Battery module and battery pack

Abstract

The utility model discloses a battery module and a battery pack. The battery module comprises a battery cell assembly, a battery protection plate, an end plate and a signal plug connector. Wherein the battery cell assembly comprises a plurality of battery cells, and the plurality of battery cells are sequentially arranged along the length direction of the battery module; the battery protection plate covers the top of the battery cell assembly, the battery protection plate is provided with a signal acquisition piece and a flexible circuit board, and the signal acquisition piece is electrically connected with the flexible circuit board; the end plates are arranged at two ends of the cell assembly in the length direction; the signal plug connector is arranged on the top surface of the end plate, and the signal plug connector is electrically connected with the signal acquisition piece through the flexible circuit board. The signal plug connector can solve the problem that when a signal plug connector in the prior art is arranged on a flexible circuit board, the flexible circuit board is prone to deformation.

Description

Technical Field

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

[0002] Energy storage devices are finding increasingly widespread application. As a key component in these devices, battery packs consist of multiple battery modules, which in turn consist of multiple cells. These cells are the core components of the entire battery energy storage system, and accurate data collection of cell voltage, temperature, and other parameters plays a crucial role in the safe operation of the entire system.

[0003] Currently, battery modules typically use wiring harnesses to collect and transmit signals such as voltage and temperature. These signals are then transmitted to a battery management system (BMS) connected to the wiring harness via signal connectors. In existing battery modules, the signal connectors are typically integrated onto the module's flexible printed circuit board (FPCB). However, when connecting the wiring harness of a BMS or other structure to the signal connector, significant force is required to achieve the connection. Due to the FPCB's relatively soft material, this process can easily cause deformation, damaging the connection between the FPCB and the battery cell, ultimately leading to breakage of the FPCB and failure of signal sampling. Utility Model Content

[0004] The main purpose of the present application is to provide a battery module and a battery pack to solve the problem in the prior art that when a signal connector is set on a flexible circuit board, the flexible circuit board is easily deformed.

[0005] According to one aspect of the present application, a battery module is provided, comprising:

[0006] A battery cell assembly, wherein the battery cell assembly includes a plurality of battery cells, and the plurality of battery cells are arranged in sequence along the length direction of the battery module;

[0007] A battery protection board, the battery protection board cover is arranged on the top of the battery core assembly, the battery protection board is provided with a signal acquisition component and a flexible circuit board, the signal acquisition component and the flexible circuit board are electrically connected;

[0008] End plates, the end plates being arranged at both ends of the battery core assembly in the length direction;

[0009] A signal connector is provided on the top surface of one of the two end plates, and the signal connector is electrically connected to the signal collecting component through the flexible circuit board.

[0010] Furthermore, a drainage groove is provided on the top surface of the end plate, and the drainage groove extends along the length direction of the battery module.

[0011] Furthermore, the drainage groove has a first drainage end close to the battery cell assembly and a second drainage end away from the battery cell assembly. Along the direction from the first drainage end to the second drainage end, the drainage groove is inclined toward the bottom surface of the battery module.

[0012] Furthermore, the drainage groove includes one or more drainage grooves. When there are multiple drainage grooves, the multiple drainage grooves are spaced apart on the top surface of the end plate along the width direction of the battery module, and at least one drainage groove is located at the bottom of the signal connector.

[0013] Furthermore, a drainage groove and a first stop portion are provided on the top surface of the end plate. The first stop portion includes two, the drainage groove is provided between the two first stop portions, and each first stop portion is protruded from the top surface of the end plate.

[0014] Furthermore, a second stop portion is provided on a side of the top surface of the end plate close to the battery core assembly, and the signal connector is located on a side of the second stop portion facing away from the battery core assembly.

[0015] Furthermore, a first stopper and a hoisting hole are provided on the top surface of the end plate. There are two hoisting holes, the first stopper is located between the two hoisting holes, and each of the hoisting holes extends along the height direction of the battery module.

[0016] Furthermore, along the height direction of the battery module, the top of the end plate is lower than the bottom of the battery protection plate;

[0017] The flexible circuit board includes a flexible board body and an extension portion, the flexible board body is arranged on the battery protection board, the extension portion is connected to the flexible board body and extends from the battery protection board to the top surface of the end plate, and the signal connector is arranged on the extension portion.

[0018] Furthermore, the extension portion includes a first bending section and a second bending section, the first bending section is connected to the flexible board body and extends along the height direction of the battery module, the second bending section is connected to the first bending section and extends along the length direction of the battery module, and the signal connector is arranged in the second bending section.

[0019] On the other hand, the present application also provides a battery pack, which includes the above-mentioned battery module.

[0020] In the present application, the battery cell assembly includes a plurality of battery cells. When the battery module is actually processed, the plurality of battery cells can be arranged in sequence along the length direction of the battery module, and end plates are provided at both ends of the battery cell assembly along the length direction, and a battery protection cover is provided on the top of the battery cell assembly, and then the signal connector is installed on the top surface of the end plate, and the signal connector is electrically connected to the signal acquisition component through a flexible circuit board. In the above processing process, since the signal connector in the present application is provided on the top surface of the end plate instead of on the flexible circuit board, when the wiring harness of a structure such as a battery management system is connected to the signal connector, the flexible circuit board on the battery protection board will not be affected by the external force applied to the signal connector and the connection force between the signal connector and the wiring harness, effectively preventing the deformation of the flexible circuit board, thereby ensuring the normal operation of the flexible circuit board, and further realizing the collection and transmission of signals such as the voltage and temperature of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 A schematic structural diagram of a battery module disclosed in an embodiment of the present application;

[0023] Figure 2 The attached embodiment disclosed in this application Figure 1 Enlarged view of area A in the middle;

[0024] Figure 3 This is a front view of the battery module disclosed in the embodiment of the present application;

[0025] Figure 4 This is a schematic structural diagram of the end plate disclosed in the embodiment of this application;

[0026] Figure 5 The attached embodiment disclosed in this application Figure 4 Enlarged view of area B in the middle;

[0027] Figure 6 This is a top view of the end plate disclosed in an embodiment of the present application.

[0028] The above drawings include the following reference numerals:

[0029] 10. Battery cell assembly; 11. Battery cell; 20. Battery protection board; 21. Signal acquisition component; 22. Flexible circuit board; 221. Flexible board body; 222. Extension portion; 2221. First bending section; 2222. Second bending section; 30. End plate; 31. Drain trough; 311. First drainage end; 312. Second drainage end; 32. First stop portion; 33. Second stop portion; 34. Lifting hole; 40. Signal connector; 50. Locking piece. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary, not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0033] As mentioned in the background art, in existing battery modules, signal connectors are usually designed onto the flexible circuit board of the battery module, and the signal connectors are connected via a wiring harness on the flexible circuit board to transmit signals such as voltage and temperature collected by the wiring harness. However, when it is necessary to connect the wiring harness of a structure such as a battery management system to the signal connector, a large force must be applied to achieve the connection between the wiring harness and the signal connector. During this process, due to the relatively soft material of the flexible circuit board, the flexible circuit board is easily deformed, thereby destroying the connection structure between the flexible circuit board and the battery cell, and ultimately causing the flexible circuit board to break and signal sampling to fail. To this end, the inventors of the present application have designed a new type of battery module that can solve the problem in the prior art that when the signal connector is set on the flexible circuit board, the flexible circuit board is easily deformed. The battery module of the present application will be described in detail below with reference to the accompanying drawings.

[0034] It should be noted that the “length direction of the battery module” in this application is the length direction of the battery module. Figure 1 The direction indicated by the letter X in the figure is the width direction of the battery module. Figure 1 The direction indicated by the letter Y in the figure is the height direction of the battery module. Figure 1 The direction indicated by the letter Z.

[0035] See also Figures 1 to 6 As shown, according to an embodiment of the present application, a battery module is provided, which includes a battery cell assembly 10, a battery protection board 20, an end plate 30 and a signal connector 40.

[0036] The battery cell assembly 10 includes a plurality of battery cells 11, which are arranged in sequence along the length of the battery module. A battery protection plate 20 is provided on top of the battery cell assembly 10. The battery protection plate 20 is provided with a signal acquisition component 21 and a flexible circuit board 22, and the signal acquisition component 21 and the flexible circuit board 22 are electrically connected. End plates 30 are provided at both ends of the battery cell assembly 10 in the length direction. A signal connector 40 is provided on the top surface of one of the two end plates 30, and the signal connector 40 is electrically connected to the signal acquisition component 21 via the flexible circuit board 22. It can be understood that the signal acquisition component 21 in this embodiment is used to collect signals such as the voltage and temperature of each battery cell 11.

[0037] In this embodiment, the battery cell assembly 10 includes a plurality of battery cells 11. During the actual manufacturing of this battery module, the plurality of battery cells 11 can be arranged sequentially along the length of the battery module. End plates 30 are provided at both ends of the battery cell assembly 10 along the length direction, and a battery protection cover is provided on the top of the battery cell assembly 10. A signal connector 40 is then mounted on the top surface of the end plates 30 and electrically connected to the signal acquisition component 21 via the flexible circuit board 22. During this manufacturing process, because the signal connector 40 in this embodiment is disposed on the top surface of the end plates 30 rather than on the flexible circuit board 22, when the wiring harness of a structure such as a battery management system is connected to the signal connector 40, the flexible circuit board 22 on the battery protection board 20 is not affected by external forces applied to the signal connector 40 or the connection forces between the signal connector 40 and the wiring harness. This effectively prevents deformation of the flexible circuit board 22, thereby ensuring the normal operation of the flexible circuit board 22 and enabling the acquisition and transmission of signals such as voltage and temperature of the battery module.

[0038] At the same time, because the signal connector 40 is mounted on the end plate 30 in this embodiment, the wiring harness connected to the signal connector 40 can be located outside the battery module. This reduces the space occupied by the signal connector 40 and the wiring harness on the battery protection board 20, thereby improving the space utilization within the battery module. In addition, the signal acquisition component 21 on the battery protection board 20 in this embodiment can transmit signals such as the temperature and voltage of each battery cell 11 to the signal connector 40, which is then connected to a sampling device (such as a battery management system) through the signal connector 40 to collect signals such as the voltage and temperature of the battery module.

[0039] It can be understood that the “signal acquisition component 21 ” in this embodiment includes a temperature sensor, a voltage detector, and the like.

[0040] Further, see Figures 3 to 6 As shown, in this embodiment, the top surface of the end plate 30 is provided with a drainage groove 31, which extends along the length of the battery module. This arrangement allows condensed water on the end plate 30 to flow away from the end plate 30 along the drainage groove 31 without causing liquid accumulation on the end plate 30, thereby preventing the condensed water from adversely affecting the insulation and voltage resistance of the signal connector 40.

[0041] Specifically, because the signal connector 40 in this embodiment generates heat during use, when the temperature of the external environment is lower than the temperature of the heat generated by the signal connector 40, water vapor near the signal connector 40 will condense and form condensed water on the top surface of the end plate 30. If this condensed water is not promptly processed, the insulation and voltage resistance of the signal connector 40 will be reduced. To this end, in this embodiment, a drainage groove 31 is provided on the top surface of the end plate 30, so that the condensed water formed on the top surface of the end plate 30 can be discharged along the drainage groove 31, preventing the condensed water from accumulating on the top surface of the end plate 30, thereby preventing the condensed water from adversely affecting the insulation and voltage resistance of the signal connector 40.

[0042] Furthermore, in order to facilitate the condensed water to flow out along the drain groove 31 to leave the end plate 30, see Figure 5 As shown, the drainage groove 31 in this embodiment has a first drainage end 311 near the battery cell assembly 10 and a second drainage end 312 away from the battery cell assembly 10. Along the direction from the first drainage end 311 to the second drainage end 312, the drainage groove 31 is inclined toward the bottom surface of the battery module. That is, the drainage groove 31 in this embodiment is arranged on a slope. This facilitates the flow of condensed water from the first drainage end 311 of the drainage groove 31 near the battery cell assembly 10 toward the second drainage end 312 of the drainage groove 31 away from the battery cell assembly 10. As a result, any condensed water accumulated on the top of the end plate 30 can flow out of the end plate 30 smoothly, effectively preventing the condensed water from adversely affecting the insulation and voltage resistance performance of the signal connector 40.

[0043] Further, see Figures 3 and 4 As shown, the drainage groove 31 in this embodiment includes one or more drainage grooves 31. When there are multiple drainage grooves 31, the multiple drainage grooves 31 are spaced apart along the width direction of the battery module on the top surface of the end plate 30, and at least one drainage groove 31 is located at the bottom of the signal connector 40. In other words, when there is only one drainage groove 31, the drainage groove 31 is located at the bottom of the signal connector 40; when there are multiple drainage grooves 31, the bottom of the signal connector 40 can be provided with one drainage groove 31, two drainage grooves 31, or more than two drainage grooves 31. The appended figures of this embodiment show that the drainage groove 31 is arranged at the bottom of the signal connector 40. Figure 3 FIG. 3 shows a situation where two drainage grooves 31 are provided at the bottom of the signal connector 40 .

[0044] Optionally, the “drainage grooves 31 include a plurality of grooves” in this embodiment means that the drainage grooves 31 can be set to two, three or more. Figure 4 as well as Figure 6 FIG. 3 shows a case where three drainage grooves 31 are provided.

[0045] Specifically, in this embodiment, by positioning at least one drainage groove 31 at the bottom of the signal connector 40, condensed water can be promptly drained from the bottom of the signal connector 40, effectively preventing accumulation of condensed water at the bottom of the signal connector 40. This reduces the risk of malfunction of the signal connector 40 due to condensed water, extends the service life of the signal connector 40, and improves the safety of the battery module. Furthermore, in this embodiment, the provision of multiple drainage grooves 31 ensures that condensed water at various locations on the top surface of the end plate 30 can be collected and drained, preventing localized water accumulation from damaging the signal connector 40 and the battery module.

[0046] Furthermore, in order to prevent the condensed water from flowing everywhere on the top surface of the end plate 30, see Figure 4 As shown, the top surface of the end plate 30 in this embodiment is provided with a drainage groove 31 and a first stopper 32. There are two first stoppers 32, with a drainage groove 31 between them. Each first stopper 32 is protruding from the top surface of the end plate 30. Specifically, the provision of the first stopper 32 serves to stop condensed water on the top surface of the end plate 30, preventing it from flowing toward the edge of the end plate 30 and adversely affecting other components on the end plate 30. Furthermore, the provision of the first stopper 32 facilitates the drainage of condensed water from the drainage groove 31, thereby preventing condensed water from accumulating on the top surface of the end plate 30.

[0047] Further, see Figure 4 As shown, a second stopper 33 is provided on the side of the top surface of the end plate 30 close to the battery cell assembly 10 in this embodiment, and the signal connector 40 is located on the side of the second stopper 33 facing away from the battery cell assembly 10. Specifically, the provision of the second stopper 33 can stop the condensed water on the top surface of the end plate 30, preventing the condensed water from flowing toward the direction close to the battery cell assembly 10, reducing the risk of condensed water flowing toward the battery cell assembly 10, and reducing the occurrence of short circuits. At the same time, in the process of installing bolts and other components on the top surface of the end plate 30, the provision of the second stopper 33 can protect the battery cell assembly 10, preventing bolts and other components from colliding with the battery cell assembly 10, and effectively ensuring the normal operation of the battery cell assembly 10.

[0048] Further, see Figure 4 As shown, the top surface of the end plate 30 in this embodiment is provided with a first stop portion 32 and a lifting hole 34. There are two lifting holes 34, with a first stop portion 32 between the two lifting holes 34, and each lifting hole 34 extends along the height direction of the battery module.

[0049] Specifically, the provision of the lifting holes 34 in this embodiment facilitates the lifting and transportation of the battery module. When the battery module needs to be installed in the battery pack case, it is only necessary to insert a lifting member such as a lifting ring into the lifting hole 34 to complete the installation of the battery module. In order to improve the energy density of the battery pack while achieving a compact design of the battery pack, when installing the battery module in the battery pack case, the gap between two adjacent battery modules is minimized as much as possible to reduce the installation space within the battery pack case. Therefore, in this embodiment, the top surface of the end plate 30 is provided with a lifting hole 34 extending along the height direction of the battery module. The provision of the lifting hole 34 facilitates the movement of the battery module in the height direction, thereby enabling the battery module to be quickly installed in a smaller case and ensuring a small gap between two adjacent battery modules. Moreover, when removing the lifting member connected to the lifting hole 34, the lifting member will not collide with other battery modules, thereby extending the service life of each battery module.

[0050] Further, see Figures 1 to 2 As shown, in this embodiment, along the height direction of the battery module, the top of the end plate 30 is lower than the bottom of the battery protection board 20; the flexible circuit board 22 includes a flexible board body 221 and an extension portion 222, the flexible board body 221 is arranged on the battery protection board 20, the extension portion 222 is connected to the flexible board body 221 and extends from the battery protection board 20 to the top surface of the end plate 30, and the signal connector 40 is arranged on the extension portion 222.

[0051] Specifically, the top of the end plate 30 in this embodiment is lower than the bottom of the battery protection board 20. With this arrangement, when the signal connector 40 is installed on the top surface of the end plate 30, the space occupied by the end plate 30 and the signal connector 40 in the height direction of the battery module can be reduced, thereby enabling the battery module to be compactly arranged in the height direction, helping to reduce the overall space occupancy of the battery module. At the same time, in this embodiment, by installing the signal connector 40 on the extension portion 222, the connection strength between the signal connector 40 and the flexible circuit board 22 can be improved, facilitating signal transmission. In addition, the provision of the extension portion 222 in this embodiment can prevent the flexible board body 221 from being damaged during the connection process between the signal connector 40 and the wiring harness, effectively ensuring the normal operation of the flexible board body 221.

[0052] Optionally, the extension portion 222 in this embodiment can be fixedly connected to the top surface of the end plate 30 by a locking member 50 such as a bolt or screw to prevent the extension portion 222 from falling off from the top surface of the end plate 30 during transportation and installation of the battery module.

[0053] Specifically, see Figure 2As shown, the extension portion 222 in this embodiment includes a first bending section 2221 and a second bending section 2222. The first bending section 2221 is connected to the flexible board body 221 and extends along the height direction of the battery module. The second bending section 2222 is connected to the first bending section 2221 and extends along the length direction of the battery module. The signal connector 40 is arranged in the second bending section 2222.

[0054] Specifically, the provision of the first bend section 2221 and the second bend section 2222 facilitates the installation of the signal connector 40 and improves the connection strength between the signal connector 40 and the extension portion 222. Because the top of the end plate 30 in this embodiment is lower than the bottom of the battery protection plate 20, the provision of the first bend section 2221 allows a portion of the extension portion 222 to mate with the battery cell assembly 10, preventing the extension portion 222 from shaking during transportation and installation of the battery module and potentially affecting other components. The provision of the second bend section 2222 allows another portion of the extension portion 222 to mate with the top surface of the end plate 30, thereby facilitating the installation of the signal connector 40.

[0055] As can be seen from the above-mentioned embodiments, the present application, by installing the signal connector 40 on the end plate 30, can prevent the flexible circuit board 22 from being damaged by external forces applied to the signal connector 40 and the connection forces between the signal connector 40 and the wiring harness, thereby avoiding deformation of the flexible circuit board 22, thereby ensuring the normal operation of the flexible circuit board 22, and further realizing the collection and transmission of signals such as the voltage and temperature of the battery module. At the same time, the present application, by providing a drainage groove 31 on the top surface of the end plate 30, can allow condensed water on the top surface of the end plate 30 to leave the end plate 30 through the drainage groove 31, preventing the condensed water from accumulating on the top surface of the end plate 30, thereby preventing the condensed water from adversely affecting the insulation and voltage resistance performance of the signal connector 40.

[0056] On the other hand, the present application also provides a battery pack, which includes the above-mentioned battery module. Therefore, the battery pack includes all the technical effects of the above-mentioned battery module. Since the technical effects of the battery module have been described in detail above, they will not be repeated here.

[0057] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0058] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0059] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A battery module, characterized in that: include: A battery cell assembly (10), the battery cell assembly (10) comprising a plurality of battery cells (11), the plurality of battery cells (11) being arranged in sequence along the length direction of the battery module; A battery protection board (20), the battery protection board (20) is covered on the top of the battery core assembly (10), the battery protection board (20) is provided with a signal acquisition component (21) and a flexible circuit board (22), and the signal acquisition component (21) and the flexible circuit board (22) are electrically connected; End plates (30), the end plates (30) being arranged at both ends of the battery core assembly (10) in a length direction; A signal connector (40) is provided on the top surface of one of the two end plates (30), and the signal connector (40) is electrically connected to the signal collecting component (21) through the flexible circuit board (22).

2. The battery module according to claim 1, wherein: A drainage groove (31) is provided on the top surface of the end plate (30), and the drainage groove (31) extends along the length direction of the battery module.

3. The battery module according to claim 2, characterized in that: The drainage groove (31) has a first drainage end (311) close to the battery cell assembly (10) and a second drainage end (312) away from the battery cell assembly (10); along the direction from the first drainage end (311) to the second drainage end (312), the drainage groove (31) is inclined toward the bottom surface of the battery module.

4. The battery module according to claim 2, wherein: The drainage groove (31) includes one or more drainage grooves. When there are multiple drainage grooves (31), the multiple drainage grooves (31) are arranged on the top surface of the end plate (30) at intervals along the width direction of the battery module, and at least one drainage groove (31) is located at the bottom of the signal connector (40).

5. The battery module according to claim 1, wherein: The top surface of the end plate (30) is provided with a drainage groove (31) and a first stopper (32), wherein the first stopper (32) includes two, the drainage groove (31) is located between the two first stoppers (32), and each first stopper (32) is protruding from the top surface of the end plate (30).

6. The battery module according to claim 1, characterized in that: A second stopper (33) is provided on the top surface of the end plate (30) close to the battery cell assembly (10), and the signal connector (40) is located on the side of the second stopper (33) facing away from the battery cell assembly (10).

7. The battery module according to claim 1, characterized in that: The top surface of the end plate (30) is provided with a first stopper (32) and a hanging hole (34), wherein the hanging holes (34) include two, the first stopper (32) is located between the two hanging holes (34), and each of the hanging holes (34) extends along the height direction of the battery module.

8. The battery module according to any one of claims 1 to 7, characterized in that: Along the height direction of the battery module, the top of the end plate (30) is lower than the bottom of the battery protection plate (20); The flexible circuit board (22) comprises a flexible board body (221) and an extension portion (222), wherein the flexible board body (221) is arranged on the battery protection board (20), the extension portion (222) is connected to the flexible board body (221) and extends from the battery protection board (20) to the top surface of the end plate (30), and the signal connector (40) is arranged on the extension portion (222).

9. The battery module according to claim 8, characterized in that: The extension portion (222) comprises a first bending section (2221) and a second bending section (2222); the first bending section (2221) is connected to the flexible board body (221) and extends along the height direction of the battery module; the second bending section (2222) is connected to the first bending section (2221) and extends along the length direction of the battery module; the signal connector (40) is arranged on the second bending section (2222).

10. A battery pack, characterized in that: The battery pack includes the battery module according to any one of claims 1 to 9.

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