Convergence integrated structure of battery module

Abstract

The utility model relates to a confluence integrated structure of a battery module. Relates to the technical field of new energy batteries. The battery pack specifically comprises a plurality of single battery cells, a convergence plate for converging positive electrodes and negative electrodes of the plurality of single battery cells, a connecting piece for fixedly connecting the plurality of single battery cells with the convergence plate, and an integrated circuit arranged on the convergence plate, wherein the integrated circuit is used for leading out the positive electrodes and the negative electrodes after convergence of the plurality of single battery cells. According to the battery module disclosed by the utility model, the positive electrodes and the negative electrodes of the plurality of single battery cells are converged by the converging plate, and the converging plate is connected with the plurality of single battery cells through the connecting pieces, so that the welding procedures in the converging and integrating process of the battery module are reduced, the use of welding equipment is reduced, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy batteries, in particular to a busbar integration structure of a battery module. Background Art

[0002] In recent years, with the popularization and development of new energy vehicles, as a core component of new energy vehicles, the technology of power batteries has been continuously updated, and the battery-packaging technology is an important direction among them. A battery module is an integration of multiple single cells, generally composed of several or even dozens of cells connected in series and parallel, and the aggregated positive and negative electrodes are led out. Generally, for the electrical connection between cells in a battery module, connection pieces are arranged on the cell poles, the connection pieces are welded to the cells and connected to the busbar by laser welding to achieve the series / parallel connection between cells to form a power supply circuit. However, through the above method for the busbar integration between multiple cells, multiple welding processes are required, which not only requires adding welding equipment, thus increasing the production cost, but also reduces the production efficiency.

[0003] Chinese Patent CN207572448U, published on December 8, 2017, discloses a battery module and a battery module system. The battery module includes: a first fixing component, a second fixing component, a busbar component, a connection component, and multiple batteries. Each battery is arranged in parallel and is in contact with each other to form a stacked structure, and the stacked structure is arranged on the connection component. The first fixing component is arranged at one end of the connection component and is in contact with one end of the stacked structure. The second fixing component is arranged at the end of the connection component away from the first fixing component and is in contact with the end of the stacked structure away from the first fixing component. The busbar component is arranged on the first side surface of the stacked structure and is electrically connected to each battery. The busbar component is electrically connected to the first fixing component and the second fixing component respectively. This battery module can avoid battery short circuit caused by incorrect installation positions of the busbar component and the batteries during the assembly process, improving the safety of the battery module. However, the busbar component of this battery module is connected to multiple batteries through multiple welding methods, which not only increases the production cost but also reduces the production efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a busbar integration structure of a battery module, aiming at the deficiencies of the above-mentioned existing technologies, which can reduce the welding process during the busbar integration of the battery module, thereby reducing the production cost and improving the production efficiency.

[0005] The present utility model provides a busbar integration structure for a battery module, which includes a plurality of single cells, a busbar for busbar connection of the positive and negative electrodes of the plurality of single cells, a connecting member for fixedly connecting the plurality of single cells to the busbar, and an integrated circuit provided on the busbar, wherein the integrated circuit is used to lead out the positive and negative electrodes after busbar connection of the plurality of single cells.

[0006] Further, the single cell includes a cell housing, a positive electrode post provided on the cell housing, and a negative electrode post provided on the cell housing. The positive electrode post is used to lead out the positive electrode of the single cell, and the negative electrode post is used to lead out the negative electrode of the single cell.

[0007] Further, the busbar is connected to the positive electrode post and the negative electrode post for busbar connection of the positive and negative electrodes of the plurality of single cells.

[0008] Further, riveting holes are provided on the positive electrode post and the negative electrode post, and a plurality of first through holes are provided on the busbar. The connecting member is a plurality of rivets, one end of which passes through one of the first through holes and is riveted to one of the riveting holes.

[0009] Further, the riveting hole includes a guiding groove for the rivet to pass through and a limiting groove for cooperating with the rivet. The limiting groove is provided at the bottom of the guiding groove, and the top of the guiding groove communicates with the outside and the bottom communicates with the limiting groove.

[0010] Further, the busbar integration structure further includes an elastic current guiding member provided on the busbar. When the busbar is connected to the single cell, the elastic current guiding member abuts against the single cell for current guiding.

[0011] Further, a plurality of the elastic current guiding members are provided at the bottom of the busbar. When the busbar is connected to the plurality of single cells, the plurality of elastic current guiding members respectively abut against the plurality of single cells for current guiding.

[0012] Further, the elastic current guiding member includes a current guiding piece located below the busbar and a current guiding spring with one end connected to the busbar and the other end connected to the current guiding piece. When the busbar is connected to the plurality of single cells, the current guiding spring is compressed and the current guiding piece abuts against the single cell.

[0013] Further, a second through hole is provided on the current guiding piece, and the central axes of the second through hole and the corresponding first through hole are on the same straight line. One end of the rivet passes through one of the first through holes, one of the current guiding springs and one of the second through holes in sequence and is then riveted to one of the riveting holes, and the current guiding piece abuts against the positive electrode post or the negative electrode post.

[0014] Furthermore, a limiting guide sleeve extending outward is provided on the guide piece, and when the guide piece abuts against the positive electrode column or the negative electrode column, the limiting guide sleeve is sleeved on the outside of the positive electrode column or the negative electrode column.

[0015] The utility model provides a battery module converging integrated structure with the following gain effects:

[0016] (1) The busbar of the busbar integration structure is used to connect the positive and negative electrodes of multiple single cells by connecting the busbar to the multiple single cells through a connector, thereby reducing the welding process in the battery module busbar integration process, reducing the use of welding equipment, reducing production costs, and improving production efficiency;

[0017] (2) The connector of the integrated busbar structure connects the busbar to the positive and negative poles of multiple battery cells, so that the busbar is in contact with the positive and negative poles of multiple battery cells at the same time, thereby realizing the convergence of the positive and negative poles of multiple battery cells through the conduction of the busbar;

[0018] (3) The positive pole and negative pole of the integrated busbar structure are provided with rivet holes, the busbar is provided with a first through hole, and the connecting pieces are multiple rivets. After one end of the rivet passes through the first through hole, it is riveted to the rivet hole on the positive pole or the negative pole to fix the multiple single cells to the busbar. In this process, welding is not required, thereby reducing the use of welding equipment and reducing production costs. Compared with welding, riveting is simpler and more convenient, saving time and effort, thereby improving production efficiency.

[0019] (4) The riveting hole of the integrated busbar structure includes a guide groove and a limit groove. The top of the guide groove is connected to the outside, and the limit groove is arranged at the bottom of the guide groove and is connected to the bottom of the guide groove. After one end of the rivet passes through the first through hole, it extends into the limit groove through the guide groove, so that the end of the rivet extending into the limit groove is expanded and stretched after being subjected to force, so that the tail end of the rivet is limited by the limit groove and the expanded rivet end, thereby realizing the fixed connection between the busbar and the single cell;

[0020] (5) The integrated busbar structure also includes an elastic flow guide, which is arranged on the busbar. When the busbar is connected to the positive and negative poles of a plurality of single cells, the elastic flow guide abuts against the single cells. The elastic flow guide guide is used to guide the current, which not only enables the busbar to be connected to the positive and negative poles of the single cells, but also reduces the contact impedance between the busbar and the single cells.

[0021] (6) The flow guiding piece of this busbar integration structure extends downward to form a limiting flow guiding sleeve, which is sleeved with the positive pole column or the negative pole column through the limiting flow guiding sleeve. This not only makes the alignment of the flow guiding piece with the positive pole column or the negative pole column simpler and more convenient, easier to implement, thereby improving production efficiency, but also increases the contact area between the flow guiding piece and the positive pole column or the negative pole column, thus enhancing the current guiding ability of the elastic current guiding member. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings incorporated herein and constituting a part of this specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model. In these drawings, like reference numerals are used to represent like elements.

[0023] Figure 1 is an exploded view of a busbar integration structure of a battery module according to an embodiment of the present utility model;

[0024] Figure 2 is a schematic structural view of a single cell of a busbar integration structure of a battery module according to an embodiment of the present utility model;

[0025] Figure 3 is a schematic cross-sectional view of a busbar of a busbar integration structure of a battery module according to an embodiment of the present utility model fixedly connected to a positive pole column;

[0026] Figure 4 is a schematic partial structural view of an elastic current guiding member of a busbar integration structure of a battery module according to an embodiment of the present utility model disposed on the busbar.

[0027] In the figures: 1, single cell; 11, cell housing; 12, positive pole column; 121, riveting hole; 1211, guiding groove; 1212, limiting groove; 13, negative pole column; 2, busbar; 21, first through hole; 3, rivet; 4, elastic current guiding member; 41, flow guiding piece; 411, second through hole; 412, limiting flow guiding sleeve; 42, current guiding spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0029] Please refer to Figures 1 to 4, A busbar integration structure of a battery module according to an embodiment of the present utility model includes a plurality of single cells 1, a busbar 2 for busbar connection of the positive and negative electrodes of the plurality of single cells 1, a connecting member for fixedly connecting the plurality of single cells 1 to the busbar 2, and an integrated circuit provided on the busbar 2, and the integrated circuit is used to lead out the positive and negative electrodes after the busbar connection of the plurality of single cells 1.

[0030] In this application, the busbar integration structure includes a plurality of single cells 1, a busbar 2 and a connecting member. The busbar 2 is fixedly connected to the plurality of single cells 1 through the connecting member, so that the busbar 2 performs busbar connection on the positive and negative electrodes of the plurality of single cells 1; an integrated circuit is provided on the busbar 2, and the positive and negative electrodes after the busbar connection of the plurality of single cells 1 are led out through the integrated circuit, thereby realizing the busbar integration of the plurality of single cells 1 in the battery module.

[0031] Compared with the traditional battery module, multiple busbars are welded to the single cells 1, and the busbars are used to connect the positive and negative electrodes of the plurality of single cells 1 in series and parallel, thereby realizing the busbar connection of the positive and negative electrodes of the plurality of single cells 1. In this application, the busbar 2 performs busbar connection on the positive and negative electrodes of the plurality of single cells 1, which is realized by connecting the busbar 2 to the plurality of single cells 1 through the connecting member, thereby reducing the welding process in the busbar integration process of the battery module, reducing the use of welding equipment, lowering the production cost, and improving the production efficiency.

[0032] In this embodiment, the single cell 1 includes a cell housing 11, a positive electrode post 12 provided on the cell housing 11, and a negative electrode post 13 provided on the cell housing 11. The positive electrode post 12 is used to lead out the positive electrode of the single cell 1, and the negative electrode post 13 is used to lead out the negative electrode of the single cell 1. In this application, the single cell 1 includes a cell housing 11, a positive electrode post 12 and a negative electrode post 13. Both the positive electrode post 12 and the negative electrode post 13 are provided on the cell housing 11, so that the positive electrode of the single cell 1 is led out through the positive electrode post 12, and the negative electrode of the single cell 1 is led out through the negative electrode post 13.

[0033] Further, in this embodiment, when the positive electrode of the single cell 1 is led out through the positive electrode post 12 and the negative electrode is led out through the negative electrode post 13, the busbar 2 is connected to the positive electrode posts 12 and negative electrode posts 13 of the plurality of single cells 1 through the connecting member, so that the busbar 2 is in contact with the positive electrode posts 12 and negative electrode posts 13 of the plurality of single cells 1 at the same time, thereby realizing the busbar connection of the positive and negative electrodes of the plurality of single cells 1 through the current conduction of the busbar 2; then, through the integrated circuit provided on the busbar 2, the positive and negative electrodes after the busbar connection of the plurality of single cells 1 are led out, thereby realizing the busbar integration of the plurality of single cells 1 in the battery module; the integrated circuit is connected to the external circuit to realize the charging and discharging of the plurality of single cells 1 in the battery module.

[0034] Specifically, in this embodiment, riveting holes 121 are provided on the positive electrode post 12 and the negative electrode post 13. A plurality of first through holes 21 are provided on the bus bar 2, and the plurality of first through holes 21 on the bus bar 2 correspond one by one to the positive electrode post 12 and the negative electrode post 13 of the plurality of single cells 1 respectively.

[0035] The connecting pieces are a plurality of rivets 3. After one end of a rivet 3 passes through a first through hole 21 on the bus bar 2, it is riveted to the riveting hole 121 on the positive electrode post 12 of the single cell 1, so as to fixedly connect the positive electrode post 12 of the single cell 1 with the bus bar 2; after one end of another rivet 3 passes through another first through hole 21 on the bus bar 2, it is riveted to the riveting hole 121 on the negative electrode post 13 of the single cell 1, so as to fixedly connect the negative electrode post 13 of the single cell 1 with the bus bar 2, thereby realizing the fixed connection between the single cell 1 and the bus bar 2.

[0036] And so on. Through a plurality of rivets 3, a plurality of single cells 1 can be simultaneously fixedly connected to the bus bar 2, so that the bus bar 2 can conduct the positive and negative electrodes of the plurality of single cells 1. Then, the positive and negative electrodes after the plurality of single cells 1 are conducted are led out by the integrated circuit provided on the bus bar 2, thereby realizing the current collection integration of the plurality of single cells 1 in the battery module.

[0037] The rivets 3 are usually made of metal materials. In this application, after one end of a rivet 3 passes through the first through hole 21 on the bus bar 2, it is riveted to the riveting hole 121 on the positive electrode post 12 or the negative electrode post 13 of the single cell 1. Therefore, when the single cell 1 is charged and discharged through the positive electrode post 12 and the negative electrode post 13, the metal rivets 3 have the ability to conduct electricity. Therefore, it can be foreseen that: in the actual production of the battery module, it is necessary to insulate the nuts of the rivets 3 exposed on the bus bar 2 to prevent them from conducting electricity and affecting the use of this current collection integration structure.

[0038] In this application, the fixed connection between the positive electrode posts 12 and the negative electrode posts 13 of the plurality of single cells 1 and the bus bar 2 is carried out by means of riveting. Compared with the traditional battery module, in which a plurality of bus bars are connected to the single cells 1 by welding, and the bus bars connect the positive and negative electrodes of the plurality of single cells 1 in series and parallel, in the current collection integration structure of this application, welding is not required, thereby reducing the use of welding equipment and lowering the production cost; and compared with welding, riveting is more simple and convenient to operate, saving time and effort, thereby improving the production efficiency.

[0039] In this embodiment, the riveting hole 121 includes a guiding groove 1211 for the rivet 3 to penetrate through, and a limiting groove 1212 that cooperates with the rivet 3. The limiting groove 1212 is provided at the bottom of the guiding groove 1211. The top of the guiding groove 1211 communicates with the outside, and the bottom of the guiding groove 1211 communicates with the limiting groove 1212. Since the rivet 3 is used to rivet the parts by utilizing its own deformation or interference fit, in this application, the riveting hole 121 includes the guiding groove 1211 and the limiting groove 1212. The top of the guiding groove 1211 communicates with the outside, the limiting groove 1212 is provided at the bottom of the guiding groove 1211, and communicates with the bottom of the guiding groove 1211.

[0040] It can be foreseen that: the cross-sectional area of the limiting groove 1212 is larger than that of the guiding groove 1211. After one end of the rivet 3 penetrates through the first through hole 21 of the bus bar 2, it extends into the limiting groove 1212 through the guiding groove 1211, and then the end of the rivet 3 extending into the limiting groove 1212 is forced to expand and open, so as to cooperate with the end of the expanded and opened rivet 3 through the limiting groove 1212 to limit the tail end of the rivet 3.

[0041] And a nut with a cross-sectional area larger than that of the first through hole 21 is provided at the head end of the rivet 3. The nut at the head end of the rivet 3 abuts against the bus bar 2 to limit the bus bar 2, so that the rivet 3 presses the bus bar 2 against the positive electrode post 12 or the negative electrode post 13 of the single cell 1, thereby realizing the fixed connection between the bus bar 2 and the single cell 1.

[0042] In this embodiment, the bus bar integration structure further includes an elastic current guiding member 4 provided on the bus bar 2. When the bus bar 2 is connected to the single cell 1, the elastic current guiding member 4 abuts against the single cell 1 for current guiding. In this application, the bus bar integration structure further includes the elastic current guiding member 4, and the elastic current guiding member 4 is provided on the bus bar 2.

[0043] When the bus bar 2 is connected to the positive electrode posts 12 and the negative electrode posts 13 of multiple single cells 1, the elastic current guiding member 4 abuts against the single cell 1. On the one hand, the elastic current guiding member 4 contacts the positive electrode posts 12 and the negative electrode posts 13 of the single cell 1 for current guiding, realizing the conduction between the bus bar 2 and the positive electrode posts 12 and the negative electrode posts 13 of the single cell 1, so as to realize the current collection of the positive and negative electrodes of the single cell 1 by the bus bar 2.

[0044] On the other hand, when the bus bar 2 is fixedly connected to the single cell 1, it is the elastic current guiding member 4 on the bus bar 2 that abuts against the single cell 1. Since the elastic current guiding member 4 has the ability of elastic deformation, the elastic current guiding member 4 can be closely attached to the single cell 1, thereby reducing the contact impedance between the elastic current guiding member 4 and the single cell 1, enhancing the current guiding ability of the elastic current guiding member 4, and further making the current collection effect of the bus bar 2 better.

[0045] In this embodiment, a plurality of elastic current guiding members 4 are provided at the bottom of the busbar 2. When the busbar 2 is fixedly connected to a plurality of single-cell batteries 1, the busbar 2 is in contact with the plurality of single-cell batteries 1 respectively through the plurality of elastic current guiding members 4, thereby enhancing the current guiding effect between the busbar 2 and the plurality of single-cell batteries 1 and ensuring the charging and discharging performance of the plurality of single-cell batteries 1.

[0046] In this embodiment, the elastic current guiding member 4 includes a current guiding piece 41 located below the busbar 2, and a current guiding spring 42 with one end connected to the busbar 2 and the other end connected to the current guiding piece 41. When the busbar 2 is connected to the positive electrode posts 12 and negative electrode posts 13 of the plurality of single-cell batteries 1, the current guiding spring 42 is compressed, and the current guiding piece 41 is in contact with the single-cell battery 1. In this application, the elastic current guiding member 4 includes a current guiding piece 41 and a current guiding spring 42. The current guiding piece 41 is arranged below the busbar 2, and one end of the current guiding spring 42 is connected to the busbar 2 and the other end is connected to the current guiding piece 41.

[0047] When the busbar 2 is fixedly connected to the positive electrode posts 12 and negative electrode posts 13 of the plurality of single-cell batteries 1, the current guiding spring 42 located between the current guiding piece 41 and the busbar 2 is compressed, so that the current guiding piece 41 is closely attached to the single-cell battery 1. Furthermore, through the current guiding of the current guiding piece 41 and the current guiding spring 42, the conduction between the busbar 2 and the positive electrode post 12 and negative electrode post 13 of the single-cell battery 1 is realized, and the current guiding effect between the busbar 2 and the plurality of single-cell batteries 1 is enhanced, ensuring the charging and discharging performance of the plurality of single-cell batteries 1.

[0048] As mentioned in the previous embodiment, a plurality of elastic current guiding members 4 are provided at the bottom of the busbar 2. The busbar 2 is in contact with the plurality of single-cell batteries 1 respectively through the plurality of elastic current guiding members 4 to conduct current between the busbar 2 and the plurality of single-cell batteries 1. Since the busbar 2 is electrically connected to the positive electrode posts 12 and negative electrode posts 13 of the plurality of single-cell batteries 1, the positive and negative electrodes of the plurality of single-cell batteries 1 are thus collected. Therefore, it can be predicted that: the plurality of elastic current guiding members 4 on the busbar 2 correspond to the positive electrode posts 12 and negative electrode posts 13 of each single-cell battery 1 respectively, that is, the positive electrode post 12 of each single-cell battery is electrically connected to the busbar 2 through an elastic current guiding member 4, and the negative electrode post 13 is electrically connected to the busbar 2 through another elastic current guiding member 4.

[0049] Specifically, in this embodiment, a second through hole 411 is provided on the current guiding piece 41, and the central axis of the second through hole 411 coincides with the central axis of the corresponding first through hole 21 on the busbar 2. Thus, after one end of a rivet 3 sequentially passes through the corresponding first through hole 21, the current guiding spring 42 and the second through hole 411, it cooperates with the riveting hole 121 on the positive electrode post 12 of the corresponding single-cell battery 1 to fixedly connect the busbar 2 to the positive electrode post 12 of the single-cell battery 1, and the current guiding piece 41 of the elastic current guiding member 4 is closely attached to the positive electrode post 12 of the single-cell battery 1, thereby realizing the conduction between the positive electrode post 12 of the single-cell battery 1 and the busbar 2.

[0050] One end of another rivet 3 sequentially passes through the corresponding first through-hole 21, the diversion spring 42, and the second through-hole 411, and then cooperates with the riveting hole 121 on the negative electrode post 13 of the corresponding single cell 1 to fixedly connect the bus bar 2 to the negative electrode post 13 of the single cell 1. Moreover, the diversion piece 41 of the elastic diversion member 4 is closely attached to the negative electrode post 13 of the single cell 1, thereby realizing the conduction between the negative electrode post 13 of the single cell 1 and the bus bar 2. By analogy, multiple single cells 1 can be fixedly connected to the bus bar 2 at the same time, and the positive electrode posts 12 and negative electrode posts 13 of the multiple single cells 1 are conducted with the bus bar 2, thereby realizing the current collection of the positive and negative electrodes of the multiple single cells 1 by the bus bar 2.

[0051] Since the positive electrode post 12 of the single cell 1 is usually made of aluminum material and the negative electrode post 13 is usually made of copper material, it can be foreseen that the elastic diversion member 4 for conducting the positive electrode post 12 of the single cell 1 with the bus bar 2 is also made of the same aluminum material as the positive electrode post 12, that is, the diversion spring 42 and the diversion piece 41 corresponding to the positive electrode post 12 of the single cell 1 are made of aluminum material; while the elastic diversion member 4 for conducting the positive electrode post 12 of the single cell 1 with the bus bar 2 is made of the same copper material as the negative electrode post 13, that is, the diversion spring 42 and the diversion piece 41 corresponding to the negative electrode post 13 of the single cell 1 are made of copper material.

[0052] As mentioned in the above embodiment, the fixed connection between the bus bar 2 and the positive electrode post 12 and the negative electrode post 13 of the single cell 1 is achieved by one end of the rivet 3 sequentially passing through the corresponding first through-hole 21, the diversion spring 42, and the second through-hole 411 and then cooperating with the riveting hole 121 on the corresponding positive electrode post 12 or negative electrode post 13 of the single cell 1. Therefore, when performing the riveting operation of the rivet 3, it is necessary to align the diversion piece 41 with the positive electrode post 12 to make the central axes of the first through-hole 21 and the second through-hole 411 coincide with the central axis of the riveting hole 121.

[0053] Therefore, in this embodiment, the diversion piece 41 extends downward with a limiting diversion sleeve 412. When fixedly connecting the bus bar 2 to the positive electrode post 12 or the negative electrode post 13 of the single cell 1, first sleeve the limiting diversion sleeve 412 extending below the diversion piece 41 onto the corresponding positive electrode post 12 or negative electrode post 13, so as to ensure that the central axes of the first through-hole 21 and the second through-hole 411 coincide with the central axis of the riveting hole 121. Furthermore, the alignment between the diversion piece 41 and the positive electrode post 12 or the negative electrode post 13 becomes simpler and more convenient, easier to implement, and further improves the production efficiency.

[0054] In addition, since the limiting flow guide sleeve 412 is a part extending from the flow guide piece 41 and is an integral structure with the flow guide piece 41, by sleeving the limiting flow guide sleeve 412 outside the positive electrode post 12 or the negative electrode post 13, the contact area between the flow guide piece 41 and the positive electrode post 12 or the negative electrode post 13 can be increased, thereby enhancing the current guiding ability of the elastic current guiding member 4 and ensuring the charge and discharge performance of the plurality of single cells 1.

[0055] The content described above can be implemented alone or in various combinations, and these variant ways are all within the protection scope of the present utility model.

[0056] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A busbar integration structure of a battery module, characterized in that: It includes a plurality of single cells (1), a busbar (2) for collecting the positive and negative electrodes of the plurality of single cells (1), a connecting member for fixedly connecting the plurality of single cells (1) to the busbar (2), and an integrated circuit provided on the busbar (2), and the integrated circuit is used to lead out the positive and negative electrodes after the collection of the plurality of single cells (1).

2. The busbar integration structure of a battery module as described in claim 1, characterized in that: The single cell (1) includes a cell housing (11), a positive electrode post (12) provided on the cell housing (11), and a negative electrode post (13) provided on the cell housing (11). The positive electrode post (12) is used to lead out the positive electrode of the single cell (1), and the negative electrode post (13) is used to lead out the negative electrode of the single cell (1).

3. The busbar integration structure of a battery module as described in claim 2, characterized in that: The busbar (2) is connected to the positive electrode post (12) and the negative electrode post (13) for collecting the positive and negative electrodes of the plurality of single cells (1).

4. A busbar integration structure of a battery module as described in claim 3, characterized in that: Riveting holes (121) are provided on the positive electrode post (12) and the negative electrode post (13), and a plurality of first through holes (21) are provided on the busbar (2). The connecting member is a plurality of rivets (3) that penetrate through one of the first through holes (21) at one end and are riveted to one of the riveting holes (121).

5. The busbar integration structure of a battery module as described in claim 4, characterized in that: The riveting hole (121) includes a guiding groove (1211) for the rivet (3) to penetrate through, and a limiting groove (1212) that cooperates with the rivet (3). The limiting groove (1212) is provided at the bottom of the guiding groove (1211). The top of the guiding groove (1211) communicates with the outside, and the bottom communicates with the limiting groove (1212).

6. The busbar integration structure of a battery module as described in claim 4, characterized in that: The busbar integration structure further includes an elastic current guiding member (4) provided on the busbar (2). When the busbar (2) is connected to the single cell (1), the elastic current guiding member (4) abuts against the single cell (1) for current guiding.

7. The busbar integration structure of a battery module as described in claim 6, characterized in that: A plurality of elastic current guiding members (4) are provided at the bottom of the busbar (2). When the busbar (2) is connected to the plurality of single cells (1), the plurality of elastic current guiding members (4) respectively abut against the plurality of single cells (1) for current guiding.

8. The busbar integration structure of a battery module as described in claim 7, characterized in that: The elastic current guiding member (4) includes a current guiding piece (41) located below the busbar (2), and a current guiding spring (42) with one end connected to the busbar (2) and the other end connected to the current guiding piece (41). When the busbar (2) is connected to the plurality of single cells (1), the current guiding spring (42) is compressed, and the current guiding piece (41) abuts against the single cell (1).

9. The busbar integration structure of a battery module as described in claim 8, characterized in that: A second through hole (411) is provided on the current guiding piece (41). The central axis of the second through hole (411) is on the same straight line as the central axis of the corresponding first through hole (21). One end of the rivet (3) sequentially penetrates through one of the first through holes (21), one of the current guiding springs (42), and one of the second through holes (411) and is then riveted to one of the riveting holes (121). The current guiding piece (41) abuts against the positive electrode post (12) or the negative electrode post (13).

10. A busbar integration structure of a battery module as described in claim 8, characterized in that: A limiting flow guide sleeve (412) extending outward is provided on the flow guide piece (41). When the flow guide piece (41) abuts against the positive electrode post (12) or the negative electrode post (13), the limiting flow guide sleeve (412) is sleeved on the outer side of the positive electrode post (12) or the negative electrode post (13).

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