Converter device and battery module

Abstract

The utility model relates to a confluence device and a battery module, the confluence device is used for being electrically connected with a battery cell, the battery cell comprises an electrode terminal, and the confluence device comprises an isolation plate with a plurality of mounting positions distributed at intervals; each mounting position is provided with one busbar, the busbars are connected with the isolation plate, the busbars are provided with matching grooves, the matching grooves are arranged in a sunken mode from one side of the busbars in the thickness direction of the isolation plate to the other side of the busbars, wall parts forming the matching grooves in an enclosing mode comprise bottom walls and side walls, the side walls are provided with elastic matching parts, and the elastic matching parts are arranged on the bottom walls. And the electrode terminal can extend into the matching groove and is in interference fit with the elastic matching part so as to be electrically connected with the busbar. According to the utility model, the electric connection requirement between the battery cells can be met, the reliability of data acquisition of a temperature control system of the battery module is ensured, and the later maintenance work of the battery module is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a converging device and a battery module. Background Art

[0002] With the rapid development of lithium-ion battery technology, the rapid integration of lithium batteries has become a key technology in many fields, especially in electric vehicles and renewable energy storage systems.

[0003] At present, the battery cells are connected by busbars by welding. However, the quality of welding process has a direct impact on the performance of the battery module. Welding may produce large thermal resistance, leading to local high temperature, interfering with the temperature control system of the battery module and even causing erroneous data collection. In addition, welding between the battery cell and the busbar is not conducive to the later maintenance of the battery module. Utility Model Content

[0004] The embodiment of the utility model provides a confluence device and a battery module. The confluence device can meet the electrical connection requirements between battery cells, ensure the reliability of data collection of the temperature control system of the battery module, and facilitate the later maintenance work of the battery module.

[0005] On the one hand, according to an embodiment of the utility model, a bus device is proposed for electrically connecting to a battery cell, the battery cell including an electrode terminal, the bus device including: an isolation plate having a plurality of spaced-apart mounting positions; a bus bar, each mounting position is respectively provided with a bus bar, the bus bar is connected to the isolation plate, a matching groove is provided on the bus bar, the matching groove is recessed from one side of the bus bar in the thickness direction of the isolation plate to the other side, the wall portion enclosing the matching groove includes a bottom wall and a side wall, an elastic matching portion is provided on the side wall, the electrode terminal can extend into the matching groove and interference fit with the elastic matching portion to be electrically connected to the bus bar.

[0006] According to one aspect of the embodiment of the utility model, the elastic matching portion includes a plurality of elastic grooves arranged on the side wall, and the elastic grooves are recessed from a side of the side wall facing the matching groove to a side away from the matching groove.

[0007] According to one aspect of the embodiment of the utility model, the elastic matching portion includes an elastic conductor arranged on the side wall, and the length of the elastic conductor extending into the matching groove is adjustable.

[0008] According to one aspect of the embodiment of the utility model, the number of the matching grooves arranged on each busbar is more than two and they are arranged at intervals from each other, and each matching groove is configured to accommodate an electrode terminal of one of the battery cells.

[0009] According to one aspect of the embodiments of the present utility model, the busbar device further includes an abutting component. The abutting component is arranged in the fitting groove, connected to the bottom wall, and the size of the abutting component in the thickness direction is adjustable.

[0010] According to one aspect of the embodiments of the present utility model, a plurality of abutting components are respectively arranged in each fitting groove, and the plurality of abutting components are arranged at intervals from each other.

[0011] According to one aspect of the embodiments of the present utility model, the abutting component includes a contact piece and an elastic body. The elastic body is electrically connected between the contact piece and the bottom wall, and the elastic body is telescopically arranged in the thickness direction.

[0012] According to one aspect of the embodiments of the present utility model, the busbar device further includes a data sampling device arranged on the isolation plate. A connecting wire is also arranged on the isolation plate corresponding to the data sampling device. The data sampling device is electrically connected to the connecting wire and at least one busbar respectively.

[0013] According to one aspect of the embodiments of the present utility model, the installation position includes an installation groove arranged on the isolation plate. The installation groove starts from one side of the isolation plate in its own thickness direction and is recessed along the thickness direction. The busbar is embedded in the installation groove and connected to the isolation plate.

[0014] According to one aspect of the embodiments of the present utility model, the installation position includes a clamping protrusion arranged on the isolation plate. A clamping groove matching the shape of the clamping protrusion is arranged on the busbar. The busbar is clamped and matched with the clamping protrusion through the clamping groove.

[0015] In another aspect, according to the embodiments of the present utility model, a battery module is provided, including: a plurality of battery cells, each battery cell including an electrode terminal; the above-mentioned busbar device, the electrode terminal of each battery cell extends into the fitting groove of one of the busbars and is in interference fit with the elastic fitting part, and the electrode terminal is electrically connected to the busbar.

[0016] The busbar device and the battery module provided by an embodiment of the present application. The busbar device includes an isolation plate and busbars. A plurality of spaced installation positions arranged on the isolation plate are used for installing the busbars. Through the isolation plate, a plurality of isolation plates can be integrated and the relative positions of each other can be fixed. By arranging fitting grooves on the busbars and arranging elastic fitting parts on the side walls of the fitting grooves, when the busbars are electrically connected to the electrode terminals of the battery cells, the electrode terminals can extend into the fitting grooves and be in interference fit with the elastic fitting parts, so that the electrical connection stability between the busbars and the electrode terminals can be realized without welding, and interference to the temperature control system of the battery module and even incorrect data acquisition can be avoided, and at the same time, the later maintenance work of the battery module is facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The features, advantages, and technical effects of exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic structural diagram of a battery module provided by an embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram of the cooperation between a busbar and a battery cell according to an embodiment of the present application;

[0020] Figure 3 It is a schematic structural diagram of a busbar device provided by an embodiment of the present utility model;

[0021] Figure 4 It is a schematic structural diagram of a separator of the busbar device provided by an embodiment of the present utility model;

[0022] Figure 5 It is a schematic structural diagram of a busbar provided by an embodiment of the present utility model;

[0023] Figure 6 It is a schematic structural diagram of a busbar provided by another embodiment of the present utility model;

[0024] Figure 7 It is a schematic structural diagram of a busbar device provided by another embodiment of the present utility model;

[0025] Figure 8 It is a schematic structural diagram of a busbar provided by yet another embodiment of the present utility model;

[0026] Figure 9 It is a schematic structural diagram of a busbar device provided by still another embodiment of the present utility model;

[0027] Figure 10 It is a partial cross-sectional view of the cooperation between a busbar and a battery cell according to an embodiment of the present application.

[0028] Reference numerals:

[0029] 100, busbar device;

[0030] 10, separator; 11, mounting position; 111, mounting groove;

[0031] 20, busbar; 21, mating groove; 211, bottom wall; 212, side wall; 22, elastic mating portion; 221, elastic card slot;

[0032] 30, abutting assembly; 31, contact piece; 32, elastic body;

[0033] 40, data sampling device;

[0034] 200, battery cell; 210, electrode terminal;

[0035] X, thickness direction.

[0036] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to scale. Detailed Description of the Invention

[0037] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by showing examples of the present invention. In the drawings and the following description, at least some of the well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention; and, for clarity, the dimensions of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0038] The directional terms used in the following description are the directions shown in the drawings, and do not limit the specific structures of the busbar device and the battery module of the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "mounted" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] With the rapid development of lithium-ion battery technology, the rapid integration of lithium batteries has become a key technology in many fields, especially in the fields of electric vehicles and renewable energy storage systems.

[0040] During the grouping process of the battery module, multiple battery cells need to be connected to the busbar to meet the series or parallel connection requirements between the battery cells and the connection requirements with external sampling devices and the like. The battery cells and the busbar are often connected by welding. However, the process quality of welding has a direct impact on the performance of the battery module. Welding may generate a large thermal resistance, resulting in local high temperature, interfering with the temperature control system of the battery module and even causing incorrect data acquisition. Moreover, welding the battery cells and the busbar is not conducive to the later maintenance work of the battery module.

[0041] Based on this, as Figures 1 to 5As shown in the figure, an embodiment of the present application provides a new battery module 1. The battery module 1 includes battery cells 200 and a busbar device 100. The number of battery cells 200 is multiple, and each battery cell 200 includes an electrode terminal 210. The electrode terminals 210 of the battery cells 200 are connected to the busbar device 100.

[0042] As Figures 2 to 4 As shown in the figure, in some alternative embodiments, an embodiment of the present application further provides a busbar device 100. The busbar device 100 can be produced and sold as an independent product. Of course, it can also be used in the battery module 1 provided in the above embodiment and serve as a component of the battery module 1.

[0043] The busbar device 100 provided by an embodiment of the present application includes a separator 10 and a busbar 20. The separator 10 has a plurality of mounting positions 11 distributed at intervals. Each mounting position 11 is respectively provided with a busbar 20. The busbar 20 is connected to the separator 10. A mating groove 21 is provided on the busbar 20. The mating groove 21 is recessed from one side to the other side of the separator 10 in the thickness direction X of the separator 10. The wall portion enclosing the mating groove 21 includes a bottom wall 211 and a side wall 212. An elastic mating portion 22 is provided on the side wall 212. The electrode terminal 210 can extend into the mating groove 21 and be in interference fit with the elastic mating portion 22 to be electrically connected to the busbar 20.

[0044] The separator 10 can be made of an insulating material. The mounting positions 11 on the separator 10 can be in at least one of the forms of a groove, a protrusion, and a connection hole. The busbar 20 on each mounting position 11 and the separator 10 can be connected by means of interference fit by insertion, snap fit, connection by fasteners, bonding, etc.

[0045] The number of mounting positions 11 provided on the separator 10 can be two, three, or more. The multiple mounting positions 11 can be distributed according to a predetermined pattern, for example, distributed successively in the same direction. Of course, in some embodiments, the multiple mounting positions 11 can also be distributed in rows or columns, or in an array.

[0046] The depth of the recess of the mating groove 21 along the thickness direction X of the separator 10 is less than the thickness of the busbar 20 in the thickness direction X.

[0047] The number of mating grooves 21 provided on each busbar 20 can be one, or more than two, for example, two, three, or more. Specifically, it can be determined according to the length of the busbar 20 and the number of battery cells 200 to be connected in series or parallel.

[0048] The elastic mating portion 22 includes, but is not limited to, at least one of an elastic card slot 221 provided on the side wall 212 and an elastic conductor.

[0049] When the busbar device 100 is used in a battery module, the electrode terminal 210 of each battery cell 200 of the plurality of battery cells 200 extends into the matching groove 21 of one of the busbars 20 and is interference-fitted with the elastic matching portion 22 , and the electrode terminal 210 is electrically connected to the busbar 20 .

[0050] A busbar device 100 provided in one embodiment of the present application includes an isolation plate 10 and a busbar 20. A plurality of installation positions 11 arranged at intervals on the isolation plate 10 are used to install the busbar 20. The plurality of isolation plates 10 can be integrated and fixed through the isolation plate 10. By providing a matching groove 21 on the busbar 20 and providing an elastic matching portion 22 on the side wall 212 of the matching groove 21, when the busbar 20 is matched with the electrode terminal 210 of the battery cell 200, the electrode terminal 210 can extend into the matching groove 21 and have an interference fit with the elastic matching portion 22. The electrical connection between the busbar 20 and the electrode terminal 210 can be stable without welding, and interference with the temperature control system of the battery module 1 or even erroneous data collection can be avoided, and the later maintenance of the battery module 1 is facilitated.

[0051] In some optional embodiments, in a confluence device 100 provided by an embodiment of the present application, the elastic fitting portion 22 includes a plurality of elastic slots 221 arranged on the side wall 212 , and the elastic slots 221 are recessed from a side of the side wall 212 toward the fitting slot 21 toward a side away from the fitting slot 21 .

[0052] The orthographic projection of the side wall 212 in the thickness direction X may be a polygon, for example, a quadrilateral, a pentagon, a hexagon, etc., and may be a quadrilateral.

[0053] The plurality of elastic slots 221 are sequentially distributed on the polygonal annular track of the side wall 212 , and a protrusion is formed between two adjacent elastic slots 221 .

[0054] The busbar device 100 provided in one embodiment of the present application, through the above-mentioned arrangement, is conducive to arranging the electrode terminal 210 of the battery cell 200 in the matching groove 21 and having an interference fit with the protrusion formed by multiple elastic card grooves 221. The structural form of the concave and convex surface can increase the contact area with the electrode terminal 210, which is conducive to achieving an interference fit between the battery cell 200 and the busbar 20.

[0055] It is understandable that the elastic fitting portion 22 is not limited to including the elastic slot 221. In some embodiments, the elastic fitting portion 22 may also include an elastic conductor disposed on the side wall 212, and the length of the elastic conductor extending into the fitting slot 21 is adjustable.

[0056] The elastic conductor may include an elastic body 32 having a conductive metal. For example, a metal conductive wire or a metal spring may be arranged in a rubber body.

[0057] In one embodiment of the present application, the busbar device 100 provided can, through the above settings, also satisfy the requirement that the electrode terminals 210 of the battery cells 200 are disposed in the fitting grooves 21 and are in interference fit with the elastic fitting portions 22. The length of the elastic conductor extending into the fitting grooves 21 is adjustable, which is conducive to realizing the interference fit between the battery cells and the busbar 20.

[0058] As Figures 3 to 5 shown, in some alternative embodiments, in the busbar device 100 provided in one embodiment of the present application, the number of fitting grooves 21 provided on each busbar 20 is two or more and they are spaced apart from each other. Each fitting groove 21 is configured to accommodate the electrode terminal 210 of one of the battery cells 200.

[0059] The number of fitting grooves 21 provided on each busbar 20 can be two, three or more.

[0060] In one embodiment of the present application, by providing two or more fitting grooves 21 on one busbar 20, it is ensured that one busbar 20 can be electrically connected to the electrode terminals 210 of two or more battery cells 200 simultaneously, realizing the electrical connection of two or more battery cells 200 through one busbar 20. At the same time, data can be collected using the same data sampling structure, which can adapt to the arrangement requirements of the battery cells 200 in different battery modules.

[0061] As Figure 6 shown, Figure 6 FIG. is a schematic structural diagram of a busbar provided in another embodiment of the present utility model.

[0062] In some alternative embodiments, in the busbar device 100 provided in one embodiment of the present application, the busbar device 100 further includes an abutting component 30. An abutting component 30 is disposed in the fitting groove 21. The abutting component 30 is connected to the bottom wall 211, and the size of the abutting component 30 in the thickness direction X is adjustable.

[0063] The provided abutting component 30 can be made of a conductive material body. The number of abutting components 30 can be one or two or more. When there are two or more, the two or more abutting components 30 can be spaced apart from each other in the fitting groove 21.

[0064] The abutting component 30 can be an elastic conductor. Of course, it can also be a structure such as a telescopic metal part.

[0065] In an embodiment of the present application, the busbar device 100 includes a contact component 30, which can press the contact position with the electrode terminal 210 through the contact component 30, ensuring the current-carrying area between the electrode terminal 210 and the busbar 20 and meeting the overcurrent requirements between the battery cell 200 and the busbar 20.

[0066] In some alternative embodiments, for the busbar device 100 provided by an embodiment of the present application, a plurality of contact components 30 are respectively arranged in each fitting groove 21, and the plurality of contact components 30 are spaced apart from each other.

[0067] The number of the contact components 30 can be two, three or more. The structural forms of the contact components 30 can be the same.

[0068] For the busbar device 100 provided by an embodiment of the present application, by arranging a plurality of contact components 30 in each fitting groove 21, the contact area between the electrode terminal 210 of the battery cell 200 and the busbar 20 can be effectively increased, effectively meeting the overcurrent requirements between the battery cell 200 and the busbar 20.

[0069] Continue to refer to Figure 6 As shown, in some alternative embodiments, for the busbar device 100 provided by an embodiment of the present application, the contact component 30 includes a contact piece 31 and an elastic body 32. The elastic body 32 is electrically connected between the contact piece 31 and the bottom wall 211, and the elastic body 32 is telescopically arranged in the thickness direction X.

[0070] The contact piece 31 can be made of a metal sheet, and optionally, a copper sheet or an aluminum sheet can be used.

[0071] The elastic body 32 includes, but is not limited to, structural bodies such as rubber blocks and springs.

[0072] For the busbar device 100 provided by an embodiment of the present application, the contact component 30 adopts the above form, with a simple structure, which can not only ensure close contact with the electrode terminal 210 of the battery cell 200 but also meet the requirements for the overcurrent contact area.

[0073] It should be noted that Figure 6 shows that the busbar 20 includes two fitting grooves 21. The structural forms in the two fitting grooves 21 can be the same or substantially the same. Substantially the same can be understood as that the structural forms of the newly added contact components 30 can be the same, and there may be differences in quantity. In order to clearly show the structural form of the contact components 30, Figure 6 the component parts of the contact components 30 in one of the fitting grooves 21 are hidden.

[0074] Continue to refer to Figures 2 to 6As shown, in some alternative embodiments, the busbar device 100 provided by an embodiment of the present application further includes a data sampling device 40 disposed on the isolation plate 10. A connection line is also provided on the isolation plate 10 corresponding to the data sampling device 40. The connection lines of the respective data sampling devices 40 are arranged in an independent form. Each data sampling device 40 can only be electrically connected to the corresponding busbar 20 to collect temperature, electrical information, etc. on the corresponding busbar 20. Optionally, the data sampling devices (40) can be electrically connected to at least one busbar 20 through connection lines respectively, so that one data sampling device 40 can collect temperature, electrical information, etc. on multiple busbars 20.

[0075] The data sampling device 40 is configured to collect at least one of parameters such as temperature information, current information, and voltage information of the battery cell 200.

[0076] Continue to refer to Figures 2 to 6 As shown, in some alternative embodiments, for the busbar device 100 provided by an embodiment of the present application, the installation position 11 includes an installation groove 111 disposed on the isolation plate 10. The installation groove 111 starts from one side of the isolation plate 10 in its own thickness direction X and is recessed along the thickness direction X. The busbar 20 is embedded in the installation groove 111 and connected to the isolation plate 10.

[0077] The shape of the installation groove 111 can match the shape of the busbar 20. The depth of the installation groove 111 along the thickness direction X can be less than the depth of the isolation plate 10. Of course, the installation groove 111 can be arranged to penetrate the isolation plate 10 along the thickness direction X.

[0078] For the busbar device 100 provided by an embodiment of the present application, by making the installation position 11 include the installation groove 111 disposed on the isolation plate 10, it is convenient for the installation and positioning of each busbar 20 and the busbar 20 is limited by the groove wall of the installation groove 111. Moreover, the arrangement of the installation groove 111 and the embedding of the busbar 20 in the installation groove 111 can reduce the height dimension of the overall busbar device 100 in the thickness direction X, so that when the busbar device 100 is used in the battery module 1, the overall energy density of the battery module 1 can be improved.

[0079] It can be understood that for the busbar device 100 provided by an embodiment of the present application, the installation position 11 is not limited to including the installation groove 111 provided in the above embodiments. In some embodiments, the installation position 11 can also include a clamping protrusion disposed on the isolation plate 10, and a clamping groove matching the shape of the clamping protrusion is provided on the busbar 20. The busbar 20 is clamped and matched with the clamping protrusion through the clamping groove. Through the above arrangement, the installation of the busbar 20 on the isolation plate 10 and the connection and positioning requirements between the busbar 20 and the isolation plate 10 can be ensured as well.

[0080] It can be understood that, in the above embodiments of the present application, the bus bar 20 including two mating grooves 21 is taken as an example for illustration, which is an optional implementation manner.

[0081] As Figure 7 , Figure 8 shown, in some embodiments, each bus bar 20 can also include one mating groove 21, which can also meet the functional requirements of the bus bar device.

[0082] It can be understood that, in the above embodiments of the present application, the structure forms of the bus bars 20 included in the bus bar device 100 are the same as an example for illustration, which is an optional implementation manner.

[0083] As Figure 9 shown, in some embodiments, at least two of the multiple bus bars 20 included in the bus bar device 100 can also have different structure forms. For example, at least one of the bus bars can include one mating groove 21, and at least one bus bar 20 can include two or more mating grooves 21, etc. That is to say, the number of mating grooves 21 included in at least two of the bus bars 20 included can have a difference.

[0084] As shown in 1, Figure 2 and Figure 10 shown, on the other hand, an embodiment of the present application also provides a battery module, including a plurality of battery cells 200 and the bus bar device 100 provided in the above embodiments. The electrode terminal 210 of each battery cell 200 extends into the mating groove 21 of one of the bus bars 20 and is in interference fit with the elastic mating portion 22, and the electrode terminal 210 is electrically connected to the bus bar 20. When the bus bar device 100 includes the abutting assembly 30, its contact piece 31 can be closely attached to the electrode terminal 210 of the battery cell 200 by the force applied by the elastic body 32, meeting the requirement of the over-current contact area.

[0085] The battery module provided by an embodiment of the present application, due to including the bus bar device 100 provided in the above embodiments, can realize the non-welded connection between the battery cell 200 and the bus bar 20, reduce the safety risk of the battery module 1, avoid problems such as local overheating of the battery cell 200 caused by welding, and can realize the rapid assembly of the battery module 1, which is simple and convenient, greatly improving the assembly efficiency. At the same time, the bus bar device 100 can also facilitate the later maintenance work of the battery module 1 and reduce the maintenance cost.

[0086] Although the present utility model has been described with reference to the preferred embodiments, various modifications thereof can be made and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any manner. The present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A busbar device, used for electrically connecting to a battery cell (200), wherein the battery cell (200) comprises an electrode terminal (210), characterized in that: The confluence device (100) comprises: The isolation plate (10) has a plurality of installation positions (11) distributed at intervals; A busbar (20), each of the mounting positions (11) is respectively provided with the busbar (20), the busbar (20) is connected to the isolation plate (10), a matching groove (21) is provided on the busbar (20), the matching groove (21) is recessed from one side of the busbar (20) to the other side in the thickness direction (X) of the isolation plate (10), the wall portion enclosing the matching groove (21) includes a bottom wall (211) and a side wall (212), an elastic matching portion (22) is provided on the side wall (212), the electrode terminal (210) can extend into the matching groove (21) and be interference-fitted with the elastic matching portion (22) to be electrically connected to the busbar (20).

2. The confluence device according to claim 1, characterized in that: The elastic matching portion (22) comprises a plurality of elastic slots (221) arranged on the side wall (212), and the elastic slots (221) are recessed from a side of the side wall (212) facing the matching slot (21) to a side facing away from the matching slot (21).

3. The confluence device according to claim 1, characterized in that: The elastic matching portion (22) comprises an elastic conductor arranged on the side wall (212), and the length of the elastic conductor extending into the matching groove (21) is adjustable.

4. The confluence device according to claim 1, characterized in that: The number of the matching grooves (21) provided on each busbar (20) is more than two and they are arranged at intervals from each other, and each matching groove (21) is configured to accommodate the electrode terminal (210) of one of the battery cells (200).

5. The confluence device according to any one of claims 1 to 4, characterized in that: The confluence device (100) further comprises an abutment assembly (30), the abutment assembly (30) being arranged in the matching groove (21), the abutment assembly (30) being connected to the bottom wall (211), and the size of the abutment assembly (30) in the thickness direction (X) being adjustable.

6. The confluence device according to claim 5, characterized in that: A plurality of the abutment components (30) are respectively arranged in each of the matching grooves (21), and the plurality of the abutment components (30) are arranged at intervals from each other.

7. The confluence device according to claim 5, characterized in that: The abutment assembly (30) comprises a contact piece (31) and an elastic body (32); the elastic body (32) is electrically connected between the contact piece (31) and the bottom wall (211); and the elastic body (32) is telescopically arranged in the thickness direction (X).

8. The confluence device according to any one of claims 1 to 4, characterized in that: The busbar device (100) further comprises a data sampling device (40) arranged on the isolation plate (10); a connecting wire is further arranged on the isolation plate (10) corresponding to the data sampling device (40); the data sampling device (40) is respectively electrically connected to the connecting wire and at least one of the busbars (20).

9. The confluence device according to any one of claims 1 to 4, characterized in that: The mounting position (11) comprises a mounting groove (111) arranged on the isolation plate (10), the mounting groove (111) starting from one side of the isolation plate (10) in its own thickness direction (X) and recessed along the thickness direction (X), the busbar (20) being embedded in the mounting groove (111) and connected to the isolation plate (10); And / or, the mounting position (11) comprises a snap-fitting protrusion arranged on the isolation plate (10), and the bus (20) is provided with a slot matching the shape of the snap-fitting protrusion, and the bus (20) is snap-fitted with the snap-fitting protrusion via the slot.

10. A battery module, characterized in that: include: A battery cell (200), wherein the number of the battery cells (200) is plural, and each of the battery cells (200) comprises an electrode terminal (210); According to the busbar device (100) as claimed in any one of claims 1 to 9, the electrode terminal (210) of each of the battery cells (200) extends into the matching groove (21) of one of the busbars (20) and is interference-fitted with the elastic matching portion (22), and the electrode terminal (210) is electrically connected to the busbar (20).

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