CN220306460U - Busbar assembly and battery comprising same - Google Patents
Busbar assembly and battery comprising same Download PDFInfo
- Publication number
- CN220306460U CN220306460U CN202223590997.XU CN202223590997U CN220306460U CN 220306460 U CN220306460 U CN 220306460U CN 202223590997 U CN202223590997 U CN 202223590997U CN 220306460 U CN220306460 U CN 220306460U
- Authority
- CN
- China
- Prior art keywords
- bus bar
- accommodating groove
- busbar
- assembly
- bracket
- 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.)
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Links
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000452 restraining effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 230000004308 accommodation Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction 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)
Abstract
The utility model discloses a busbar assembly for a power battery and a battery comprising the same. The busbar assembly includes: the bus bar bracket is provided with an accommodating groove for accommodating the bus bar, the bottom width of the accommodating groove is larger than the opening width, and the first end of the accommodating groove forms an inserting port; and a bus bar, at least a part of which is matched with the width of the accommodating groove, and at least a part of which is insertable into the accommodating groove from the insertion opening. According to the utility model, the bus bar is inserted into the accommodating groove on the bus bar bracket in an inserting manner, so that reliable connection is formed, the risk of detachment caused by vibration impact in the using process is avoided, the safety of the bus bar assembly is improved, the structure is simple, the assembly is convenient, and the working efficiency is greatly improved.
Description
Technical Field
The utility model relates to the technical field of power batteries, in particular to a busbar assembly for a power battery and a battery comprising the busbar assembly.
Background
In the soft package battery module for new energy automobile, can set up the busbar subassembly in the utmost point ear side of electric core and realize the electricity connection between each soft package electric core generally, the busbar support still plays the effect of supporting fixed busbar simultaneously, and current busbar and the fixed mode between the busbar support have hot rivet post and buckle etc. generally.
When the assembly between busbar components is carried out by adopting the hot riveting column structure, the hot riveting column is very thin, and the contact place of the hot riveting head and the hot riveting column is very weak, so that the hot riveting column is easy to break in the assembly and transportation processes. Similarly, if fastening is performed by means of a snap, the snap structure is also at risk of breaking when a vibration impact occurs. After the fixed structure breaks, the bus bars are separated from each other, and the lugs are torn to influence the safety performance of the battery module.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a bus bar assembly and a battery comprising the same, which can reliably connect the lugs of a plurality of battery cores, reduce the risk of separation of a bus bar and a bus bar bracket and improve the use safety and the assembly efficiency of the bus bar assembly.
In order to solve the above technical problems, the present utility model provides a bus bar assembly, including:
the bus bar bracket is provided with an accommodating groove for accommodating the bus bar, the bottom width of the accommodating groove is larger than the opening width, and the first end of the accommodating groove forms an inserting port;
and a bus bar, at least a part of which is matched with the width of the accommodating groove, and at least a part of which is insertable into the accommodating groove from the insertion opening.
Further, a first locking structure is arranged in the accommodating groove, and a second locking structure matched with the first locking structure is arranged on the busbar.
Further, the thickness of the bus bar middle body part is greater than the depth of the receiving groove.
Further, the cross section of the accommodating groove is one of the following shapes:
a trapezoid;
the lower part is trapezoid, and the upper part is rectangular;
the lower part is rectangular, the upper part is rectangular, and the width of the lower part rectangle is larger than that of the upper part rectangle.
Further, a baffle is further arranged on the busbar bracket, the baffle is arranged at the second end of the accommodating groove, at least one part of the baffle extends to the opening of the accommodating groove, and a limit column is arranged on one side of the baffle facing the accommodating groove to form the second locking structure; and the busbar is provided with a limiting hole to form the first locking structure.
Further, the end face of the busbar, which is inserted into the accommodating groove first, is provided with a guide structure.
Further, openings are formed in the baffle plates on two sides of the limiting column.
Further, a through hole is formed in the busbar bracket.
Further, the busbar support is of an integral structure.
Further, the bus bar is made of copper or copper nickel plating material.
The utility model also provides a battery comprising the busbar assembly.
The bus bar component and the battery comprising the bus bar component are inserted into the accommodating groove on the bus bar bracket in an inserting mode, the contact area of the bus bar and the accommodating groove is large, reliable limit connection is formed, the risk that the bus bar is separated from the bus bar bracket due to vibration impact in the using process is avoided, the safety performance of the bus bar component is improved, the structure of the bus bar component is simple, the assembly is convenient, and the working efficiency is greatly improved.
Drawings
FIG. 1 is an exploded perspective view of one embodiment of a bus bar assembly according to the present utility model.
FIG. 2 is a schematic diagram showing the assembly of the bus bar assembly according to the embodiment shown in FIG. 1.
Fig. 3 is a side cross-sectional view of the combined state of the busbar assembly of the embodiment shown in fig. 1.
Fig. 4 is a partial enlarged view at a in fig. 3.
FIG. 5 is a schematic cross-section of an embodiment of a receiving slot and buss bar of the present utility model.
Fig. 6 is a schematic cross-section of another embodiment of the receiving slot and buss bar of the present utility model.
Fig. 7 is a schematic cross-section of a further embodiment of the receiving slot and buss bar of the present utility model.
In the figure: 1. the bus bar comprises a bus bar body, a bus bar support, a baffle plate, an extension part, an opening, a receiving groove, an insertion opening, a through hole, a limit post and a guide structure.
Description of the embodiments
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
As shown in fig. 1 and 2, a bus bar assembly according to an embodiment of the present utility model includes:
a busbar bracket 2, wherein an accommodating groove 4 for accommodating the busbar 1 is arranged on the busbar bracket 2, the bottom width of the accommodating groove 4 is larger than the opening width, and an inserting port 41 is formed at the first end of the accommodating groove 4;
the bus bar 1, at least a portion of the bus bar 1 has a width matching the width of the accommodation groove 4, and at least a portion of the bus bar 1 is insertable into the accommodation groove 4 from the insertion port 41.
In assembly, the bus bar 1 is slidably inserted into the accommodating groove 4 from the insertion opening 41 at the first end of the accommodating groove 4, thereby connecting the bus bar and the bus bar bracket together. Because the contact area between the busbar 1 and the accommodating groove 4 is large, the busbar is not easy to damage, the risk that the busbar is separated from the busbar bracket due to vibration impact in the use process is avoided, and the safety performance of the busbar assembly is improved. In addition, the busbar 1 and the busbar bracket 2 in the busbar assembly are connected in a sliding insertion mode, so that the assembly is convenient, and the working efficiency is greatly improved.
As an embodiment of the present utility model, a first locking structure is provided in the receiving groove 4, and a second locking structure cooperating with the first locking structure is provided on the bus bar 1. After the bus bar 1 is inserted to a predetermined position, the bus bar is fixed by cooperation of the first locking structure and the second locking structure. At this time, the bus bar 1 is restricted by both side walls of the accommodation groove 4 in the width direction; and is limited in the length direction by the locking force between the first locking structure and the second locking structure, the bus bar 1 can be securely restrained in the receiving groove 4.
In addition, since it is not difficult to overcome the locking force between the first locking structure and the second locking structure by simultaneously receiving the frictional force between the bus bar 1 and the receiving groove 4, the force generated by vibration in general transportation or use is insufficient to achieve the result. And, even if the locking force between the first locking structure and the second locking structure is overcome, to separate the bus bar 1 from the bus bar bracket 2, it is necessary to slide the bus bar 1 within the receiving groove 4 by a large distance, and in actual use, the bus bar 1 is also limited by other structures, so that the bus bar 1 cannot generally slide by a large distance, and thus cannot be separated from the bus bar bracket 2, and can be locked again by the first locking structure and the second locking structure. Further improving the safety performance of the busbar assembly.
In one embodiment of the present utility model, the thickness of the middle body portion of the bus bar 1 is greater than the depth of the receiving groove 4. Thus, when the bus bar 1 is inserted into the accommodating groove 4, one surface of the middle main body part protrudes out of the surface of the bus bar bracket 2, so that the electrode tab of the battery cell can be conveniently welded.
In one embodiment of the present utility model, as shown in fig. 5, the receiving groove 4 has a trapezoidal cross section. Accordingly, the lower part of the cross section of the busbar 1 corresponding to the portion of the accommodation groove 4 is trapezoidal, and the shape and the size of the portion are matched with those of the cross section of the accommodation groove 4; the upper part of the cross section of the bus bar 1 corresponding to the accommodating groove 4 is rectangular, so that the whole thickness of the middle main body part of the bus bar 1 is larger than the depth of the accommodating groove 4, and the part protrudes out of the surface of the bus bar bracket 2 after the bus bar 1 is inserted into the accommodating groove 4.
In another embodiment of the present utility model, as shown in fig. 6, the receiving groove 4 has a trapezoidal cross section at a lower portion and a rectangular cross section at an upper portion. Accordingly, the lower part of the cross section of the portion of the busbar 1 corresponding to the accommodation groove 4 is trapezoidal, and the upper part is rectangular, and its shape and size substantially match those of the cross section of the accommodation groove 4. Wherein, the height of the rectangular part of the busbar 1 is larger than that of the rectangular part of the accommodating groove 4, so that the whole thickness of the middle main body part of the busbar 1 is larger than that of the accommodating groove 4, and the part protrudes out of the surface of the busbar bracket 2 after the busbar 1 is inserted into the accommodating groove 4.
In still another embodiment of the present utility model, as shown in fig. 7, the receiving groove 4 has a rectangular cross section at a lower portion, and a rectangular upper portion, and the width of the rectangular lower portion is larger than that of the rectangular upper portion. Accordingly, the lower part and the upper part of the cross section of the portion of the busbar 1 corresponding to the accommodation groove 4 are rectangular, and the dimension in the width direction thereof is matched with the accommodation groove 4. In the height direction, the height of the lower rectangle of the busbar 1 is consistent with the height of the lower rectangle of the accommodating groove 4, the height of the upper rectangle of the busbar 1 is larger than the height of the upper rectangle of the accommodating groove 4, the whole thickness of the middle main body part of the busbar 1 is larger than the depth of the accommodating groove 4, and after the busbar 1 is inserted into the accommodating groove 4, the part protrudes out of the surface of the busbar bracket 2.
The above-described structures can each achieve a restriction of the bus bar in the thickness direction in the accommodation groove, and the surface thereof can protrude from the bus bar holder surface while allowing the bus bar to slide in the length direction in the accommodation groove. It will be appreciated by those skilled in the art that other structures besides those described above may be configured to achieve the above effects, and are within the scope of the present utility model.
In one embodiment of the present utility model, the busbar bracket 2 is further provided with a baffle plate 3, the baffle plate 3 is arranged at the second end of the accommodating groove 4, at least a part of the baffle plate 3 extends to the opening of the accommodating groove 4 to form an extension part 31, one side of the extension part 31 facing the accommodating groove 4 is provided with a limit post 7, and the limit post 7 forms a second locking structure; the busbar 1 is provided with a limiting hole 6, and the limiting hole 6 forms a first locking structure. The positions of the limiting holes 6 on the busbar 1 are as follows: when the bus bar 1 is inserted into the preset position in the accommodating groove 4, the limit holes 6 are just aligned with the limit posts 7 on the baffle plate, so that the limit posts 7 can be inserted into the limit holes 6, and the relative locking of the bus bar 1 and the bus bar bracket 2 is realized. Wherein the end face of the busbar 1, which is first inserted into the receiving groove 4, is provided with a guide structure 8. When the bus bar 1 is inserted into the accommodating groove 4, the guide structure 8 firstly contacts the limit post 7 on the baffle plate, the limit post 7 is outwards propped open, when the bus bar 1 is continuously inserted into a preset position, the limit hole 6 on the bus bar 1 is aligned with the limit post 7, the limit post 7 is reset under the elastic action of the baffle plate 3 and is inserted into the limit hole 6, and the locking of the bus bar 1 is completed. In this embodiment, the guide structure 8 is an arcuate end surface. In other embodiments, the guide structure may also be a ramp or the like.
In the embodiment of the present utility model, the guide structure 8 is not limited to be formed at the portion corresponding to the stopper post 7, and the guide structure 8 may be formed on the entire end surface of the bus bar 1, which is first inserted into the accommodating groove 4. The guiding structure 8 not only can be used for pushing the limit post 7, but also can be used for guiding when the busbar 1 is inserted into the accommodating groove 4 from the inserting port 41, so that the busbar 1 is conveniently inserted into the accommodating groove 4.
In one embodiment, openings 32 are provided in the baffles on either side of the limit post 7. The opening 32 allows the baffle 3 at the position of the limit post 7 to form a relatively independent part, so that the baffle 3 can generate elastic deformation when the limit post 7 is pushed by the busbar 1, and a space allowing the busbar 1 to pass through is released.
In an embodiment of the present utility model, the busbar bracket 2 is provided with a through hole 5 to facilitate the tab of the battery cell to pass through and then be welded with the busbar 1. The busbar bracket 2 can be arranged into an integrated structure, so that the processing and the manufacturing are convenient, and the production cost is reduced. The busbar 1 may be made of copper or copper nickel plated material.
In the battery with the busbar assembly, the lugs of the battery cells pass through the through holes 5 on the busbar bracket 2 and are then welded with the busbar 1, and the busbar bracket 2 is used for integrating the busbars 1 connected with a plurality of cells, so that a battery pack is formed.
The above-described embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model. The protection scope of the utility model is subject to the claims.
Claims (11)
1. A bus bar assembly, comprising:
the bus bar bracket is provided with an accommodating groove for accommodating the bus bar, the bottom width of the accommodating groove is larger than the opening width, and the first end of the accommodating groove forms an inserting port;
and a bus bar, at least a part of which is matched with the width of the accommodating groove, and at least a part of which is insertable into the accommodating groove from the insertion opening.
2. The bus bar assembly of claim 1, wherein a first locking structure is provided in the receiving slot and a second locking structure is provided on the bus bar that mates with the first locking structure.
3. The bus bar assembly of claim 1, wherein the thickness of the bus bar intermediate body portion is greater than the depth of the receiving slot.
4. A busbar assembly according to claim 1, 2 or 3 wherein the cross section of the receiving slot is one of the following:
a trapezoid;
the lower part is trapezoid, and the upper part is rectangular;
the lower part is rectangular, the upper part is rectangular, and the width of the lower part rectangle is larger than that of the upper part rectangle.
5. The busbar assembly of claim 2, wherein the busbar bracket is further provided with a baffle plate, the baffle plate is arranged at the second end of the accommodating groove, at least one part of the baffle plate extends to the opening of the accommodating groove, and a limit post is arranged on one side of the baffle plate facing the accommodating groove to form the second locking structure; and the busbar is provided with a limiting hole to form the first locking structure.
6. The bus bar assembly of claim 5, wherein the end surface of the bus bar that is first inserted into the receiving groove is provided with a guide structure.
7. The bus bar assembly as set forth in claim 5, wherein the baffles on both sides of the restraining post are provided with openings.
8. The bus bar assembly of claim 1, wherein the bus bar bracket is provided with a through hole.
9. The bus bar assembly of claim 1, wherein the bus bar bracket is a unitary structure.
10. The busbar assembly of claim 1, wherein the busbar is made of copper or copper nickel plated material.
11. A battery comprising a busbar assembly according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223590997.XU CN220306460U (en) | 2022-12-30 | 2022-12-30 | Busbar assembly and battery comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223590997.XU CN220306460U (en) | 2022-12-30 | 2022-12-30 | Busbar assembly and battery comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220306460U true CN220306460U (en) | 2024-01-05 |
Family
ID=89372808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223590997.XU Active CN220306460U (en) | 2022-12-30 | 2022-12-30 | Busbar assembly and battery comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220306460U (en) |
-
2022
- 2022-12-30 CN CN202223590997.XU patent/CN220306460U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |