CN207690904U - A kind of improved soft package battery module - Google Patents
A kind of improved soft package battery module Download PDFInfo
- Publication number
- CN207690904U CN207690904U CN201721786773.2U CN201721786773U CN207690904U CN 207690904 U CN207690904 U CN 207690904U CN 201721786773 U CN201721786773 U CN 201721786773U CN 207690904 U CN207690904 U CN 207690904U
- Authority
- CN
- China
- Prior art keywords
- bus
- bar support
- bar
- battery core
- soft package
- 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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Classifications
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model is related to new-energy automobiles to drive battery technology field, specifically a kind of improved soft package battery module, including battery core, heat conduction box, bus-bar support component, battery core is arranged in heat conduction box, bus-bar support component includes T fonts bus-bar and bus-bar support, T font bus-bars are moulded in bus-bar support, the face that T fonts bus-bar is contacted with cell polar ear is equipped with lug via, cell polar ear passes through bending after lug via, is connected using laser welding between the cell polar ear after bending and T font bus-bars.The utility model is compared with the existing technology, bus-bar support and bus-bar injection molding are integrated, by the assembly precision for improving bus-bar support component and fixed reliability, module assembling quality is improved, module tab welding quality and module reliability of electrical connection are further improved；Module assembly material type is reduced, assembly time is reduced, reduces modular manufacture cost.
Description
Technical field
The utility model is related to new-energy automobiles to drive battery technology field, specifically a kind of improved soft-package battery
Module.
Background technology
During battery core is integrated into module, the mechanical connection between battery core and electrical connection are mainly completed.In traditional Soft Roll
In battery core module, the electrical connection between battery core is realized by the bus-bar being welded on lug.Wherein, lug by friction welding (FW), swash
The techniques such as flush weld are welded on the busbar, and the electrical connection in module between battery core is completed by bus-bar.And bus-bar itself passes through machine
Tool mode is fixed in bus-bar support, is avoided being welded to connect between extra-stress damage lug and bus-bar, is ensured module
Current output line road during use is normal.Therefore in module there are two or the support of more than two bus-bars and be assemblied in confluence
Bus-bar in row's support has more bus-bar support and is assemblied in the case where module connection in series-parallel is more in module
Bus-bar in bus-bar support has excessive bus-bar support and confluence that is, in module production process in assembly process
Row needs to assemble, and can cause following problem：1 traditional bus-bar is formed by copper sheet and aluminium flake ultrasonic bonding, ultrasonic bonding
Face vertical direction, bus-bar assembly direction are identical, parallel with battery core direction, and supersonic welding junction vertical direction is bus-bar
The direction of ultrasonic bonding most fragile.In bus-bar assembling process, the stress perpendicular to supersonic welding junction is will produce, easily
The ultrasonic bonding connection between copper sheet and aluminium flake is destroyed, causes bus-bar material to damage and waste, the case where finding not in time
Under, it easily causes module electrical connection bad, in the big multiplying power discharging of module, the fever of module will be caused to catch fire.
2 since there are fit-up gaps between bus-bar and bus-bar support, it is difficult to ensure that the stabilization of bus-bar assembling structure
Property, influence the service life after module welding quality and welding.
3 increase assembly cost, and long assembly process can cause assembling quality to be more difficult to guarantee, bus-bar may be made unsceptered.
Therefore, it is necessary to design between a kind of cell polar ear that electrical connection quality is reliable and stable, production cost is low and suitable for a variety of
The different series-parallel soft package battery modules of battery core.
Invention content
The purpose of the utility model is to overcome the deficiencies of the prior art and provide electrical connection quality between a kind of cell polar ear is steady
Fixed reliable, production cost is low and suitable for the different series-parallel soft package battery modules of a variety of battery cores.
In order to achieve the above object, the utility model is a kind of improved soft package battery module, including battery core, heat conduction box,
Bus-bar support component, it is characterised in that：Battery core be arranged in heat conduction box, bus-bar support component include T fonts bus-bar and
Bus-bar supports, and T font bus-bars are moulded in bus-bar support, and the face that T fonts bus-bar is contacted with cell polar ear is equipped with
Lug via, cell polar ear pass through bending after lug via, and laser is used between the cell polar ear after bending and T font bus-bars
It is welded to connect.
The T font bus-bars are welded by copper sheet and aluminium flake.
After two adjacent lug bendings, there are overlapping region, in overlay region between the lug and T font bus-bars
Domain is connected using laser welding.
The bus-bar support is equipped with cylindrical boss.
The bus-bar support component has several, and bus-bar support component is connected with battery core load bearing element, confluence
It arranges support component and is equipped with hole, distance matches between hole and cell polar ear thickness and two neighboring cell polar ear.
The bus-bar support component both ends are respectively equipped with a fixed cylinder, and fixed cylinder is equipped with sliding rail, sliding
With several buckle protrusions, sliding rail matches to merge with battery core load bearing element to be caught in the card slot of battery core load bearing element rail.
The battery core load bearing element is bonded with battery core.
The utility model compared with the existing technology, bus-bar support and bus-bar injection molding is integrated, improvement is passed through
The assembly precision of bus-bar support component and fixed reliability, improve module assembling quality, further improve module pole
Ear welding quality and module reliability of electrical connection；Reduce module assembly material type, reduce assembly time, reduce modular manufacture at
This；The hole that distance matches between the lug thickness and adjacent lug of battery core is formed, two and or more and battery core are suitable for
Structure；The sliding rail of the multiple buckle protrusions of bus-bar support component mating band, realizes concave support portion and two dished support portions
Between pore width it is adjustable, the assembly for being suitable for different size soft pack cells is integrated, and scalability is good.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the sectional view of the utility model.
Specific implementation mode
The utility model is described further in conjunction with attached drawing.
Referring to Fig. 1, Fig. 2, the utility model is a kind of improved soft package battery module, including battery core, heat conduction box, bus-bar
Support component, battery core 1 are arranged in heat conduction box, and bus-bar support component 8 limits position between cell polar ear 2 and bus-bar, converge
Stream row's support component 8 includes that T fonts bus-bar 3 and bus-bar support 4, T fonts bus-bar 3 are moulded in bus-bar support 4, T
The face that font bus-bar 3 is contacted with cell polar ear 2 is equipped with lug via 5, and cell polar ear 2 passes through bending after lug via 5, folding
It is connected using laser welding between cell polar ear 2 after curved and T fonts bus-bar 3.
T fonts bus-bar 3 is welded by copper sheet and aluminium flake.T fonts bus-bar 3 is wrapped in bus-bar by molded portion
In support 4, the bonding strength between copper sheet and aluminium flake is further enhanced.
In the utility model, after adjacent two 2 bendings of cell polar ear, there are overlapping region, cell polar ear 2 and T fonts
It is connected using laser welding in overlapping region between bus-bar 3.
Bus-bar support 4 is equipped with cylindrical boss 6, is used for fixed module insulation cover plate.
Bus-bar support 4 on pore width and gapping interval it is adjustable, be suitable for different-thickness battery core and it is different string simultaneously
The battery module of connection.
Bus-bar support component 8 has several, and bus-bar support component 8 is connect with battery core load bearing element 7, bus-bar support
Component 8 is equipped with hole, and distance matches between hole and 2 thickness of cell polar ear and two neighboring cell polar ear 2.
8 both ends of bus-bar support component are respectively equipped with a fixed cylinder 9, and fixed cylinder 9 is equipped with sliding rail, sliding rail band
There are several buckle protrusions, sliding rail matches to merge with battery core load bearing element 7 to be caught in the card slot of battery core load bearing element 7.
Battery core load bearing element 7 is bonded with battery core 1, and carries battery core 1.Battery core load bearing element 7 includes to have good heat conductive work(
The metal material of energy, can conduct heat in battery core 1 to module thermal management structure.
For the utility model in assembly, battery core 1 is packed into the CMA, multiple CMA of composition plurality of specifications in battery core load bearing element 7
It stacks according to certain sequence, is fixed together by module clamping plate；Assemble bus-bar support component 8；2 bending of cell polar ear and with
T fonts bus-bar 3 is bonded；Laser welding connects cell polar ear 2 and T fonts bus-bar 3.
The utility model integrates bus-bar support 4 and T fonts bus-bar 3, and wherein bus-bar support 4 is plastics
Part, T fonts bus-bar 3 in bus-bar support 4, greatly improve the structural strength of bus-bar support component as insert injection moulding.T
The injection molding of font bus-bar 3 is integrated in bus-bar support 4, can improve the assembly precision of module, and then improves the weldering of module lug
Quality and stability are connect, product cost is reduced.
Claims (7)
1. a kind of improved soft package battery module, including battery core, heat conduction box, bus-bar support component, it is characterised in that：Battery core
（1）It is arranged in heat conduction box, bus-bar support component（8）Including T font bus-bars（3）It is supported with bus-bar（4）, the remittance of T fonts
Stream row（3）It is moulded in bus-bar support（4）On, T font bus-bars（3）With cell polar ear（2）The face of contact is equipped with lug mistake
Hole（5）, cell polar ear（2）Across lug via（5）Bending afterwards, the cell polar ear after bending（2）With T font bus-bars（3）It
Between using laser welding connect.
2. a kind of improved soft package battery module according to claim 1, it is characterised in that：The T font bus-bars
（3）It is welded by copper sheet and aluminium flake.
3. a kind of improved soft package battery module according to claim 1, it is characterised in that：Two adjacent lugs（2）
After bending, there are overlapping region, the lug（2）With T font bus-bars（3）Between overlapping region using Laser Welding in succession
It connects.
4. a kind of improved soft package battery module according to claim 1, it is characterised in that：The bus-bar support
（4）It is equipped with cylindrical boss（6）.
5. a kind of improved soft package battery module according to claim 1, it is characterised in that：The bus-bar support group
Part（8）There are several, bus-bar support component（8）With battery core load bearing element（7）It is connected, bus-bar support component（8）On set
There are hole, hole and cell polar ear（2）Thickness and two neighboring cell polar ear（2）Between distance match.
6. a kind of improved soft package battery module according to claim 5, it is characterised in that：The bus-bar support group
Part（8）Both ends are respectively equipped with a fixed cylinder（9）, fixed cylinder（9）It is equipped with sliding rail, sliding rail is convex with several buckles
It rises, sliding rail and battery core load bearing element（7）It is caught in battery core load bearing element with merging（7）Card slot in.
7. a kind of improved soft package battery module according to claim 5, it is characterised in that：The battery core load bearing element
（7）With battery core（1）Fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721786773.2U CN207690904U (en) | 2017-12-20 | 2017-12-20 | A kind of improved soft package battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721786773.2U CN207690904U (en) | 2017-12-20 | 2017-12-20 | A kind of improved soft package battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207690904U true CN207690904U (en) | 2018-08-03 |
Family
ID=62994511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721786773.2U Active CN207690904U (en) | 2017-12-20 | 2017-12-20 | A kind of improved soft package battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207690904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839148A (en) * | 2020-06-05 | 2021-12-24 | 欣旺达电动汽车电池有限公司 | Battery module and bus welding method thereof |
-
2017
- 2017-12-20 CN CN201721786773.2U patent/CN207690904U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839148A (en) * | 2020-06-05 | 2021-12-24 | 欣旺达电动汽车电池有限公司 | Battery module and bus welding method thereof |
| CN113839148B (en) * | 2020-06-05 | 2023-09-12 | 欣旺达电动汽车电池有限公司 | Battery module and busbar welding method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |