CN109830640A - A kind of composite structure and manufacturing method of power battery busbar connector - Google Patents
A kind of composite structure and manufacturing method of power battery busbar connector Download PDFInfo
- Publication number
- CN109830640A CN109830640A CN201910086492.3A CN201910086492A CN109830640A CN 109830640 A CN109830640 A CN 109830640A CN 201910086492 A CN201910086492 A CN 201910086492A CN 109830640 A CN109830640 A CN 109830640A
- Authority
- CN
- China
- Prior art keywords
- busbar connector
- power battery
- material film
- circuit board
- flexible circuit
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000003466 welding Methods 0.000 claims abstract description 21
- 239000002861 polymer material Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000003292 glue Substances 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 229920000297 Rayon Polymers 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 241000500881 Lepisma Species 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 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
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses a kind of composite structures of power battery busbar connector, including laminar busbar connector, flexible circuit board is welded on busbar connector, harness of the flexible circuit board as busbar connector, the two sides of busbar connector cover polymer material film, it is pressed on the high molecular material mould of busbar connector two sides, temperature-monitoring element is welded on the tab interconnecting piece of the busbar connector, replace traditional harness by using flexible circuit board, it avoids welding the tab interconnecting piece on each busbar connector using traditional harness, avoid traditional harness lineation and manual welding, to realize automatic assembling, and busbar connector is pressed by viscose glue using polymer material film, it is embedded in the busbar connector for having welded flexible circuit board in polymer material film, it eliminates for unchangable traditions harness, so that the structure becomes the modular structure of standard, it can carry out curved Folding, convenient for its installation in power battery module, due to eliminating bracket, so that the assembling space occupied required for it greatly reduces.
Description
Technical field
The present invention relates to a kind of structure of power battery and its manufacturing methods.
Background technique
Power battery operating current is big, and quantity of heat production is big, while battery pack is the environment of a relative closure again, this will lead to
The rising of battery temperature, and temperature rises easy so that thermal runaway, service life deep fades, charge and discharge limitation etc. occurs in power battery
The problem of problem, and the promotion of the energy density of power battery and the reduction of safety margin, core is it is to be understood that power battery list
The temperature of body itself.
In order to detect that the temperature of power battery, temperature detecting element are typically located on the tab of battery, and common
Power battery uses harness, and electrode and temperature-monitoring element separately design type selecting and installation, so that design selection is nonstandard, installation
Personnel requirement is higher, and consuming time is long, and error-prone and occupied space is big, will affect common electrical measurement institute than heavier defect
The space occupied and electrical measurement obtain can effect ratio.
In other words, the gathering line of power battery is very more, and the space of battery pack will become smaller, its assembling highly dependent upon
Manually, it has no idea to realize large-scale mechanization production.
Summary of the invention
The present invention provide it is a kind of can be more convenient by the installation of power battery, while making the structure space and again of power battery
Measure the composite structure and manufacturing method of the power battery busbar connector being greatly decreased.
A kind of composite structure of power battery busbar connector, including laminar busbar connector are welded with soft route on busbar connector
The two sides of plate, harness of the flexible circuit board as busbar connector, busbar connector cover polymer material film, are pressed on busbar connector two
The high molecular material mould of side is welded with temperature-monitoring element on the tab interconnecting piece of the busbar connector.
The manufacturing method of the composite structure of the power battery busbar connector, comprising the following steps:
S1. the copper material pad in flexible circuit board and the welding position at the tab interconnecting piece on busbar connector are welded；
S2. it is pressed by viscose glue in the two sides of the busbar connector using polymer material film；
S3. tab interconnecting piece welding temperature monitoring element on the busbar.
The present invention replaces traditional harness by using flexible circuit board, avoids welding on each busbar connector using traditional harness
Tab interconnecting piece, avoid traditional harness lineation and manual welding, to realize automatic assembling, and assemble accuracy
It is very high, and busbar connector is pressed by viscose glue using polymer material film, make the busbar connector for having welded flexible circuit board
It is embedded in polymer material film, eliminates the bracket for unchangable traditions harness and busbar connector, so that the structure becomes mark
Quasi- modular structure can be bent, since busbar connector uses thin slice material convenient for its peace in power battery module
Dress, due to eliminating bracket, so that the assembling space occupied required for it greatly reduces.
Detailed description of the invention
Fig. 1 is the overall schematic of the composite structure of busbar connector.
Fig. 2 is the explosive view of the composite structure of busbar connector.
Specific embodiment
As shown in Fig. 2, the composite structure of the power battery busbar connector, including laminar busbar connector 2, welded on busbar connector 2
There is flexible circuit board 3, the two sides of harness of the flexible circuit board 3 as busbar connector 2, busbar connector 2 cover polymer material film
1, it is pressed on the high molecular material mould 1 of 2 two sides of busbar connector, polymer material film 1 is pressed with busbar connector 2 by viscose glue, institute
It states and is welded with temperature-monitoring element 23 on the tab interconnecting piece 21 of busbar connector.
Replace traditional harness by using flexible circuit board 3, avoids welding the pole on each busbar connector 2 using traditional harness
Ear interconnecting piece 21 avoids traditional harness lineation and manual welding, to realize automatic assembling, and it is non-to assemble accuracy
Chang Gao, and busbar connector 2 is pressed by viscose glue using polymer material film 1, make the busbar connector for having welded flexible circuit board 3
2 are embedded in polymer material film 1, eliminate the bracket for unchangable traditions harness and busbar connector 2, so that the structure becomes
The modular structure of standard can be bent, convenient for it in power battery module since busbar connector 2 uses thin slice material
Installation, due to eliminating bracket, so that the assembling space occupied required for it greatly reduces.
In order to make the composite structure of the power battery busbar connector have preferably pressure resistance and shockproof properties, converge in flake
It arranges surface and multiple buffering spring sheets 22 is set, corresponding aperture is arranged for keeping buffering spring sheet 22 logical in corresponding polymer material film
It crosses.
In order to make the composite structure of the power battery busbar connector have better fire-retardant and insulation performance, polymer material film
It is compound selected from polyimides/acrylic composite material film, polyimide/epoxy glue composite material film, polytetrafluoroethylene (PTFE)/acrylic
At least one of material membrane, polytetrafluoroethylene (PTFE)/epoxy glue composite material film.
The manufacturing method of the package assembly of the power battery busbar connector specifically carries out through the following steps.
Flexible circuit board is made first, is routed in the soft electronic wiring board by power battery module,
To replace traditional harness cable, subsequent process mistake proofing installation and integral module metaplasia is facilitated to produce offer condition.
Then laser technology or Ultrasonic welding processes are used, make pad (mainly thick copper material) in flexible circuit board and
Busbar connector, which welds together, to be attached, and is replaced the slicker solder of current harness cable craft to weld laser welding and need to control and is swashed
Light energy, process detect molten wide, fusion penetration, the peeling force of welding and voltage drop to ensure that the validity of process is relatively current
Slicker solder welding welding manner more automates, more reliable and can ensure that better shock resistance.
Further, it is pressed using composite structure of the insulating layer to busbar connector, using the high molecular material with glue, on
Lower two layers of polymer material film with glue by flexible circuit board and welding after busbar connector press together, make flexible circuit board and
Busbar connector after welding is embedded in high molecular material, to form the unique connection type different from the prior art.Not only
It is only to remove and save the bracket of current mode and change connection type.Busbar connector after making flexible circuit board and welding
It as the module of standard, is embedded in high molecular material and the component is bent, three-dimensional can install, it is empty to reduce assembling
Between, have (up to V-0 rank) preferably more fire-retardant than current product, it is pressure-resistant (reaching 5000VDC) and shockproof.
Claims (5)
1. a kind of composite structure of power battery busbar connector, it is characterised in that: including laminar busbar connector, be welded on busbar connector
The two sides of flexible circuit board, harness of the flexible circuit board as busbar connector, busbar connector cover polymer material film, are pressed on
The high molecular material mould of busbar connector two sides is welded with temperature-monitoring element on the tab interconnecting piece of the busbar connector.
2. the composite structure of power battery busbar connector according to claim 1, it is characterised in that: the flake busbar connector
Multiple buffering spring sheets are arranged in surface.
3. according to claim 1 or the composite structure of 2 any power battery busbar connectors, it is characterised in that: the height
Molecular material film be selected from polyimides/acrylic composite material film, polyimide/epoxy glue composite material film, polytetrafluoroethylene (PTFE)/
At least one of acrylic composite material film, polytetrafluoroethylene (PTFE)/epoxy glue composite material film.
4. a kind of manufacturing method of the composite structure of power battery busbar connector, which comprises the following steps:
S1. the copper material pad in flexible circuit board and the welding position at the tab interconnecting piece on busbar connector are welded；
S2. it is pressed by viscose glue in the two sides of the busbar connector using polymer material film；
S3. tab interconnecting piece welding temperature monitoring element on the busbar.
5. the manufacturing method of the composite structure of power battery busbar connector according to claim 4, it is characterised in that: the step
In rapid S1, the welding procedure at copper material pad and busbar connector tab interconnecting piece in flexible circuit board using laser welding process or
Ultrasonic welding processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910086492.3A CN109830640A (en) | 2019-01-29 | 2019-01-29 | A kind of composite structure and manufacturing method of power battery busbar connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910086492.3A CN109830640A (en) | 2019-01-29 | 2019-01-29 | A kind of composite structure and manufacturing method of power battery busbar connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109830640A true CN109830640A (en) | 2019-05-31 |
Family
ID=66862815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910086492.3A Pending CN109830640A (en) | 2019-01-29 | 2019-01-29 | A kind of composite structure and manufacturing method of power battery busbar connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109830640A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111435725A (en) * | 2019-12-24 | 2020-07-21 | 蜂巢能源科技有限公司 | Power battery, bus bar assembly of power battery and processing method of bus bar assembly |
| CN112310560A (en) * | 2019-10-21 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Connection assembly, battery module, battery pack, and apparatus using battery module as power source |
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| US20090274956A1 (en) * | 2007-09-27 | 2009-11-05 | Shinichiro Kosugi | Bus bar |
| CN203503729U (en) * | 2013-09-10 | 2014-03-26 | 日照华轩新能源有限公司 | Battery pack connecting sheet with anti-pulling effect |
| TW201742305A (en) * | 2016-05-20 | 2017-12-01 | Molex Llc | Battery device and battery connection module wherein the insulating frame, the electrode connecting members, the adapter conductive members and the adapter circuit board form the battery connection module so that the process for assembling them with the battery pack can be simplified |
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2019
- 2019-01-29 CN CN201910086492.3A patent/CN109830640A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090274956A1 (en) * | 2007-09-27 | 2009-11-05 | Shinichiro Kosugi | Bus bar |
| CN203503729U (en) * | 2013-09-10 | 2014-03-26 | 日照华轩新能源有限公司 | Battery pack connecting sheet with anti-pulling effect |
| TW201742305A (en) * | 2016-05-20 | 2017-12-01 | Molex Llc | Battery device and battery connection module wherein the insulating frame, the electrode connecting members, the adapter conductive members and the adapter circuit board form the battery connection module so that the process for assembling them with the battery pack can be simplified |
| CN107785526A (en) * | 2017-09-29 | 2018-03-09 | 苏州西典机电有限公司 | Electrokinetic cell integration module |
| CN207381466U (en) * | 2017-10-19 | 2018-05-18 | 江苏金坛绿能新能源科技有限公司 | Power battery positive and negative anodes fast integration structure |
| CN207801088U (en) * | 2018-01-31 | 2018-08-31 | 宁德时代新能源科技股份有限公司 | Bus-bar and battery modules |
| CN209357817U (en) * | 2019-01-29 | 2019-09-06 | 广州安费诺诚信软性电路有限公司 | A kind of composite structure of power battery busbar connector |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310560A (en) * | 2019-10-21 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Connection assembly, battery module, battery pack, and apparatus using battery module as power source |
| WO2021078067A1 (en) * | 2019-10-21 | 2021-04-29 | 宁德时代新能源科技股份有限公司 | Connection assembly, battery module, battery pack, and device using battery module as power source |
| EP3930091A4 (en) * | 2019-10-21 | 2022-06-08 | Contemporary Amperex Technology Co., Limited | Connection assembly, battery module, battery pack, and device using battery module as power source |
| JP2022553539A (en) * | 2019-10-21 | 2022-12-23 | 寧徳時代新能源科技股▲分▼有限公司 | Connection units, battery modules, battery packs, and devices that use battery modules as power sources |
| JP7383139B2 (en) | 2019-10-21 | 2023-11-17 | 寧徳時代新能源科技股▲分▼有限公司 | Connection units, battery modules, battery packs, and devices that use battery modules as power sources |
| US11843129B2 (en) | 2019-10-21 | 2023-12-12 | Contemporary Amperex Technology Co., Limited | Connecting assembly, battery module, battery pack, and device using battery module as power supply |
| CN111435725A (en) * | 2019-12-24 | 2020-07-21 | 蜂巢能源科技有限公司 | Power battery, bus bar assembly of power battery and processing method of bus bar assembly |
| WO2021129523A1 (en) * | 2019-12-24 | 2021-07-01 | 蜂巢能源科技有限公司 | Traction battery, busbar component of traction battery and method for processing busbar component |
| EP3910726A4 (en) * | 2019-12-24 | 2023-08-02 | Svolt Energy Technology Co., Ltd | Traction battery, busbar component of traction battery and method for processing busbar component |
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