CN220121985U

CN220121985U - Battery module

Info

Publication number: CN220121985U
Application number: CN202320726340.7U
Authority: CN
Inventors: 黄杨梓; 郑治武
Original assignee: Aerospace Lithium Technology Jiangsu Co ltd
Current assignee: Aerospace Lithium Technology Jiangsu Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-12-01
Anticipated expiration: 2033-04-04

Abstract

The utility model provides a battery module, which comprises a plurality of battery cell groups and fixed retaining plates positioned at one sides of the battery cell groups, wherein installation assemblies are arranged between adjacent battery cell groups and between the battery cell groups and the fixed retaining plates; the mounting assembly is used for connecting different workpieces and comprises a connecting piece and a limiting piece, and the connecting piece can move on the limiting piece along the axial direction of the limiting piece; the connecting piece comprises a first limiting block, the limiting piece comprises a second limiting block, the first limiting block and the second limiting block are arranged to be of a hollow cylindrical structure, and the first limiting block can enter a central hole of the second limiting block along the axial direction of the second limiting block; in the process that the battery cell module needs to be disassembled and replaced, the connection structure of the first limiting block and the second limiting block can facilitate the disassembly of the battery cell module on the battery module, so that the assembly efficiency of the battery module in production is improved, and the production cost is reduced.

Description

Battery module

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a battery module.

Background

With the rise of new energy, electric vehicles are receiving more and more attention, and the battery module is an important component of the electric vehicles; the battery module can be understood as an intermediate product of a battery core and a pack formed by combining lithium ion battery cores in a serial-parallel connection mode and adding a single battery monitoring and managing device.

The current battery module is overall structure, is inconvenient to tear the group battery open and trade from the battery module in production and use, consequently, when changing the battery, generally need change whole battery module, cause very big waste, increased the cost of production and use.

In view of the above, the present utility model provides a battery module to facilitate the replacement of the battery pack from the battery module, thereby reducing the production and use costs.

Disclosure of Invention

In order to solve the technical problems, the utility model adopts the following technical scheme:

a battery module comprises a plurality of battery cell groups and fixed retaining plates positioned at one sides of the battery cell groups, wherein installation assemblies are arranged between adjacent battery cell groups and between the battery cell groups and the fixed retaining plates; the installation component is used for connecting different work pieces, the installation component includes connecting piece and locating part, the connecting piece the locating part sets up respectively in the opposite side of different work pieces, the connecting piece with the locating part is connected, the connecting piece can follow on the locating part the axial direction of locating part removes.

Furthermore, a plurality of mounting assemblies are arranged between the adjacent cell groups and between the cell groups and the fixed retaining plates.

Further, the plurality of battery cell groups are connected through the mounting assembly to form a battery cell module; the fixed retaining plates are arranged on two sides of the cell module and are connected with the cell module through the mounting assembly.

Further, the installation component still includes the regulating part, the regulating part sets up the connecting piece or on the locating part, the regulating part can make the connecting piece with locating part fixed connection.

Further, the connecting piece includes first connecting block and locates the first stopper of first connecting block one side, first stopper is cavity cylinder structure, one side that first stopper kept away from first connecting block is provided with first breach, first breach intercommunication the centre bore of first stopper.

Further, the locating part includes the second connecting block and locates the second stopper of second connecting block one side, the second stopper set up with the structure of first stopper is the same, second stopper is kept away from second connecting block one side and is equipped with the second breach, the second breach intercommunication the centre bore of second stopper.

Further, the diameter of the first limiting block is set to be the same as the diameter of the central hole of the second limiting block; the size of the first limiting block is larger than that of the second notch, and the first limiting block enters the second limiting block from the central hole of the second limiting block and moves on the second limiting block along the second notch.

Further, the electric core group includes a plurality of electric cores and is located the limiting plate at electric core both ends, a plurality of electric cores are followed limiting plate's length direction is arranged in proper order, be equipped with on the limiting plate with electric core quantity the mounting hole the same, be provided with in the mounting hole and connect limiting plate the mounting of electric core.

Further, the upper side and the lower side of the battery cell group are provided with fixing supports, one side of each fixing support, which faces the battery cell group, is provided with a sliding plate, one side, close to the battery cell assembly, of each sliding plate is provided with an abutting vertical plate, and the abutting vertical plates are arranged to be in abutting connection with the limiting plates.

Compared with the prior art, the utility model provides a battery module, which comprises a mounting assembly, wherein the mounting assembly comprises a connecting piece and a limiting piece, the connecting piece comprises a first connecting block and a first limiting block, the limiting piece comprises a second connecting block and a second limiting block, the first limiting block and the second limiting block are arranged into a hollow cylindrical structure, and the first limiting block can enter a central hole of the second limiting block along the axial direction of the second limiting block, so that the connecting piece is connected with the limiting piece, and the connecting function of the mounting assembly is realized; in the process that the battery cell module needs to be disassembled and replaced, the first limiting block moves on the second limiting block along the axial direction of the second limiting block, so that the battery cell module can be conveniently disassembled on the battery cell module, the assembly efficiency of the battery module in production is improved, and the production cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a battery module (only a part of the cell structure is shown) according to the present utility model;

fig. 2 is a partial schematic structure of the battery module shown in fig. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic diagram illustrating the connection between the connector and the limiting member shown in FIG. 3;

fig. 5 is a schematic connection diagram of a plurality of battery modules shown in fig. 1;

the figure shows: the battery cell group 1, the battery cell 11, the limiting plate 12, the fixing piece 13 and the connecting plate 14;

a fixed retaining plate 2,

The mounting assembly 3, the connecting piece 31, the first connecting block 311, the first limiting block 312, the first notch 313, the limiting piece 32, the second connecting block 321, the second limiting block 322 and the second notch 323;

a cell module 4, a fixed bracket 5,

A slide plate 6 abutting against the riser 61;

Detailed Description

In order to make the objects, technical solutions and advantageous technical effects of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and detailed description. It should be understood that the detailed description is intended to illustrate the utility model, and not to limit the utility model.

It is also to be understood that the terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1, the present utility model provides a battery module, including a plurality of battery cell groups 1 and a fixed retaining plate 2 located at one side of the battery cell groups 1, wherein installation components 3 are disposed between adjacent battery cell groups 1 and between the battery cell groups 1 and the fixed retaining plate 2, the installation components 3 can enable the adjacent battery cell groups 1 and the battery cell groups 1 to be detachably connected with the fixed retaining plate 2, and the installation components 3 are disposed to facilitate the disassembly and replacement of the battery cell groups 1 in the battery module, thereby improving the assembly efficiency of the battery module in production and further reducing the production cost. It should be noted that, the plurality of cell groups 1 form a cell group 4 under the connection of the mounting assembly 3; the two fixed retaining plates 2 are arranged, the two fixed retaining plates 2 are distributed at two ends of the cell module 4, and the cell module 4 is fixed between the two fixed retaining plates 2 through the mounting assembly 3 so as to ensure the stability of the cell module 4.

Referring to fig. 2, the battery cell group 1 includes a plurality of battery cells 11 and limiting plates 12 disposed at two ends of the battery cells 11, the limiting plates 12 are in a strip-shaped plate structure, the axial direction of the battery cells 11 is perpendicular to the limiting plates 12, and the battery cells 11 are sequentially arranged along the length direction of the limiting plates 12; the limiting plates 12 are provided with a plurality of mounting holes (not shown) corresponding to the positions of the battery cells 11, fixing pieces 13 for connecting the battery cells 11 are arranged in the mounting holes, the fixing pieces 13 penetrate through the limiting plates 12 to be connected with the battery cells 11, and the fixing pieces 13 can fix the battery cells 11 between the two limiting plates 12. It should be noted that, a plurality of groups of electric cores 11 may be further disposed between the two limiting plates 12, a connecting plate 14 is disposed between adjacent groups of electric cores 11, a slot (not shown) connected with a port of the electric core 11 is disposed on the connecting plate 14, and the connecting plate 14 can connect the two groups of electric cores 11 together, so as to achieve different production and assembly requirements.

Referring to fig. 3, the mounting assembly 3 includes a connecting member 31 and a limiting member 32, the mounting assembly 3 is used for connecting different workpieces, the connecting member 31 and the limiting member 32 are distributed on opposite sides of the different workpieces, and the connecting member 31 and the limiting member 32 are connected to enable the different workpieces to be connected together. If the installation component 3 needs to connect the adjacent cell groups 1, the connecting piece 31 and the limiting piece 32 are distributed on the limiting plates 12 of the different cell groups 1, the connecting piece 31 and the limiting piece 32 are positioned between the adjacent cell groups 1, and the connecting piece 31 is connected with the limiting piece 32 to connect the adjacent cell groups 1; if the mounting assembly 3 connects the cell set 1 and the fixed retaining plate 2, the connecting piece 31 and the limiting piece 32 are distributed on the opposite side of the fixed retaining plate 2 and the cell set 1, that is, on the opposite side of the fixed retaining plate 2 and the upper limiting plate 12 of the cell set 1, and the connecting piece 31 is connected with the limiting piece 32, so that the cell set 1 is connected with the fixed retaining plate 2.

Referring to fig. 4, the connecting piece 31 includes a first connecting block 311 and a first limiting block 312 disposed at one side of the first connecting block 311, the first limiting block 312 has a hollow cylindrical structure, and a first notch 313 is disposed at one side of the first limiting block 312 away from the first connecting block 311; the limiting piece comprises a second connecting block 321 and a second limiting block 322 arranged on one side of the second connecting block 321, the second limiting block 322 is identical to the first limiting block 312 in structure, and a second notch 323 is arranged on one side, away from the second connecting block 321, of the second limiting block 322; the size of the first limiting block 312 is smaller than that of the second limiting block 322, and the diameter of the first limiting block 312 is the same as that of the central circular hole of the second limiting block 322; the first limiting block 312 and the second limiting block 322 are transversely arranged, the first limiting block 312 can enter the center hole of the second limiting block 322 along the axial direction of the second limiting block 322 and move along the second notch 323, and the first limiting block 312 can be limited in the second limiting block 322 due to the fact that the size of the first limiting block 312 is larger than that of the second notch 323, so that the connecting function of the mounting assembly 3 is achieved; it should be noted that, the mounting assembly 3 further includes an adjusting member (not shown), where the adjusting member may be disposed on the connecting member 31 or the limiting member 32, and the adjusting member may limit the movement of the connecting member 31 on the limiting member 32 along the axial direction of the limiting member 32, so as to implement a fixing function of the mounting assembly 3, and fix the connecting member 31 with the limiting member 32. The utility model solves the problem of how to facilitate the disassembly and assembly of the battery cell assembly 1 in the battery module, improve the assembly efficiency of the battery module in production, and make the connection and the fixing structure of the limiting member 32 irrelevant to the adjusting member, so the specific structure of the adjusting member arranged on the connecting member 31 or the limiting member 32 is not described in the utility model.

Referring to fig. 5, in the present utility model, since the adjacent cell groups 1 are connected by the mounting assembly 3, a plurality of cell groups 1 are connected together to form a cell group 4; however, the cell group 1 positioned in the middle of the cell group 4 lacks support, so that the duration of the connection effect of the installation component 3 to the adjacent cell group 1 is not long, and the long-time use of the battery module is not facilitated. That is, fixing brackets 5 are arranged on the upper side and the lower side of the battery cell module 4, a sliding plate 6 is arranged on one side of the fixing brackets 5 facing the battery cell group 1, the sliding plate 6 is arranged on the fixing brackets 5, an abutting vertical plate 61 perpendicular to the sliding plate 6 is arranged on one side of the sliding plate 6 close to the battery cell group 1, and the abutting vertical plate 61 is opposite to the limiting plate 12 and abuts against the limiting plate 12 so as to support the battery cell group 1 in the battery module. If two sets of cells 11 are provided in the cell group 1, the connection plate 14 connects the two sets of cells 11, the sliding plate 6 is also provided at the position of the fixing bracket 5 facing the connection plate 14, and the sliding plate 6 is abutted against the vertical plate 61 and the connection plate 14.

In summary, the present utility model provides a battery module, including a plurality of battery cell groups 1 and a fixed retaining plate 2 located at one side of the plurality of battery cell groups 1, wherein a mounting assembly 3 is disposed between adjacent battery cell groups 1 and between the battery cell groups 1 and the fixed retaining plate 2, the mounting assembly 3 includes a connecting piece 31 and a limiting piece 32, the connecting piece 31 includes a first connecting block 311 and a first limiting block 312, the limiting piece 32 includes a second connecting block 321 and a second limiting block 322, the first limiting block 312 and the second limiting block 322 are configured as a hollow cylindrical structure, the first limiting block 312 can enter a central hole of the second limiting block 322 along an axial direction of the second limiting block 322, so that the connecting piece 31 is connected with the limiting piece 32, and a connection function of the mounting assembly 3 is realized; in the process that the battery cell module 4 needs to be disassembled and replaced, the first limiting block 312 moves on the second limiting block 322 along the axial direction of the second limiting block 322, so that the battery cell group 1 can be conveniently disassembled on the battery cell group 4, the assembly efficiency of the battery module in production is improved, and the production cost is reduced.

The present utility model is not limited to the details and embodiments described herein, and thus additional advantages and modifications may readily be made by those skilled in the art, without departing from the spirit and scope of the general concepts defined in the claims and the equivalents thereof, and the utility model is not limited to the specific details, representative apparatus and illustrative examples shown and described herein.

Claims

1. A battery module, characterized in that: the battery cell module comprises a plurality of battery cell groups and fixed retaining plates positioned at one sides of the battery cell groups, wherein installation assemblies are arranged between adjacent battery cell groups and between the battery cell groups and the fixed retaining plates; the installation component is used for connecting different work pieces, the installation component includes connecting piece and locating part, the connecting piece the locating part sets up respectively in the opposite side of different work pieces, the connecting piece with the locating part is connected, the connecting piece can follow on the locating part the axial direction of locating part removes.

2. The battery module according to claim 1, wherein: and a plurality of mounting assemblies are arranged between the adjacent cell groups and between the cell groups and the fixed retaining plates.

3. The battery module according to claim 1, wherein: the plurality of battery cell groups are connected through the mounting assembly to form a battery cell module; the fixed retaining plates are arranged on two sides of the cell module and are connected with the cell module through the mounting assembly.

4. The battery module according to claim 1, wherein: the installation component still includes the regulating part, the regulating part sets up the connecting piece or on the locating part, the regulating part can make the connecting piece with locating part fixed connection.

5. The battery module according to claim 1, wherein: the connecting piece includes first connecting block and locates the first stopper of first connecting block one side, first stopper is cavity cylinder type structure, one side that first stopper kept away from first connecting block is provided with first breach, first breach intercommunication the centre bore of first stopper.

6. The battery module according to claim 5, wherein: the locating part includes the second connecting block and locates the second stopper of second connecting block one side, the second stopper set up with the structure of first stopper is the same, second stopper is kept away from second connecting block one side and is equipped with the second breach, the second breach intercommunication the centre bore of second stopper.

7. The battery module according to claim 6, wherein: the diameter of the first limiting block is set to be the same as the diameter of the central hole of the second limiting block; the size of the first limiting block is larger than that of the second notch, and the first limiting block enters the second limiting block from the central hole of the second limiting block and moves on the second limiting block along the second notch.

8. The battery module according to claim 1, wherein: the battery cell group comprises a plurality of battery cells and limiting plates positioned at two ends of the battery cells, the battery cells are sequentially arranged along the length direction of the limiting plates, the limiting plates are provided with mounting holes with the same number as the battery cells, and fixing pieces for connecting the limiting plates and the battery cells are arranged in the mounting holes.

9. The battery module according to claim 8, wherein: the battery cell is characterized in that fixing brackets are arranged on the upper side and the lower side of the battery cell, a sliding plate is arranged on one side, facing the battery cell, of the fixing brackets, an abutting vertical plate is arranged on one side, close to the battery cell, of the sliding plate, and the abutting vertical plate is in abutting connection with the limiting plate.