CN220652271U - Battery cell connecting sheet and battery module - Google Patents
Battery cell connecting sheet and battery module Download PDFInfo
- Publication number
- CN220652271U CN220652271U CN202322159711.0U CN202322159711U CN220652271U CN 220652271 U CN220652271 U CN 220652271U CN 202322159711 U CN202322159711 U CN 202322159711U CN 220652271 U CN220652271 U CN 220652271U
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- CN
- China
- Prior art keywords
- connecting piece
- contact
- cell
- battery
- battery module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005452 bending Methods 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 238000003491 array Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application discloses a battery cell connection piece and battery module relates to battery technology field. The cell connecting piece comprises a contact piece and a connecting piece body which are connected with each other, wherein a bending seam is formed between the contact piece and the connecting piece body; the contact pieces are arranged at intervals along the length direction of the connecting piece body, so that the contact pieces are correspondingly connected with the battery core polar posts. The battery cell connecting piece and the battery module can ensure reliable contact between the pole and the connecting piece, and improve the yield of the battery module.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery cell connecting sheet and a battery module.
Background
Along with the annual decrease of energy storage cost, the cost of fuel power generation is continuously increased, energy storage is increasingly valued in the global scope, and the battery module is deeply favored by the energy storage market.
In the traditional battery module, the connection of the battery cell pole column is realized by using the connecting sheet at the position right above the battery cell, and then the battery cell pole column and the connecting sheet are fused through laser welding, but the existing connecting sheet is in high accumulation tolerance generated when being connected with a plurality of battery cell pole columns, so that part of pole columns are not easy to reliably contact with the connecting sheet, and the yield of the battery module is easy to be low.
Disclosure of Invention
An object of the application is to provide a battery cell connection piece and battery module, can make reliable contact between utmost point post and the connection piece to battery module's yields has been improved.
Embodiments of the present application are implemented as follows:
the embodiment of the application provides a battery cell connecting piece which is arranged in a battery module and is used for converging battery cell poles in the battery module, and comprises a contact piece and a connecting piece body which are connected with each other, wherein a bending seam is formed between the contact piece and the connecting piece body; the contact pieces are arranged at intervals along the length direction of the connecting piece body, so that the contact pieces are correspondingly connected with the battery core polar posts.
Optionally, the contact piece includes a connecting portion and a contact portion that are connected to each other, and one side of the connecting portion is connected to the connecting piece body, so that the contact portion can be bent relative to the connecting piece body through the connecting portion; the contact part is used for being connected with the battery core electrode post.
Optionally, a diversion hole is formed on the contact portion, and the diversion hole corresponds to the pole.
Optionally, the shape of the bending seam is omega-shaped.
Optionally, the material of the cell connecting piece is aluminum.
Optionally, the cell connecting piece is integrally formed by stamping.
Optionally, a plurality of positioning holes are arranged on the connecting sheet body at intervals.
Optionally, the positioning holes and the contact pieces are alternately distributed in the length extending direction of the connecting piece body.
On the other hand, the embodiment of the application provides a battery module, including first support and the second support of mutual lock, set up a plurality of electric cores between first support and the second support to and aforesaid electric core connection piece, a plurality of electric core array distributes, the contact piece of electric core connection piece is connected with a plurality of the utmost point post one-to-one of electric core.
The beneficial effects of the embodiment of the application include:
the embodiment of the application provides a battery cell connecting piece and battery module, has offered the seam of bending through between contact piece and connecting piece body to make the contact piece can have certain ability of buckling, in order to reduce the high accumulation tolerance that produces when connecting piece and a plurality of battery cell polar posts are connected, and contact piece and battery cell polar post correspond to be connected, make reliable contact between polar post and the connecting piece, and improved battery module's yields.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, 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 application and therefore should not be considered limiting the scope, and that 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 diagram of a cell connecting piece according to an embodiment of the present application;
fig. 2 is a schematic structural view of a battery module according to an embodiment of the present application;
fig. 3 is a schematic diagram illustrating the mating of the battery cell and the connecting pad body of fig. 2.
Icon: 10-connecting a sheet body; 11-positioning holes; 20-contact pieces; 21-a connection; 22-contact; 23-deflector holes; 30-bending the seam; 40-cell; 50-a first scaffold; 60-second rack.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are 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 present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put when the product of the application is used, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
In the traditional battery module, the connection of the battery cell pole column is realized by using the connecting sheet at the position right above the battery cell, and then the battery cell pole column and the connecting sheet are fused through laser welding, but the existing connecting sheet is in high accumulation tolerance generated when being connected with a plurality of battery cell pole columns, so that part of pole columns are not easy to reliably contact with the connecting sheet, and the yield of the battery module is easy to be low. In order to solve the above problems, the embodiments of the present application provide the following technical solutions to overcome the above problems.
Referring to fig. 1 to 3, an embodiment of the present application provides a battery core connecting piece, which is installed in a battery module and is used for converging battery core poles in the battery module, and includes a contact piece 20 and a connecting piece body 10 that are connected with each other, and a bending seam 30 is formed between the contact piece 20 and the connecting piece body 10; the contact pieces 20 are arranged at intervals along the length direction of the connecting piece body 10, so that the contact pieces 20 are correspondingly connected with the battery cell poles.
Specifically, the connecting piece body 10 is in a strip shape, the plurality of contact pieces 20 are connected with the connecting piece body 10 and are distributed at intervals along the length direction of the connecting piece body 10, and bending seams 30 are further formed between the contact pieces 20 and the connecting piece body 10. In practical application, the connecting sheet body 10 is disposed at a position right above the plurality of electric cores 40, and then the electric core polar columns and the contact sheets 20 are fused in a one-to-one correspondence manner by laser welding, so that the polar columns of the electric cores 40 are connected.
According to the battery cell connecting piece, the bending seam 30 is formed between the contact piece 20 and the connecting piece body 10, so that the contact piece 20 can have certain bending capacity, the height accumulation tolerance generated when the connecting piece is connected with a plurality of battery cell polar posts is reduced, the contact piece 20 and the battery cell polar posts are correspondingly connected, reliable contact between the polar posts and the connecting piece is achieved, and the yield of the battery module is improved.
Referring to fig. 1 and 3, in the embodiment of the present application, the contact piece 20 includes a connecting portion 21 and a contact portion 22 connected to each other, and one side of the connecting portion 21 is connected to the connecting piece body 10, so that the contact portion 22 can be bent relative to the connecting piece body 10 through the connecting portion 21; wherein the contact portion 22 is used for connecting with the cell terminal.
Specifically, one side of the connecting portion 21 is connected with the connecting piece body 10, and the bending seam 30 between the contact piece 20 and the connecting piece body 10 is combined, so that the contact piece 20 can be bent relative to the connecting piece body 10 at the connecting portion 21, and further adverse effects caused by the height accumulation tolerance generated when the connecting piece is connected with a plurality of electric core poles in practical application are reduced.
Referring to fig. 1 and 3, in the embodiment of the present application, a guiding hole 23 is formed on the contact portion 22, and the guiding hole 23 corresponds to the pole.
In practical application, the diversion holes 23 are arranged corresponding to the poles, and when the battery cell 40 discharges, the diversion holes 23 uniformly distribute current on the surface of the diversion holes 23, so that the retention of current and the accumulation of heat are reduced, and the diversion capacity of the connecting sheet is enhanced.
Referring to fig. 1 and 3, in the embodiment of the present application, the bending seam 30 is omega-shaped.
In particular, the shape of the bending seam 30 adopts an omega shape, which can improve the deformability of the contact piece 20, and further effectively reduce the influence of the tolerance of the height accumulation generated by the connection of a single connecting piece and a plurality of battery cells 40
Referring to fig. 1 and 3, in the embodiment of the present application, the material of the cell connection piece is aluminum.
In practical application, along with the increase of the number of the parallel battery cells 40 of the battery cell connecting sheet, the over-current of the battery module is increased, and the generated heat can effectively perform heat convection through the aluminum connecting sheet and air, so that the aluminum material cost is lower, the weight is lighter, and the market competitiveness is better.
Referring to fig. 1 and 3, in the embodiment of the present application, the cell connecting piece is integrally formed by stamping, and the design of integral stamping is adopted, so that the production cost can be reduced, and the production process of the cell connecting piece is reduced.
Referring to fig. 1 to 3, in the embodiment of the present application, a plurality of positioning holes 11 are disposed on the connecting piece body 10 at intervals, and the positioning holes 11 and the contact pieces 20 are alternately distributed along the length extending direction of the connecting piece body 10.
Specifically, the positioning holes 11 are formed in the connecting piece body 10 and are alternately distributed with the contact pieces 20 in the length extending direction of the connecting piece body 10, and when the cell connecting piece is actually installed, the contact pieces 20 and the cell electrode posts are in one-to-one correspondence through the limiting of the positioning holes 11.
Referring to fig. 1 to 3, the embodiment of the present application further discloses a battery module, which includes a first bracket 50 and a second bracket 60 that are fastened to each other, a plurality of battery cells 40 disposed between the first bracket 50 and the second bracket 60, and the battery cell connecting pieces in the foregoing embodiments. The plurality of electric cores 40 are distributed in an array, and the contact pieces 20 of the electric core connecting pieces are connected with the poles of the plurality of electric cores 40 in a one-to-one correspondence mode. The battery module comprises the same structure and beneficial effects as the battery cell connecting sheet in the previous embodiment. The structure and the beneficial effects of the cell connection sheet have been described in detail in the foregoing embodiments, and are not described herein.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (9)
1. The battery cell connecting piece is arranged in the battery module and is used for converging battery cell poles in the battery module, and is characterized by comprising a contact piece and a connecting piece body which are connected with each other, wherein a bending seam is formed between the contact piece and the connecting piece body;
the contact pieces are arranged at intervals along the length direction of the connecting piece body, so that the contact pieces are correspondingly connected with the battery core polar posts.
2. The cell connecting piece according to claim 1, wherein the contact piece includes a connecting portion and a contact portion connected to each other, one side of the connecting portion being connected to the connecting piece body so that the contact portion can be bent with respect to the connecting piece body through the connecting portion;
the contact part is used for being connected with the battery core electrode post.
3. The cell connecting piece according to claim 2, wherein the contact portion is provided with a diversion hole, and the diversion hole corresponds to the pole.
4. A cell connection tab according to claim 3, wherein the bending slit is omega-shaped.
5. The cell connection piece according to any one of claims 1-4, wherein the cell connection piece is made of aluminum.
6. The cell connector of any of claims 1-4, wherein the cell connector is integrally stamped.
7. The cell connecting piece according to any one of claims 1 to 4, wherein a plurality of positioning holes are provided in the connecting piece body at intervals.
8. The cell tab of claim 7 wherein the locating holes alternate with the contact tabs in a lengthwise extension of the tab body.
9. A battery module comprising a first bracket and a second bracket which are fastened to each other, a plurality of electric cores arranged between the first bracket and the second bracket, and the electric core connecting sheet according to any one of claims 1 to 8;
the plurality of battery cell arrays are distributed, and the contact pieces of the battery cell connecting pieces are connected with the plurality of battery cell polar posts in a one-to-one correspondence manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322159711.0U CN220652271U (en) | 2023-08-10 | 2023-08-10 | Battery cell connecting sheet and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322159711.0U CN220652271U (en) | 2023-08-10 | 2023-08-10 | Battery cell connecting sheet and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220652271U true CN220652271U (en) | 2024-03-22 |
Family
ID=90289201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322159711.0U Active CN220652271U (en) | 2023-08-10 | 2023-08-10 | Battery cell connecting sheet and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220652271U (en) |
-
2023
- 2023-08-10 CN CN202322159711.0U patent/CN220652271U/en active Active
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| GR01 | Patent grant | ||
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