Energy storage battery module CCS integrated structure

Abstract

The utility model discloses an energy storage battery module CCS integrated structure. The energy storage battery module CCS integrated structure comprises a base; the conductive mechanism is arranged on the base, and the conductive mechanism comprises a total positive bus bar, one bus bar assembly, a bridging bus bar, the other bus bar assembly and a total negative bus bar which are sequentially connected in series; each bus-bar assembly comprises a plurality of battery cell bus-bars which are arranged at intervals along the long side direction and are sequentially connected in series; the detection circuit is arranged between the two confluence assemblies in the short edge direction, and the conductive mechanism is connected with the detection circuit through a plurality of signal current acquisition nickel sheets; wherein each battery cell busbar comprises two arm parts and a connecting part between the two arm parts, the arm parts are connected with the positive electrodes of the battery cells, and the connecting part is connected with the negative electrodes of the battery cells, so that two adjacent battery cells are connected in parallel by one battery cell busbar. According to the structure of the utility model, the installation efficiency and the standardization level can be improved through the layout optimization design of the conductive mechanism.

Description

Technical Field

[0001] The utility model relates to an energy storage battery module CCS integrated structure, belonging to the technical field of energy storage batteries. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] With the rapid development of the new energy vehicle industry, the performance requirements for power batteries are getting higher and higher. As the core component of the power battery system, the battery module has attracted great attention for its safety, reliability, and energy density. In order to meet the use requirements of the battery, CCS components are generally used to electrically connect the battery. CCS components are generally installed on the top of the battery cell. CCS usually includes aluminum bars for conductivity.

[0004] However, because the arrangement of battery cells in each company is different, most manufacturers on the market use a single piece of aluminum bar directly welded to the battery cell to connect the battery cells in series. As a result, the welding quality of the battery cells cannot be guaranteed, and the spacing between the battery cells varies, making standardized production impossible. Alternatively, the layout of the CCS line structure of some mass-produced products is unreasonable, which can only partially improve the standardization level, but is not easy to install, which not only affects the assembly efficiency, but also poses a risk of electric shock to the installers.

[0005] Currently, there is no energy storage battery module CCS integrated structure that can solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an energy storage battery module CCS integrated structure, which can improve the installation efficiency and standardization level by optimizing the layout design of the conductive mechanism.

[0007] In order to achieve the above-mentioned object, the utility model discloses the following energy storage battery module CCS integrated structure, wherein the energy storage battery module CCS integrated structure comprises:

[0008] A base, wherein the base has a long side direction and a short side direction that are arranged to intersect each other;

[0009] A conductive mechanism, the conductive mechanism is arranged on the base, the conductive mechanism comprises a total positive bus, a total negative bus, a jumper bus, and two bus assemblies arranged at intervals along the short side direction, the total positive bus, one of the bus assemblies, the jumper bus, the other bus assembly, and the total negative bus are sequentially connected in series;

[0010] Each busbar assembly includes a plurality of cell busbars arranged at intervals along the long side direction and connected in series in sequence;

[0011] A detection circuit, wherein the detection circuit is arranged between the two current-collecting components along the short side direction, and the conductive mechanism is connected to the detection circuit through a plurality of signal current collection nickel sheets;

[0012] Among them, each of the battery cell bus includes two arms and a connecting portion between the two arms, wherein the two arms are respectively used to connect to the positive poles of two adjacent battery cells, and one connecting portion is used to simultaneously connect to the negative poles of two adjacent battery cells, so that one battery cell bus connects the two adjacent battery cells in parallel.

[0013] Furthermore, the base includes an inwardly concave first embedding groove, the first embedding groove includes an outwardly protruding mounting column, the conductive mechanism includes a mounting hole matching the size of the mounting column, and the size of the first embedding groove matches the conductive mechanism, so that the conductive mechanism is confined in the first embedding groove.

[0014] Furthermore, the total positive bus, the total negative bus, the jumper bus and the cell bus each include a plurality of mounting holes that match the size and position of the plurality of mounting posts.

[0015] Furthermore, the base also includes a second recessed groove, the second recess is arranged between the two confluence components, and the size of the second recess matches the detection circuit so that the detection circuit is limited in the second recess.

[0016] Furthermore, the second embedding groove is provided with a discharge hole facing the direction of the battery core.

[0017] Furthermore, the position of the discharge hole matches the position of the battery cell.

[0018] Furthermore, the arm portion extends along the long side direction, and the connecting portion extends along the short side direction.

[0019] Furthermore, each of the signal current collection nickel sheets is correspondingly connected to the total positive bus, the total negative bus, the jumper bus and the cell bus.

[0020] Furthermore, one end of the detection circuit comprises a signal output terminal connector, and the signal output terminal connector is arranged at an end of the detection circuit away from the battery cell bus.

[0021] The utility model also discloses an energy storage battery module, including a plurality of battery cells according to the CCS integrated structure of the energy storage battery module, wherein the arrangement positions of the plurality of battery cells match the conductive mechanism, wherein every two battery cells correspond to one of the battery cell buses.

[0022] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0023] The energy storage battery module CCS integrated structure of the utility model realizes the parallel connection of two cells by means of the combined structure of the arm and the connection part of the cell busbar, and can arrange the cell busbar along both sides of the base so that the jumper busbar at one adjacent end realizes the series connection of two busbar components, and the other end realizes the output of current by means of the total positive busbar and the total negative busbar. The overall current guidance organization is clear and reasonable, which is convenient for organizing the series connection of multiple pairs of parallel cells and easy for later installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a top view of a CCS integrated structure of an energy storage battery module provided in an embodiment of this specification;

[0026] Figure 2 This is a top view of a base of a CCS integrated structure of an energy storage battery module provided in an embodiment of this specification;

[0027] In the figure: 1. base; 11. long side direction; 12. short side direction; 13. first embedding groove; 131. mounting column; 14. second embedding groove; 141. discharge hole; 2. conductive mechanism; 21. total positive bus; 22. total negative bus; 23. jumper bus; 24. battery cell bus; 241. arm; 242. connection part; 3. detection circuit; 31. signal current collection nickel sheet; 32. signal output terminal connector. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0029] In the description of the present utility model, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following describes the implementation method of the present utility model based on its overall structure.

[0030] See also Figure 1-2 , is a CCS integrated structure of an energy storage battery module of this embodiment, which includes:

[0031] A base 1, wherein the base 1 has a long side direction 11 and a short side direction 12 that are intersectingly arranged;

[0032] The conductive mechanism 2 is arranged on the base 1, and the conductive mechanism 2 includes a total positive bus 21, a total negative bus 22, a jumper bus 23, and two bus assemblies arranged at intervals along the short side direction, and the total positive bus 21, one of the bus assemblies, the jumper bus 23, the other bus assembly, and the total negative bus 21 are connected in series in sequence;

[0033] Each bus assembly includes a plurality of cell bus bars 24 arranged at intervals along the long side direction 11 and connected in series in sequence;

[0034] A detection circuit 3, the detection circuit 3 is arranged between two busbar components along the short side direction 12, and the conductive mechanism 2 is connected to the detection circuit 3 through a plurality of signal current collection nickel sheets 31;

[0035] Among them, each battery cell bus 24 includes two arms 241 and a connecting portion 242 between the two arms 241, wherein the two arms 241 are respectively used to connect to the positive poles of two adjacent battery cells, and one connecting portion 242 is used to connect to the negative poles of two adjacent battery cells at the same time, so that one battery cell bus 24 connects two adjacent battery cells in parallel.

[0036] Through the above structure, the arm 241 on the battery bus 24 is connected to the positive electrodes of the two battery cells, the connecting portion 242 is connected to the negative electrodes of the other two battery cells, and the two ends of a connecting portion 242 have two connected arms 241. Specifically, the arm 241 extends along the long side direction 11, and the connecting portion 242 extends along the short side direction, so that a single battery bus 24 can connect the positive electrodes of a pair of battery cells and simultaneously connect the positive and negative electrodes of a pair of battery cells, thereby realizing parallel connection between an adjacent pair of battery cells. Therefore, the multiple battery cells on the bus assembly are connected in series through the multiple battery cell buses 24 in the bus assembly extending along the long side direction 11, and the multiple battery cells on the second row are connected in series through the multiple battery cell buses 24 in the second row extending along the second side 12, and the jumper bus 23 is respectively connected to the two battery cell buses 24 at the ends of the two bus assemblies at the same time, so that the two bus assemblies are connected in series. Specifically, one end of the jumper bus 23 is connected to the two positive poles of a pair of battery cells, and the other end of the jumper bus 23 is connected to the two negative poles of a pair of battery cells, so that the two pairs of battery cells are connected in series, and then the two rows of battery cells are further connected in series. The total positive bus 21 and the total negative bus 22 are located at the current output port on the side away from the battery cell bus 24, wherein the total positive bus 21 is commonly connected to the two positive poles of a group of battery cells and extends a positive pole connection point, and the total negative bus 22 is commonly connected to the two negative poles of another group of battery cells and extends a negative pole connection point, and is connected to the external power supply device through the positive pole connection point and the negative pole connection point.

[0037] In the above structural arrangement, a layout form is formed by bending into two bus assemblies to occupy most of the base 1. The middle position of the two bus assemblies can be used to set the detection line 3 for detecting the battery cells. Therefore, one detection line 3 can simultaneously connect and detect the two rows of battery cells on both sides with the help of the signal current collection nickel sheet 31, and cover all the battery cells. The arrangement and layout are neat and clear. By optimizing the layout in the conductive mechanism 2, especially the alternating assembly of separate multi-piece battery busbars 24, the entire structural organization is indirectly clear and easy to install. Precision welding work can be achieved with a small amount of training for workers, which helps to improve the installation efficiency of the entire CSS system.

[0038] Furthermore, the base 1 includes an inwardly concave first embedding groove 13, the first embedding groove 13 includes an outwardly protruding mounting column 131, the conductive mechanism 2 includes a mounting hole matching the size of the mounting column 131, and the size of the first embedding groove 13 matches the conductive mechanism 2, so that the conductive mechanism 2 is confined in the first embedding groove 13. Specifically, when installing the conductive mechanism 2, such as any one of the total positive busbar 21, the total negative busbar 22, the jumper busbar 23 or the cell busbar 24 in the conductive mechanism 2, first find the mounting hole on the total positive busbar 21, the total negative busbar 22, the jumper busbar 23 or the cell busbar 24, so that the mounting hole is inserted into the mounting column 131 facing the preset position, and the mounting column 131 is penetrated in the mounting hole, and the total positive busbar 21, the total negative busbar 22, the jumper busbar 23 or the cell busbar 24 is placed so that the outer contour direction is matched with the first embedding groove 13, and the preliminary positioning of the conductive mechanism 2 is completed, and then the total positive busbar 21, the total negative busbar 22, the jumper busbar 23 or the cell busbar 24 can be further welded. By positioning first and then welding, the installation efficiency of the entire system can be significantly improved.

[0039] Furthermore, the base also includes a concave second embedding groove 14, which is arranged between the two bus assemblies, and the size of the second embedding groove 14 matches the detection circuit 3, so that the detection circuit 3 is limited in the second embedding groove 14. When installing the detection circuit 3, similarly to the installation of the conductive mechanism 2, it is only necessary to align the outer contour of the detection circuit 3 with the second embedding groove 14, so that the detection circuit 3 can be pre-fixed quickly, so as to improve the accuracy of the next step of the detection circuit 3 docking. At the same time, the second embedding groove 14 is provided with a discharge hole 141 facing the direction of the battery cell, and the position of the discharge hole 141 matches the position of the battery cell. The above structural design makes full use of the structural position of the detection circuit 3 placed between the two rows of battery cell buses 24 in this embodiment, to achieve full coverage of all battery cells with the shortest line, and to meet the discharge, detection and other functional requirements of all battery cells at a relatively low cost.

[0040] Furthermore, each signal current collection nickel sheet 31 is correspondingly connected to a total positive bus 21, a total negative bus 22, a jumper bus 23 and a cell bus 24. This is also the advantage of the detection circuit 3 in this embodiment being placed in the middle of two rows of cell buses 24 to fully cover the cells on both sides. Each signal output terminal connector 32 directly contacts and detects the corresponding conductive mechanism 2 at a short distance. At the same time, a signal output terminal connector 32 for transmitting detection information to the outside world is provided at the end of the detection circuit 3 as an external interface, and the signal output terminal connector 32 is provided in the same power output direction as the total positive bus 21 and the total negative bus 22, so as to facilitate the regular wiring harness layout of the vehicle system.

[0041] Furthermore, the base 1 is configured as an insulating blister base, so that the good insulation of the blister material prevents electrical failures, while also helping to reduce the risk of thermal runaway.

[0042] Also included is an embodiment of an energy storage battery module, wherein the energy storage battery module includes a plurality of battery cells, the arrangement positions of the plurality of battery cells match the conductive mechanism, wherein every two battery cells correspond to one of the battery cell bus bars. Specifically, the positive electrodes of the two battery cells are connected to the arm portion 241 of the battery cell bus bar 24, and the negative electrodes of the two battery cells are connected to the connection portion 242 of the battery cell bus bar 24, and a parallel relationship is formed, and then two battery cells are grouped together and connected in series, and the series path is consistent with the arrangement of the conductive mechanism.

[0043] It is worth noting that in another embodiment, the battery cell bus 24 may not be limited to two separate rows. Multiple parallel rows of battery cell bus 24 may be added in series between the two bus assemblies and connected in series through a jumper bus 23 at the turning end point to present an S-shaped connection to achieve higher voltage requirements.

[0044] Although different specific embodiments are mentioned in the content of this application, this application is not limited to the situations described in the industry standards or embodiments, etc. Some industry standards or slightly modified implementation plans based on the implementation of the custom methods or embodiments can also achieve the same, equivalent or similar, or predictable implementation effects after deformation of the above embodiments. The embodiments of data acquisition, processing, output, judgment methods, etc. after these modifications or deformations can still fall within the scope of the optional implementation plans of this application.

[0045] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and changes to the present application without departing from the spirit of the present application. It is intended that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A CCS integrated structure of an energy storage battery module; characterized in that: The energy storage battery module CCS integrated structure includes: A base, wherein the base has a long side direction and a short side direction that are arranged to intersect each other; A conductive mechanism, the conductive mechanism is arranged on the base, the conductive mechanism comprises a total positive bus, a total negative bus, a jumper bus, and two bus assemblies arranged at intervals along the short side direction, the total positive bus, one of the bus assemblies, the jumper bus, the other bus assembly, and the total negative bus are sequentially connected in series; Each busbar assembly includes a plurality of cell busbars arranged at intervals along the long side direction and connected in series in sequence; A detection circuit, wherein the detection circuit is arranged between the two current-collecting components along the short side direction, and the conductive mechanism is connected to the detection circuit through a plurality of signal current collection nickel sheets; Among them, each of the battery cell bus includes two arms and a connecting portion between the two arms, wherein the two arms are respectively used to connect to the positive poles of two adjacent battery cells, and one connecting portion is used to simultaneously connect to the negative poles of two adjacent battery cells, so that one battery cell bus connects the two adjacent battery cells in parallel.

2. The energy storage battery module CCS integrated structure according to claim 1 is characterized in that: The base includes a first concave embedding groove, the first embedding groove includes a convex mounting column, the conductive mechanism includes a mounting hole matching the size of the mounting column, and the size of the first embedding groove matches the conductive mechanism, so that the conductive mechanism is confined in the first embedding groove.

3. The energy storage battery module CCS integrated structure according to claim 2 is characterized in that: The total positive busbar, the total negative busbar, the jumper busbar and the cell busbar each include a plurality of mounting holes that match the size and position of the plurality of mounting posts.

4. The energy storage battery module CCS integrated structure according to claim 1, characterized in that: The base also includes a second recessed groove, which is disposed between the two converging components. The size of the second groove matches the detection circuit, so that the detection circuit is limited in the second groove.

5. The energy storage battery module CCS integrated structure according to claim 4 is characterized in that: The second embedding groove is provided with a discharge hole facing the direction of the battery core.

6. The energy storage battery module CCS integrated structure according to claim 5, characterized in that: The position of the discharge hole matches the position of the battery cell.

7. The energy storage battery module CCS integrated structure according to claim 1, characterized in that: The arm portion extends along the long side direction, and the connecting portion extends along the short side direction.

8. The energy storage battery module CCS integrated structure according to claim 1, characterized in that: Each of the signal current collection nickel sheets is correspondingly connected to the total positive bus, the total negative bus, the jumper bus and the cell bus.

9. The energy storage battery module CCS integrated structure according to claim 1, characterized in that: One end of the detection circuit includes a signal output terminal connector, and the signal output terminal connector is arranged at an end of the detection circuit away from the battery bus.

10. An energy storage battery module, comprising the energy storage battery module CCS integrated structure according to any one of claims 1 to 9, characterized in that: It comprises a plurality of battery cells, the arrangement positions of the plurality of battery cells match the conductive mechanism, wherein every two battery cells correspond to one of the battery cell buses.

Images