CN219436081U - Multifunctional busbar and square battery - Google Patents
Multifunctional busbar and square battery Download PDFInfo
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- CN219436081U CN219436081U CN202320616834.XU CN202320616834U CN219436081U CN 219436081 U CN219436081 U CN 219436081U CN 202320616834 U CN202320616834 U CN 202320616834U CN 219436081 U CN219436081 U CN 219436081U
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- elastic deformation
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- 230000005489 elastic deformation Effects 0.000 claims abstract description 81
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to the technical field of batteries, and particularly discloses a multifunctional busbar and a square battery, wherein in the multifunctional busbar, a first stacking connecting piece comprises a first elastic deformation part and a first connecting part, a plurality of first connecting parts are arranged at intervals along the X direction, any two adjacent first connecting parts are connected through the first elastic deformation part, and the first connecting part is used for connecting a first battery cell module; the second stacking connecting piece comprises a second elastic deformation part and two connecting parts, a plurality of second connecting parts are arranged at intervals along the X direction, any two adjacent second connecting parts are connected through the second elastic deformation part, and the second connecting parts are used for connecting a second cell module; the first elastic deformation part is provided with a first opening, and the second elastic deformation part is provided with a second opening; the first stacking connecting piece and the second stacking connecting piece are arranged at intervals along the Y direction and are connected through the third elastic deformation part. The arrangement solves the problems of cold joint and off-joint between the multifunctional busbar and the battery core electrode post.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a multifunctional bus bar and a square battery.
Background
The power battery pack is required to have a regular shape, wherein the square-shell power battery module is most popular by virtue of the characteristic of being conveniently installed in a vehicle frame or a trunk, and a bus bar is a part of a power battery and is used for connecting adjacent cell modules in the square-shell power battery module in series, so that the current bus bar is designed to be a single arch bridge only in the stacking direction of the cell modules, and the following defects exist in the design:
1. the aluminum bus bars between the parallel cell modules cannot absorb the expansion amount of the cell modules in the parallel direction, so that the cell terminal posts and the bus bars are subjected to desoldering, wherein the parallel direction is perpendicular to the stacking direction.
2. The single arch bridge design has extremely high requirements on the flatness between two cell modules in the stacking direction, and insufficient flatness of the cell poles of the two cell modules can lead to the desoldering between the cell poles and the bus bars.
Therefore, it is necessary to study a multifunctional bus bar to solve the problem of the desoldering between the cell post and the bus bar.
Disclosure of Invention
The utility model aims to provide a multifunctional bus bar and a square battery, which are used for solving the problems of cold joint and cold joint between a battery core pole and the bus bar.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in one aspect, the present utility model provides a multifunctional bus comprising:
the first stacking connecting piece comprises a first elastic deformation part and first connecting parts, wherein a plurality of first connecting parts are arranged at intervals along the X direction, any two adjacent first connecting parts are connected through the first elastic deformation part, and the first connecting parts are used for connecting a first battery cell module;
the second stacking connecting pieces comprise second elastic deformation parts and second connecting parts, a plurality of second connecting parts are arranged at intervals along the X direction, any two adjacent second connecting parts are connected through the second elastic deformation parts, and the second connecting parts are used for connecting a second cell module;
the first elastic deformation part is provided with a first opening, and the second elastic deformation part is provided with a second opening;
and the first stacking connecting pieces and the second stacking connecting pieces are arranged at intervals along the Y direction and are connected through the third elastic deformation parts, and the X direction is perpendicular to the Y direction.
As an alternative technical scheme of the multifunctional bus bar, the first elastic deformation part is of an arch structure, and the second elastic deformation part is of an arch structure.
As an alternative solution of the multifunctional bus bar, the opening direction of the first elastic deformation portion is the same as the opening direction of the second elastic deformation portion.
As an alternative solution of the multifunctional busbar, the first elastic deformation portion is communicated with the second elastic deformation portion.
As an alternative technical scheme of the multifunctional bus bar, the opening direction of the first opening is away from the second stacking connecting piece, and the opening direction of the second opening is away from the first stacking connecting piece.
As an alternative technical scheme of the multifunctional bus bar, the first connecting part is provided with a first connecting hole, and the first connecting part is connected with the first cell module through the first connecting hole; the second connecting part is provided with a second connecting hole, and the second connecting part is connected with the second cell module through the second connecting hole.
As an alternative solution of the multifunctional bus bar, at least one of the first connection hole and the second connection hole is a bar-shaped hole extending along the X direction.
As an alternative technical scheme of the multifunctional busbar, the first stacking connecting piece comprises two first connecting portions, the second stacking connecting piece comprises two second connecting portions, and the first elastic deformation portions, the second elastic deformation portions and the third elastic deformation portions are crossed to form a cross arch bridge.
As an alternative solution of the multifunctional bus bar, the third elastic deformation portion is in an arch structure.
On the other hand, the utility model provides a square battery, which comprises a battery string and the multifunctional bus bar in any scheme, wherein the battery string comprises a first battery cell module and a second battery cell module which are arranged in a matrix.
The beneficial effects of the utility model are as follows:
the utility model provides a multifunctional bus bar and a square battery, wherein the multifunctional bus bar is provided with a first stacking connecting piece and a second stacking connecting piece, the first stacking connecting piece comprises two first connecting parts which are arranged at intervals along the X direction, and the two first connecting parts are connected through a first elastic deformation part so as to adapt to the expansion amount between two first battery cell modules along the X direction; the second stacking connecting piece comprises two second connecting parts which are arranged at intervals along the X direction, and the two second connecting parts are connected through a second elastic deformation part so as to adapt to the expansion amount between the two second cell modules arranged along the X direction; the first stacking connecting piece and the second stacking connecting piece which are arranged at intervals along the Y direction are connected through the third elastic deformation part so as to adapt to the expansion amount between the first battery cell module and the second battery cell module which are arranged along the Y direction; first opening has been seted up through at first elastic deformation portion, second opening has been seted up at second elastic deformation portion to the flatness difference of the electric core utmost point post of two first electric core modules that adaptation set up along the X direction and the flatness difference of the electric core utmost point post of two second electric core modules that set up along the X direction. The arrangement solves the problem of cold joint and cold joint between the battery core pole and the busbar.
Drawings
FIG. 1 is a schematic diagram illustrating a first view of a multi-function bus according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram illustrating a structure of a multifunctional bus according to a second view angle of the embodiment of the utility model;
FIG. 3 is a schematic diagram illustrating a third view of a multi-function bus according to an embodiment of the present utility model;
fig. 4 is a schematic structural view of a square battery according to an embodiment of the present utility model;
fig. 5 is a schematic view showing a partial structure of a square battery according to an embodiment of the present utility model.
In the figure:
100. a first cell module; 200. a second cell module;
1. a first stacking connection; 11. a first elastic deformation portion; 12. a first connection portion; 121. a first connection hole; 13. a first opening;
2. a second stacking connection; 21. a second elastic deformation portion; 22. a second connecting portion; 221. a second connection hole; 23. a second opening;
3. and a third elastic deformation portion.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Example 1
As shown in fig. 1 to 5, the present embodiment provides a multifunctional bus bar, which includes a first stacking connector 1, a second stacking connector 2, and a third elastic deformation portion 3, wherein the first stacking connector 1 includes a first elastic deformation portion 11 and a first connection portion 12, a plurality of first connection portions 12 are disposed at intervals along the X direction, and any two adjacent first connection portions 12 are connected by the first elastic deformation portion 11, and the first connection portion 12 is used for connecting the first cell module 100; the second stacking connection piece 2 comprises a second elastic deformation part 21 and a second connection part 22, a plurality of second connection parts 22 are arranged at intervals along the X direction, any two adjacent second connection parts 22 are connected through the second elastic deformation part 21, and the second connection parts 22 are used for connecting the second cell module 200; the first elastic deformation part 11 is provided with a first opening 13, and the second elastic deformation part 21 is provided with a second opening 23; the first stacking link 1 and the second stacking link 2 are disposed at intervals in the Y direction, and are connected by the third elastic deformation portion 3, and the X direction is perpendicular to the Y direction.
In the multifunctional bus bar, the first stacking connector 1 comprises two first connecting parts 12 which are arranged at intervals along the X direction, and the two first connecting parts 12 are connected through a first elastic deformation part 11 so as to adapt to the expansion amount between the two first cell modules 100 along the X direction; the second stacking connection piece 2 comprises two second connection parts 22 which are arranged at intervals along the X direction, and the two second connection parts 22 are connected through a second elastic deformation part 21 so as to adapt to the expansion amount between the two second battery cell modules 200 arranged along the X direction; the first stacking connection member 1 and the second stacking connection member 2 which are arranged at intervals along the Y direction are connected by the third elastic deformation portion 3 so as to adapt to the expansion amount between the first cell module 100 and the second cell module 200 which are arranged along the Y direction; by adapting to the expansion quantity in the X direction and the Y direction, the problem of cold joint and cold joint between the multifunctional busbar and the cell module is solved, and the reliability, the stability and the durability of the product are improved. Through having seted up first opening 13 at first elastic deformation portion 11, having seted up second opening 23 at second elastic deformation portion 21 to the flatness difference of the electric core post of two first electric core modules 100 that adaptation set up along the X direction and the flatness difference of the electric core post of two second electric core modules 200 that set up along the X direction.
The first elastic deformation portion 11 has an arch structure, and the second elastic deformation portion 21 has an arch structure. In other embodiments, the first elastically deforming part 11 has a wave-shaped structure, and the second elastically deforming part 21 has a wave-shaped structure, and the number of specific waves may be determined according to the size of the gap between two adjacent first cell modules 100 in the stacking direction.
For ease of understanding, in this embodiment, the first elastically deforming part 11 and the second elastically deforming part 21 are each described as being in an arch structure.
The opening direction of the first elastic deformation portion 11 is the same as the opening direction of the second elastic deformation portion 21. Specifically, the opening direction of the first elastic deformation portion 11 faces away from the first cell module 100, and the opening direction of the second elastic deformation portion 21 faces away from the second cell module 200. In other words, the first elastic deformation portion 11 protrudes toward the gap between two adjacent first cell modules 100, and the second elastic deformation portion 21 protrudes toward the gap between two adjacent second cell modules 200. This arrangement allows the arch structure to not add additional height dimension to the power cell. By means of the arrangement of the structure, when the multifunctional bus bar is connected with the cell modules, the elastic deformation parts can be located in gaps of the adjacent cell modules, and the height dimension of the battery is not increased.
In order to facilitate the elastic deformation, in this embodiment, the cross-sectional shape of the first elastic deformation portion 11 is an arc-shaped groove structure; the second elastically deforming part 21 has an arc-shaped groove-like structure in cross-sectional shape. In other embodiments, the cross-sectional shape of the first elastically deforming part 11 is a square groove-like structure; the second elastically deforming part 21 has a square groove-like structure in cross-sectional shape.
The first elastic deformation portion 11 and the second elastic deformation portion 21 communicate. The setting can adapt to the cross gap that a plurality of electric core modules formed, and the processing of being convenient for. In addition, the first elastically deforming part 11 and the second elastically deforming part 21 that are in communication contribute to an increase in overall strength.
Regarding the opening directions of the first opening 13 and the second opening 23, in this embodiment, the opening direction of the first opening 13 faces away from the second stacking connector 2, and the opening direction of the second opening 23 faces away from the first stacking connector 1. I.e. the opening directions of the first opening 13 and the second opening 23 are arranged opposite to each other. In other embodiments, the opening directions of the first opening 13 and the second opening 23 may be opposite to each other. Wherein the length of the first opening 13 along the X direction is a1, the length of the first connecting portion 12 along the X direction is b1, c1=a1/b 1, and 0.9 is greater than or equal to c1 and greater than or equal to 0.5. The length of the second opening 23 along the X direction is a2, the length of the first connecting portion 12 along the X direction is b2, c2=a2/b 2, and 0.9 is greater than or equal to c2 is greater than or equal to 0.5.
For convenience of welding, in this embodiment, the first connection portion 12 is provided with a first connection hole 121, and the first connection portion 12 is connected to the first cell module 100 through the first connection hole 121; the second connection part 22 is provided with a second connection hole 221, and the second connection part 22 is connected with the second cell module 200 through the second connection hole 221.
In order to solve the problem that at least one of the first connection hole 121 and the second connection hole 221 is a bar-shaped hole extending along the X direction, at least one of the first connection hole 121 and the second connection hole 221 cannot be aligned with the cell post hole of the first cell module 100 due to tolerance stack of the cells in the stacking direction, which causes a soldering cold joint or even failure. Specifically, the first connection hole 121 and the second connection hole 221 are each a bar-shaped hole extending in the X direction. The arrangement improves the compatibility of the multifunctional bus.
It should be noted that, the first connection portion 12 and the cell terminal are well known to those skilled in the art at the first connection hole 121, and the second connection portion 22 and the cell terminal are well known to those skilled in the art at the second connection hole 221, and the specific connection manner is not described herein.
In this embodiment, the first stacking connector 1 includes two first connecting portions 12, the second stacking connector 2 includes two second connecting portions 22, and the first elastic deformation portion 11, the second elastic deformation portion 21, and the third elastic deformation portion 3 intersect to form a cross arch bridge. Specifically, the first elastic deformation portion 11, the second elastic deformation portion 21, and the third elastic deformation portion 3 intersect to form a cross arch bridge, and the first elastic deformation portion 11 and the second elastic deformation portion 21 are located on both sides of the third elastic deformation portion 3. In other embodiments, the first stacking connector 1 may comprise three, four or even ten first connecting portions 12 and the second stacking connector 2 may comprise three, four or even ten second connecting portions 22. Specifically, the number may be set according to the number and arrangement of the first and second battery cell modules 100 and 200.
The third elastic deformation portion 3 has an arch structure. In other embodiments, the third elastically deformable portion 3 may be wavy, and the number of specific waves may be determined according to the size of the gap between the first cell module 100 and the second cell module 200 in the juxtaposition direction.
In this embodiment, at least one end of the third elastic deformation portion 3 is provided with a third opening. Specifically, both ends of the third elastic deformation portion 3 are provided with third openings. The third notch is configured to accommodate the difference in flatness between the cell posts of the two adjacent first cell modules 100 and the cell posts of the second cell module 200 in the parallel direction. The flatness difference refers to the top surfaces of the cell posts of the first cell module 100 and the top surfaces of the cell posts of the second cell module 200 not being coplanar.
In this embodiment, the first stacking connector 1, the second stacking connector 2, and the third elastic deformation portion 3 are integrally formed. The first elastic deformation portion 11, the second elastic deformation portion 21, and the third elastic deformation portion 3 are prepared by a press working process, which has the advantages of high precision, good stability, and high surface quality.
The multifunctional bus bar is made of aluminum, specifically, the multifunctional bus bar is in an AL1060-O state (one state of an aluminum plate, and O is in an annealing state, namely, a full soft state, and is suitable for a processed product with the lowest strength obtained through full annealing), and has high extensibility and tensile strength.
The stacking direction is the X direction and the parallel direction is the Y direction. The power battery is formed by arranging a first cell module 100 and a second cell module 200 in a matrix.
Example two
As shown in fig. 4 and fig. 5, the present embodiment further provides a prismatic battery, which includes a battery string and the multifunctional bus bar in the above scheme, where the battery string includes a first cell module 100 and a second cell module 200 that are arranged in a matrix. The first battery core modules 100 and the second battery core modules 200 are respectively provided with two, the two first battery core modules 100 are stacked along the X direction to form a first assembly, the two second battery core modules 200 are stacked along the X direction to form a second assembly, and the first assembly and the second assembly are parallel along the Y direction to form a battery string.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. The multifunctional bus bar is characterized by comprising:
the first stacking connecting piece (1), the first stacking connecting piece (1) comprises a first elastic deformation part (11) and a first connecting part (12), a plurality of first connecting parts (12) are arranged at intervals along the X direction, any two adjacent first connecting parts (12) are connected through the first elastic deformation part (11), and the first connecting parts (12) are used for connecting a first cell module (100);
the second stacking connecting pieces (2), the second stacking connecting pieces (2) comprise second elastic deformation parts (21) and second connecting parts (22), a plurality of the second connecting parts (22) are arranged at intervals along the X direction, any two adjacent second connecting parts (22) are connected through the second elastic deformation parts (21), and the second connecting parts (22) are used for connecting a second battery cell module (200);
the first elastic deformation part (11) is provided with a first opening (13), and the second elastic deformation part (21) is provided with a second opening (23);
and the first stacking connecting pieces (1) and the second stacking connecting pieces (2) are arranged at intervals along the Y direction and are connected through the third elastic deformation parts (3), and the X direction is perpendicular to the Y direction.
2. The multifunctional busbar according to claim 1, characterized in that the first elastically deformable portion (11) is arched and the second elastically deformable portion (21) is arched.
3. The multifunctional busbar according to claim 2, characterized in that the opening direction of the first elastically deforming part (11) is the same as the opening direction of the second elastically deforming part (21).
4. A multifunctional busbar according to claim 3, wherein the first elastically deformable portion (11) and the second elastically deformable portion (21) are in communication.
5. The multifunctional busbar according to claim 1, characterized in that the opening direction of the first cutout (13) faces away from the second stacked connection (2), and the opening direction of the second cutout (23) faces away from the first stacked connection (1).
6. The multifunctional busbar according to any one of claims 1 to 5, characterized in that the first connection portion (12) is provided with a first connection hole (121), the first connection portion (12) being connected to the first cell module (100) through the first connection hole (121); the second connecting part (22) is provided with a second connecting hole (221), and the second connecting part (22) is connected with the second cell module (200) through the second connecting hole (221).
7. The multifunctional buss bar according to claim 6, characterized in that at least one of the first connection hole (121) and the second connection hole (221) is a bar-shaped hole extending in the X-direction.
8. The multifunctional busbar according to any one of claims 1 to 5, characterized in that the first stacking connection (1) comprises two of the first connection portions (12), the second stacking connection (2) comprises two of the second connection portions (22), and the first elastically deformed portions (11), the second elastically deformed portions (21) and the third elastically deformed portions (3) intersect to form a cross arch bridge.
9. The multifunctional busbar according to any one of claims 1 to 5, characterized in that the third elastically deformable portion (3) has an arched structure.
10. Square cell, characterized in that it comprises a string of cells comprising a first cell module (100) and a second cell module (200) arranged in a matrix, and a multifunctional buss bar according to any of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320616834.XU CN219436081U (en) | 2023-03-27 | 2023-03-27 | Multifunctional busbar and square battery |
| PCT/CN2023/096581 WO2024027300A1 (en) | 2023-03-27 | 2023-05-26 | Multifunctional busbar and prismatic battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320616834.XU CN219436081U (en) | 2023-03-27 | 2023-03-27 | Multifunctional busbar and square battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219436081U true CN219436081U (en) | 2023-07-28 |
Family
ID=87330727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320616834.XU Active CN219436081U (en) | 2023-03-27 | 2023-03-27 | Multifunctional busbar and square battery |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN219436081U (en) |
| WO (1) | WO2024027300A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204271173U (en) * | 2014-12-16 | 2015-04-15 | 苏州易美新思新能源科技有限公司 | A kind of bus-bar supporting power brick high-power applications |
| JP7009848B2 (en) * | 2017-09-05 | 2022-01-26 | 株式会社デンソー | Battery module |
| CN210723206U (en) * | 2019-11-29 | 2020-06-09 | 蜂巢能源科技有限公司 | Busbar subassembly, battery module and battery package |
| CN214797650U (en) * | 2021-05-31 | 2021-11-19 | 蜂巢能源科技有限公司 | Busbar, battery module and electric vehicle |
-
2023
- 2023-03-27 CN CN202320616834.XU patent/CN219436081U/en active Active
- 2023-05-26 WO PCT/CN2023/096581 patent/WO2024027300A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024027300A1 (en) | 2024-02-08 |
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