CN215644888U - Bus bar assembly for battery module, battery module and vehicle - Google Patents
Bus bar assembly for battery module, battery module and vehicle Download PDFInfo
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- CN215644888U CN215644888U CN202122410290.5U CN202122410290U CN215644888U CN 215644888 U CN215644888 U CN 215644888U CN 202122410290 U CN202122410290 U CN 202122410290U CN 215644888 U CN215644888 U CN 215644888U
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- busbar
- bus bar
- battery module
- insulating layer
- battery
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- 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
Abstract
The utility model discloses a bus bar component for a battery module, the battery module and a vehicle, wherein the bus bar component for the battery module comprises: a busbar body including: the battery comprises a body part and a bent part, wherein the body part is arranged at the upper ends of the plurality of battery cells and is connected with the corresponding tabs, and the bent part is arranged at the outer edge of the body part and extends downwards; the insulating layer, insulating layer structure are the plastic protection layer, and the plastic protection layer cladding is in the periphery of kink. According to the utility model, the plastic protective layer is arranged to cover the periphery of the bent part, so that the protective capability of the busbar assembly is improved, the busbar body is prevented from contacting with other parts, and the safety performance is improved; compared with the prior art, the insulating film improves the strength of the busbar body, the shape of the busbar body is easy to keep, clamping and feeding of the busbar welding automatic feeding tool are facilitated, welding efficiency is improved, and cost is reduced.
Description
Technical Field
The utility model relates to the technical field of parts of a battery module, in particular to a bus bar assembly for the battery module, the battery module and a vehicle.
Background
Present battery package is owing to promoted highest speed of a motor vehicle, acceleration performance, and the battery package is more and more high to the quick charge requirement, leads to the battery module to charge soon or discharge current all relatively great, and the busbar of battery module generally needs to take the cooling just can satisfy the temperature rise demand of the operating mode of charging soon or discharging. The outer side of the existing bus bar is designed into a downward bending shape, and the cooling of the bus bar is realized by contacting a cooling piece through the downward bending part of the bus bar. The existing bus bar downward bending part needs insulation treatment, insulation protection is generally realized by coating by adopting an insulation film hot pressing process, and the insulation film is thin and easy to scratch or puncture by hard objects so as to cause failure of the insulation film.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the bus bar assembly for the battery module, which improves the protection capability, improves the production efficiency and reduces the cost.
The utility model further provides a battery module applying the bus bar assembly, so that the protection capability is improved, the production efficiency is improved, and the cost is reduced.
The utility model further provides a vehicle applying the battery module, the protection capability is improved, the production efficiency is improved, and the cost is reduced.
A bus bar assembly for a battery module according to an embodiment of the present invention includes: a busbar body comprising: the battery comprises a body part and a bent part, wherein the body part is arranged at the upper ends of a plurality of battery cells and is connected with corresponding tabs, and the bent part is arranged at the outer edge of the body part and extends downwards; the insulating layer, the insulating layer structure is the plastics inoxidizing coating, the cladding of plastics inoxidizing coating is in the periphery of kink.
According to the bus bar assembly for the battery module, the protective capability of the bus bar assembly is improved by arranging the plastic protective layer to cover the periphery of the bent part, the bus bar body is prevented from contacting with other parts, and the safety performance is improved; compared with the prior art, the insulating film improves the strength of the busbar body, the shape of the busbar body is easy to keep, clamping and feeding of the busbar welding automatic feeding tool are facilitated, welding efficiency is improved, and cost is reduced.
In some embodiments, the insulating layer is configured as a thermally conductive member.
In other embodiments, the plastic protective layer is a rigid plastic protective layer.
Optionally, the thickness of the plastic protective layer is 0-2 mm.
A battery module according to an embodiment of the present invention includes: the battery comprises a battery cell, a plurality of battery cells and a plurality of battery cells, wherein the battery cells are stacked in the thickness direction, and each battery cell is provided with a positive electrode lug and a negative electrode lug; the first bus bar is connected with the positive electrode tabs, and the second bus bar is connected with the negative electrode tabs; wherein at least one of the first busbar and the second busbar is configured as the above-described busbar assembly.
According to the battery module, the protective capability of the bus bar assembly is improved by arranging the plastic protective layer to cover the periphery of the bent part, the bus bar body is prevented from contacting with other parts, and the safety performance is improved; compared with the prior art, the insulating film improves the strength of the busbar body, the shape of the busbar body is easy to keep, clamping and feeding of the busbar welding automatic feeding tool are facilitated, welding efficiency is improved, and cost is reduced.
In some embodiments, the battery module further includes: the first bus bar comprises a first bus bar body and a second bus bar body, wherein the first bus bar body is provided with a first bus bar, the second bus bar body is provided with a second bus bar, the first bus bar body is provided with a first side wall and a second side wall, the first side wall and the second side wall extend in the length direction of the first bus bar body and the second bus bar body, the first side wall is attached to an insulating layer of the first bus bar body, and the second side wall is attached to an insulating layer of the second bus bar body.
Furthermore, a first cooling portion is arranged on the first side wall and attached to the insulating layer of the first bus bar, and a second cooling portion is arranged on the second side wall and attached to the insulating layer of the second bus bar.
Furthermore, a first heat conduction layer is connected between the insulating layer of the first bus bar and the first cooling portion, and a second heat conduction layer is connected between the insulating layer of the second bus bar and the second cooling portion.
Optionally, the battery module further includes: a third cooling portion provided at the bottom of the plurality of battery cells.
The vehicle comprises the battery module.
According to the vehicle provided by the embodiment of the utility model, the protective capability of the bus bar assembly is improved by arranging the plastic protective layer to cover the periphery of the bent part, the bus bar body is prevented from contacting with other parts, and the safety performance is improved; compared with the prior art, the insulating film improves the strength of the busbar body, the shape of the busbar body is easy to keep, clamping and feeding of the busbar welding automatic feeding tool are facilitated, welding efficiency is improved, and cost is reduced.
Additional aspects and advantages of the utility model 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 utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a bus bar assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a battery module according to an embodiment of the utility model.
Reference numerals:
100. a bus bar assembly;
10. a busbar body; 11. a body portion; 12. a bending section; 30. an insulating layer;
200. a battery module;
21. an electric core; 211. a positive electrode tab; 212. a negative electrode tab; 22. a first bus bar; 23. a second bus bar; 24. a first side wall; 241. a first cooling section; 251. a second cooling section; 26. a first thermally conductive layer; 27. a second thermally conductive layer.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present invention.
Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A bus bar assembly 100 for a battery module according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 and 2, a bus bar assembly 100 for a battery module according to an embodiment of the present invention, the bus bar assembly 100 including: a bus bar body 10, an insulating layer 30.
The busbar body 10 includes: the battery module comprises a body part 11 and a bent part 12, wherein the body part 11 is arranged at the upper ends of the plurality of battery cells 21 and connected with corresponding tabs, and the bent part 12 is arranged at the outer edge of the body part 11 and extends downwards.
The insulating layer 30 is configured as a plastic protective layer, and the plastic protective layer is wrapped around the bent portion 12. Compared with the prior art, the plastic protective layer has the advantage of strong protective effect due to the fact that the PET and other insulating films have the advantages that the plastic protective layer is wrapped on the periphery of the bent portion 12 to isolate the bent portion 12 from the external environment, and the plastic protective layer is not easy to be scratched or punctured by hard objects, so that the protective effect is improved. Meanwhile, the structural strength of the busbar after the insulating film hot-pressing process is poor, the busbar is easy to deform, clamping of the busbar welding automatic feeding tool is not facilitated, the welding automatic feeding process is difficult to realize, the welding efficiency is low, and the production cost is high; according to the utility model, the insulating layer 30 is arranged as the plastic protective layer, the plastic protective layer is coated by using a plastic injection molding process, the strength of the busbar body 10 is not reduced, clamping of the busbar welding automatic feeding tool is facilitated, the welding automatic feeding process is easy to realize, the welding efficiency is improved, and the production cost is reduced.
According to the bus bar assembly 100 of the embodiment of the utility model, the plastic protective layer is arranged to cover the periphery of the bent part 12, so that the protective capability of the bus bar assembly 100 is improved, the bus bar body 10 is prevented from contacting with other parts, and the safety performance is improved; compared with the prior art, the insulating film improves the strength of the busbar body 10, the shape of the busbar body 10 is easy to keep, clamping and feeding of the busbar welding automatic feeding tool are facilitated, welding efficiency is improved, and cost is reduced.
In some embodiments, the insulating layer 30 is configured as a heat conducting member, and the temperature of the busbar body 10 can be controlled by the cooling member by configuring the insulating layer 30 as a heat conducting member, so that the cooling effect is improved.
In other embodiments, the plastic protective layer is a hard plastic protective layer, and the protective capability is further improved by using the plastic protective layer as the hard plastic protective layer, so that the plastic protective layer is prevented from losing effectiveness.
Optionally, the plastic protective layer has a thickness of 0-2 mm. For example, the thickness of the plastic protective layer is 1.5 mm; alternatively, the thickness of the plastic protective layer is 1 mm. The thickness of the plastic protective layer is selected according to the requirements of the automatic bus welding feeding tool on the structural strength of the bus, the cooling temperature rise of the bus and the like.
An embodiment of the bus bar assembly 100 of the present invention will be described with reference to fig. 1 and 2.
A busbar assembly 100 comprising: a bus body 10 and an insulating layer 30.
The busbar body 10 includes: a main body 11 and a bending part 12. The body 11 is disposed at the upper end of the plurality of battery cells 21 and connected to the corresponding tab, and the bending portion 12 is disposed at the outer edge of the body 11 and extends downward.
The insulating layer 30 is designed as a thermally conductive hard plastic protective layer, the thickness of the insulating layer 30 being 1 mm.
As shown in fig. 1 and 2, according to an embodiment of the present invention, a battery module 200 includes: cell 21, first busbar 22, second busbar 23.
The battery cell 21 is configured in a plurality of and a plurality of battery cells 21 are stacked in the thickness direction, and each battery cell 21 has a positive electrode tab 211 and a negative electrode tab 212. For example, the thickness direction of the battery cells 21 is the front-rear direction, and twelve battery cells 21 are stacked in the front-rear direction.
The first busbar 22 is connected to a plurality of positive electrode tabs 211, and the second busbar 23 is connected to a plurality of negative electrode tabs 212. At least one of the first busbar 22 and the second busbar 23 is configured as the busbar assembly 100 described above.
For example, the first busbar 22 is configured as the busbar assembly 100, the busbar assembly 100 improves the protective capability of the busbar assembly 100, the insulating layer 30 is prevented from being damaged, the safety performance is improved, meanwhile, the busbar assembly 100 improves the strength of the busbar assembly 100, the shape of the busbar body 10 is easy to keep, clamping and feeding of the busbar welding automatic feeding tool are facilitated, the welding efficiency is improved, and the cost is reduced. Or, the second busbar 23 is constructed as the busbar assembly 100, the busbar assembly 100 improves the protective capability of the busbar assembly 100, the insulating layer 30 is prevented from being damaged, the safety performance is improved, meanwhile, the busbar assembly 100 improves the strength of the busbar assembly 100, the shape of the busbar body 10 is easy to keep, clamping and feeding of the busbar welding automatic feeding tool are facilitated, the welding efficiency is improved, and the cost is reduced. Or, first busbar 22 and second busbar 23 all construct foretell busbar subassembly 100, and busbar subassembly 100 has promoted self protective capacities, avoids insulating layer 30 to take place the damage, has improved the security performance, and busbar subassembly 100 has improved self intensity simultaneously, and the shape of busbar body 10 easily keeps, has made things convenient for the clamp of busbar welding automatic feeding frock to get the material loading, has promoted welding efficiency, reduce cost.
According to the battery module 200 of the embodiment of the utility model, the protective capability of the bus bar assembly 100 is improved by arranging the plastic protective layer to cover the periphery of the bent part 12, so that the bus bar body 10 is prevented from contacting with other parts, and the safety performance is improved; compared with the prior art, the insulating film improves the strength of the busbar body 10, the shape of the busbar body 10 is easy to keep, clamping and feeding of the busbar welding automatic feeding tool are facilitated, welding efficiency is improved, and cost is reduced.
As shown in fig. 1 and 2, in some embodiments, the battery module 200 further includes: the first side wall 24 and the second side wall (not shown in the figure) extending in the length direction of the first bus bar 22 and the second bus bar 23, the first side wall 24 is attached to the insulating layer 30 of the first bus bar 22, the second side wall is attached to the insulating layer 30 of the second bus bar 23, and the space occupied by the bending part 12 is reduced by arranging the first side wall 24 to be attached to the insulating layer 30 of the first bus bar 22 and the second side wall to be attached to the insulating layer 30 of the second bus bar 23, so that the whole structure is compact.
As shown in fig. 1 and 2, the first side wall 24 is provided with a first cooling portion 241, the first cooling portion 241 is attached to the insulating layer 30 of the first bus bar 22, the second side wall is provided with a second cooling portion 251, the second cooling portion 251 is attached to the insulating layer 30 of the second bus bar 23, and the first cooling portion 241 provided on the first side wall 24 is attached to the insulating layer 30 of the first bus bar 22 to form a reliable heat conduction path to cool down the first bus bar 22 and the battery module 200 at the same time, so as to increase the cooling range; meanwhile, the second cooling portion 251 arranged on the second side wall is attached to the insulating layer 30 of the second bus bar 23 to form a reliable heat conduction path to cool the second bus bar 23 and the battery module 200, so that the cooling range is further increased.
As shown in fig. 1 and 2, a first heat conduction layer 26 is further connected between the insulating layer 30 of the first bus bar 22 and the first cooling portion 241, and a second heat conduction layer 27 is further connected between the insulating layer 30 of the second bus bar 23 and the second cooling portion 251, so that the reliability of the heat conduction path is further improved by providing the first heat conduction layer 26 and the second heat conduction layer 27.
For example, the thermal conductive silicone pads of the first and second thermal conductive layers 26 and 27 are attached to the first and second sidewalls 24 and 27.
Optionally, the battery module 200 further includes: and a third cooling portion (not shown) disposed at the bottom of the plurality of battery cells 21, for further increasing the cooling range at the bottom of the battery cells 21, so as to cool the whole battery module 200.
Alternatively, the first cooling part 241 is a cooling pipe or a cooling plate; the second cooling part 251 is a cooling pipe or a cooling plate; the third cooling part is a cooling pipe or a cooling plate.
A vehicle (not shown) according to an embodiment of the present invention includes the battery module 200 described above.
According to the vehicle provided by the embodiment of the utility model, the protective capability of the busbar assembly 100 is improved by arranging the plastic protective layer to cover the periphery of the bent part 12, the busbar body 10 is prevented from contacting with other parts, and the safety performance is improved; compared with the prior art, the insulating film improves the strength of the busbar body 10, the shape of the busbar body 10 is easy to keep, clamping and feeding of the busbar welding automatic feeding tool are facilitated, welding efficiency is improved, and cost is reduced.
Other constructions and operations of the bus bar assembly 100 according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "embodiment," "example," etc., mean 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 utility model. 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.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A bus bar assembly (100) for a battery module, comprising:
a busbar body (10), the busbar body (10) comprising: the battery cell comprises a body part (11) and a bent part (12), wherein the body part (11) is arranged at the upper ends of a plurality of battery cells (21) and is connected with corresponding tabs, and the bent part (12) is arranged at the outer edge of the body part (11) and extends downwards;
the insulating layer (30), insulating layer (30) structure is the plastics inoxidizing coating, the plastics inoxidizing coating cladding is in the periphery of kink (12).
2. The bus bar assembly (100) for battery modules according to claim 1, wherein the insulating layer (30) is configured as a heat conductive member.
3. The bus bar assembly (100) for battery modules according to claim 1, wherein the plastic sheathing layer is a hard plastic sheathing layer.
4. The bus bar assembly (100) for battery modules according to any one of claims 1 to 3, wherein the thickness of the plastic sheathing layer is 0 to 2 mm.
5. A battery module (200), comprising:
a plurality of battery cells (21), wherein the battery cells (21) are configured to be stacked in a thickness direction, and each battery cell (21) has a positive electrode tab (211) and a negative electrode tab (212);
a first busbar (22) and a second busbar (23), the first busbar (22) being connected to a plurality of the positive electrode tabs (211), the second busbar (23) being connected to a plurality of the negative electrode tabs (212); wherein
At least one of the first busbar (22) and the second busbar (23) is configured as a busbar assembly (100) according to one of claims 1 to 4.
6. The battery module (200) according to claim 5, further comprising: a first side wall (24) and a second side wall extending in a length direction of the first busbar (22) and the second busbar (23), the first side wall (24) being attached to an insulating layer (30) of the first busbar (22), the second side wall being attached to an insulating layer (30) of the second busbar (23).
7. The battery module (200) according to claim 6, wherein the first side wall (24) is provided with a first cooling portion (241), the first cooling portion (241) is attached to the insulating layer (30) of the first bus bar (22), and the second side wall is provided with a second cooling portion (251), the second cooling portion (251) is attached to the insulating layer (30) of the second bus bar (23).
8. The battery module (200) according to claim 7, wherein a first heat conducting layer (26) is further connected between the insulating layer (30) of the first busbar (22) and the first cooling portion (241), and a second heat conducting layer (27) is further connected between the insulating layer (30) of the second busbar (23) and the second cooling portion (251).
9. The battery module (200) according to claim 5, further comprising: a third cooling portion provided at the bottom of the plurality of battery cells (21).
10. A vehicle characterized by comprising the battery module (200) according to any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122410290.5U CN215644888U (en) | 2021-09-30 | 2021-09-30 | Bus bar assembly for battery module, battery module and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122410290.5U CN215644888U (en) | 2021-09-30 | 2021-09-30 | Bus bar assembly for battery module, battery module and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215644888U true CN215644888U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122410290.5U Active CN215644888U (en) | 2021-09-30 | 2021-09-30 | Bus bar assembly for battery module, battery module and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215644888U (en) |
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2021
- 2021-09-30 CN CN202122410290.5U patent/CN215644888U/en active Active
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