Busbar assembly, battery module and vehicle

Abstract

The utility model relates to a busbar assembly, a battery module and a vehicle, relates to the field of vehicle parts, and solves the problem that a temperature measurement assembly is inconvenient to mount and dismount. The busbar assembly comprises a connecting bar and a temperature measuring assembly. The connecting bar is provided with a first surface and a second surface which are oppositely arranged, and a first limiting part is formed on the first surface. The temperature measuring assembly is at least partially located on the side where the first surface of the connecting bar is located. The temperature measuring assembly comprises a fixing piece. The fixing piece comprises a first fixing part and a second fixing part. The first fixing part is located on the side, where the first surface is located, of the connecting bar and abuts against the first surface. The second fixing part is located on the side, close to the connecting bar, of the first fixing part and connected with the first limiting part. According to the busbar assembly, the temperature measuring assembly is fixed through direct cooperation of the fixing piece of the temperature measuring assembly and the first surface of the connecting bar, so that the temperature measuring assembly is more convenient to mount and dismount.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle components, in particular to a busbar assembly, a battery module and a vehicle. BACKGROUND

[0002] The battery module is the most core part and power source in a new energy vehicle, and is usually assembled by a plurality of single cells in series and parallel to achieve high voltage and large capacity required for driving the electric vehicle. The interconnection between the cells to form the battery module is a key technology. In the existing battery module, a busbar assembly is usually used to complete the series and parallel connection of the battery pack. In order to collect the cell voltage and the cell temperature in real time, a temperature measurement assembly and a voltage sampling harness need to be arranged on the surface of the cell.

[0003] CN218388100U discloses a blister CCS assembly capable of hot riveting fixation of FPC, comprising an electric connection sheet, a blister isolation plate, an FPC assembly and an NTC thermistor. The electric connection sheet is provided with the blister isolation plate, the middle part of the blister isolation plate is formed with a first mounting groove adapted to the FPC assembly along the length direction, a plurality of second mounting grooves adapted to the NTC injection support are arranged on both sides of the first mounting groove, and the NTC thermistor is located on the NTC injection support.

[0004] However, since the above-mentioned scheme additionally increases the injection support to fix the temperature measurement assembly, an additional process is required to install the injection support when assembling the busbar assembly, and the assembly efficiency of the busbar assembly is low. Utility model content

[0005] The purpose of the present application is to provide a busbar assembly, a battery module and a vehicle, which solve the problem of low assembly efficiency of the busbar assembly.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] According to the first aspect of the present application, a busbar assembly is provided, which comprises a connecting bar and a temperature measurement assembly. The connecting bar has a first surface and a second surface arranged oppositely, and the first surface is formed with a first limiting part. The temperature measurement assembly is at least partially located on one side of the first surface of the connecting bar. The temperature measurement assembly comprises a fixing part, which comprises a first fixing part and a second fixing part. The first fixing part is located on one side of the first surface of the connecting bar and abuts against the first surface to limit the displacement of the temperature measurement assembly in the direction perpendicular to the first surface. The second fixing part is located on one side of the first fixing part close to the connecting bar and is connected with the first limiting part to limit the displacement of the temperature measurement assembly in the direction parallel to the first surface.

[0008] According to the above technical means, when the surface of the first fixing part abuts against the first surface of the connecting row, the connecting row will apply a reaction force to the first fixing part in a direction opposite to the abutting direction, so as to prevent the temperature measuring assembly from further displacement in the abutting direction. Meanwhile, the second fixing part is located on the side of the first fixing part close to the connecting row and is connected with the first limiting part. Therefore, the second fixing part can be connected with the first limiting part on the basis of the abutting of the first limiting part and the first surface, and the displacement of the temperature measuring assembly in the direction of the first surface is limited through the connection relationship with the first limiting part.

[0009] In a possible implementation, the first limiting part comprises a limiting hole. The second fixing part comprises a fixing column. The fixing column is located in the limiting hole.

[0010] According to the above technical means, the circumferential wall of the fixing column abuts against the inner wall of the limiting hole, so as to limit the displacement of the temperature measuring assembly in the direction perpendicular to the opening direction of the first limiting hole.

[0011] In a possible implementation, the number of the first limiting parts is multiple, and the multiple first limiting parts further comprise a limiting slot. The number of the second fixing parts is multiple, and the multiple second fixing parts comprise a protection part. The protection part is located in the limiting slot. The protection part is arranged around the inner wall of the limiting slot.

[0012] According to the above technical means, the multiple first limiting parts can cooperate with the multiple second fixing parts to limit the displacement of the temperature measuring assembly in the direction of the first surface at the setting positions of the multiple second fixing parts, so that the fixing of the temperature measuring assembly is more stable. The protection part is arranged around the inner wall of the limiting slot, so that the protection part can protect the components arranged in the protection part, and prevent the components from malfunctioning due to the collision with other components by isolating the components from other components. In addition, the limiting slot can limit the further displacement of the protection part in the abutting direction, so as to further limit the displacement of the temperature measuring assembly, because the outer wall of the protection part abuts against the inner wall of the limiting slot.

[0013] In a possible implementation, the connecting row comprises a side wall. The side wall is located between the first surface and the second surface and is arranged around the periphery of the first surface and the second surface. The limiting slot is arranged on the side wall.

[0014] According to the above technical means, more setting modes of the limiting slot are provided, so that the fixing mode of the temperature measuring assembly is more diversified.

[0015] In a possible implementation, the limiting hole penetrates the second surface.

[0016] According to the above technical means, the length of the fixed column in the through direction can be greater than, less than or equal to the vertical distance from the first surface to the second surface, and the size requirement of the fixed column in the through direction is low. At the same time, the limiting hole is directly designed to pass through, which is simpler than the processing of determining the size depth of the counterbore.

[0017] In a possible implementation, the limiting groove penetrates the second surface.

[0018] According to the above technical means, the length of the protection part in the through direction can be greater than, less than or equal to the vertical distance from the first surface to the second surface, and the size requirement of the protection part in the through direction is low. At the same time, the limiting groove is directly designed to pass through, which is simpler than the processing of determining the size depth of the groove.

[0019] In a possible implementation, the busbar assembly further comprises a temperature measuring element and a protective glue. The temperature measuring element is arranged on the first fixed part, and the protection part is arranged around the temperature measuring element. The protective glue is filled in the inside of the protection part and wraps the temperature measuring element.

[0020] According to the above technical means, the temperature around the temperature measuring element can be collected. Since the relative position of the temperature measuring element and the fixed part is fixed, the displacement of the fixed part is limited, and the displacement of the temperature measuring element is also limited, thereby ensuring the fixation of the temperature measuring position. In addition, the protective glue is filled in the inside of the protection part to separate the temperature measuring element from the outside, thereby enhancing the waterproof performance and reliability of the temperature measuring assembly and avoiding temperature sampling failure to a certain extent.

[0021] In a possible implementation, the first fixed part is provided with a avoiding hole. The busbar assembly further comprises a conductor branch and a reinforcing plate. One end of the conductor branch is connected with the temperature measuring element, the conductor branch is arranged in the avoiding hole, and part of the conductor branch is located on the side of the first fixed part away from the second fixed part. The reinforcing plate is arranged on the side of the first fixed part away from the second fixed part and connected with the conductor branch.

[0022] According to the above technical means, one end of the conductor branch arranged in the avoiding hole can be connected with the temperature measuring element arranged on the first fixed part, and the other end of the conductor branch passes through the side of the first fixed part away from the second fixed part and is connected with the flexible circuit board, so that the temperature signal collected by the temperature measuring element is transmitted to the flexible circuit board through the conductor branch.

[0023] At the same time, the reinforcing plate is arranged on the side of the first fixed part away from the second fixed part. In this way, the reinforcing plate can be used to reinforce the structure of the conductor branch to avoid faults caused by the collision between the conductor branch and the fixed part.

[0024] According to the second aspect of the present application, a battery module is provided, comprising the busbar assembly of any one of the first aspect.

[0025] In a possible implementation, the battery module further comprises a battery pack and a heat-conducting member. The busbar assembly is arranged on one side of the battery pack. The heat-conducting member is arranged between the battery pack and the busbar assembly, and abuts against one side of the battery pack and the other side of the busbar assembly.

[0026] According to the above technical means, the position and wiring of the connection between the battery pack and the busbar assembly are on one side surface of the battery pack, reducing the wiring complexity caused by the connection on different sides of the battery pack. Meanwhile, the busbar assembly is arranged on one side of the battery pack, so that the operator can be on one side of the battery pack when installing and maintaining the busbar assembly, without the need to move between different sides of the battery pack, thus facilitating the installation and maintenance of the busbar assembly.

[0027] Meanwhile, the heat-conducting member can transmit the temperature of the battery pack to the busbar assembly due to the good heat-conducting property of the material, facilitating the busbar assembly to collect the temperature information of the battery pack.

[0028] According to a third aspect of the present application, a vehicle is provided, comprising the battery module of the second aspect.

[0029] It should be noted that the technical effects brought by the battery module of the second aspect and the vehicle of the third aspect can refer to the technical effects brought by the corresponding implementation modes of the first aspect, which will not be repeated here.

[0030] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A structural schematic diagram of a battery module provided by an embodiment of the present application;

[0032] Figure 2 A partial structural schematic diagram of a battery module provided by an embodiment of the present application;

[0033] Figure 3 A partial structural schematic diagram of a battery module provided by an embodiment of the present application;

[0034] In the drawings, 100 is a battery module;

[0035] 10 is a busbar assembly; 11 is a connecting row; 111 is a first limiting part; 1111 is a limiting hole; 1112 is a limiting groove; 12 is a temperature measuring assembly; 121 is a temperature measuring element; 122 is a first fixing part; 123 is a second fixing part; 1231 is a fixing column; 1232 is a protection part; 13 is a conductor branch; 14 is a reinforcing plate; 15 is a flexible circuit board; 151 is a plug-in part;

[0036] 20 is a battery pack;

[0037] 30 - heat conducting member;

[0038] 40 - blister base. DETAILED DESCRIPTION

[0039] In order for those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings.

[0040] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0041] Under the dual pressures of energy shortage and environmental pollution, electric vehicles have developed rapidly in recent years. The battery module is an important part of the electric vehicle, and its cost and weight are the key points to break through the battery technology.

[0042] As the most core component and power source in electric vehicles, the battery module is usually assembled by several single cells in series and parallel to achieve the high voltage and large capacity required to drive electric vehicles. The interconnection between the cells to form the battery module is a key technology. In the existing battery module, busbar assemblies are usually used to complete the series and parallel connection of the battery pack. At the same time, in order to collect the cell voltage and cell temperature in real time, temperature measurement assemblies and voltage sampling harnesses need to be arranged on the surface of the cells.

[0043] The busbar assembly of the battery module includes a connection bar and a flexible circuit board. The connection bar is used to connect each single cell to form a series or parallel circuit and deliver current to the motor controller. The connection bar is located on one side of the cell monomer and connected with the cell monomer.

[0044] Among them, the number of connection bars is multiple, and multiple connection bars are arranged on one side of the single cell and connected with a part of the cells. In addition, the battery module can also include a flexible circuit board, which can be arranged on the side of the cell close to the connection bar and located between the adjacent two connection bars. The flexible circuit board is connected with the temperature measurement assembly and the voltage sampling harness to transmit the collected temperature and voltage signals to the battery management system.

[0045] The busbar assembly also includes a vacuum forming base, which is positioned between the busbar assembly and the battery cell. The busbar assembly is mounted on the vacuum forming base and can be fixed in place by the vacuum forming base.

[0046] One end of the voltage sampling harness is connected to a connector, and the other end is connected to a flexible circuit board. The current generated by the battery cell passes through the connector and is collected by the voltage sampling harness, transmitting the voltage signal into the flexible circuit board.

[0047] Traditional temperature sensing components typically consist of an injection-molded bracket and a temperature sensing element. The temperature sensing element is positioned using the injection-molded bracket. The injection-molded bracket is mounted on a vacuum-formed base, passes through the bottom of the flexible circuit board, and overlaps with the bottom surface of the connecting strips on both sides. The injection-molded bracket is equipped with heat-fitting posts that match the temperature sensing element to secure it.

[0048] As mentioned above, the injection-molded bracket can be placed on the vacuum-formed base, located below the flexible circuit board, and overlaps with the lower part of the connecting strips on both sides of the flexible circuit board. The injection-molded bracket occupies a large space and is inconvenient to install and disassemble, making the installation and disassembly of the temperature sensing component relatively complex.

[0049] To address the complexity of installing and disassembling temperature sensing components, this application provides a vehicle, which can be an electric vehicle. To achieve the basic functions of the vehicle, it may include components such as a body, chassis, powertrain, and electrical system.

[0050] The vehicle body may include a frame, doors, and windows. The frame forms the overall external shape of the vehicle and creates the passenger space. Doors can be rotatably connected to the frame, allowing the interior of the passenger space to be opened or closed. Windows can be mounted on the doors or the frame, providing passengers with a view of the outside environment.

[0051] The chassis may include components such as the transmission system and the drive system. The drive system drives the wheels to rotate. Depending on the drive method, drive systems can be classified as front-wheel drive, rear-wheel drive, and four-wheel drive. The transmission system transmits power generated by the power system to the wheels.

[0052] The powertrain provides power to the vehicle, enabling it to perform basic driving functions. The powertrain includes the drive motor.

[0053] In order to supply power to electrical components such as drive motors, Figure 1 As shown, Figure 1A structural schematic diagram of a battery module 100 is provided in the embodiments of the present application. The vehicle provided in the embodiments of the present application further comprises the battery module 100. The battery module 100 can be used to provide electric energy. The battery module 100 is electrically connected with a driving motor of the vehicle. In this way, the electric energy of the battery module 100 can be converted into mechanical energy by the driving motor and transmitted to a transmission system.

[0054] In addition, in order to monitor the working state of the battery module 100, the vehicle provided in the embodiments of the present application further comprises a battery management system. The battery management system collects electric signals of the battery module 100 and controls the output power of the battery module 100 through a predetermined algorithm, thereby controlling the state of the vehicle. The battery module 100 is connected with the battery management system through the connector 151.

[0055] Meanwhile, in order to supply power to the electrical components and monitor the working state of the battery module 100, the battery module 100 provided in the embodiments of the present application comprises a busbar assembly 10. The battery module 100 is connected with the electrical components through the busbar assembly 10. The electrical components can be the driving motor, the battery management system, etc. In this way, the electric current and electric signals of the battery module 100 can be transmitted to the electrical components, thereby achieving power supply and state monitoring of the battery module 100.

[0056] In a possible implementation manner, as shown in Figure 1 The battery module 100 further comprises a battery pack 20. The busbar assembly 10 is arranged on one side of the battery pack 20.

[0057] In this way, the position and wiring of the connection between the battery pack 20 and the busbar assembly 10 are on the side surface of the battery pack 20, thereby reducing the wiring complexity caused by the connection on different sides of the battery pack 20. Meanwhile, the busbar assembly 10 is arranged on one side of the battery pack 20, so that the operator can be only on one side of the battery pack 20 when installing and maintaining the busbar assembly 10, without the need to move positions on different sides of the battery pack 20, thereby facilitating the installation and maintenance of the busbar assembly 10.

[0058] As shown in Figure 2 , Figure 2 A partial structural schematic diagram of the battery module 100 is provided in the embodiments of the present application. The battery module further comprises a heat-conducting member 30. The heat-conducting member 30 is arranged between the battery pack 20( Figure 1 ) and the busbar assembly 10( Figure 1 ), abuts against the battery pack 20 on one side and abuts against the busbar assembly 10 on the other side.

[0059] In this way, the heat-conducting member 30 can transmit the temperature of the battery pack 20 to the busbar assembly 10 due to the good heat-conducting property of the selected material, thereby facilitating the busbar assembly 10 to collect the temperature information of the battery pack 20.

[0060] In addition, such as Figure 2 As shown, the battery module 100 also includes a blister base 40. The blister base 40 can be disposed on the battery pack 20 ( Figure 1 ) and busbar assembly 10 ( Figure 1 Between the battery pack 20 and the busbar assembly 10, the vacuum forming base 40 has heat-conducting holes, and the heat-conducting component 30 can be disposed within the heat-conducting holes. Thus, the side of the heat-conducting component 30 furthest from the busbar assembly 10 can pass through the vacuum forming base 40 and connect with the battery pack 20. Figure 1 (Directly approach)

[0061] like Figure 3 As shown, Figure 3 This is a partial structural diagram of a battery module 100 provided in an embodiment of this application. The busbar assembly 10 includes a connecting busbar 11 and a temperature sensing assembly 12. The connecting busbar 11 has a first surface (i.e., the lower surface of the connecting busbar 11) and a second surface (i.e., the upper surface of the connecting busbar 11) disposed opposite to each other, and a first limiting portion 111 is formed on the first surface. The temperature sensing assembly 12 is at least partially located on the side where the first surface of the connecting busbar 11 is located.

[0062] For example, the battery pack 20 can be located on the side where the first surface of the connector 11 is located. In this way, the part of the temperature sensing component 12 located on the side where the first surface of the connector 11 is located is closer to the battery pack 20. The distance between the battery pack 20 and the temperature sensing component 12 is shorter, the loss of temperature transmitted to the temperature sensing component 12 is smaller, and the temperature information collected by the temperature sensing component 12 is more accurate.

[0063] At the same time, a portion of the connecting strip 11 is welded to the pole of two adjacent battery cells to achieve electrical connection between the battery cells.

[0064] The temperature measuring component 12 includes a fixing member. The fixing member includes a first fixing part 122 and a second fixing part 123. The first fixing part 122 is located on the side of the connecting row 11 where the first surface is located, and abuts against the first surface to limit the displacement of the temperature measuring component 12 in a direction perpendicular to the first surface. The second fixing part 123 is located on the side of the first fixing part 122 near the connecting row 11, and is connected to the first limiting part 111 to limit the displacement of the temperature measuring component 12 in a direction parallel to the first surface.

[0065] Thus, since the connecting strip 11 is fixed to the battery pack 20 ( Figure 1 Therefore, when the surface of the first fixing part 122 abuts against the first surface of the connecting row 11, the connecting row 11 will exert a reaction force on the first fixing part 122 in the opposite direction of the abutment, so as to prevent the temperature measuring component 12 from moving further in the abutment direction.

[0066] Meanwhile, the second fixing part 123 is located at the side of the first fixing part 122 close to the connecting row 11 and is connected with the first limiting part 111. The second fixing part 123 can be connected with the first limiting part 111 on the basis of abutting of the first limiting part 111 against the first surface, and the displacement of the temperature measuring assembly 12 in the direction of the first surface is limited through the connection relationship with the first limiting part 111.

[0067] In a possible implementation, as shown in Figure 3 The first limiting part 111 comprises a limiting hole 1111, and the second fixing part 123 comprises a fixing column 1231. The fixing column 1231 is located in the limiting hole 1111.

[0068] In this way, the circumferential wall of the fixing column 1231 abuts against the inner wall of the limiting hole 1111, so as to limit the displacement of the temperature measuring assembly 12 in the direction perpendicular to the opening direction of the first limiting hole 1111.

[0069] When the limiting hole 1111 is a through hole, the fixing column 1231 can be a hot riveting column, and the fixing part is further fixed with the first limiting part 111 through a hot riveting process. At this time, the limiting hole 1111 can be a strip-shaped hole, which is used to absorb the assembly error when the temperature measuring assembly 12 is connected to the flexible circuit board 15.

[0070] In a possible implementation, the number of the first limiting part 111 is multiple, as shown in Figure 3 The multiple first limiting parts 111 further comprise a limiting groove 1112. The number of the second fixing part 123 is multiple, and the multiple second fixing parts 123 comprise a protection part 1232. The protection part 1232 is located in the limiting groove 1112. The protection part 1232 is arranged around the inner wall of the limiting groove 1112.

[0071] In this way, the multiple first limiting parts 111 can cooperate with the multiple second fixing parts 123 to limit the displacement of the temperature measuring assembly 12 in the direction of the first surface at the setting positions of the multiple second fixing parts 123, so as to make the fixing of the temperature measuring assembly 12 more stable. The protection part 1232 is arranged around the inner wall of the limiting groove 1112, so that the protection part 1232 can protect the components arranged in the protection part 1232, prevent the components from malfunctioning due to collision with other components, by isolating the components from other components. And because the outer wall of the protection part 1232 abuts against the inner wall of the limiting groove 1112, the limiting groove 1112 can limit the further displacement of the protection part 1232 in the abutting direction, so as to further limit the displacement of the temperature measuring assembly 12.

[0072] For example, the projection shape of the protection part 1232 on the first surface can be a square, a circle, etc., which is not described herein.

[0073] In a possible implementation, the connecting row 11 comprises a side wall. The side wall is located between the first surface and the second surface and is arranged around the periphery of the first surface and the second surface. The limiting groove 1112 is arranged on the side wall.

[0074] In this way, more setting modes of the limiting groove 1112 are provided, and the fixing mode of the temperature measuring assembly 12 is more diversified.

[0075] In a possible implementation, the limiting hole 1111 penetrates the second surface. For example, the limiting hole 1111 can also be a blind hole.

[0076] In this way, the length of the fixing column 1231 along the penetrating direction can be greater than, less than or equal to the vertical distance from the first surface to the second surface, and the size requirement of the fixing column 1231 along the penetrating direction is lowered. Meanwhile, the limiting hole 1111 is directly penetrated, and the machining is simpler than that of the counterbore which needs to determine the size depth.

[0077] In a possible implementation, the limiting groove 1112 penetrates the second surface.

[0078] In this way, the length of the protection portion 1232 along the penetrating direction can be greater than, less than or equal to the vertical distance from the first surface to the second surface, and the size requirement of the protection portion 1232 along the penetrating direction is lowered. Meanwhile, the limiting groove 1112 is directly penetrated, and the machining is simpler than that of the groove which needs to determine the size depth.

[0079] In a possible implementation, as Figure 3 The busbar assembly 10 further comprises a temperature measuring element 121 and a protective glue. The temperature measuring element 121 is arranged on the first fixing portion 122, and the protection portion 1232 is arranged around the temperature measuring element 121. The protective glue is filled in the interior of the protection portion 1232 and wraps the temperature measuring element 121.

[0080] In this way, the temperature around the temperature measuring element 121 can be collected. Since the relative position between the temperature measuring element 121 and the fixing member is fixed, the displacement of the fixing portion is limited, and the displacement of the temperature measuring element 121 is also limited, so that the fixing of the temperature measuring position is ensured.

[0081] In addition, the protective glue is filled in the interior of the protection portion 1232 to separate the temperature measuring element 121 from the outside, so that the waterproof performance and reliability of the temperature measuring assembly 12 are enhanced, and the temperature sampling failure is avoided to a certain extent.

[0082] For example, the protective glue is ultraviolet curing glue or epoxy glue.

[0083] In a possible implementation, the first fixing portion 122 is provided with a relief hole. For example, Figure 3As shown, the busbar assembly 10 also includes a conductor branch 13 and a reinforcing plate 14. One end of the conductor branch 13 is connected to the temperature sensing element 121, and the conductor branch 13 passes through the clearance hole, with a portion located on the side of the first fixing part 122 away from the second fixing part 123. The reinforcing plate 14 is disposed on the side of the first fixing part 122 away from the second fixing part 123 and is connected to the conductor branch 13.

[0084] In this way, one end of the conductor branch 13 passing through the clearance hole can be connected to the temperature measuring element 121 provided on the first fixing part 122, and the other end passes through the side of the first fixing part 122 away from the second fixing part 123 and is connected to the flexible circuit board 15, so that the temperature signal collected by the temperature measuring element 121 is transmitted to the flexible circuit board 15 through the conductor branch 13.

[0085] For example, the conductor branch 13 consists of protective layers on the upper and lower surfaces and two internal wires. The upper surface protective layer has a micro-opening at the corresponding position of the temperature sensing element 121, so that the conductor branch 13 can be soldered to the temperature sensing element 121 for conduction.

[0086] Meanwhile, the reinforcing plate 14 is disposed on the side of the first fixing part 122 away from the second fixing part 123. In this way, the reinforcing plate 14 can be used to structurally reinforce the conductor branch 13 and prevent the conductor branch 13 from colliding with the fixing member and causing failure.

[0087] In one possible implementation, the reinforcing plate 14 can be disposed between the heat-conducting element 30 and the conductor branch 13 to prevent collisions between the conductor branch 13 and the heat-conducting element 30 that could lead to malfunctions.

[0088] For example, the reinforcing plate 14 is an epoxy resin fiberglass board.

[0089] In one possible implementation, the thickness of the heat-conducting element 30 is greater than that of the reinforcing plate 14 and the battery pack 20. Figure 1 The distance between the surfaces of the busbar assembly 10.

[0090] In this way, the heat-conducting component 30 can be interference-fitted into the reinforcing plate 14 and the battery pack 20. Figure 1 Between the surfaces of the busbar assembly 10, the heat-conducting element 30 applies pressure to the reinforcing plate 14. The pressure is transmitted to the fixing element through the conductor branch 13 connected to the reinforcing plate 14, making the fixing element more firmly abut against the first limiting part 111.

[0091] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A busbar assembly, characterized in that, The application relates to a busbar assembly (10) and a battery module (100) comprising the busbar assembly (10). The busbar assembly (10) comprises: a busbar (11) having a first surface and a second surface arranged oppositely, and the first surface is formed with a first limiting portion (111); and a temperature measuring assembly (12) located at least partially on a side where the first surface of the busbar (11) is located. The temperature measuring assembly (12) comprises:

2. The busbar assembly of claim 1, wherein, a fixing member comprising a first fixing portion (122) and a second fixing portion (123); the first fixing portion (122) is located on the side where the first surface of the busbar (11) is located, and abuts against the first surface to limit the displacement of the temperature measuring assembly (12) in a direction perpendicular to the first surface; and the second fixing portion (123) is located on a side of the first fixing portion (122) close to the busbar (11), and is connected with the first limiting portion (111) to limit the displacement of the temperature measuring assembly (12) in a direction parallel to the first surface.

3. The busbar assembly of claim 2, wherein, The first limiting portion (111) comprises a limiting hole (1111); the second fixing portion (123) comprises a fixing column (1231); and the fixing column (1231) is located in the limiting hole (1111). The number of the first limiting portions (111) is plural, and the plural first limiting portions (111) further comprise limiting grooves (1112); the number of the second fixing portions (123) is plural, and the plural second fixing portions (123) comprise protection portions (1232); and the protection portions (1232) are located in the limiting grooves (1112).

4. The busbar assembly of claim 3, wherein, The protection portions (1232) are arranged around the inner wall of the limiting grooves (1112).

5. The busbar assembly according to claim 3 or 4, characterized in that The busbar (11) comprises a side wall; the side wall is located between the first surface and the second surface, and is arranged around the periphery of the first surface and the second surface; and the limiting grooves (1112) are formed on the side wall.

6. The busbar assembly of claim 3, wherein, The limiting hole (1111) penetrates through the second surface; and / or the limiting groove (1112) penetrates through the second surface. The busbar assembly (10) further comprises: a temperature measuring element (121) arranged on the first fixing portion (122), and the protection portion (1232) is arranged around the temperature measuring element (121); and 7. The busbar assembly of claim 6, wherein, a protective glue filled in the interior of the protection portion (1232) and wrapping the temperature measuring element (121). The first fixing portion (122) is formed with a avoiding hole; the busbar assembly (10) further comprises: a conductor branch (13) having one end connected with the temperature measuring element (121), and the conductor branch (13) is arranged in the avoiding hole and partially located on a side of the first fixing portion (122) away from the second fixing portion (123); and 8. A battery module, characterized by a reinforcing plate (14) arranged on the side of the first fixing portion (122) away from the second fixing portion (123) and connected with the conductor branch (13).

9. The battery module of claim 8, wherein, The battery module (100) further comprises: the busbar assembly (10) according to any one of claims 1-7. A battery pack, the busbar assembly (10) is arranged on one side of the battery pack; and A heat conduction member (30) is arranged between the battery pack and the busbar assembly (10), one side of the heat conduction member (30) abuts against the battery pack, and the other side of the heat conduction member (30) abuts against the busbar assembly (10).

10. A vehicle characterized by comprising: The battery module (100) of claim 8 or 9.

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