CN219575832U

CN219575832U - Battery module structure

Info

Publication number: CN219575832U
Application number: CN202223314886.6U
Authority: CN
Inventors: 张宇平; 黄良取; 侯龙建; 别传玉; 宋华伟; 马天行
Original assignee: Wuxi Power Battery Regeneration Technology Co ltd
Current assignee: Wuxi Power Battery Regeneration Technology Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-08-22
Anticipated expiration: 2032-12-09

Abstract

The utility model provides a battery module structure, which comprises a battery cell group, a pair of oppositely arranged end plates and a pair of oppositely arranged side plates, wherein the battery cell group is provided with a plurality of battery cells; the end plates are oppositely arranged at two ends of the battery cell group, the side plates are oppositely arranged at two sides of the battery cell group, and the end plates are clamped with the adjacent side plates. The battery cell module is provided with a battery cell group, end plates and side plates, wherein a pair of end plates are oppositely arranged at two ends of the battery cell group, a pair of side plates are oppositely arranged at two sides of the battery cell group, and the end plates are clamped with the side plates. Thereby, a stable fixing structure is formed. The advantage of this kind of structure is that can be fast convenient be in groups the module, does not need laser equipment and screw material, practices thrift the cost.

Description

Battery module structure

Technical Field

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

Background

The battery pack is a device that can provide electric power to a vehicle or electric equipment; the battery pack comprises a plurality of battery modules, each battery module is composed of a plurality of battery cells in a clustered mode, each battery cell is a minimum power supply unit, end plates are generally arranged at two ends of each battery cell in each battery module, and the end plates are used for fixing the battery modules and bearing expansion pressure generated in the circulation process of the battery cells.

Because the fixing structure of each cell is not identical, the end plate of each battery module is specially designed in the prior art. For example, patent CN115189064a provides an energy storage battery module, a battery pack and an energy storage system, wherein a front end plate and a rear end plate are all fixedly connected with an inner frame bracket through a first fastener, so as to fix a battery cell. The end and side panels are typically secured by welding or by bolts.

But it has the following problems: the laser welding is completed with the assistance of a high-power laser welding machine, and the screw materials are added when the bolts are used for fixing, so that the process time is prolonged.

Disclosure of Invention

In view of this, it is necessary to provide a battery module structure that saves manufacturing costs.

The utility model provides a battery module structure, comprising:

the battery cell group, a pair of end plates arranged oppositely and a pair of side plates arranged oppositely; the end plates are oppositely arranged at two ends of the battery cell group, the side plates are oppositely arranged at two sides of the battery cell group, and the end plates are clamped with the adjacent side plates.

Optionally, the end plate includes end plate main part and connecting piece, the end plate main part is platy, can with the tip formation of electric core group is closely laminated, the connecting piece is fixed on the end plate main part, the connecting piece with the curb plate forms the joint.

Optionally, be provided with the elasticity joint piece on the connecting piece, elasticity joint piece one end with the connecting piece is fixed, and the other end is the free end, can with curb plate joint.

Optionally, a clamping hole is formed in the side plate, and the free end of the elastic clamping piece can penetrate into the clamping hole and form clamping connection.

Optionally, at least two clamping holes are formed in the side plate, and the clamping holes are arranged along a thickness direction parallel to the battery cell.

Optionally, the connecting piece is provided with a clamping hole, and the side plate is provided with an elastic clamping piece correspondingly matched with the clamping hole.

Optionally, at least two elastic clamping pieces are arranged on the side plate, and the elastic clamping pieces are arranged along the thickness direction parallel to the battery cell.

Optionally, the battery cell assembly further comprises a cushion pad, wherein the cushion pad is made of elastic materials, is attached to the outer surfaces of the plurality of battery cell groups, and is located between the battery cell groups and the end plates and between the side plates.

Optionally, the battery cell group includes a plurality of battery cells, and a plurality of battery cells are neatly arranged along the thickness direction of the battery cells.

Optionally, a buffer sheet is disposed between adjacent cells.

The beneficial effects of the utility model are as follows:

the battery cell module is provided with a battery cell group, end plates and side plates, wherein a pair of end plates are oppositely arranged at two ends of the battery cell group, a pair of side plates are oppositely arranged at two sides of the battery cell group, and the end plates are clamped with the side plates. Thereby, a stable fixing structure is formed. The advantage of this kind of structure is that can be fast convenient be in groups the module, does not need laser equipment and screw material, practices thrift the cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view showing the structure of a battery module according to the present utility model;

fig. 2 is an exploded view showing the structure of a battery module according to the present utility model;

in the figure, 1-cell group, 11-cell, 12-buffer sheet, 2-end plate, 21-end plate main body, 22-connecting piece, 221-elastic clamping sheet, 3-side plate, 31-clamping hole and 4-buffer pad.

Detailed Description

The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 2, an embodiment of the present utility model provides a battery module structure including: the battery cell group 1, a pair of end plates 2 which are oppositely arranged, and a pair of side plates 3 which are oppositely arranged; the pair of end plates 2 are oppositely arranged at two ends of the battery cell group 1, the pair of side plates 3 are oppositely arranged at two sides of the battery cell group 1, and the end plates 2 are clamped with the side plates 3.

The utility model is provided with a battery cell group 1, end plates 2 and side plates 3, wherein a pair of end plates 2 are oppositely arranged at two ends of the battery cell group 1, a pair of side plates 3 are oppositely arranged at two sides of the battery cell group 1, and the end plates 2 are clamped with the side plates 3. Thereby, a stable fixing structure is formed. The advantage of this kind of structure is that can be fast convenient be in groups the module, does not need laser equipment and screw material, practices thrift the cost.

The battery cell group 1 comprises a plurality of battery cells 11, and the battery cells 11 are orderly arranged along the thickness direction. In this embodiment, each of the battery cell groups 1 includes seven battery cells 11 therein.

It should be noted that, the electrode series nickel sheet of the battery cell 11 is disposed at the top of the battery cell 11. The purpose of setting like this is that will utmost point establish ties nickel piece with end plate 2 and curb plate 3 stagger, avoid the mutual interference the follow-up wiring of electricity core group 1 is handled.

In some embodiments, a buffer sheet 12 is disposed between adjacent cells 11, so as to slow down the impact force between the cells 11 and protect the cells 11.

Specifically, the end plate 2 includes an end plate main body 21 and a connecting piece 22, the end plate main body 21 is plate-shaped, and can be tightly attached to the end of the battery cell group 1, the connecting piece 22 is fixed on the end plate main body 21, and the connecting piece 22 and the side plate 3 form a clamping connection.

In some embodiments, the connecting piece 22 is provided with an elastic clamping piece 221, and one end of the elastic clamping piece 221 is fixed to the connecting piece 22, and the other end is a free end, and can be clamped with the side plate 3.

Correspondingly, the side plate 3 is provided with a clamping hole 31, and the free end of the elastic clamping piece 221 can penetrate into the clamping hole 31 and form clamping connection, so that the connecting piece 22 and the side plate 3 are fixed.

It can be understood that at least two clamping holes 31 are formed on the side plate 3, and the clamping holes 31 are arranged along a direction parallel to the thickness direction of the battery cell 11. When in use, the appropriate clamping holes 31 can be selected for clamping according to the number and thickness of the battery cells 11.

In other embodiments, the connecting piece 22 is provided with a clamping hole, and the side plate 3 is provided with an elastic clamping piece. It can be appreciated that at least two elastic clamping pieces are provided on the side plate 3, and the elastic clamping pieces are arranged along the thickness direction parallel to the electric core 11. When in use, the elastic clamping pieces can be appropriately clamped with the clamping holes on the connecting piece 22 according to the number and the thickness of the battery cells 11.

In addition, the utility model provides a battery module structure further comprising a buffer pad 4, wherein the buffer pad 4 is made of an elastic material, the buffer pad 4 is attached to the outer surfaces of the plurality of battery cell groups 1 and is positioned between the battery cell groups 1 and the end plate 2 and the side plate 3, and the buffer pad has the function of reducing impact force between the end plate 2 and the side plate 3 and the battery cell groups 1 and protecting the battery cell groups 1.

The beneficial effects of this embodiment are:

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims

1. A battery module structure, comprising:

the battery cell group, a pair of end plates arranged oppositely and a pair of side plates arranged oppositely; the pair of end plates are oppositely arranged at two ends of the battery cell group, the pair of side plates are oppositely arranged at two sides of the battery cell group, the end plates are clamped with the adjacent side plates, the end plates comprise end plate main bodies and connecting pieces, the end plate main bodies are plate-shaped and can be tightly attached to the end parts of the battery cell group, the connecting pieces are fixed on the end plate main bodies, and the connecting pieces are clamped with the side plates; the connecting piece is provided with an elastic clamping piece, one end of the elastic clamping piece is fixed with the connecting piece, and the other end of the elastic clamping piece is a free end and can be clamped with the side plate.

2. The battery module structure of claim 1, wherein the side plate is provided with a clamping hole, and the free end of the elastic clamping piece can penetrate into the clamping hole and form clamping connection.

3. The battery module structure according to claim 2, wherein at least two of the card holes are formed in the side plate, and the card holes are provided in a direction parallel to the thickness direction of the battery cell.

4. The battery module structure of claim 1, wherein the connecting member is provided with a clamping hole, and the side plate is provided with an elastic clamping piece correspondingly matched with the clamping hole.

5. The battery module structure according to claim 4, wherein at least two elastic clamping pieces are provided on the side plate, and the elastic clamping pieces are provided in parallel to the thickness direction of the battery cell.

6. The battery module structure of claim 1, further comprising a cushion pad made of an elastic material, wherein the cushion pad is attached to the outer surfaces of the plurality of cell groups between the cell groups and the end plates and the side plates.

7. The battery module structure of claim 1, wherein the cell group includes a plurality of cells, and the plurality of cells are aligned in a thickness direction thereof.

8. The battery module structure of claim 7, wherein a buffer sheet is provided between adjacent ones of the cells.