CN219180716U - Connecting assembly, battery cell assembly with same, battery pack and vehicle - Google Patents

Abstract

The utility model discloses a connection assembly, a battery cell assembly, a battery pack and a vehicle with the connection assembly, wherein the battery cell assembly comprises a plurality of battery cells, each battery cell is provided with a pole, and the connection assembly comprises: the mounting bracket is used for connecting two adjacent battery cells, and a through accommodating groove is formed in the mounting bracket; the connecting piece, the connecting piece with the installing support links to each other, the connecting piece is established in the holding tank, the connecting piece is used for connecting two adjacent electric core the utmost point post. According to the connecting component, the connecting component is simple in structure, and when the connecting component is connected with the cell module, the assembling operation is simple, and foolproof is not needed.

Description

Connecting assembly, battery cell assembly with same, battery pack and vehicle

Technical Field

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

Background

Currently, battery packs on the market are generally classified into three major categories, square cell battery packs, round cell battery packs, and soft pack cell battery packs. The square battery cell assembly is generally produced by arranging a plurality of square battery cells and then fixing the square battery cell assembly by using an assembly shell. However, the battery cell assembly in the related art cannot be foolproof in the installation process, and the production efficiency of the battery cell assembly is reduced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, a first object of the present utility model is to provide a connection assembly for a battery cell module, which has a simple structure, and is easy to assemble and does not require foolproof when the connection assembly is connected to the battery cell module.

A second object of the present utility model is to provide a battery cell assembly employing the above connection assembly.

A third object of the present utility model is to provide a battery pack employing the above-mentioned battery cell assembly.

A fourth object of the present utility model is to provide a vehicle employing the above battery pack.

According to an embodiment of the first aspect of the present utility model, the cell module includes a plurality of cells, each of the cells having a post, the connection module includes: the mounting bracket is used for connecting two adjacent battery cells, and a through accommodating groove is formed in the mounting bracket; the connecting piece, the connecting piece with the installing support links to each other, the connecting piece is established in the holding tank, the connecting piece is used for connecting two adjacent electric core the utmost point post.

According to the connecting component provided by the embodiment of the utility model, the connecting component is simple in structure, convenient to produce and process, low in production cost and beneficial to the use of the connecting component. When the connecting component is used for the battery cell module, the connecting component can be connected with the battery cell module, and normal use of the battery cell module is facilitated. In addition, in the process of assembling the battery cell module and the plurality of connecting components, the connecting components are not easy to assemble wrongly, foolproof is not needed, and the production efficiency of the battery cell module is improved.

According to some embodiments of the utility model, the mounting bracket and the connecting piece are an integral piece.

According to some embodiments of the utility model, a side surface of the connection piece facing the pole is lower than a side surface of the mounting bracket facing the battery cell.

According to some embodiments of the utility model, a mounting boss is provided on a surface of the mounting bracket on a side away from the battery cell, the receiving groove is formed on the mounting boss, and the receiving groove penetrates through the mounting bracket and the mounting boss.

According to some embodiments of the utility model, the mounting bracket is provided with at least one mounting structure on a surface of a side thereof remote from the battery cell.

According to some embodiments of the utility model, the mounting structure is a buckle, and the buckle is arranged on a surface of one side of the mounting bracket, which is far away from the battery cell.

According to some embodiments of the utility model, the mounting structure is a positioning column, and the positioning column is arranged on a surface of one side of the mounting bracket, which is far away from the battery cell.

According to some embodiments of the utility model, the mounting structure is a plurality of, and the plurality of mounting structures are respectively located at two sides of the accommodating groove along the length direction of the mounting bracket.

A cell assembly according to an embodiment of the second aspect of the present utility model comprises: the battery cell module comprises a plurality of battery cells, and the battery cells are arranged side by side; the connecting assembly is used for the cell module according to the embodiment of the first aspect, and the connecting assembly is connected with the cell module.

According to some embodiments of the utility model, the mounting bracket is mounted on the cell module, and the plurality of cells are electrically connected through the connecting pieces of the plurality of connecting assemblies; each electric core comprises a pole column, and the pole column is arranged in the accommodating groove and is connected with the connecting sheet of the connecting assembly.

A battery pack according to an embodiment of the third aspect of the present utility model includes the cell assembly according to the embodiment of the second aspect described above.

A vehicle according to an embodiment of a fourth aspect of the present utility model includes the battery pack according to the embodiment of the third aspect described above.

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

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of a cell assembly according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of portion D of FIG. 1;

FIG. 3 is a schematic view of a connection assembly according to an embodiment of the present utility model;

fig. 4 is a schematic view of a connection assembly according to another angle of an embodiment of the present utility model.

Reference numerals:

100. a cell assembly;

1. a battery cell module; 11. a battery cell;

200. a connection assembly;

20. a connecting sheet; 21. a mounting bracket; 211. a receiving groove;

212. a mounting boss; 213. a mounting structure;

214. a buckle; 215. and positioning columns.

Detailed Description

Embodiments of the present utility model are 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 utility model is described below with reference to fig. 1 to 4.

As shown in fig. 1, the cell module 1 includes a plurality of cells 11, each cell 11 having a pole (not shown). The meaning of "plurality" is two or more. For example, in the example of fig. 1, the plurality of cells 11 are arranged at intervals in the thickness direction (for example, the direction indicated by arrow a in fig. 1) of the cells 11, and the poles are located at the ends of the cells 11 in the length direction (for example, the direction indicated by arrow B in fig. 1). Thus, the plurality of battery cells 11 are connected to obtain the battery cell module 1 meeting different use requirements.

As shown in fig. 3, the connection assembly 200 according to the embodiment of the first aspect of the present utility model includes a mounting bracket 21 and a connection piece 20, the mounting bracket 21 is used for connecting two adjacent battery cells 11, a receiving groove 211 is formed on the mounting bracket 21, the connection piece 20 is connected with the mounting bracket 21, the connection piece 20 is disposed in the receiving groove 211, and the connection piece 20 is used for connecting the posts 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 tab 20 in the receiving groove 211 is connected to the post of the cell 11. So set up, two adjacent electric core 11 can realize the electricity through the connection piece 20 of coupling assembling 200 and connect to be favorable to the connection between a plurality of electric core 11, in order to guarantee the normal use of electric core module 1. Typically, the cell module 100 is formed by connecting a plurality of connection modules 200 to a cell module 1. Therefore, the connecting assembly 200 is formed by connecting the mounting bracket 21 with the connecting sheet 20, the structure of the connecting assemblies 200 connected with the cell module 1 is the same, and the connecting assemblies 200 are not easy to assemble erroneously in the process of assembling the cell module 100, so that foolproof is not needed, and the production efficiency of the cell module 100 is improved. In addition, the receiving groove 211 may be used to receive the connection piece 20, and the receiving groove 211 has a limiting effect on the connection piece 20, reducing the movement of the connection piece 20 on the mounting bracket 21, thereby enhancing the connection stability of the connection piece 20 with the mounting bracket 21. In addition, the space on the mounting bracket 21 can be effectively utilized, the material of the mounting bracket 21 is reduced, and the production cost of the connection assembly 200 is reduced. Furthermore, the mounting bracket 21 has a simple structure, which is advantageous for the production and processing of the connection assembly 200.

According to the connecting component 200 of the embodiment of the utility model, the connecting component 200 has the advantages of simple structure, convenient production and processing, lower production cost and contribution to the use of the connecting component 200. When the connection assembly 200 is used for the cell module 1, the connection assembly 200 can be connected with the cell module 1, which is beneficial to normal use of the cell module 1. In addition, in the process of assembling the cell module 1 and the plurality of connection assemblies 200, the connection assemblies 200 are not easy to assemble wrongly, foolproof is not needed, and the production efficiency of the cell module 100 is improved.

According to some embodiments of the utility model, the mounting bracket 21 and the connecting piece 20 are integrally formed. By the arrangement, the connection time of the connecting sheet 20 and the mounting bracket 21 can be shortened, which is beneficial to the production and processing of the connecting assembly 200, thereby being beneficial to the use of the connecting assembly 200. When the connection assembly 200 is used for the cell module 1, the installation difficulty is reduced, so that the assembly time of the connection assembly 200 and the cell module 1 can be shortened, and the assembly efficiency is improved.

Alternatively, referring to fig. 4, a side surface of the connection piece 20 facing the terminal is lower than a side surface of the mounting bracket 21 facing the battery cell 11, for example, in the example of fig. 1 and 4, when the connection assembly 200 is used for the battery cell module 1, the plurality of connection assemblies 200 are placed side by side in the thickness direction of the battery cell 11, and the plurality of connection assemblies 200 are fixedly connected with the battery cell module 1, respectively. So set up, when a plurality of coupling assembling 200 link to each other with electric core module 1, the side contact of two adjacent installing support 21, creepage distance between two adjacent connection pieces 20 increases to the safety in utilization of coupling assembling 200 has been improved, and then the security performance that electric core module 1 used has been promoted.

According to some embodiments of the present utility model, referring to fig. 1 to 3, a mounting boss 212 is provided on a surface of the mounting bracket 21 on a side remote from the battery cell 11, a receiving groove 211 is formed on the mounting boss 212, and the receiving groove 211 penetrates the mounting bracket 21 and the mounting boss 212. By this arrangement, the inner wall surface area of the accommodating groove 211 is increased, so that the connection stability of the connecting piece 20 and the mounting bracket 21 is improved, and the production and processing of the connecting assembly 200 are facilitated. In addition, by penetrating the receiving groove 211 through the mounting bracket 21 and the mounting boss 212, the electrical connection of the adjacent two cells 11 through the connection piece 20 is facilitated, thereby facilitating the normal use of the cell module 1.

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

According to some embodiments of the present utility model, the mounting structure 213 is a buckle 214, and the buckle 214 is disposed on a side surface (not shown) of the mounting bracket 21 away from the battery cell 11. Thus, the connection assembly 200 may be connected to other components such as a PCB circuit board, an FPC board, a protective cover, or the like through the snap 214, thereby facilitating connection of the battery module 1 to other components such as the PCB circuit board, the FPC board, or the protective cover, and facilitating connection operations. In addition, the buckle 214 has a simple structure, is convenient to produce and process, and is beneficial to the production and processing of the connection assembly 200.

According to other embodiments of the present utility model, the mounting structure 213 is a positioning post 215, and the positioning post 215 is disposed on a surface (not shown) of the mounting bracket 21 on a side away from the battery cell 11. Therefore, the connection assembly 200 can be positioned with other components such as a PCB circuit board, an FPC circuit board or a protective cover through the positioning posts 215, so that the connection accuracy of the connection assembly 200 with other components such as the PCB circuit board, the FPC circuit board or the protective cover can be improved, thereby being beneficial to the assembly of the battery module 1 with other components such as the PCB circuit board, the FPC circuit board or the protective cover, and further improving the universality of the connection assembly 200.

According to further embodiments of the present utility model, the mounting bracket 21 is provided with a catch 214 and a positioning post 215 (shown in fig. 3) on a side surface thereof remote from the battery cell 11. Therefore, by arranging the buckle 214 and the positioning column 215, when the battery cell module 1 is connected with other components such as a PCB circuit board, an FPC circuit board or a protective cover through the connection assembly 200, the battery cell module 1 can be positioned through the cooperation of the positioning column 215 and then fixed through the buckle 214, so that the assembly of the battery cell module 1 and the other components such as the PCB circuit board, the FPC circuit board or the protective cover is facilitated, and the use performance of the connection assembly 200 is further improved.

Alternatively, in combination with fig. 2 and 3, the plurality of mounting structures 213 are plural, and the plurality of mounting structures 213 are located on both sides of the receiving groove 211 along the length direction of the mounting bracket 21 (for example, the direction indicated by arrow C in fig. 1, i.e., the height direction of the battery cell). For example, in the example of fig. 2 and 3, two clips 214 and one positioning post 215 are provided on the mounting bracket 21, and the two clips 214 are located on both sides of the receiving groove 211. Thus, when the connection assembly 200 is connected with other components, both sides of the mounting bracket 21 in the length direction can be connected with other components, and the connection is relatively tight, thereby facilitating 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. By the arrangement, on one hand, the plastic part is not easy to conduct, so that the probability of creepage of two adjacent connecting sheets 20 is reduced, and the use safety of the connecting assembly 200 is improved. On the other hand, the plastic member has the functions of wear resistance, water resistance and moisture resistance, and can improve the long-term use stability of the connection assembly 200, thereby prolonging the service life of the connection assembly 200. In addition, by adopting integral injection molding, the molding of the connecting assembly 200 is faster, and the overall structure of the connecting assembly 200 is stable, which is beneficial to the production and use of the connecting assembly 200.

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

For example, in the example of fig. 1, a plurality of the battery cells 11 may be placed side by side in the thickness direction of the battery cells 11. Thereby, the capacitance of the cell module 1 can be increased, and the outer part of the cell module 1 is flat, which is helpful for connecting the cell module 1 with other components. In addition, each connecting assembly 200 can be provided with only one connecting sheet 20, so that the connecting assembly 200 has a simple structure and is beneficial to mass production of the connecting assemblies 200.

According to the battery cell assembly 100 of the embodiment of the utility model, by adopting the above-mentioned connection assemblies 200, when the battery cell module 1 is assembled with the connection assemblies 200, the structure of each connection assembly 200 is approximately the same, and an operator does not need to select the connection assemblies 200 to assemble according to a specific sequence, so that the assembly difficulty of the battery cell module 1 and the connection assemblies 200 can be reduced, the reworking probability of the operator can be reduced, the effective utilization rate of the connection assemblies 200 can be improved, and the production cost of the battery cell assembly 100 can be reduced. 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 module 100.

According to some embodiments of the present utility model, referring to fig. 1 and 2, a mounting bracket 21 is provided on the battery cell module 1, and a plurality of battery cells 11 are electrically connected through connection tabs 20 of a plurality of connection assemblies 200. Thus, the connection assembly 200 can be connected with the battery cell 11 through the mounting bracket 21, which is beneficial for connection of the connection assembly 200 with the battery cell 11. In addition, the plurality of battery cells 11 can be connected into a whole through the plurality of connecting assemblies 200, which is beneficial to the side-by-side placement of the plurality of battery cells 11.

Each cell 11 includes a post that is disposed within the receiving slot 211 and is connected to the connecting tab 20 of the connection assembly 200. For example, in the example of fig. 1 and 4, each connection assembly 200 is connected to two adjacent cells 11, and the posts of two adjacent cells 11 may be placed in the receiving slots 211 to connect to the connection pads 20. Therefore, the accommodating groove 211 has a positioning function on the pole of the battery cell 11, which is beneficial to the connection between the battery cell 11 and the connection assembly 200, so that the assembly accuracy of the battery cell module 1 and the connection assembly 200 can be improved, and the assembly time of the battery cell module 1 and the connection assembly 200 can be shortened, thereby further improving the assembly efficiency of the battery cell module 1 and the connection assembly 200. In addition, the accommodating groove 211 also has a limiting effect on the pole of the battery cell 11, so that the movement of the pole in the thickness direction of the battery cell 11 can be reduced, and the connection stability of a plurality of battery cells 11 is improved. It should be noted that, the size of the accommodating groove 211 may be set according to the size of the post of the battery cell 11, so as to better meet the use requirement.

Further alternatively, each cell 11 includes a cell cover (not shown) disposed within the receiving channel 211. Thereby, the positioning and the fixed connection of the battery cells 11 with the connection assembly 200 are also facilitated.

A battery pack according to an embodiment of the third aspect of the present utility model includes the cell assembly 100 according to the embodiment of the second aspect described above.

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

A vehicle according to an embodiment of a fourth aspect of the present utility model includes the battery pack according to the embodiment of the third aspect described above.

According to the vehicle provided by the embodiment of the utility model, the battery pack is adopted, so that the electricity safety of the vehicle can be improved, and the service performance of the vehicle can be improved.

Other constructions and operations of the battery pack and the vehicle according to the embodiment of the present utility model are known to those of ordinary skill in the art, and will not be described in detail herein.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "thickness", "upper", "lower", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A connection assembly for a cell module, the cell module comprising a plurality of cells, each cell having a post, the connection assembly comprising:

the mounting bracket is used for connecting two adjacent battery cells, and a through accommodating groove is formed in the mounting bracket;

the connecting piece, the connecting piece with the installing support links to each other, the connecting piece is established in the holding tank, the connecting piece is used for connecting two adjacent electric core the utmost point post.

2. A connection assembly for a cell module as recited in claim 1, wherein the mounting bracket and the tab are integrally formed.

3. The connection assembly for a cell module of claim 1, wherein a side surface of the tab facing the post is lower than a side surface of the mounting bracket facing the cell.

4. A connection assembly for a cell module as recited in claim 1, wherein a mounting boss is provided on a surface of the mounting bracket on a side thereof remote from the cell, the receiving slot is formed in the mounting boss, and the receiving slot extends through the mounting bracket and the mounting boss.

5. A connection assembly for a cell module as recited in claim 2, wherein the mounting bracket has at least one mounting structure provided on a surface thereof that is remote from the cell.

6. A connection assembly for a cell module as recited in claim 5, wherein the mounting structure is a clip disposed on a side surface of the mounting bracket remote from the cell.

7. The connection assembly for a cell module of claim 5, wherein the mounting structure is a positioning post disposed on a side surface of the mounting bracket remote from the cell.

8. A connection assembly for a cell module as recited in claim 5, wherein said plurality of mounting structures are located on each side of said receiving slot along a length of said mounting bracket.

9. A cell assembly, comprising:

the battery cell module comprises a plurality of battery cells, and the battery cells are arranged side by side;

a connection assembly for a cell module according to any one of claims 1 to 8, the connection assembly being connected to the cell module.

10. The cell assembly of claim 9, wherein the mounting bracket is mounted on the cell module, a plurality of the cells being electrically connected by the connecting tabs of a plurality of the connection assemblies;

each electric core comprises a pole column, and the pole column is arranged in the accommodating groove and is connected with the connecting sheet of the connecting assembly.

11. A battery pack comprising the cell assembly according to claim 9 or 10.

12. A vehicle comprising the battery pack according to claim 11.

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