CN218498311U - Bus bar and battery module - Google Patents
Bus bar and battery module Download PDFInfo
- Publication number
- CN218498311U CN218498311U CN202222327833.1U CN202222327833U CN218498311U CN 218498311 U CN218498311 U CN 218498311U CN 202222327833 U CN202222327833 U CN 202222327833U CN 218498311 U CN218498311 U CN 218498311U
- Authority
- CN
- China
- Prior art keywords
- main body
- bus bar
- pole
- battery module
- body part
- Prior art date
- 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.)
- Active
Links
Images
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)
Abstract
The application discloses a bus bar and a battery module, wherein the bus bar comprises a main body part and a bending part, the main body part comprises a first connecting section and a second connecting section which are sequentially connected along the length direction of the main body part, the first connecting section is used for being connected to a first pole, and the second connecting section is used for being connected to a second pole; the bending part is connected to the side edge part in the width direction of the main body part and bends relative to the main body part, and the bending part extends along the length direction of the main body part. The main body part and the bent part of the busbar can flow over, and the flow area is large; compared with a flat-plate-shaped bus bar, the bus bar provided by the embodiment of the first aspect of the present application has a narrow width in a direction perpendicular to the main body portion, that is, a projection area in the direction perpendicular to the main body portion is small, so that a space utilization rate of the battery module can be improved, and an energy density of the battery module can be improved.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to a bus bar and a battery module.
Background
Among the power battery module, need connect through the busbar electricity between the electric core, among the correlation technique, in order to promote the current capacity of busbar, the size of busbar is great usually, and projection area is also great, leads to battery module space utilization low, and the energy density of battery module is low.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. Therefore, the present application provides a bus bar having a large flow area and a small projection area in a direction perpendicular to a main body, which can improve a space utilization rate of a battery module, thereby improving an energy density of the battery module.
The application also provides a battery module including above-mentioned busbar.
The embodiment of the first aspect of this application provides a busbar for first utmost point post and second utmost point post that the electricity connection branch was located in two batteries, the busbar includes: the main body part is arranged along the length direction of the main body part, one end of the main body part is used for being connected with the first pole, and the other end of the main body part is used for being connected with the second pole; the bending part is connected to at least one side of the main body part in the width direction, and the bending part is arranged in a bending mode relative to the main body part.
The bus bar provided by the embodiment of the first aspect of the application has at least the following beneficial effects: the busbar comprises a main body part and a bending part, the bending part is connected to the side part of the main body part in the width direction of the main body part and bends relative to the main body part, the main body part and the bending part can both flow over, and the flow area is large; compared with a flat-plate-shaped bus bar, the bus bar provided by the embodiment of the first aspect of the present application has a narrow width in a direction perpendicular to the main body portion, that is, a projection area in the direction perpendicular to the main body portion is small, so that the space utilization rate of the battery module can be improved, and the energy density of the battery module can be improved.
In some embodiments of the present application, the bending portion is connected to both sides of the main body portion in a width direction.
In some embodiments of the present application, an included angle R is formed between an extending direction of the bending portion away from the main body portion and a width direction of the main body portion, and the included angle R is greater than 0 and less than or equal to 90 °.
In some embodiments of the present application, the included angle R is 90 °.
In some embodiments of the present application, the main body portion includes a first connecting section and a second connecting section that are connected in sequence along the length direction of the main body portion, a first locating hole has been seted up to the first connecting section, a second locating hole has been seted up to the second connecting section, the position in first locating hole corresponds first utmost point post, the position in second locating hole corresponds second utmost point post.
In some embodiments of the present application, the bus bar further includes a mounting portion connected to a lengthwise end of the main body portion.
In some embodiments of the present application, a width of the main body portion is less than or equal to a width of the mounting portion.
The battery module provided by the embodiment of the second aspect of the present application comprises a battery pack and a busbar provided by any one of the embodiments of the first aspect of the present application, wherein the battery pack comprises a plurality of batteries, and the batteries are provided with the first pole and the second pole; the first pole column and the second pole column which are respectively arranged in the two adjacent batteries are electrically connected through the bus bar.
The battery module that this application second aspect embodiment provided has following beneficial effect at least: the bus bar with a large flow area and a small projection area in the direction perpendicular to the main body part is adopted, so that the space utilization rate of the battery module can be improved, and the energy density of the battery module is improved.
In some embodiments of the present application, the battery module further includes an electrical isolation plate, the electrical isolation plate is installed in the battery pack, the electrical isolation plate covers in the battery has the first terminal and the one end of the second terminal, the busbar is installed in the electrical isolation plate.
In some embodiments of this application, the battery module still includes the circuit board and gathers the piece, the circuit board with gather the piece electricity and be connected, the circuit board install in the electric division board, the both ends of busbar all are connected with gather the piece.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The present application is further described with reference to the following figures and examples, in which:
FIG. 1 is a schematic perspective view of a buss bar of some embodiments provided by a first aspect of the present application;
FIG. 2 is a top view of the buss bar shown in FIG. 1;
FIG. 3 isbase:Sub>A cross-sectional view of section A-A of FIG. 2;
fig. 4 is a perspective view of a battery module according to some embodiments provided in the second aspect of the present application;
fig. 5 is an exploded view of the battery module shown in fig. 4.
Reference numerals:
the bus bar 100, the main body 110, the first connecting section 111, the first positioning hole 1111, the first connecting section 1112, the second connecting section 112, the second positioning hole 1121, the second connecting section 1122, the bending section 120, the mounting section 130, the battery pack 200, the battery 210, the first pole 211, the second pole 212, the electrical isolation plate 300, the clamping protrusion 310, the circuit board 400, and the collecting piece 500.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the positional descriptions referred to, for example, the directions or positional relationships indicated above, below, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.
In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.
Reference throughout this specification to the description of "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1 to 3, a busbar 100 provided in an embodiment of the first aspect of the present application includes a main body 110 and a bending portion 120, where the main body 110 includes a first connecting section 111 and a second connecting section 112 sequentially connected along a length direction of the main body 110; the bending portion 120 is connected to a side portion of the main body portion 110 in the width direction of the main body portion 110, and bends relative to the main body portion 110, an included angle R is formed between the extending direction of the bending portion away from the main body portion and the width direction of the main body portion, the bending portion 120 extends along the length direction of the main body portion 110, further, the length of the bending portion 120 and the length of the main body portion 110 should be substantially the same, so that a current has a larger overcurrent area in a process of flowing from the first connecting section 111 to the second connecting section 112, thereby ensuring overcurrent capacity.
Referring to fig. 4 and 5, the bus bar 100 is used to electrically connect the first pole post 211 and the second pole post 212 separately disposed in the two batteries 210, the first connecting section 111 is used to connect to the first pole post 211, and the second connecting section 112 is used to connect to the second pole post 212. The main body 110 and the bent portion 120 of the busbar 100 can both flow over, and the flow area is large; in addition, compared with the flat-plate-shaped bus bar 100, the bus bar 100 provided by the embodiment of the first aspect of the present application has a narrower width D in a direction perpendicular to the main body portion 110, that is, a smaller projection area in the direction perpendicular to the main body portion 110, so that the space utilization rate of the battery module can be improved, and the energy density of the battery module can be improved.
Further, referring to fig. 1 to 3, the bending portion 120 is connected to both sides of the main body portion 110 in the width direction. The bent portions 120 are disposed on both sides of the main body portion 110 in the width direction, so that the flow area of the bus bar 100 can be further increased, and the flow capacity of the bus bar 100 can be further improved.
Further, referring to fig. 3, an included angle R is formed between the bending portion 120 and the main body portion 110, specifically, an included angle R is formed between an extending direction of the bending portion away from the main body portion and a width direction of the main body portion, where R is greater than 0 and less than or equal to 90 °. R is more than 0 and less than or equal to 90 degrees, the width D of the bus bar 100 in the direction perpendicular to the main body part 110 is the width of the main body part 110, and the width D of the bus bar 100 in the direction perpendicular to the main body part 110 can be reduced to the greatest extent, so that the space utilization rate of the battery module is improved to the greatest extent, and the energy density of the battery module is improved.
When the included angle R is smaller than 90 °, the bending portion 120 may shield at least a portion of the main body portion 110, so that the welding difficulty between the main body portion 110 and the first and second poles 211 and 212 is increased, and based on this, referring to fig. 3, the included angle R between the bending portion 120 and the main body portion 110 is 90 °. Set up contained angle R and be 90, can enough reduce the width D of busbar 100 in the direction of perpendicular to main part 110 to the at utmost, can expose the surface of main part 110 towards the one side of the direction of buckling of kink 120 completely again to can reduce the welding degree of difficulty of main part 110 and first utmost point post 211 and second utmost point post 212, improve the yields of battery module production.
The main body 110 and the bent portion 120 may be of an integral structure, referring to fig. 3, the junction between the main body 110 and the bent portion 120 is a curved surface, which can reduce the stress concentration of the busbar 100 and prolong the service life of the busbar 100, and the main body 110 and the bent portion 120 are smoothly connected to each other, thereby preventing an operator from being scratched by the junction between the main body 110 and the bent portion 120. Further, the edge turning points of the bus bar 100 are all provided with round corners to prevent an operator from being scratched by the edge of the bus bar 100.
The main body 110 and the bent portion 120 may be designed separately and fixed together by welding, and the specific molding method is not limited.
Referring to fig. 1 and 2, the first connecting section 111 is provided with a first positioning hole 1111, and the second connecting section 112 is provided with a second positioning hole 1121, referring to fig. 4 and 5, the first positioning hole 1111 is used for exposing the first pole 211, and the second positioning hole 1121 is used for exposing the second pole 212. When the first connection section 111 is welded to the first pole 211 and the second connection section 112 is welded to the second pole 212, the welding position can be positioned by visual positioning, and the relative position of the welding head and the bus bar 100 is positioned through the first positioning hole 1111 and the second positioning hole 1121, so as to achieve more precise welding. Referring to fig. 5, the first connection section 111 may be provided with first connection regions 1112, and specifically, the first connection regions 1112 may be respectively disposed on two sides of the first positioning hole 1111, and the first connection section 111 and the first terminal post 211 are welded at the first connection regions 1112; the second connecting section 112 may be provided with a second connecting region 1122, specifically, two sides of the second positioning hole 1121 may be provided with one second connecting region 1122, and the second connecting section 112 and the second pole 212 are welded at the second connecting region 1122.
Referring to fig. 4 and 5, a battery module according to a second embodiment of the present disclosure includes a battery pack 200 and a bus bar 100 according to any one of the first embodiments of the present disclosure, wherein the battery pack 200 includes a plurality of batteries 210, and a first pole 211 and a second pole 212 are disposed in the batteries 210; the first pole post 211 and the second pole post 212 of the two adjacent batteries 210 are electrically connected through the bus bar 100. The bus bar 100 having a large flow area and a small projected area in a direction perpendicular to the main body 110 can improve the space utilization of the battery module, thereby improving the energy density of the battery module.
It can be understood that the bus bar 100 provided in the embodiment of the first aspect of the present application may connect two batteries 210 in the same battery pack 200, or may connect two batteries 210 in two different battery packs 200, and may be configured according to actual requirements.
Referring to fig. 4 and 5, the battery module further includes an electrical isolation plate 300, the electrical isolation plate 300 is mounted to the battery pack 200, the electrical isolation plate 300 covers one end of the battery 210 having the first pole 211 and the second pole 212, and the bus bar 100 is mounted to the electrical isolation plate 300. The electrical isolation plate 300 can provide a mounting position for the bus bar 100 to facilitate the assembly of the battery module.
Referring to fig. 1 and 2, the bus bar 100 further includes a mounting portion 130, the mounting portion 130 is connected to an end of the body portion 110, and referring to fig. 4 and 5, the mounting portion 130 is engaged with the electrical isolation plate 300. Specifically, referring to fig. 4 and 5, the electrical isolation plate 300 may be provided with a snap projection 310, and when mounting, the bus bar 100 is placed at the mounting position, and the mounting portion 130 is pressed toward the battery pack 200 until the snap projection 310 abuts against the surface of the mounting portion 130 on the side away from the battery pack 200, thereby fixing the bus bar 100. The width D of the body portion is less than or equal to the width E of the mounting portion. The space utilization rate of the battery module can be improved, and therefore the energy density of the battery module is improved. When the main part and the bending part are integrally formed, a gap is formed between the main part and the mounting part.
Referring to fig. 4 and 5, the battery module further includes a circuit board 400 and a collecting sheet 500, the circuit board 400 is electrically connected to the collecting sheet 500, the circuit board 400 is mounted on the electrical isolation plate 300, the collecting sheet 500 is connected to both ends of the bus bar 100, specifically, the mounting portion 130 is connected to both ends of the main body portion 110, and the collecting sheet 500 is connected to the mounting portion 130. The circuit board 400 can acquire the voltage across the bus bar 100 through the acquisition sheet 500 to know the operating state of the battery 210.
The bus bar 100 provided in the first embodiment of the present application is described as an embodiment, and it should be noted that the following is only an example and is not a limitation to the present application.
The busbar 100 includes a main body 110, a bending portion 120 and an installation portion 130, the main body 110 includes a first connection section 111 and a second connection section 112 sequentially connected along a length direction of the main body 110, the first connection section 111 is provided with a first positioning hole 1111, and the second connection section 112 is provided with a second positioning hole 1121; the two bending portions 120 are respectively connected to two sides of the main body portion 110 in the width direction of the main body portion 110, and bent relative to the main body portion 110, and the bending portions 120 extend along the length direction of the main body portion 110; two mounting portions 130 are provided, and the two mounting portions 130 are connected to both ends of the body portion 110, respectively.
The bus bar 100 is made of aluminum, and the main body 110, the bent portion 120 and the mounting portion 130 are integrally formed. An included angle R between the main body 110 and the bending portion 120 is 90 °; the thicknesses of the main body 110, the bending part 120 and the mounting part 130 are all 1.5mm; the length of the main body 110 is 57mm, the width D is 10.4mm, and the first positioning hole 1111 and the second positioning hole 1121 are both circular holes with a diameter of 3 mm; the height of the bent portion 120 is 8.5mm; the mounting portion 130 has a length of 14.5mm and a width E of 12.4mm. The main body 110 is smoothly connected to the bent portion 120, and the edge turning portions of the bent portion 120 and the mounting portion 130 have rounded corners.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Claims (10)
1. The busbar for the electricity is connected and is divided first utmost point post and the second utmost point post of locating in two batteries, its characterized in that, the busbar includes:
the main body part is arranged along the length direction of the main body part, one end of the main body part is used for being connected with the first pole, and the other end of the main body part is used for being connected with the second pole;
the bending part is connected to at least one side of the main body part in the width direction, and the bending part is arranged in a bending mode relative to the main body part.
2. The busbar according to claim 1, wherein the bent portion is connected to both sides in a width direction of the main body portion.
3. The busbar according to claim 1, wherein an included angle R is formed between the extending direction of the bent portion away from the main body portion and the width direction of the main body portion, and the included angle R is greater than 0 and less than or equal to 90 °.
4. The buss bar of claim 3, wherein the included angle R is 90 °.
5. The busbar according to claim 1, wherein the main body includes a first connecting section and a second connecting section sequentially connected along a length direction of the main body, the first connecting section defines a first positioning hole, the second connecting section defines a second positioning hole, the first positioning hole corresponds to the first pole, and the second positioning hole corresponds to the second pole.
6. The busbar according to claim 1, further comprising a mounting portion connected to a lengthwise end of the main body portion.
7. The buss bar of claim 6, wherein the width of the body portion is less than or equal to the width of the mounting portion.
8. Battery module, its characterized in that includes:
the battery pack comprises a plurality of batteries, and a first pole and a second pole are arranged in each battery;
the busbar of any one of claims 1 to 7, the first and second poles disposed in adjacent two of the cells being electrically connected by the busbar.
9. The battery module according to claim 8, further comprising an electrical isolation plate mounted to the battery pack, the electrical isolation plate covering an end of the battery having the first terminal post and the second terminal post, the bus bar being mounted to the electrical isolation plate.
10. The battery module according to claim 9, further comprising a circuit board and a collecting piece, wherein the circuit board is electrically connected to the collecting piece, the circuit board is mounted on the electrical isolation plate, and the collecting piece is connected to both ends of the bus bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222327833.1U CN218498311U (en) | 2022-08-31 | 2022-08-31 | Bus bar and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222327833.1U CN218498311U (en) | 2022-08-31 | 2022-08-31 | Bus bar and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218498311U true CN218498311U (en) | 2023-02-17 |
Family
ID=85189051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222327833.1U Active CN218498311U (en) | 2022-08-31 | 2022-08-31 | Bus bar and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218498311U (en) |
-
2022
- 2022-08-31 CN CN202222327833.1U patent/CN218498311U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210066700A1 (en) | Single-cell battery, battery module, power battery and electric vehicle | |
| JP7434350B2 (en) | Battery units and battery modules | |
| EP3764422B1 (en) | Sampling circuit board for battery module, and battery module | |
| CN109950448B (en) | Soft package lithium battery module | |
| EP3905363B1 (en) | Battery module | |
| CN213043009U (en) | Battery module and battery pack | |
| CN218498311U (en) | Bus bar and battery module | |
| CN213782207U (en) | Bus bar, battery module and power battery | |
| CN110492278B (en) | Bus bar, battery module with bus bar, battery system and electric vehicle | |
| CN219575873U (en) | Battery assembly | |
| CN111640896A (en) | Battery module frame and battery module | |
| CN112582690A (en) | Flexible circuit board, die-cut substrate, and battery device | |
| CN115566369A (en) | Battery module | |
| CN115275527A (en) | Battery module and power battery comprising same | |
| CN214899227U (en) | Lead-out busbar and battery pack | |
| EP3754747B1 (en) | Bus bar module | |
| CN220895760U (en) | Battery module and battery pack | |
| CN220042207U (en) | Battery and battery device | |
| CN220627879U (en) | Battery module and battery pack | |
| CN217848131U (en) | Collection assembly and battery cell stacking structure | |
| CN220138614U (en) | Busbar combination and battery pack | |
| CN115498368B (en) | Battery cell connection structure, connection method thereof, battery cell unit and battery module | |
| CN216389648U (en) | Battery cell connecting mechanism and cell module | |
| CN219180716U (en) | Connecting assembly, battery cell assembly with same, battery pack and vehicle | |
| CN219203425U (en) | Output polar plate, output polar assembly, battery module, energy storage device and electric equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |