CN218975677U

CN218975677U - Battery module

Info

Publication number: CN218975677U
Application number: CN202222675674.4U
Authority: CN
Inventors: 徐加凌; 黄杨梓; 李和林
Original assignee: Aerospace Lithium Technology Jiangsu Co ltd
Current assignee: Aerospace Lithium Technology Jiangsu Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-05-05
Anticipated expiration: 2032-10-11

Abstract

The utility model provides a battery module, which comprises a plurality of circuit boards and a plurality of battery packs, wherein the circuit boards and the plurality of battery packs are arranged in parallel, the battery packs are arranged between two adjacent circuit boards, each battery pack comprises a plurality of single batteries which are arranged in parallel, two ends of each single battery respectively lean against the two adjacent circuit boards, the two adjacent circuit boards clamp and fix the single batteries, a plurality of conducting strips are arranged on the first surface of each circuit board, one end of each single battery leans against each conducting strip, the single batteries are electrically connected with the circuit boards through the conducting strips, and the circuit boards are also used for realizing the electrical connection of all the single batteries in each battery pack.

Description

Battery module

[ field of technology ]

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

[ background Art ]

With the development of new energy technology, power batteries (e.g., lithium ion batteries) have been widely used in technical fields such as electric vehicles. When the power battery is applied, in order to achieve the voltage and the electric quantity of the actual demands, a plurality of single batteries are electrically connected and assembled into a battery module, at present, when the single batteries are assembled into groups, the plurality of single batteries are required to be fixed by bolts, the fixing structure is complex, and the assembly efficiency is low.

In view of the foregoing, it is desirable to provide a novel battery module that overcomes the above-mentioned drawbacks.

[ utility model ]

The utility model aims to provide a battery module, wherein a circuit board can fix single batteries and realize the electric connection of all the single batteries in each battery pack, and the circuit board has the functions of fixing and conducting at the same time, so that the fixing structure of the battery module is simple, and the assembly efficiency is improved.

In order to achieve the above object, the utility model provides a battery module, which comprises a plurality of circuit boards and a plurality of battery packs, wherein the circuit boards and the plurality of battery packs are arranged in parallel, the battery packs are arranged between two adjacent circuit boards, each battery pack comprises a plurality of single batteries which are arranged in parallel, two ends of each single battery respectively lean against the two adjacent circuit boards, the two adjacent circuit boards clamp and fix the single batteries, a plurality of conducting plates are arranged on the first surface of each circuit board, one end of each single battery props against each conducting plate, the single batteries are electrically connected with the circuit boards through the conducting plates, and the circuit boards are used for realizing the electrical connection of all the single batteries in each battery pack.

In a preferred embodiment, the first surface of the circuit board is provided with a plurality of first flanges, which are arranged around the conductive sheet.

In a preferred embodiment, the circuit board further comprises a second surface opposite to the first surface, the second surface being provided with a second flange located opposite to the first flange.

In a preferred embodiment, the positive end of the unit cell abuts against the first surface of the circuit board and the positive end is retained within the first flange, and the negative end of the unit cell abuts against the second surface of the adjacent circuit board and the negative end is retained within the second flange.

In a preferred embodiment, one end of the circuit board is provided with a collection interface and an equalization interface, and the collection interface and the equalization interface are respectively connected with the conductive sheet.

In a preferred embodiment, the circuit board is provided with a plurality of heat dissipation holes which are arranged in parallel.

In a preferred embodiment, the circuit board is a PCB board.

Compared with the prior art, the battery module provided by the utility model has the advantages that the battery pack is arranged between the two adjacent circuit boards, the battery pack comprises a plurality of single batteries which are arranged in parallel, the two ends of each single battery respectively lean against the two adjacent circuit boards, the two adjacent circuit boards clamp and fix the single batteries, the first surface of the circuit board is provided with the plurality of conductive sheets, one end of each single battery is propped against the conductive sheet, the single batteries are electrically connected with the circuit board through the conductive sheets, and the circuit board is also used for realizing the electrical connection of all the single batteries in each battery pack.

[ description of the 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 according to the present utility model;

fig. 2 is a schematic view of a circuit board in the battery module shown in fig. 1.

[ detailed description ] of the utility model

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

Referring to fig. 1 and 2, a battery module 100 according to the present utility model includes a plurality of circuit boards 10 and a plurality of battery packs 20 arranged in parallel.

The battery pack 20 is disposed between two adjacent circuit boards 10, the battery pack 20 includes a plurality of unit batteries 21 arranged in parallel, two ends of the unit batteries 21 respectively abut against the two adjacent circuit boards 10, and the two adjacent circuit boards 10 clamp and fix the plurality of unit batteries 21. Specifically, the first surface 101 of the circuit board 10 is provided with a plurality of conductive plates 11, one end of the single battery 21 abuts against the conductive plates 11, and the single battery 21 is electrically connected with the circuit board 20 through the conductive plates 11, and the circuit board is further used for realizing electrical connection of all the single batteries 21 in each battery pack 20.

It can be appreciated that the adjacent two circuit boards 10 clamp and fix the plurality of single batteries 21, and the plurality of single batteries 21 between the adjacent two circuit boards 10 form the battery pack 20, and the first surface 101 of the circuit board 10 is provided with the plurality of conductive sheets 11, the single batteries 21 are electrically connected with the circuit board 20 through the conductive sheets 11, that is, the circuit board 10 can fix the single batteries, and the circuit board 10 realizes all the single batteries 21 in each battery pack 20 to be electrically connected, and the circuit board 10 has fixing and conductive functions.

Therefore, in the battery module 100 provided by the utility model, the battery pack 20 is disposed between two adjacent circuit boards 10, the battery pack 20 includes a plurality of parallel arranged single batteries 21, two ends of each single battery 21 respectively abut against two adjacent circuit boards 10, the adjacent two circuit boards 10 clamp and fix the single batteries 21, the first surface 101 of the circuit board 10 is provided with a plurality of conductive sheets 11, one end of each single battery 21 abuts against the conductive sheet 11, the single batteries 21 are electrically connected with the circuit boards 20 through the conductive sheets 11, and the circuit boards are also used for realizing the electrical connection of all the single batteries 21 in each battery pack 20, so that the circuit boards 10 can fix the single batteries and realize the electrical connection of all the single batteries 21 in each battery pack 20, and the circuit boards 10 have the functions of fixing and conducting at the same time, so that the fixing structure of the battery module is simple and the assembly efficiency is improved.

Further, the first surface 101 of the circuit board 10 is provided with a plurality of first flanges 12, the first flanges 12 being arranged around the conductive sheet 11. It will be appreciated that the shape of the first flange 12 varies with the cell 21, and in this embodiment, the cell 21 is cylindrical, and correspondingly, the shape of the first flange 12 is circular. Specifically, the number of first flanges 12 corresponds to the number of unit cells 21 in each battery pack 20.

The circuit board 10 further comprises a second surface 102 opposite to the first surface 101, the second surface 102 being provided with a second flange 13 located opposite to the first flange 12. Specifically, the two surfaces of the circuit board 10 are respectively provided with the first flange 12 and the second flange 13, so that two ends of the single battery 21 can be respectively clamped on the first flange of one circuit board and the second flange 13 of the other circuit board adjacent to the one circuit board, and further the adjacent two circuit boards 10 can clamp and fix the single battery 21. The circuit board is a PCB (printed circuit board) and has certain strength, so that the stability of the structure can be ensured.

In this embodiment, the positive electrode end 211 of the unit cell 21 abuts against the first surface 101 of the circuit board 10 and the positive electrode end 211 is clamped in the first flange 12, the negative electrode end 212 of the unit cell 21 abuts against the second surface 102 of the adjacent circuit board 10 and the negative electrode end 212 is clamped in the second flange 13, that is, the positive electrode end 211 of the unit cell 21 is electrically connected with the circuit board 10 through the conductive sheet 11, so as to further realize the electrical connection of the plurality of unit cells 21 in the battery pack 20. For example, the plurality of unit cells 21 in the battery pack 20 may be connected in parallel through the circuit board 10, and the plurality of circuit boards 10 are connected in series by connecting the total boards, so that all the unit cells in the battery module 100 may be electrically connected.

Further, an acquisition interface 14 and an equalization interface 15 are disposed at one end of the circuit board 10, the acquisition interface 14 and the equalization interface 15 are respectively connected with the conductive sheet 11, so as to acquire information such as current and voltage of the single battery 21, and the acquisition interface 14 and the equalization interface 15 can be connected to the main board through wires, so as to acquire and equalize battery information. Specifically, the circuit board 10 is provided with a plurality of heat dissipation holes 103 arranged in parallel, and the plurality of heat dissipation holes 103 are used for dissipating heat to prevent the temperature of the single battery 21 from being too high during operation.

In summary, according to the battery module 100 provided by the utility model, the battery pack 20 is disposed between two adjacent circuit boards 10, the battery pack 20 includes a plurality of parallel arranged unit batteries 21, two ends of each unit battery 21 respectively abut against two adjacent circuit boards 10, the two adjacent circuit boards 10 clamp and fix the plurality of unit batteries 21, the first surface 101 of the circuit board 10 is provided with a plurality of conductive sheets 11, one end of each unit battery 21 abuts against the conductive sheet 11, the unit batteries 21 are electrically connected with the circuit boards 20 through the conductive sheets 11, and the circuit boards are also used for realizing electrical connection of all unit batteries 21 in each battery pack 20, so that the circuit boards 10 can fix the unit batteries, and can realize electrical connection of all unit batteries 21 in each battery pack 20, and the circuit boards 10 have fixing and conductive functions, so that the fixing structure of the battery module is simple, and the assembly efficiency is improved.

The foregoing description is only of embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a battery module, its characterized in that includes a plurality of circuit board and a plurality of group battery of arranging side by side, the group battery sets up between two adjacent circuit boards, the group battery includes a plurality of battery cells of arranging side by side, the both ends of battery cell are supported respectively and are leaned on two adjacent circuit boards, and two adjacent circuit boards are fixed a plurality of battery cells centre gripping, the first surface of circuit board is provided with a plurality of conducting strips, the one end of battery cell is supported and is leaned on the conducting strip, just the battery cell passes through the conducting strip with circuit board electric connection, the circuit board is used for realizing all battery cell electric connection in every group battery.

2. The battery module of claim 1, wherein the first surface of the circuit board is provided with a plurality of first flanges disposed around the conductive sheet.

3. The battery module of claim 2, wherein the circuit board further comprises a second surface opposite the first surface, the second surface being provided with a second flange opposite the first flange.

4. The battery module of claim 3, wherein the positive end of the cell abuts the first surface of the circuit board and the positive end is retained within the first flange, and the negative end of the cell abuts the second surface of an adjacent circuit board and the negative end is retained within the second flange.

5. The battery module of claim 1, wherein one end of the circuit board is provided with a collection interface and an equalization interface, and the collection interface and the equalization interface are respectively connected with the conductive sheet.

6. The battery module of claim 1, wherein the circuit board is provided with a plurality of heat dissipation holes arranged in parallel.

7. The battery module of any one of claims 1-6, wherein the circuit board is a PCB board.