and the plural third mounting portions are in one-to-one correspondence, and the plural second mounting portions and the plural fourth mounting portions are in one-to-one correspondence.

5. 2. The battery module according to claim 1, wherein the bus bar bracket has a plurality of first positioning holes, each of the battery cells has an electrode post, the electrode post of the battery cell is assembled into the corresponding first positioning hole, and the bus bar is located on one side of the bus bar bracket away from the battery cells and is connected between the electrode posts of two of the battery cells.

6. The battery module according to claim 5 , wherein an inner wall of the first positioning hole abuts against the corresponding electrode post.

7. The battery module according to claim 5 , wherein the bus bar bracket further comprises a first positioning member, the bus bar has a second positioning hole, and the first positioning member is drilled into the second positioning hole.

8. 8. The battery module according to claim 5, wherein the bus bar bracket further includes a fifth mounting portion, the fifth mounting portion being used to abut against the corresponding bus bar to limit the bus bar to the bus bar bracket.

9. The battery module according to claim 1 , further comprising a circuit board fixed to the bus bar bracket.

10. The battery module according to claim 9 , wherein the bus bar bracket further includes a second positioning member, the circuit board includes a third positioning hole, and the second positioning member is drilled into the third positioning hole.

11. 10. The battery module according to claim 9, wherein the bus bar bracket further includes a sixth mounting portion, the sixth mounting portion being used to abut against the circuit board to limit the circuit board to the bus bar bracket.

12. A battery pack comprising the battery module according to claim 1.

13. A vehicle comprising the battery pack according to claim 12.

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