Battery module and vehicle

Abstract

The application discloses a battery module and a vehicle, and belongs to the technical field of batteries. The battery module comprises a single battery, an end plate, a control assembly and a first circuit board. The end plate is connected to one side of the single battery. The control assembly is arranged on the side of the end plate away from the single battery and is connected to the end plate. The first circuit board is connected to the single battery and the control assembly. The single battery, the end plate and the control assembly are arranged on the same side of the first circuit board. According to the application, the control assembly is connected to the end plate, so that the control assembly and the end plate form an integral whole, the connection between the control assembly and the first circuit board can be completed before the battery module is put into a box, and the connection difficulty is reduced.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to a battery module and a vehicle. Background Technology

[0002] The battery slave management unit is a component of the battery management system. It is connected to the battery via a flexible circuit board and can connect to individual cells to monitor their operating status, thereby ensuring the safe operation of the battery module or battery pack.

[0003] However, the unreasonable location of the battery slave management unit within the battery pack makes it difficult to connect the battery module and the battery slave management unit. Utility Model Content

[0004] The purpose of this utility model is to provide a battery module to solve the technical problem of difficulty in connecting the battery module and the battery slave management unit; another purpose of this application is to provide a battery pack.

[0005] Technical solution: This application provides a battery module, including:

[0006] Single cell battery;

[0007] An end plate, which is connected to one side of the individual battery cell;

[0008] A control component is disposed on the side of the end plate opposite to the single battery cell and is connected to the end plate;

[0009] A first circuit board is connected to the individual battery and the control component, and the individual battery, the end plate and the control component are disposed on the same side of the first circuit board.

[0010] In some embodiments, the control component includes:

[0011] The housing is connected to the side of the end plate opposite to the single battery cell. The housing has a receiving cavity and a connecting through hole. The connecting through hole is located on the side of the housing facing the first circuit board and communicates with the receiving cavity. The first circuit board passes through the connecting through hole.

[0012] A second circuit board is disposed in the receiving cavity and connected to the housing, and the first circuit board is connected to the second circuit board.

[0013] In some embodiments, the housing includes:

[0014] A bracket, which is connected to the end plate;

[0015] A cover plate, which is detachably connected to the bracket and surrounds the receiving cavity;

[0016] The second circuit board is connected to one of the bracket and the cover plate. The bracket has a first hole wall on the side facing the bracket, and the cover plate has a second hole wall on the side facing the bracket. The first hole wall and the second hole wall surround the connecting through hole.

[0017] In some embodiments, the housing includes:

[0018] The body has the receiving cavity, and the second circuit board is connected to the body;

[0019] The clearance portion is connected to the side of the housing away from the end plate. The clearance portion is spaced apart from the second circuit board. The clearance portion and the body surround the connecting through hole.

[0020] In some embodiments, the control component further includes a first connection portion connected to a side of the housing facing or away from the first circuit board, and the first connection portion is connected to the end plate.

[0021] In some embodiments, the end plate has a plurality of second connecting portions disposed on the side of the end plate opposite to the single battery cell; wherein the number of second connecting portions is greater than the number of first connecting portions, and the first connecting portions are connected to a portion of the plurality of second connecting portions.

[0022] In some embodiments, the control component further includes a third connecting portion connected to the side of the housing opposite to the first circuit board. The third connecting portion is spaced apart from the end plate to form a mounting gap. The third connecting portion has a mounting through hole that communicates with the mounting gap.

[0023] In some embodiments, the control component includes a plurality of first connecting portions, at least a portion of which is connected to the side of the housing opposite to the first circuit board, and the third connecting portion is connected to the first connecting portions.

[0024] In some embodiments, the second circuit board passes through the connection via, and a portion of the second circuit board is exposed in the connection via.

[0025] Accordingly, this application also provides a vehicle including a battery module as described in any of the above embodiments.

[0026] Beneficial Effects: Compared with the prior art, the battery module provided in this application includes a single battery cell, an end plate, a control component, and a first circuit board. The end plate is connected to one side of the single battery cell. The control component is disposed on the side of the end plate opposite to the single battery cell and connected to the end plate. The first circuit board connects the single battery cell and the control component, and the single battery cell, end plate, and control component are disposed on the same side of the first circuit board. By connecting the control component to the end plate, this application enables the control component and the end plate to form a whole, allowing the connection between the control component and the first circuit board to be completed before entering the battery pack, reducing the connection difficulty. Simultaneously, the control component can be placed inside the battery pack as part of the battery module, allowing the battery module's built-in control component to be used directly during battery pack testing without the need for external control components, reducing testing steps. Furthermore, by connecting the control component to the side of the end plate opposite to the single battery cell, this application allows the first circuit board connecting the single battery cell and the control component to be located on one side of the end plate, increasing the distance between the control component and the single battery cell. This results in a larger radius and smaller curvature of the bent portion of the first circuit board, making the first circuit board less prone to damage and improving the reliability of the battery module. Attached Figure Description

[0027] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the battery module provided in an embodiment of this application;

[0029] Figure 2 A top view of the battery module provided in the embodiments of this application;

[0030] Figure 3 This is a front view of the battery module provided in an embodiment of this application;

[0031] Figure 4 for Figure 3 Detailed view of point B in the middle circle;

[0032] Figure 5 This is a structural schematic diagram of the battery module provided in an embodiment of this application from another angle;

[0033] Figure 6 for Figure 5 Detailed view of point C in the middle circle;

[0034] Figure 7 This is a schematic diagram of the structure of a battery module provided in the embodiments of this application when in use.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100 - Single cell; 200 - End plate; 210 - Second connection part; 300 - Control component; 310 - Housing; 311 - Receiving cavity; 312 - Connection through hole; 314 - Bracket; 315 - First hole wall; 316 - Cover plate; 317 - Second hole wall; 318 - Body; 319 - Clearance part; 320 - Clearance space; 330 - Second circuit board; 340 - First connection part; 350 - Third connection part; 351 - Mounting gap; 352 - Mounting through hole; 400 - First circuit board. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" 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, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0039] The following disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure of this application, the components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit this application.

[0040] The Battery Slave Management Unit (BSU) is a component of the Battery Management System (BMS). The Battery Slave Management Unit is connected to the battery via a flexible circuit board. It can connect to the individual battery cell 100 and monitor the working status of the individual battery cell 100 to ensure the safe operation of the battery module or battery pack.

[0041] However, the unreasonable location of the battery slave management unit makes it difficult to connect the battery module and the battery slave management unit.

[0042] To address the aforementioned technical problem of difficulty in connecting the battery module to the battery slave management unit, the first embodiment of this application provides a battery module. Please refer to... Figure 1 The battery module includes a single battery cell 100, an end plate 200, a control component 300, and a first circuit board 400. The end plate 200 is connected to one side of the single battery cell 100. The control component 300 is disposed on the side of the end plate 200 away from the single battery cell 100 and is connected to the end plate 200. The first circuit board 400 connects the single battery cell 100 and the control component 300, and the single battery cell 100, the end plate 200, and the control component 300 are disposed on the same side of the first circuit board 400.

[0043] In some embodiments, the control component 300 is a slave control management unit.

[0044] In some embodiments, the first circuit board 400 is a flexible circuit board; in some embodiments, the flexible circuit board is connected to a plurality of individual batteries 100 via a busbar, and the flexible circuit board is connected to a control component 300 via a connector.

[0045] Firstly, in the above embodiments, by fixing the control component 300 to the end plate 200, the connection between the control component 300 and the first circuit board 400 can be completed before the battery module is placed into the box, without having to make the connection in the small space of the box after the battery module is placed into the box, thus reducing the difficulty of connecting the control component 300 and the first circuit board 400.

[0046] Secondly, in the above embodiments, the control component 300 is directly fixedly connected to the end plate 200 and connected to the single battery 100 through the first circuit board 400. This is equivalent to directly integrating the control component 300 into the battery module. When the battery module is undergoing offline testing, the control component 300 built into the battery module can be used directly during the testing process without the need for an external control component 300 specifically for testing. This reduces the steps of connecting and disconnecting the control component 300 specifically for testing and simplifies the testing process.

[0047] In addition, improper placement of the battery control management unit can lead to large curvature at the bends of the flexible circuit board, making it prone to failure.

[0048] In the above embodiments, the control component 300 is disposed on the side of the end plate 200 away from the single battery 100, which can increase the distance between the control component 300 and the single battery 100. When the single battery 100, the end plate 200 and the control component 300 are all located on the same side of the first circuit board 400, the first circuit board 400 needs to bypass the end plate 200 in order to connect the single battery 100 and the control component 300. Since the distance between the control component 300 and the single battery 100 is large, the radius of the bend of the first circuit board 400 to bypass the end plate 200 is also large and the curvature is small. The first circuit board 400 is less prone to failure, and the reliability of the first circuit board 400 and the battery module is better.

[0049] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 4 The control component 300 includes a housing 310 and a second circuit board 330. The housing 310 is connected to the side of the end plate 200 away from the single cell 100. The housing 310 has a receiving cavity 311 and a connecting through hole 312. The connecting through hole 312 is located on the side of the housing 310 facing the first circuit board 400 and communicates with the receiving cavity 311. The first circuit board 400 passes through the connecting through hole 312. The second circuit board 330 is located in the receiving cavity 311 and connected to the housing 310. The first circuit board 400 is connected to the second circuit board 330.

[0050] In some embodiments, the second circuit board 330 is a slave control management unit circuit board.

[0051] In some embodiments, the second circuit board 330 is exposed in the connection through hole 312, meaning that the second circuit board 330 is visible from outside the receiving cavity 311 when viewed through the connection through hole 312, so as to facilitate the connection between the first circuit board 400 and the second circuit board 330; furthermore, from outside the receiving cavity 311 along the extending direction of the connection through hole 312, that is, in Figure 2 In the middle, looking at the connection through hole 312 in a direction perpendicular to the screen or paper, the second circuit board 330 can be seen, which further reduces the difficulty of connecting the first circuit board 400 and the second circuit board 330.

[0052] Firstly, in the above embodiments, by providing the connection through hole 312 on the side of the housing 310 facing the first circuit board 400, the first circuit board 400 can be connected to the control component 300 with a small bending angle, and the length of the first circuit board 400 can be reduced, further reducing the possibility of damage to the first circuit board 400 and improving the reliability of the first circuit board 400 and the battery module.

[0053] Secondly, the slave control management unit circuit board, which passes through the connection through hole 312, can shorten the distance that the first circuit board 400 extends into the housing 310, reducing the difficulty for operators to connect the first circuit board 400 and the control component 300. At the same time, it also allows for a shorter length of the first circuit board 400, thereby further reducing the possibility of damage to the first circuit board 400 and improving the reliability of the first circuit board 400 and the battery module.

[0054] In some embodiments, a male connector is connected to the side of the first circuit board 400 away from the single battery 100, and a female connector is provided on the second circuit board 330. The male connector is inserted into the female connector, and the female connector passes through the connection through hole 312. This can reduce the distance between the male connector and the first circuit board 400 extending into the housing 310. In some cases, the first circuit board 400 can be connected to the second circuit board 330 without extending into the housing 310, thereby reducing the difficulty of connecting the first circuit board 400 and the control component 300.

[0055] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 4 The housing 310 includes a bracket 314 and a cover plate 316. The bracket 314 is connected to the end plate 200. The cover plate 316 is detachably connected to the bracket 314 and forms a receiving cavity 311. The second circuit board 330 is connected to one of the bracket 314 and the cover plate 316. The side of the bracket 314 facing the bracket 314 has a first hole wall 315, and the side of the cover plate 316 facing the bracket 314 has a second hole wall 317. The first hole wall 315 and the second hole wall 317 form a connecting through hole 312.

[0056] In some embodiments, the cover plate 316 and the bracket 314 are connected by a snap-fit, which further reduces the difficulty of installing and disassembling the cover plate 316 and the bracket 314.

[0057] In some embodiments, the cover plate 316 has a first receiving groove with an opening facing the bracket 314, and the bracket 314 can be connected to the cover plate 316 and cover the first receiving groove to form a receiving cavity 311; in some embodiments, the bracket 314 has a second receiving groove with an opening facing the cover plate 316, and the cover plate 316 can be connected to the bracket 314 and cover the second receiving groove to form a receiving cavity 311; in some embodiments, the cover plate 316 has a first receiving groove with an opening facing the bracket 314, and the bracket 314 has a second receiving groove with an opening facing the cover plate 316, and the cover plate 316 can be connected to the bracket 314 so that the first receiving groove and the second receiving groove communicate to form a receiving cavity 311.

[0058] In some embodiments, the second circuit board 330 is connected to one of the bracket 314 and the cover plate 316, and is spaced apart from the other to prevent the other from compressing the second circuit board 330. Specifically, please refer to Figure 4 In some embodiments, the second circuit board 330 is connected to the bracket 314 and spaced apart from the cover plate 316.

[0059] In the above embodiments, by providing a first hole wall 315 and a second hole wall 317 that can form a connecting through hole 312 on the bracket 314 and the cover plate 316 respectively, the connecting through hole 312 can be opened after the bracket 314 and the cover plate 316 are separated. When installing or removing the second circuit board 330, the second circuit board 330 can be installed or removed simply by translating the second circuit board 330 along the direction from the single cell 100 to the end plate 200 or the direction from the end plate 200 to the single cell 100, without having to move the second circuit board 330 along the extension direction of the connecting through hole 312 first, thus reducing the difficulty of assembling and disassembling the second circuit board 330.

[0060] In some embodiments, please refer to Figure 4 and Figure 5 The housing 310 includes a body 318 and a clearance portion 319. The body 318 has a receiving cavity 311, and the second circuit board 330 is connected to the body 318. The clearance portion 319 is connected to the side of the housing 310 away from the end plate 200. The clearance portion 319 and the second circuit board 330 are spaced apart, and the clearance portion 319 and the body 318 surround each other to form a connecting through hole 312.

[0061] In some embodiments, please refer to Figure 4 The clearance portion 319 has a clearance space 320 on the side facing the end plate 200, and the clearance space 320 allows the clearance portion 319 to be spaced apart from the second circuit board 330.

[0062] In some embodiments, the clearance portion 319 is connected to the side of the cover plate 316 away from the end plate 200.

[0063] Understandably, the second circuit board 330 is thicker at the connection point with the first circuit board 400. Specifically, the second circuit board 330 is thicker at the female connector.

[0064] In the above embodiment, by providing a clearance portion 319 and enabling the clearance portion 319 to form a connecting through hole 312 with the body 318, the clearance portion 319 can be located at the connection between the second circuit board 330 and the first circuit board 400. While the clearance space 320 of the clearance portion 319 avoids the connection between the second circuit board 330 and the first circuit board 400, the thickness of the body 318 can be smaller, thereby reducing the space occupied by the battery module.

[0065] In some embodiments, the female connector of the second circuit board 330 passes through the connection through hole 312, and the clearance portion 319 is spaced apart from the female connector.

[0066] In some embodiments, please refer to Figure 5 and Figure 7 The control component 300 also includes a first connection part 340, which is connected to the side of the housing 310 facing or away from the first circuit board 400, and is connected to the end plate 200.

[0067] In some embodiments, the control component 300 includes a plurality of spaced-apart first connecting portions 340.

[0068] In some embodiments, the first connecting portion 340 has a first mounting hole, the end plate 200 has a second mounting hole, and the battery module further includes a connector that passes through the first mounting hole and the second mounting hole and is connected to the end plate 200 to connect the first connecting portion 340 and the end plate 200.

[0069] In the above embodiments, the first connecting portion 340 is disposed on the side of the housing 310 facing or away from the first circuit board 400, which allows the second circuit board 330 to have a larger size along the length direction of the single cell 100, thereby facilitating the design of the second circuit board 330.

[0070] Meanwhile, in some embodiments, at least one first connecting portion 340 is disposed on the side of the housing 310 facing the first circuit board 400. It is understood that, in order to further increase the radius of the first circuit board 400 at the bend, thereby reducing the curvature of the first circuit board 400 at the bend, the distance between the plane containing the surface of the end plate 200 facing the first circuit board 400 and the surface of the housing 310 facing the first circuit board 400 is increased, thereby forming an installation space on the side of the housing 310 facing the first circuit board 400. In the above embodiments, disposing the first connecting portion 340 on the side of the housing 310 facing the first circuit board 400 allows the first connecting portion 340 to be disposed within an existing installation space. This allows the control component 300 to maximize the dimensions of the housing 310 and the second circuit board 330 in the length and height directions of the single battery 100, while still providing the first connecting portion 340. This allows the second circuit board 330 to have a larger area, facilitating its design and manufacturing.

[0071] In some embodiments, please refer to Figure 7The end plate 200 has a plurality of second connecting portions 210, which are disposed on the side of the end plate 200 away from the single cell 100; wherein, the number of second connecting portions 210 is greater than the number of first connecting portions 340, and the first connecting portions 340 are connected to a portion of the plurality of second connecting portions 210.

[0072] In some embodiments, the second connecting portion 210 is the aforementioned second mounting hole, and a connector can pass through the first connecting portion 340 and the second connecting portion 210 to connect the control assembly 300 and the end plate 200. Specifically, in some embodiments, the second connecting portion 210 is a threaded hole, and the connector is a bolt, which passes through the first connecting portion 340 and is threadedly connected to the end plate 200.

[0073] It is understood that, in some embodiments, please refer to Figure 7 The battery pack contains at least two types of battery modules, and different types of battery modules require different types of control components 300. In the above embodiment, the number of second connecting parts 210 is greater than the number of first connecting parts 340, which allows control components 300 of different types to distinguish the number or position of the first connecting parts 340.

[0074] Specifically, in some embodiments, the battery pack includes a first battery module and a second battery module. The first battery module includes a first control component 300, and the second battery module includes a second control component 300. In some embodiments, the number of first connecting portions 340 in the first control component 300 is greater than the number of second connecting portions 210 in the second control component 300, thereby facilitating the operator's visual differentiation between the first control component 300 and the second control component 300, reducing the assembly difficulty of the battery module and the battery pack. In some embodiments, please refer to... Figure 7 The first control component 300 includes only one first connection part 340 on the side facing the first circuit board 400, and the first connection part 340 is located on the left side of the first circuit board 400. The first control component 300 also includes only one first connection part 340 on the side facing the first circuit board 400, and the first connection part 340 is located on the right side of the first circuit board 400. The position of the first connection part 340 in the first control component 300 is different from the position of the first connection part 340 in the second control component 300. This makes it easier for operators to distinguish the first control component 300 and the second control component 300 from their appearance, reducing the assembly difficulty of the battery module and battery pack.

[0075] In some embodiments, please refer to Figure 6The control component 300 also includes a third connecting part 350, which is connected to the side of the housing 310 away from the first circuit board 400. The third connecting part 350 is spaced apart from the end plate 200 and forms a mounting gap 351. The third connecting part 350 has a mounting through hole 352, which communicates with the mounting gap 351.

[0076] In the above embodiment, by providing a third connecting part 350 and a mounting through hole 352 communicating with the mounting gap 351 in the third connecting part 350, it is convenient to pass through parts such as straps and clamps for fixing the wire harness, which facilitates the wiring and cable arrangement in the battery pack.

[0077] In some embodiments, the housing 310 has a fixing hole on the side opposite to the end plate 200 that communicates with the receiving cavity 311, so as to facilitate the insertion of straps, clamps and other parts for fixing wire harnesses, and to facilitate the wiring and cable arrangement in the battery pack.

[0078] In some embodiments, please refer to Figure 6 The control component 300 includes a plurality of first connection portions 340, at least a portion of which is connected to the side of the housing 310 away from the first circuit board 400, and a third connection portion 350 is connected to the first connection portions 340.

[0079] In the above embodiment, connecting the third connecting portion 350, which is spaced apart from the end plate 200, to the first connecting portion 340 can increase the mechanical properties of the third connecting portion 350, reduce the possibility of breakage failure at the connection between the third connecting portion 350 and the housing 310, and improve the reliability of the third connecting portion 350.

[0080] In some embodiments, the control component 300 further includes reinforcing ribs connected to the side of the housing 310 away from the first circuit board 400 and connected to the side of the third connecting portion 350 near the end plate 200; in some embodiments, the control component 300 further includes reinforcing ribs connected to the side of the housing 310 away from the first circuit board 400 and connected to the side of the third connecting portion 350 away from the end plate 200; in some embodiments, the control component 300 further includes multiple reinforcing ribs connected to the side of the housing 310 away from the first circuit board 400, at least one of the multiple reinforcing ribs connected to the side of the third connecting portion 350 away from the end plate 200, and at least one of the multiple reinforcing ribs connected to the side of the third connecting portion 350 near the end plate 200, to improve the mechanical properties of the third connecting portion 350.

[0081] In some embodiments, please refer to Figure 4 The second circuit board 330 passes through the connection through hole 312, and a portion of the second circuit board 330 is exposed in the connection through hole 312.

[0082] Specifically, a portion of the second circuit board 330 is exposed in the connection through hole 312, that is, a portion of the second circuit board 330 extends from the connection through hole 312 in a direction away from the receiving cavity 311 and is outside the receiving cavity 311 and the connection through hole 312.

[0083] In the above embodiment, by exposing a portion of the second circuit board 330 in the connecting through hole 312, the first circuit board 400 can be connected to the second circuit board 330 without extending into the connecting through hole 312, reducing the difficulty of connecting the first circuit board 400 and the second circuit board 330. Simultaneously, the portion of the second circuit board 330 exposed outside the connecting through hole 312 can provide a certain guiding effect on the first circuit board 400, further reducing the difficulty of connecting the first circuit board 400 and the second circuit board 330.

[0084] Accordingly, this application also provides a vehicle including a battery module as described in any of the above embodiments.

[0085] The battery module and battery pack provided in the embodiments of this application have been described in detail above. Specific examples have been used in this application to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery module, characterized in that, include: Single cell (100); End plate (200), said end plate (200) is connected to one side of said single cell (100); A control component (300) is disposed on the side of the end plate (200) opposite to the single cell (100) and connected to the end plate (200); A first circuit board (400) is connected to the single battery cell (100) and the control component (300). The single battery cell (100), the end plate (200), and the control component (300) are disposed on the same side of the first circuit board (400).

2. The battery module according to claim 1, characterized in that, The control component (300) includes: A housing (310) is connected to the end plate (200) on the side away from the single battery (100). The housing (310) has a receiving cavity (311) and a connecting through hole (312). The connecting through hole (312) is located on the side of the housing (310) facing the first circuit board (400). The connecting through hole (312) communicates with the receiving cavity (311). The first circuit board (400) passes through the connecting through hole (312). The second circuit board (330) is disposed in the receiving cavity (311) and connected to the housing (310), and the first circuit board (400) is connected to the second circuit board (330).

3. The battery module according to claim 2, characterized in that, The housing (310) includes: A bracket (314) is connected to the end plate (200); A cover plate (316) is detachably connected to the bracket (314) and surrounds the receiving cavity (311); The second circuit board (330) is connected to one of the bracket (314) and the cover plate (316). The bracket (314) has a first hole wall (315) on the side facing the bracket (314), and the cover plate (316) has a second hole wall (317) on the side facing the bracket (314). The first hole wall (315) and the second hole wall (317) surround and form the connecting through hole (312).

4. The battery module according to claim 2, characterized in that, The housing (310) includes: The body (318) has the receiving cavity (311), and the second circuit board (330) is connected to the body (318); A clearance portion (319) is connected to the side of the housing (310) away from the end plate (200). The clearance portion (319) is spaced apart from the second circuit board (330). The clearance portion (319) and the body (318) surround each other to form the connecting through hole (312).

5. The battery module according to claim 2, characterized in that, The control component (300) further includes a first connecting part (340), which is connected to the side of the housing (310) facing or away from the first circuit board (400) and is connected to the end plate (200).

6. The battery module according to claim 5, characterized in that, The end plate (200) has a plurality of second connecting portions (210), the second connecting portions (210) being disposed on the side of the end plate (200) away from the single cell (100); wherein the number of second connecting portions (210) is greater than the number of first connecting portions (340), and the first connecting portions (340) are connected to a portion of the plurality of second connecting portions (210).

7. The battery module according to claim 5, characterized in that, The control component (300) further includes a third connecting part (350), which is connected to the side of the housing (310) away from the first circuit board (400). The third connecting part (350) is spaced apart from the end plate (200) and forms a mounting gap (351). The third connecting part (350) has a mounting through hole (352) that communicates with the mounting gap (351).

8. The battery module according to claim 7, characterized in that, The control component (300) includes a plurality of first connecting parts (340), at least a portion of which is connected to the side of the housing (310) away from the first circuit board (400), and the third connecting part (350) is connected to the first connecting part (340).

9. The battery module according to claim 2, characterized in that, The second circuit board (330) passes through the connection through hole (312), and a portion of the second circuit board (330) is exposed in the connection through hole (312).

10. A vehicle, characterized in that, Includes the battery module as described in any one of claims 1 to 9.

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