Battery module, battery pack and vehicle

Abstract

A battery module (1000), a battery pack and a vehicle. The battery module comprises a housing (100), a battery cell (200), a collection circuit board (400) and a terminal (500), wherein the housing (100) is provided with an accommodating cavity (101), the battery cell (200) and the collection circuit board (400) are both disposed in the accommodating cavity (101), and the collection circuit board (400) is electrically connected to a terminal post (201) of the battery cell (200); the terminal (500) is a female connector or a male connector, and the terminal (500) is disposed on the collection circuit board (400) and is electrically connected to the collection circuit board (400); and the housing (100) is provided with a through hole (22), and at least a portion of the terminal (500) extends out of the accommodating cavity (101) via the through hole (22).

Description

Battery module, battery pack and vehicle

[0001] Cross-reference to related applications

[0002] The present disclosure claims priority to the Chinese patent application No. 202421534897.1, filed on July 01, 2024, entitled "Battery module, battery pack and vehicle", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the field of automobiles, and in particular, to a battery module, a battery pack and a vehicle. BACKGROUND

[0004] In the field of new energy vehicles, a collector is generally needed to collect information of the battery and transmit the information to a controller. In the vehicles on the market, the collector and the battery module are independently arranged together inside the battery pack. This is conducive to the modular design of the collector and the battery module respectively, but the space utilization rate is not high. SUMMARY

[0005] The purpose of the present disclosure is to provide a battery module, a battery pack and a vehicle, the battery module integrates a collector, occupies less space as a whole, can set a larger electric energy capacity in the limited space of the battery pack body, and thus improves the energy density of the battery as a whole and the cruising range of the vehicle.

[0006] The first aspect of the present disclosure provides a battery module, comprising a shell, a battery cell, a collection circuit board and a terminal. The shell is provided with a receiving cavity, the battery cell and the collection circuit board are arranged in the receiving cavity, and the collection circuit board is electrically connected with the pole of the battery cell. The terminal is a female seat or a male seat, the terminal is arranged on the collection circuit board and electrically connected with the collection circuit board. The shell is provided with a through hole, and at least part of the terminal extends out of the receiving cavity from the through hole.

[0007] In the battery module provided by the embodiment of the present disclosure, the terminal serves as an external communication interface, and is used to be electrically connected with a controller outside the battery module to transmit the information collected by the collection circuit board to the controller. The collection circuit board is electrically connected with the controller outside the battery module through the terminal, the volume of the terminal is small, and the collection circuit board does not need to be provided with a separate sampling wire harness to extend out of the battery module to the outside of the battery module and be electrically connected with the controller, which is conducive to saving the space inside the battery module, improving the space utilization rate, making the battery module have a larger space to set a larger electric energy capacity of the battery cell, and thus improving the energy density of the battery as a whole. In addition, the reduction of the wire harness inside the battery module reduces the assembly difficulty, the components inside the battery module are easier to install, which is conducive to improving the assembly efficiency and reducing the cost.

[0008] In addition, the collecting circuit board and the battery cell are packaged in the shell to form an intelligent standardized module, which is conducive to standardized production, thereby improving production efficiency, shortening development time and reducing cost. When the battery pack is arranged, a plurality of battery modules are stacked together, which is convenient for assembly and conducive to saving space in the battery pack. In the limited space, the battery pack can be arranged with more battery modules to set a larger electric capacity, thereby improving the volume energy density of the battery pack and the cruising range of the vehicle.

[0009] In some embodiments, a sealing ring is arranged between the outer circumferential surface of the terminal and the hole wall surface of the through hole. By arranging the sealing ring, the inside of the battery module is in a sealed state, preventing water from entering the inside of the battery module, thereby ensuring the normal work of the components in the battery module.

[0010] In some embodiments, the collecting circuit board is electrically connected to the pole of the battery cell through an FPC. The FPC has a small volume, which is conducive to saving space in the battery module.

[0011] In some embodiments, the battery module further comprises an isolation plate arranged in the accommodation cavity. The isolation plate is located between the collecting circuit board and the battery cell. In the direction in which the battery cell points to the collecting circuit board, the projection of the isolation plate covers the projection of the collecting circuit board. The isolation plate isolates the collecting circuit board from the battery cell to avoid short circuit caused by contact between the collecting circuit board and the battery cell.

[0012] In some embodiments, in the direction in which the battery cell points to the collecting circuit board, the collecting circuit board and the isolation plate are spaced apart from each other. This design is conducive to preventing the heat of the battery cell from being transmitted to the collecting circuit board through the isolation plate, so that the components on the collecting circuit board can have a good working temperature, and the performance of the collecting circuit board is better.

[0013] In some embodiments, the side of the isolation plate facing the collecting circuit board is provided with a protrusion, and the protrusion is provided with a clamping groove, and the collecting circuit board is clamped into the clamping groove. The collecting circuit board is installed on the isolation plate in a clamping manner, which is convenient for assembly and conducive to improving work efficiency.

[0014] In some embodiments, the collecting circuit board is further fixedly connected to the isolation plate through a screw. The collecting circuit board is installed on the isolation plate in a clamping and threaded connection manner, and the connection is more stable.

[0015] In some embodiments, the shell comprises an outer shell and a cover plate. Along the height direction of the battery module, the outer shell is provided with a first sub-cavity, and the cover plate is provided with a second sub-cavity. The cover plate closes the opening of the first sub-cavity, and the first sub-cavity and the second sub-cavity are communicated to form an accommodation cavity. The battery cell is located in the first sub-cavity, and the collecting circuit board is located in the second sub-cavity. The through hole is arranged on the cover plate. After the cover plate is disassembled, the collecting circuit board is completely exposed outside the shell, which is more convenient for maintenance than the scheme in which the collecting circuit board and the battery cell are arranged in the same cavity.

[0016] The second aspect of the present disclosure provides a battery pack, comprising a box body and the battery module provided by the first aspect of the present disclosure, wherein the box body is provided with a receiving cavity, and the plurality of battery modules are installed in the receiving cavity.

[0017] The third aspect of the present disclosure provides a vehicle, comprising the battery pack provided by the second aspect of the present disclosure.

[0018] In the battery module provided by the embodiments of the present disclosure, the terminal serves as an external communication interface, and the terminal is used to be electrically connected with the controller outside the battery module to transmit the information collected by the collection circuit board to the controller. The collection circuit board is electrically connected with the controller outside the battery module through the terminal, the volume of the terminal is small, and the collection circuit board does not need to be provided with a separate sampling wire harness to extend from the inside of the battery module to the outside of the battery module to be electrically connected with the controller, which is beneficial to save the space inside the battery module, improve the space utilization, make the battery module have more space to set a larger electric energy capacity of the battery cell, and further improve the energy density of the battery as a whole. In addition, the reduction of the wire harness inside the battery module reduces the assembly difficulty, and the components inside the battery module are easier to install, which is beneficial to improve the assembly efficiency and reduce the cost.

[0019] In addition, the collection circuit board and the battery cell are packaged in the shell to form an intelligent standardized module, which is beneficial to standardized production, and further improves the production efficiency, shortens the development time, and reduces the cost. When the battery pack is set, a plurality of battery modules are stacked together, which is convenient to assemble, and is beneficial to save the space inside the battery pack. In the limited space, the battery pack can set more battery modules to set a larger electric energy capacity, and further improve the volume energy density of the battery pack and the cruising range of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments.

[0021] FIG. 1 is a structural schematic view of the battery module provided by the embodiments of the present disclosure.

[0022] FIG. 2 is an exploded view of the battery module shown in FIG. 1.

[0023] FIG. 3 is a sectional view of the battery module shown in FIG. 1 along the L1-L1 line.

[0024] FIG. 4 is a structural schematic view of the battery module (omitting the cover plate) provided by the embodiments of the present disclosure at another angle.

[0025] FIG. 5 is an enlarged view of A in FIG. 3.

[0026] FIG. 6 is a sectional view of the battery module shown in FIG. 1 along the L2-L2 line.

[0027] FIG. 7 is an enlarged view of B in FIG. 6.

[0028] FIG. 8 is a sectional view of the battery module shown in FIG. 4, taken along the line L3-L3.

[0029] FIG. 9 is an enlarged view of C in FIG. 8.

[0030] Legend: 1000 - battery module, 100 - housing, 101 - receiving cavity, 102 - mounting port, 10 - outer shell, 11 - first sub-cavity, 111 - mating cavity side, 20 - cover plate, 21 - second sub-cavity, 22 - through hole, 23 - first mounting slot, 24 - second mounting slot, 22a - first through hole, 22b - second through hole, 200 - battery cell, 201 - pole, 201a - positive pole, 201b - negative pole, 300 - isolation plate, 30 - protrusion, 31 - clamping groove, 40 - screw seat, 400 - acquisition circuit board, 500 - terminal, 500a - first terminal, 500b - second terminal, 600 - flexible printed circuit (FPC), 700 - sealing ring, 700a - first sealing ring, 700b - second sealing ring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in combination with the drawings in the embodiments of the present disclosure. As shown in FIG. 1, for the convenience of understanding, the length direction of the battery module 1000 is defined as the X axis, the width direction of the battery module 1000 is defined as the Y axis, and the height direction of the battery module 1000 is defined as the Z axis. The X axis, the Y axis and the Z axis are perpendicular to each other.

[0032] Please refer to FIG. 1, FIG. 2 and FIG. 3, the battery module 1000 provided by the embodiments of the present disclosure includes a housing 100, a battery cell 200, an isolation plate 300, an acquisition circuit board 400 and a terminal 500. The housing 100 is provided with a receiving cavity 101, and the battery cell 200, the isolation plate 300, the acquisition circuit board 400 and the terminal 500 are all arranged in the receiving cavity 101. Specifically, the housing 100 includes an outer shell 10 and a cover plate 20. In the Z axis direction, the outer shell 10 is provided with a first sub-cavity 11, and the first sub-cavity 11 is arranged on the side of the outer shell 10 facing the cover plate 20, and the opening of the first sub-cavity 11 faces the cover plate 20. The cover plate 20 is provided with a second sub-cavity 21, and the second sub-cavity 21 is arranged on the side of the cover plate 20 facing the outer shell 10, and the opening of the second sub-cavity 21 faces the outer shell 10.

[0033] The cover plate 20 is sleeved on one end of the shell 10 along the Z-axis direction by means of connection modes including but not limited to clamping, bonding or threaded connection. The end of the shell 10 facing the cover plate 20 extends into the second sub-cavity 21. The cover plate 20 closes the opening of the first sub-cavity 11. The first sub-cavity 11 and the second sub-cavity 21 are communicated to form the receiving cavity 101.

[0034] Please refer to FIG. 3 and FIG. 4. The battery cell 200 is installed in the first sub-cavity 11. The isolation plate 300 and the acquisition circuit board 400 are located in the second sub-cavity 21. Specifically, the isolation plate 300 is stacked on one side of the shell 10 facing the cover plate 20 along the thickness direction by means of connection modes including but not limited to clamping, bonding or threaded connection.

[0035] The size of the isolation plate 300 in the Y-axis direction is greater than the size of the opening of the first sub-cavity 11 in the Y-axis direction. The size of the isolation plate 300 in the X-axis direction is less than the size of the opening of the first sub-cavity 11 in the X-axis direction. It can be understood that the isolation plate 300 does not completely block the opening of the first sub-cavity 11, and the isolation plate 300 has a mounting port 102 with the shell 10.

[0036] The acquisition circuit board 400 is fixedly connected to the side of the isolation plate 300 away from the battery cell 200 by means of connection modes including but not limited to clamping, bonding or threaded connection. In the direction (Z-axis positive direction) in which the battery cell 200 points to the acquisition circuit board 400, the projection of the isolation plate 300 covers the projection of the acquisition circuit board 400. It can be understood that the isolation plate 300 is located between the acquisition circuit board 400 and the battery cell 200. The isolation plate 300 isolates the acquisition circuit board 400 from the battery cell 200, avoiding the short circuit caused by the contact between the acquisition circuit board 400 and the battery cell 200. In some other embodiments, the isolation plate 300 can be omitted, and the acquisition circuit board 400 can be fixedly connected to the shell 10 or the cover plate 20.

[0037] Please refer to FIG. 3, FIG. 4 and FIG. 5. In this embodiment, the acquisition circuit board 400 is electrically connected with the pole of the battery cell 200. The acquisition circuit board 400 is used to collect the voltage, current or temperature of the battery cell 200, and transmit the collected data to the controller outside the battery module 1000.

[0038] In the embodiment, the acquisition circuit board 400 is electrically connected with the pole 201 of the battery cell 200 through a flexible printed circuit (FPC) 600. Specifically, the first sub-cavity 11 includes a cavity side surface 111 opposite to the battery cell 200. The pole 201 includes a positive pole 201a and a negative pole 201b, both of which are arranged on the side of the battery cell 200 facing the cavity side surface 111. The FPC 600 is L-shaped, one end of the FPC 600 is welded with the acquisition circuit board 400 to achieve fixed connection and electrical connection with the acquisition circuit board 400, and the other end of the FPC 600 extends into the space between the cavity side surface 111 and the battery cell 200 from the mounting hole 102 and is welded with the positive pole 201a and the negative pole 201b respectively to achieve electrical connection.

[0039] In other embodiments, the pole 201 can also be arranged on the side of the battery cell 200 facing the cover plate 20, and the isolation plate 300 is provided with a through hole, and the pole 201 is exposed from the side of the isolation plate 300 away from the battery cell 200.

[0040] Please refer to FIG. 6 and FIG. 7, the terminal 500 is located in the second sub-cavity 21, and the terminal 500 is arranged on the acquisition circuit board 400. Specifically, the terminal 500 is fixedly connected to the side of the acquisition circuit board 400 away from the isolation plate 300 and is electrically connected with the acquisition circuit board 400. The terminal 500 serves as an external communication interface, and is used to be electrically connected with the connecting piece of the controller to achieve transmission of information collected by the acquisition circuit board 400 to the controller outside the battery module 1000.

[0041] For example, in the embodiment, the terminal 500 is a female seat. The shell 100 is provided with a through hole 22 arranged on the cover plate 20, the through hole 22 penetrates the cavity bottom surface of the second sub-cavity 21 and the side of the cover plate 20 away from the second sub-cavity 21, that is, the through hole 22 communicates the second sub-cavity 21 with the outside of the cover plate 20. At least part of the terminal 500 extends out of the through hole 22 and is accommodated in the receiving cavity 101, and the socket of the terminal 500 is exposed outside the shell 100 from the through hole 22. The connecting piece of the controller is a male seat, which is inserted into the socket of the terminal 500 to achieve electrical connection. In other embodiments, the terminal 500 can be a male seat, and the connecting piece of the controller can be a female seat.

[0042] It can be understood that in the battery module 1000 provided by the embodiments of the present disclosure, by extending the terminal 500 out of the shell 100, the acquisition circuit board 400 is electrically connected to the controller outside the battery module 1000 through the terminal 500, the volume of the terminal 500 is small, and the acquisition circuit board 400 does not need to be provided with a separate sampling wire harness to extend from the inside of the battery module 1000 to the outside of the battery module 1000 and be electrically connected to the controller, which is beneficial to save the space inside the battery module 1000, improve the space utilization, make the battery module 1000 have more space to set larger electric energy capacity of the battery cell 200, and thus improve the energy density of the whole battery. In addition, the reduction of the wire harness inside the battery module 1000 reduces the assembly difficulty, and the components inside the battery module 1000 are easier to install, which is beneficial to improve the assembly efficiency and reduce the cost.

[0043] In addition, the acquisition circuit board 400 and the battery cell 200 are packaged in the shell 100, only part of the terminal 500 is exposed as a communication interface, and a smart standardized module is formed, which is beneficial to standardized production, thereby improving the production efficiency, shortening the development time, and reducing the cost. When setting the battery pack, a plurality of battery modules 1000 are stacked together, which is convenient to assemble and beneficial to save the space in the battery pack. In the limited space, the battery pack can set more battery modules 1000 to set larger electric energy capacity, thereby improving the volume energy density of the battery pack and improving the cruising range of the vehicle.

[0044] The acquisition circuit board 400 is electrically connected to the pole of the battery cell 200 through the FPC 600, the volume of the FPC 600 is small, which is beneficial to save the space. In addition, the acquisition circuit board 400 is welded and fixed with the FPC 600, which is beneficial to reduce the risk of intermediate connection failure.

[0045] The acquisition circuit board 400 is located in the second sub-cavity 21, after the cover plate 20 is disassembled, the acquisition circuit board 400 is exposed outside the shell 100, which is convenient for maintenance. In other embodiments, the acquisition circuit board 400 can also be arranged in the first sub-cavity 11.

[0046] Please refer to FIG. 6 and FIG. 7, in some embodiments, the terminal 500 includes a first terminal 500a and a second terminal 500b, the through hole 22 includes a first through hole 22a and a second through hole 22b, the first through hole 22a and the second through hole 22b are both arranged on the cover plate 20, and are arranged in the Y-axis direction. The first through hole 22a and the second through hole 22b are both penetrating through the cavity bottom surface of the second sub-cavity 21 and the side of the cover plate 20 away from the second sub-cavity 21, the first through hole 22a communicates the second sub-cavity 21 with the outside of the cover plate 20, and the second through hole 22b communicates the second sub-cavity 21 with the outside of the cover plate 20.

[0047] At least part of the first terminal 500a protrudes from the first through hole 22a to the accommodation cavity 101, and at least part of the second terminal 500b protrudes from the second through hole 22b to the accommodation cavity 101. The first terminal 500a is a high-side communication terminal, and the second terminal 500b is a low-side communication terminal. Both the first terminal 500a and the second terminal 500b can transmit information (voltage and temperature of the battery cell 200) collected by the collection circuit board 400 to a controller or a next / previous collector. Meanwhile, the controller can actively control the collection circuit board 400 through the first terminal 500a and the second terminal 500b, including adjusting the working and sleep states thereof, collecting information of the battery cell 200, and performing voltage balancing on the battery cell 200.

[0048] Please refer to FIG. 7. In some embodiments, a sealing ring 700 is arranged between the outer circumferential surface of the terminal 500 and the hole wall surface of the through hole 22. Specifically, the number of the sealing ring 700 is two, and the two sealing rings 700 are respectively a first sealing ring 700a and a second sealing ring 700b. The first sealing ring 700a is arranged between the outer circumferential surface of the first terminal 500a and the hole wall surface of the first through hole 22a. The hole wall surface of the first through hole 22a is provided with a first mounting groove 23, the first sealing ring 700a is mounted in the first mounting groove 23, and the outer circumferential surface of the first terminal 500a and the groove wall surface of the first mounting groove 23 respectively abut the first sealing ring 700a, so that the outer circumferential surface of the first terminal 500a and the hole wall surface of the first through hole 22a are in a sealed state. In other embodiments, the first mounting groove 23 can be arranged on the outer circumferential surface of the first terminal 500a.

[0049] In other embodiments, the first mounting groove 23 can be arranged on the outer circumferential surface of the first terminal 500a.

[0050] The second sealing ring 700b is arranged between the outer circumferential surface of the second terminal 500b and the hole wall surface of the second through hole 22b. The hole wall surface of the second through hole 22b is provided with a second mounting groove 24, the second sealing ring 700b is mounted in the second mounting groove 24, and the outer circumferential surface of the second terminal 500b and the groove wall surface of the second mounting groove 24 respectively abut the second sealing ring 700b, so that the outer circumferential surface of the second terminal 500b and the hole wall surface of the second through hole 22b are in a sealed state. In other embodiments, the second mounting groove 24 can be arranged on the outer circumferential surface of the second terminal 500b.

[0051] In other embodiments, the second mounting groove 24 can also not be provided, and the hole wall surface of the second through hole 22b and the outer peripheral surface of the second terminal 500b abut against the second sealing ring 700b respectively, so that the second sealing ring 700b is fixed between the hole wall surface of the second through hole 22b and the outer peripheral surface of the second terminal 500b.

[0052] In the embodiment, the first sealing ring 700a and the second sealing ring 700b are arranged, so that the inside of the battery module 1000 is in a sealed state, which is conducive to improving the stability of the internal circuit of the battery module 1000. In other embodiments, sealing can be achieved by sealing glue.

[0053] Please refer to FIGS. 4, 8 and 9. In some embodiments, the collection circuit board 400 is spaced apart from the isolation plate 300 in a direction in which the battery cell 200 points to the collection circuit board 400. Specifically, the side of the isolation plate 300 facing the collection circuit board 400 is provided with a protrusion 30, and the protrusion 30 is provided with a clamping groove 31. The collection circuit board 400 is clamped into the clamping groove 31 to be fixedly connected to the isolation plate 300.

[0054] For example, the number of protrusions 30 is multiple. In the embodiment, the number of protrusions 30 is three. In other embodiments, the number of protrusions 30 can be one, two, four, etc. The multiple protrusions 30 are arranged around the outer periphery of the collection circuit board 400, and the multiple clamping grooves 31 are arranged on the side of the multiple protrusions 30 facing the collection circuit board 400. The collection circuit board 400 is clamped into the multiple clamping grooves 31 to be fixedly connected to the isolation plate 300.

[0055] In the embodiment, the collection circuit board 400 is spaced apart from the isolation plate 300, which is conducive to preventing the heat of the battery cell 200 from being transmitted to the collection circuit board 400 through the isolation plate 300, ensuring that the components of the collection circuit board 400 have a good working temperature, so that the components have better performance. At the same time, this design can better isolate the collection circuit board 400 from the battery cell 200, preventing short circuit caused by contact between the collection circuit board 400 and the battery cell 200.

[0056] In the embodiment, the collection circuit board 400 is fixed to the isolation plate 300 by being clamped into the clamping groove 31 of the protrusion 30. The installation of the collection circuit board 400 does not need to rely on other mounting parts and mounting equipment, which is convenient for assembly and is conducive to improving the assembly efficiency.

[0057] Referring to FIG. 4, in some embodiments, the acquisition circuit board 400 is also fixedly connected to the isolation plate 300 by screws. Specifically, the side of the isolation plate 300 facing the acquisition circuit board 400 is provided with screw seats 40. The number of screw seats 40 is two, and the two screw seats 40 are oppositely arranged along the Y-axis direction. The acquisition circuit board 400 is installed on the two screw seats 40 by screws. In this embodiment, the acquisition circuit board 400 is fixedly connected to the isolation plate 300 by the way of clamping and threaded connection, and the connection is more stable.

[0058] In other embodiments, the acquisition circuit board 400 can also be fixed to the isolation plate 300 by screws only.

[0059] The embodiments of the present disclosure also provide a battery pack, which comprises a box body and a plurality of battery modules 1000 provided by the embodiments of the present disclosure. The box body is provided with a receiving cavity, and the plurality of battery modules 1000 are installed in the receiving cavity.

[0060] The embodiments of the present disclosure also provide a vehicle, which comprises the battery pack provided by the embodiments of the present disclosure, and the battery pack supplies power to the vehicle.

[0061] The above has introduced the embodiments of the present disclosure in detail. The specific examples are applied in this paper to describe the principles and implementation modes of the present disclosure. The above description of the embodiments is only used to help understand the method of the present disclosure and its core idea.

Claims

1.A battery module, comprising a shell (100), a battery cell (200), a collection circuit board (400) and a terminal (500); the shell (100) is provided with a receiving cavity (101), the battery cell (200) and the collection circuit board (400) are arranged in the receiving cavity (101), and the collection circuit board (400) is electrically connected with a pole (201) of the battery cell (200); the terminal (500) is a female seat or a male seat, the terminal (500) is arranged on the collection circuit board (400) and is electrically connected with the collection circuit board (400); the shell (100) is provided with a through hole (22), and at least part of the terminal (500) extends out of the receiving cavity (101) from the through hole (22). 2.The battery module according to claim 1, wherein a sealing ring (700) is arranged between an outer circumferential surface of the terminal (500) and a hole wall surface of the through hole (22). 3.The battery module according to claim 1 or 2, wherein the collection circuit board (400) is electrically connected with the pole (201) of the battery cell (200) through an FPC. 4.The battery module according to any one of claims 1 to 3, further comprising a separation plate (300), the separation plate (300) is arranged in the receiving cavity (101); the separation plate (300) is located between the collection circuit board (400) and the battery cell (200); and in a direction in which the battery cell (200) points to the collection circuit board (400), a projection of the separation plate (300) covers a projection of the collection circuit board (400). 5.The battery module according to claim 4, wherein in the direction in which the battery cell (200) points to the collection circuit board (400), the collection circuit board (400) is spaced apart from the separation plate (300). 6.The battery module according to claim 5, wherein one side of the separation plate (300) facing the collection circuit board (400) is provided with a protrusion (30), the protrusion (30) is provided with a clamping groove (31), and the collection circuit board (400) is clamped into the clamping groove (31). 7.The battery module according to claim 6, wherein the collection circuit board (400) is further fixedly connected to the separation plate (300) through a screw. 8.The battery module according to any one of claims 1 to 7, wherein the shell (100) comprises an outer shell (10) and a cover plate (20), along a height direction of the battery module (1000), the outer shell (10) is provided with a first sub-cavity (11), and the cover plate (20) is provided with a second sub-cavity (21); the cover plate (20) closes an opening of the first sub-cavity (11), and the first sub-cavity (11) and the second sub-cavity (21) are communicated to form the receiving cavity (101); the battery cell (200) is located in the first sub-cavity (11), the collection circuit board (400) is located in the second sub-cavity (21), and the through hole (22) is arranged on the cover plate (20). ​ 9.A battery pack, comprising a box body and a plurality of battery modules according to any one of claims 1 to 8, wherein the box body is provided with a receiving cavity, and the plurality of battery modules (1000) are installed in the receiving cavity. 10.A vehicle, comprising the battery pack according to claim 9.

Images