CN219180716U - Connection component and cell assembly, battery pack and vehicle having same - Google Patents

Abstract

The utility model discloses a connection assembly and a cell assembly with the same, a battery pack and a vehicle. The cell module includes a plurality of cells, and each cell has a pole. The connection assembly includes: A mounting bracket, the mounting bracket is used to connect two adjacent batteries, and a through receiving groove is formed on the mounting bracket; a connecting piece, the connecting piece is connected with the mounting bracket, and the connecting piece is provided with In the accommodating groove, the connecting piece is used to connect the pole posts of two adjacent electric cores. According to the connection assembly of the utility model, the structure of the connection assembly is simple, and when the connection assembly is connected with the battery module, the assembly operation is simple and no foolproofing is required.

Description

Connection component and cell assembly, battery pack and vehicle having same

technical field

The utility model relates to the technical field of batteries, in particular to a battery cell assembly of a connection assembly and a battery cell assembly, a battery pack, and a vehicle with the same.

Background technique

At present, the battery components on the market are usually divided into three categories, square cell battery components, circular cell battery components and pouch cell battery components. Among them, the prismatic cell battery assembly is usually produced by arranging a plurality of prismatic cells and then fixing them with the assembly casing. However, the cell assembly in the related art cannot be fool-proof during installation, which reduces the production efficiency of the cell assembly.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, the first purpose of this utility model is to provide a connection assembly for a battery module. The structure of the connection assembly is simple. When the connection assembly is connected to the battery module, the assembly operation is simple and no foolproofing is required.

The second purpose of the present utility model is to provide a cell assembly using the above connection assembly.

The third purpose of the present utility model is to provide a battery pack using the above battery cell assembly.

The fourth purpose of the present utility model is to provide a vehicle using the above-mentioned battery pack.

According to the connection assembly of the embodiment of the first aspect of the present invention, the cell module includes a plurality of cells, each of which has a pole, and the connection assembly includes: a mounting bracket for Connecting two adjacent batteries, the mounting bracket is formed with a through receiving groove; a connecting piece, the connecting piece is connected with the mounting bracket, the connecting piece is arranged in the receiving groove, the connecting piece The connecting piece is used to connect the pole posts of two adjacent electric cores.

According to the connection assembly of the embodiment of the utility model, the structure of the connection assembly is simple, the production and processing are convenient, and the production cost is low, which is beneficial to the use of the connection assembly. When the connection component is used in the battery module, the connection component can be connected with the battery module, which is beneficial to the normal use of the battery module. In addition, during the assembly process of the cell module and multiple connection components, the connection components are not easy to be assembled incorrectly, and there is no need for foolproofing, which improves the production efficiency of the cell components.

According to some embodiments of the present utility model, the mounting bracket and the connecting piece are integrally formed.

According to some embodiments of the present invention, a side surface of the connecting piece facing the pole is lower than a side surface of the mounting bracket facing the battery core.

According to some embodiments of the present invention, a mounting boss is provided on the surface of the mounting bracket away from the battery core, the receiving groove is formed on the mounting boss, and the receiving groove runs through the The above-mentioned installation bracket and the above-mentioned installation boss.

According to some embodiments of the present invention, at least one installation structure is provided on the surface of the installation bracket away from the battery core.

According to some embodiments of the present invention, the installation structure is a buckle, and the buckle is provided on a surface of the installation bracket that is away from the battery core.

According to some embodiments of the present utility model, the installation structure is a positioning column, and the positioning column is arranged on a surface of the installation bracket that is away from the battery core.

According to some embodiments of the present utility model, there are multiple installation structures, and the multiple installation structures are respectively located on both sides of the receiving groove along the length direction of the installation bracket.

The battery assembly according to the second aspect of the present invention includes: a battery module, the battery module includes a plurality of battery cells, and a plurality of the battery cells are placed side by side; a connection assembly, the connection assembly is According to the connection assembly for the battery module described in the embodiment of the first aspect above, the connection assembly is connected to the battery module.

According to some embodiments of the present invention, the mounting bracket is provided on the cell module, and a plurality of the cells are electrically connected through the connection pieces of the connection components; each of the cells A pole is included, and the pole is arranged in the receiving groove and connected with the connection piece of the connection assembly.

The battery pack according to the embodiment of the third aspect of the present invention includes the cell assembly according to the embodiment of the second aspect above.

The vehicle according to the embodiment of the fourth aspect of the utility model includes the battery pack according to the embodiment of the above third aspect.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

1 is a schematic diagram of a cell assembly according to an embodiment of the present invention;

Figure 2 is an enlarged view of part D circled in Figure 1;

3 is a schematic diagram of a connection assembly according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of a connection assembly from another angle according to an embodiment of the present invention.

Reference signs:

100. Cell components;

1. Cell module; 11. Cell;

200. Connection components;

20. Connecting piece; 21. Mounting bracket; 211. Accommodating groove;

212, installation boss; 213, installation structure;

214, buckle; 215, positioning column.

Detailed ways

Embodiments of the present invention will be described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary, and a connection assembly 200 according to an embodiment of the present invention will be described below with reference to FIGS. 1-4 .

As shown in FIG. 1 , the cell module 1 includes a plurality of cells 11 , and each cell 11 has a pole (not shown in the figure). "Plurality" means two or more. For example, in the example of FIG. 1, a plurality of electric cores 11 are arranged at intervals along the thickness direction of the electric core 11 (for example, the direction indicated by arrow A in FIG. The end of the direction indicated by arrow B in Figure 1). In this way, a plurality of battery cells 11 can be connected to obtain a battery cell module 1 meeting different usage requirements.

As shown in FIG. 3 , the connection assembly 200 according to the embodiment of the first aspect of the present invention includes a mounting bracket 21 and a connecting piece 20. The mounting bracket 21 is used to connect two adjacent battery cells 11. The mounting bracket 21 is formed with a penetrating The connecting piece 20 is connected to the mounting bracket 21 , the connecting piece 20 is set in the receiving groove 211 , and the connecting piece 20 is used to connect the poles of two adjacent battery cells 11 .

When the connection assembly 200 is connected to the cell module 1 , the mounting bracket 21 is connected to the cell 11 , and the connecting piece 20 located in the receiving groove 211 is connected to the pole of the cell 11 . In this way, two adjacent battery cells 11 can be electrically connected through the connecting piece 20 of the connection assembly 200 , which facilitates the connection between multiple battery cells 11 and ensures the normal use of the battery cell module 1 . Generally, the cell assembly 100 is composed of a cell module 1 connected with a plurality of connection assemblies 200 . Thus, the connecting assembly 200 is formed by connecting the mounting bracket 21 and the connecting piece 20. The multiple connecting assemblies 200 connected to the cell module 1 have the same structure. During the assembly process of the cell assembly 100, the connecting assembly 200 is not easy to be assembled incorrectly. There is no need for foolproofing, which improves the production efficiency of the battery cell assembly 100 . In addition, the accommodating groove 211 can be used to accommodate the connecting piece 20, and the accommodating groove 211 has a limiting effect on the connecting piece 20, reducing the movement of the connecting piece 20 on the mounting bracket 21, thereby strengthening the connection between the connecting piece 20 and the mounting bracket 21 Connection stability. In addition, the space on the mounting bracket 21 can also be effectively utilized, the material of the mounting bracket 21 can be reduced, and the production cost of the connection assembly 200 can be reduced. Moreover, the mounting bracket 21 has a simple structure, which is beneficial to the production and processing of the connection assembly 200 .

According to the connection assembly 200 of the embodiment of the present utility model, the structure of the connection assembly 200 is simple, the production and processing are convenient, and the production cost is low, which is beneficial to the use of the connection assembly 200 . When the connection assembly 200 is used in the battery module 1 , the connection assembly 200 can be connected with the battery module 1 , which is beneficial to the normal use of the battery module 1 . In addition, during the assembly process of the cell module 1 and the plurality of connection assemblies 200 , the connection assemblies 200 are not easy to be assembled incorrectly, and do not need foolproofing, which improves the production efficiency of the cell assembly 100 .

According to some embodiments of the present utility model, the mounting bracket 21 and the connecting piece 20 are integrally formed. Such setting can shorten the connection time between the connecting piece 20 and the mounting bracket 21 , which is beneficial to the production and processing of the connecting assembly 200 , and thus facilitates the use of the connecting assembly 200 . When the connection assembly 200 is used in the battery module 1 , the difficulty of installation is reduced, so that the assembly time of the connection assembly 200 and the battery module 1 can be shortened, and the assembly efficiency can be improved.

Optionally, referring to FIG. 4 , the side surface of the connecting piece 20 facing the pole is lower than the side surface of the mounting bracket 21 facing the battery cell 11 , for example, in the examples of FIGS. 1 and 4 , when the connection assembly 200 When used in the cell module 1 , a plurality of connection assemblies 200 are placed side by side along the thickness direction of the cell 11 , and the plurality of connection assemblies 200 are respectively fixedly connected to the cell module 1 . In this way, when a plurality of connection assemblies 200 are connected to the cell module 1, the side surfaces of two adjacent mounting brackets 21 are in contact, and the creepage distance between two adjacent connection pieces 20 increases, thereby improving the performance of the connection assembly. 200, thereby improving the safety performance of the battery module 1.

According to some embodiments of the present invention, referring to FIGS. 1-3 , a mounting boss 212 is provided on the surface of the mounting bracket 21 away from the battery core 11, and the receiving groove 211 is formed on the mounting boss 212, and the receiving groove 211 runs through the mounting bracket 21 and the mounting boss 212 . Such setting increases the area of the inner wall of the receiving groove 211 , thereby improving the connection stability between the connecting piece 20 and the mounting bracket 21 , and is more conducive to the production and processing of the connecting assembly 200 . In addition, by making the accommodating groove 211 penetrate the mounting bracket 21 and the mounting boss 212 , the electrical connection between two adjacent battery cells 11 through the connecting piece 20 is facilitated, thereby facilitating the normal use of the battery cell module 1 .

Further, referring to FIG. 2 and FIG. 3 , at least one mounting structure 213 is provided on the surface of the mounting bracket 21 away from the battery core 11 . When the connection assembly 200 is connected to the cell module 1 , the surface of the connection assembly 200 facing the cell 11 is connected to the cell 11 , and the surface of the connection assembly 200 away from the cell 11 is provided with a mounting structure 213 . Thus, the connection assembly 200 can be connected with other components such as PCB circuit board, FPC circuit board or protective cover through the mounting structure 213, thereby facilitating the connection between the battery module 1 and other components such as PCB circuit board, FPC circuit board or protective cover. The connection is convenient, and the connection operation is convenient, which improves the versatility of the connection assembly 200.

According to some embodiments of the present invention, the installation structure 213 is a buckle 214, and the buckle 214 is provided on the side surface of the installation bracket 21 away from the battery cell 11 (not shown in the figure). Thus, the connection assembly 200 can be connected with other components such as PCB circuit board, FPC circuit board or protective cover through buckle 214, thereby facilitating the connection between the battery module 1 and other components such as PCB circuit board, FPC circuit board or protective cover. connection, and the connection is easy to operate. In addition, the buckle 214 has a simple structure and is convenient for production and processing, which is beneficial to the production and processing of the connection assembly 200 .

According to other embodiments of the present invention, the installation structure 213 is a positioning post 215, and the positioning post 215 is arranged on the surface of the mounting bracket 21 away from the battery cell 11 (not shown in the figure). Thus, the connection assembly 200 can be positioned with other components such as PCB circuit boards, FPC circuit boards or protective covers through the positioning column 215, which can improve the connection between the connection assembly 200 and other components such as PCB circuit boards, FPC circuit boards or protective covers. Accuracy, thereby facilitating the assembly of the cell module 1 and other components such as PCB circuit boards, FPC circuit boards or protective covers, thereby improving the versatility of the connection assembly 200 .

According to some other embodiments of the present invention, buckles 214 and positioning posts 215 are provided on the surface of the mounting bracket 21 away from the battery core 11 (as shown in FIG. 3 ). Therefore, by setting the buckle 214 and the positioning column 215, when the cell module 1 is connected to other components such as a PCB circuit board, an FPC circuit board or a protective cover through the connection assembly 200, it can first be positioned through the cooperation of the positioning column 215. , and then fixed by the buckle 214, which facilitates the assembly of the cell module 1 with other components such as PCB circuit boards, FPC circuit boards or protective covers, thereby further improving the performance of the connection assembly 200.

Optionally, with reference to FIG. 2 and FIG. 3 , there are multiple mounting structures 213, and the multiple mounting structures 213 are along the length direction of the mounting bracket 21 (for example, the direction indicated by arrow C in FIG. 1 , that is, the height direction of the battery cell) They are respectively located on two sides of the receiving groove 211 . For example, in the examples shown in FIG. 2 and FIG. 3 , two buckles 214 and a positioning post 215 are provided on the mounting bracket 21 , and the two buckles 214 are located on both sides of the receiving groove 211 . Therefore, when the connection assembly 200 is connected with other components, both sides of the installation bracket 21 in the length direction can be connected with other components, and the connection is relatively tight, which is beneficial to the long-term use of the connection assembly 200 .

Optionally, the mounting bracket 21 is a plastic part, and the mounting bracket 21 and the connecting piece 20 are integrally injection molded. With such an arrangement, on the one hand, the plastic parts are not easy to conduct electricity, which can reduce the probability of creepage between two adjacent connecting pieces 20 and improve the use safety of the connecting assembly 200 . On the other hand, the plastic parts are wear-resistant, waterproof and moisture-proof, which can improve the stability of the connection assembly 200 in long-term use, thereby prolonging the service life of the connection assembly 200 . In addition, by adopting integral injection molding, the connection assembly 200 can be molded quickly, and the overall structure of the connection assembly 200 is stable, which is beneficial to the production and use of the connection assembly 200 .

The cell assembly 100 according to the embodiment of the second aspect of the present utility model includes a cell module 1 and a connection assembly 200, and the connection assembly 200 is the connection assembly 200 for the cell module described in the embodiment of the first aspect above , the connection assembly 200 is connected to the cell module 1 .

For example, in the example of FIG. 1 , a plurality of battery cells 11 may be placed side by side along the thickness direction of the battery cells 11 . Thus, the capacitance of the battery module 1 can be increased, and the exterior of the battery module 1 is relatively flat, which facilitates the connection between the battery module 1 and other components. In addition, each connection assembly 200 may only be provided with one connection piece 20 , and the structure of the connection assembly 200 is simple, which facilitates mass production of the connection assembly 200 .

According to the cell assembly 100 of the embodiment of the present utility model, by using the above connection assembly 200, when the cell module 1 is assembled with the connection assembly 200, the structure of each connection assembly 200 is roughly the same, and the operator does not need to follow a specific sequence Selecting the connection assembly 200 for assembly can reduce the difficulty of assembling the cell module 1 and the connection assembly 200 , and reduce the probability of rework by operators, thereby improving the effective utilization of the connection assembly 200 and reducing the production cost of the cell assembly 100 . In addition, the assembly accuracy of the cell module 1 and the connection assembly 200 can be improved, thereby further improving the production efficiency of the cell assembly 100 .

According to some embodiments of the present invention, referring to FIG. 1 and FIG. 2 , a mounting bracket 21 is provided on the cell module 1 , and a plurality of cells 11 are electrically connected through connecting pieces 20 of a plurality of connection components 200 . Thus, the connection assembly 200 can be connected to the battery cell 11 through the mounting bracket 21 , which facilitates the connection of the connection assembly 200 to the battery cell 11 . In addition, multiple battery cells 11 can be connected as a whole through multiple connection components 200 , which facilitates the placement of multiple battery cells 11 side by side.

Each battery cell 11 includes a pole, and the pole is arranged in the receiving groove 211 and connected with the connection piece 20 of the connection assembly 200 . For example, in the examples shown in FIG. 1 and FIG. 4 , each connection assembly 200 is connected to two adjacent battery cells 11, and the poles of the two adjacent battery cells 11 can be placed in the receiving groove 211 to connect with the connecting piece 20. connected. Therefore, the receiving groove 211 has a positioning effect on the pole of the battery cell 11, which is beneficial to the connection between the battery cell 11 and the connection assembly 200, can improve the assembly accuracy of the battery module 1 and the connection assembly 200, and can shorten the length of the battery cell. The assembly time of the module 1 and the connection assembly 200 can further improve the assembly efficiency of the cell module 1 and the connection assembly 200 . In addition, the accommodating groove 211 also has a limiting effect on the poles of the battery cells 11 , which can reduce the movement of the poles in the thickness direction of the battery cells 11 and improve the connection stability of multiple battery cells 11 . It should be noted that the size of the receiving groove 211 can be set according to the size of the pole of the battery cell 11 to better meet the use requirements.

Further optionally, each cell 11 includes a cell cover (not shown in the figure), and the cell cover is disposed in the receiving groove 211 . Thus, the positioning and fixed connection of the battery cell 11 and the connection assembly 200 are also facilitated.

The battery pack according to the embodiment of the third aspect of the present invention includes the cell assembly 100 according to the embodiment of the second aspect above.

According to the battery pack of the embodiment of the present utility model, by adopting the above-mentioned battery cell assembly 100, the production efficiency of the battery pack can be improved, and the usability and safety performance of the battery pack can be improved.

The vehicle according to the embodiment of the fourth aspect of the utility model includes the battery pack according to the embodiment of the above third aspect.

According to the vehicle of the embodiment of the present invention, by adopting the above-mentioned battery pack, the safety of electricity consumption of the vehicle can be improved, thereby improving the performance of the vehicle.

Other configurations and operations of the battery pack and the vehicle according to the embodiment of the present invention are known to those skilled in the art, and will not be described in detail here.

In the description of the present utility model, it should be understood that the orientations or positional relationships indicated by the terms "thickness", "upper", "lower", and "right" are based on the orientations or positional relationships shown in the accompanying drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation Specific features, structures, materials or characteristics described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (12)

1. A connection assembly for a cell module, wherein the cell module includes a plurality of cells, each of which has a pole, and the connection assembly includes: a mounting bracket, the mounting bracket is used to connect two adjacent battery cells, and a penetrating receiving groove is formed on the mounting bracket; A connecting piece, the connecting piece is connected with the mounting bracket, the connecting piece is arranged in the receiving groove, and the connecting piece is used to connect the pole posts of two adjacent battery cells. 2 . The connection assembly for a battery module according to claim 1 , wherein the mounting bracket and the connection piece are integrally formed. 3 . 3. The connection assembly for the battery module according to claim 1, wherein the surface of the connecting piece facing the pole is lower than the surface of the mounting bracket facing the battery. one side surface. 4. The connection assembly for the cell module according to claim 1, wherein a mounting boss is provided on the surface of the mounting bracket away from the cell, and the receiving groove is formed in the on the mounting boss, and the accommodating groove runs through the mounting bracket and the mounting boss. 5 . The connection assembly for a cell module according to claim 2 , wherein at least one mounting structure is provided on a surface of the mounting bracket away from the cell. 6 . 6. The connection assembly for the battery module according to claim 5, wherein the installation structure is a buckle, and the buckle is provided on a side of the installation bracket away from the battery core surface. 7. The connection assembly for the battery module according to claim 5, wherein the installation structure is a positioning column, and the positioning column is arranged on the side of the installation bracket away from the battery core surface. 8. The connection assembly for a battery module according to claim 5, wherein there are multiple mounting structures, and the multiple mounting structures are respectively located in the housing along the length direction of the mounting bracket. sides of the groove. 9. A cell assembly, characterized in that it comprises: A cell module, the cell module includes a plurality of cells, and the plurality of cells are placed side by side; A connection assembly, the connection assembly being the connection assembly for a battery module according to any one of claims 1-8, the connection assembly being connected to the battery module. 10. The cell assembly according to claim 9, wherein the mounting bracket is provided on the cell module, and a plurality of the cells are electrically connected through the connecting pieces of the plurality of connection assemblies. connect; Each of the electric cores includes a pole, and the pole is arranged in the receiving groove and connected with the connection piece of the connection assembly. 11. A battery pack, comprising the cell assembly according to claim 9 or 10. 12. A vehicle, characterized by comprising the battery pack according to claim 11.

Images