CN206022463U - A kind of battery module of electric vehicle unit and battery module - Google Patents
A kind of battery module of electric vehicle unit and battery module Download PDFInfo
- Publication number
- CN206022463U CN206022463U CN201620901201.3U CN201620901201U CN206022463U CN 206022463 U CN206022463 U CN 206022463U CN 201620901201 U CN201620901201 U CN 201620901201U CN 206022463 U CN206022463 U CN 206022463U
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- Prior art keywords
- battery module
- electric vehicle
- battery core
- battery
- negative electrode
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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 kind of battery module of electric vehicle unit and battery module.Battery module unit is constituted by the first battery core, the second battery core, every cotton and plastic stent, first battery core, fit together every cotton and the second battery core successively,, to opposite direction bending, the second anode ear on the first negative electrode lug and the second battery core in the first battery core is to different directions bending for the second negative electrode lug on the first anode ear and the second battery core in first battery core；Battery module of electric vehicle is made up of some battery module of electric vehicle units, after the arrangement assembling of battery module of electric vehicle unit, the first anode ear of a battery module of electric vehicle unit is linked together by laser welding with the second negative electrode lug of adjacent battery module of electric vehicle unit.This utility model eliminates the bus-bar of block coupled in series and adopts laser welding technology, reduces the production cost of module and improves the energy density of module, it is ensured that the reliability of the positive and negative lug connection of battery core.
Description
Technical field
This utility model is related to cell manufacturing techniques field, more particularly, to a kind of battery module of electric vehicle unit and electricity
Pond module.
Background technology
At present in battery module of electric vehicle production industry, the positive and negative ear pole material of the battery battery core for being adopted is frequently not
Same, anode ear is usually aluminium pole ears, and negative electrode lug is usually copper polar ear, and battery battery core to be realized makes battery mould by series connection
Block, it is necessary to be attached by a kind of good material of electric conductivity.Generally solve battery core using two methods in industry at present to connect
Problem is connect, the first is attached by bolt and bus-bar, copper is generally selected as the material of bus-bar, although copper product
Excellent conductivity, but cause the connection internal resistance of this connected mode larger due to the presence of bolt, and the cost of copper product
Higher, adds somewhat to the cost of module；Its two be by way of laser welding is connected with bus-bar, but adopt
This method connection must solve the connectivity problem between copper aluminium material material, solve this using copper aluminum composite material in prior art
Problem, but this kind of method has that production cost is too high, the also higher problem of parts cost；Simultaneously in above two method,
As bus-bar must be used in each battery core, metal material density is larger in addition, and in module weight, bus-bar accounting is big,
The energy density of whole battery module is relatively low.
Chinese patent notification number CN203218366U, is September in 2013 25, which discloses one kind patent announcement day
Electric car power supply module connection structure, although the connection skill combined with bus-bar using laser welding in the technical scheme
Art, but as which is still using bus-bar as connection member, the quality for still considerably increasing battery module causes battery
The overall energy density of module is low, reduces the work efficiency of battery module.
Utility model content
For solving the above problems, this utility model provides the electric automobile electricity for not adopting bus-bar in a kind of attachment structure
Pond modular unit；
This utility model additionally provides a kind of electric automobile electricity assembled by above-mentioned battery module of electric vehicle unit
Pond module.
For achieving the above object, the technical solution adopted in the utility model is as follows：
A kind of battery module of electric vehicle unit, its are constituted by the first battery core, the second battery core, every cotton and plastic stent, the
One battery core, fit together every cotton and the second battery core successively；In first battery core on the first anode ear and the second battery core second
, to opposite direction bending, the second anode ear on the first negative electrode lug and the second battery core in the first battery core is to different directions for negative electrode lug
Bending；The first anode ear and the second negative electrode lug after bending is fixed on plastic stent through the through hole at the top of plastic stent and will
They use laser welding, and the first negative electrode lug and the second anode ear after bending is through the through hole at the top of plastic stent and fixed.
In the technical program, the method for attachment of the cell polar ear of bus-bar in prior art is abandoned, using directly using laser
Solder technology is by corresponding anode ear together with negative pole lug welding；Before welding, positive and negative lug carries out 90 degree of bending, and first just
Lug and the second negative electrode lug bend 90 degree to same direction, and two lugs for making fit together, then are carried out laser welding
Link together, the first negative electrode lug and the second anode ear will be attached with adjacent battery modules unit, therefore same
The first negative electrode lug and the second anode ear in battery module unit bends 90 degree to opposite direction so as to which the two is more suitable for and adjacent electricity
The corresponding cell polar ear of pond modular unit carries out laser welding；Plastic stent be fix two pieces between battery core and battery core every
Cotton, while be also used for facilitating the fixation and connection between battery module unit；It is provided with for fixed electrode at the top of plastic stent
Stopper slot, the lug after bending are fixed by snapping in or carry out subsequent operation.
Preferably, the first anode ear is above the second negative electrode lug.
Preferably, being respectively provided with a fixing hole on four angles of plastic stent.
Fixing hole on plastic stent corner in order to the connection and fixation when battery module unit is assembled into battery module,
Keep neatly consolidating between each unit.
Preferably, the first negative electrode lug after bending is fixed on the top of plastic stent through after the through hole at the top of plastic stent
Portion.
A kind of battery module of electric vehicle, its are made up of some battery module of electric vehicle units, batteries of electric automobile mould
After module unit arrangement assembling, the first anode ear of a battery module of electric vehicle unit and adjacent battery module of electric vehicle list
Second negative electrode lug of unit is linked together by laser welding.
Therefore, this utility model has the advantages that：
（1）This utility model eliminates the bus-bar of block coupled in series in structure, reduces the production cost of module and carries
The high energy density of module.
（2）Technically directly being welded using laser welding needs the both positive and negative polarity lug of series connection battery core, it is ensured that battery core is just
The reliability of negative electrode lug connection.
Description of the drawings
Fig. 1 is the schematic diagram after cell polar ear bending；
Fig. 2 is battery module unit schematic diagram；
Fig. 3 is battery module schematic diagram
In figure：1st, the first battery core, the 2, second battery core, 3, every cotton, 4, plastic stent, 5, fixing hole, the 11, first anode ear,
12nd, the first negative electrode lug, the 21, second anode ear, the 22, second negative electrode lug.
Specific embodiment
The technical solution of the utility model is further described with reference to specific embodiment.
Embodiment
As illustrated in fig. 1 and 2, a kind of battery module of electric vehicle unit, which is by the first battery core 1, the second battery core 2, every 3 and of cotton
Plastic stent 4 is constituted, and the first battery core, is fit together every cotton and the second battery core successively, and plastic stent is respectively provided with one on four angles
Individual fixing hole, in order to fixation and connection between battery module unit；The first anode ear 11 and the second battery core in first battery core
On the second negative electrode lug 22 to opposite direction bending, and the first anode ear is above the second negative electrode lug, in the first battery core
The second anode ear 21 on first negative electrode lug 12 and the second battery core is to different directions bending；The first anode ear and second after bending
Negative electrode lug is fixed on plastic stent and they is used laser welding through the through hole at the top of plastic stent, and first after bending is negative
Lug and the second anode ear are through the through hole at the top of plastic stent and fixed, and the first negative electrode lug after bending passes through plastic stent top
Be fixed on the top of plastic stent after the through hole in portion, the second anode ear after bending is directed away from plastic stent side, prevent with
First anode ear contacts, and is conducive to being connected with the first negative electrode lug of adjacent cells.
When making battery module unit, first battery core is assembled, afterwards the lug of battery core is carried out by above-mentioned requirements curved
Folding, is then installed into battery core in plastic stent and carries out corresponding laser welding.
As shown in figure 3, a kind of battery module of electric vehicle, which is made up of some battery module of electric vehicle units, electronic
After the arrangement assembling of automobile battery module unit, the first anode ear of a battery module of electric vehicle unit and adjacent electric automobile
Second negative electrode lug of battery module unit is linked together by laser welding.
Claims (5)
1. a kind of battery module of electric vehicle unit, it is characterised in that：Which is by the first battery core（1）, the second battery core（2）, every cotton（3）
And plastic stent（4）Composition, the first battery core, is fit together successively every cotton and the second battery core；The first positive pole in first battery core
Ear（11）With the second negative electrode lug in the second battery core（22）To opposite direction bending, the first negative electrode lug in the first battery core（12）With
The second anode ear in second battery core（21）To different directions bending；The first anode ear and the second negative electrode lug after bending is through modeling
The through hole of material cradle top is fixed on plastic stent and they is used laser welding, and the first negative electrode lug and second after bending is just
Lug is through the through hole at the top of plastic stent and fixed.
2. a kind of battery module of electric vehicle unit according to claim 1, it is characterised in that：The first described anode ear
Above the second negative electrode lug.
3. a kind of battery module of electric vehicle unit according to claim 1, it is characterised in that：Described plastic stent four
A fixing hole is respectively provided with individual angle.
4. a kind of battery module of electric vehicle unit according to claim 1, it is characterised in that：After the bending first
Negative electrode lug is fixed on the top of plastic stent through after the through hole at the top of plastic stent.
5. a kind of battery module of electric vehicle, it is characterised in that：Which is by some electric automobile electricity as described in Claims 1 to 4
Pond modular unit composition, after the arrangement assembling of battery module of electric vehicle unit, the first of a battery module of electric vehicle unit
Anode ear is linked together by laser welding with the second negative electrode lug of adjacent battery module of electric vehicle unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620901201.3U CN206022463U (en) | 2016-08-17 | 2016-08-17 | A kind of battery module of electric vehicle unit and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620901201.3U CN206022463U (en) | 2016-08-17 | 2016-08-17 | A kind of battery module of electric vehicle unit and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206022463U true CN206022463U (en) | 2017-03-15 |
Family
ID=58249957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620901201.3U Active CN206022463U (en) | 2016-08-17 | 2016-08-17 | A kind of battery module of electric vehicle unit and battery module |
Country Status (1)
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| CN (1) | CN206022463U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732315A (en) * | 2017-11-28 | 2018-02-23 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of module block structure based on soft bag lithium ionic cell |
| CN107732090A (en) * | 2017-11-28 | 2018-02-23 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of battery module structure to radiate safely |
| CN107742692A (en) * | 2017-11-10 | 2018-02-27 | 上海卡耐新能源有限公司 | A kind of power battery module and electric car |
| CN107994196A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of soft bag lithium ionic cell module circuitry connection structure |
| CN107994168A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of soft bag lithium ionic cell module integral assembling structure |
| CN107994162A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of battery modules pressurize mounting structure |
| CN107994163A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of Soft Roll lithium-ion electric core support supports positioning framework |
| CN107994169A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of soft bag lithium ionic cell modular structure |
| CN107994167A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of battery modules are easy to the mounting structure of assembling |
| CN110429234A (en) * | 2019-07-05 | 2019-11-08 | 恒大新能源科技集团有限公司 | A kind of no busbar connector battery module structure and assemble method |
| WO2020155989A1 (en) * | 2019-01-28 | 2020-08-06 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN112002868A (en) * | 2020-09-08 | 2020-11-27 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
| WO2020253610A1 (en) * | 2019-06-17 | 2020-12-24 | Dongguan Amperex Technology Limited | Battery assembly and electrochemical device |
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- 2016-08-17 CN CN201620901201.3U patent/CN206022463U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742692A (en) * | 2017-11-10 | 2018-02-27 | 上海卡耐新能源有限公司 | A kind of power battery module and electric car |
| CN107994163A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of Soft Roll lithium-ion electric core support supports positioning framework |
| CN107994167A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of battery modules are easy to the mounting structure of assembling |
| CN107994196A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of soft bag lithium ionic cell module circuitry connection structure |
| CN107994168A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of soft bag lithium ionic cell module integral assembling structure |
| CN107994162A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of battery modules pressurize mounting structure |
| CN107732315A (en) * | 2017-11-28 | 2018-02-23 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of module block structure based on soft bag lithium ionic cell |
| CN107994169A (en) * | 2017-11-28 | 2018-05-04 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of soft bag lithium ionic cell modular structure |
| CN107732090A (en) * | 2017-11-28 | 2018-02-23 | 安徽欧鹏巴赫新能源科技有限公司 | A kind of battery module structure to radiate safely |
| CN107732315B (en) * | 2017-11-28 | 2020-09-11 | 安徽欧鹏巴赫新能源科技有限公司 | Module group structure based on soft package lithium ion battery |
| WO2020155989A1 (en) * | 2019-01-28 | 2020-08-06 | 宁德时代新能源科技股份有限公司 | Battery module |
| US11088424B2 (en) | 2019-01-28 | 2021-08-10 | Contemporary Amperex Technology Co., Limited | Battery module |
| WO2020253610A1 (en) * | 2019-06-17 | 2020-12-24 | Dongguan Amperex Technology Limited | Battery assembly and electrochemical device |
| CN110429234A (en) * | 2019-07-05 | 2019-11-08 | 恒大新能源科技集团有限公司 | A kind of no busbar connector battery module structure and assemble method |
| CN112002868A (en) * | 2020-09-08 | 2020-11-27 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211117 Address after: No.855, Jianshe 2nd Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: Wanxiang A123 Co.,Ltd. Address before: No.855, Jianshe 2nd Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: Wanxiang A123 Co.,Ltd. Patentee before: Wanxiang Group Co., Ltd |