CN109935772A - A kind of battery case and its battery modules, conductive connecting piece - Google Patents
A kind of battery case and its battery modules, conductive connecting piece Download PDFInfo
- Publication number
- CN109935772A CN109935772A CN201711349992.9A CN201711349992A CN109935772A CN 109935772 A CN109935772 A CN 109935772A CN 201711349992 A CN201711349992 A CN 201711349992A CN 109935772 A CN109935772 A CN 109935772A
- Authority
- CN
- China
- Prior art keywords
- copper
- layers
- connecting piece
- conductive connecting
- battery
- 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
- 229910052802 copper Inorganic materials 0.000 claims abstract description 70
- 239000010949 copper Substances 0.000 claims abstract description 70
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 55
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 29
- 239000004411 aluminium Substances 0.000 claims abstract description 24
- -1 Copper-Aluminum compound Chemical class 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 5
- 238000004806 packaging method and process Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000002604 ultrasonography Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005476 soldering 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 present invention relates to a kind of battery case and its battery modules, conductive connecting piece.Battery case includes cabinet and is located in the box body battery modules, battery modules include multiple battery cores arranged side by side, battery core positioned at battery modules end is connected with connection wiring harness by conductive connecting piece, the conductive connecting piece is Copper-Aluminum compound connection sheet, the upper layer of conductive connecting piece is layers of copper, lower layer is aluminium layer, and being conductively connected on piece has the layers of copper blank area for being electrically connected battery core pole and aluminium layer and the layers of copper bonding pad for connecting connection wiring harness with layers of copper.Conductive connecting piece in the present invention, is made of copper aluminum composite material, eliminates the ultrasonic bonding process between copper sheet and aluminium flake, not only sound construction, and connection reliability is high, and substantially increases the packaging efficiency of battery modules.In addition, conductive connecting piece in addition to be equipped with blank area place other than, thickness is identical elsewhere, convenient in assembling process to the clamping of conductive connecting piece.
Description
Technical field
The present invention relates to a kind of battery case and its battery modules, conductive connecting piece.
Background technique
In power battery core field, in order to obtain biggish output voltage and electric current, often multiple battery cores are assembled integrally
Constitute battery modules, common externally electric discharge again after the battery core serial or parallel connection in battery modules.In said structure, it is commonly used
The conductive connection between adjacent battery core, between battery modules and connection wiring harness is realized to conductive connecting piece.For for realizing
For the conductive connecting piece connected between battery modules and connection wiring harness, because the material at battery core connection structure is generally aluminium
Matter, the core of connection wiring harness are copper material, in order to avoid electrochemical corrosion caused by due to different metal materials are conductively connected, one
As by the conductive connecting piece used at this set two parts, a part is the aluminium material part for connecting with battery core, one
It is divided into the copper material part for connecting with connection wiring harness.
For example, an Authorization Notice No. is 203466249 U of CN, the China of entitled electrode chip architecture and battery modules
Patent is to disclose the electrode chip architecture used between a kind of battery modules and connection wiring harness, which includes Z-shape
Copper sheet, the lower part of the lower step section of copper sheet is provided with mounting groove, aluminium flake is embedded in mounting groove, is provided on copper sheet by aluminium
What the upside of piece was exposed allow for hole, is provided on aluminium flake and passes through the mounting hole connecting with aluminium flake, copper sheet and aluminium flake for battery core pole
By being welded and fixed.The electrode chip architecture in actual use the shortcomings that be: between copper sheet and aluminium flake using torque ultrasound
Wave soldering is fixed, and welding quality can not be taken care of yourself, and connection loosing, the conduction of electrode chip architecture are easily fixed under long-time vibration environment
Reliability is low；In addition, copper sheet is with aluminium flake, size is superimposed in a thickness direction, leads to the thickness at overlapping portion and at other parts
Difference is not easy to the pressing force adjustment of laser welding tooling.
Summary of the invention
The purpose of the present invention is to provide a kind of battery modules of conductive connecting piece high with connection reliability, the present invention
Purpose also reside in conductive connecting piece used in a kind of above-mentioned battery modules and the battery using above-mentioned battery modules be provided
Case.
To achieve the above object, a kind of technical solution 1 of battery modules of the present invention is: a kind of battery modules, including multiple
Battery core arranged side by side is connected with the conductive connecting piece for connecting with connection wiring harness in the battery core of battery modules end,
The conductive connecting piece is Copper-Aluminum compound connection sheet, and the upper layer of conductive connecting piece is layers of copper, and lower layer is aluminium layer, is conductively connected on piece
With the layers of copper blank area for being electrically connected battery core pole and aluminium layer and the layers of copper bonding pad for connecting connection wiring harness with layers of copper.
Conductive connecting piece in the present invention, is made of copper aluminum composite material, eliminates the ultrasound between copper sheet and aluminium flake
Wave welding sequence, not only sound construction, connection reliability is high, and substantially increases the packaging efficiency of battery modules.In addition, leading
Electric connecting sheet in addition to be equipped with blank area place other than, thickness is identical elsewhere, convenient in assembling process to conductive connecting piece
Clamping.
A kind of technical solution 2 of battery modules of the present invention is further improved on the basis of technical solution 1: described to lead
The relief hole for exposing lower aluminum layer is provided in the layers of copper of electric connecting sheet, the region surrounded on the inside of the relief hole constitutes the copper
Layer blank area.
A kind of technical solution 3 of battery modules of the present invention is further improved on the basis of technical solution 1 or 2: institute
It states conductive connection on piece and is provided with perforation, the position where the perforation constitutes the layers of copper bonding pad, and connection wiring harness passes through described
Perforation is connect with conductive connecting piece.
To achieve the above object, a kind of technical solution 1 of battery case of the present invention is: a kind of battery case, including cabinet and
Battery modules are located in the box body, the battery modules include multiple battery cores arranged side by side, the electricity positioned at battery modules end
Core is connected with connection wiring harness by conductive connecting piece, and the conductive connecting piece is Copper-Aluminum compound connection sheet, conductive connecting piece it is upper
Layer is layers of copper, and lower layer is aluminium layer, and being conductively connected on piece has the layers of copper blank area for being electrically connected battery core pole with aluminium layer and make
The layers of copper bonding pad that connection wiring harness is connect with layers of copper.
Conductive connecting piece in the present invention, is made of copper aluminum composite material, eliminates the ultrasound between copper sheet and aluminium flake
Wave welding sequence, not only sound construction, connection reliability is high, and substantially increases the packaging efficiency of battery modules.In addition, leading
Electric connecting sheet in addition to be equipped with blank area place other than, thickness is identical elsewhere, convenient in assembling process to conductive connecting piece
Clamping.
A kind of technical solution 2 of battery case of the present invention is further improved on the basis of technical solution 1: the conduction
The relief hole for exposing lower aluminum layer is provided in the layers of copper of connection sheet, the region surrounded on the inside of the relief hole constitutes the layers of copper
Blank area.
A kind of technical solution 3 of battery case of the present invention is further improved on the basis of technical solution 1 or 2: described
It is conductively connected on piece and is provided with perforation, the position where the perforation constitutes the layers of copper bonding pad, and connection wiring harness is worn by described
Hole is connect with conductive connecting piece.
To achieve the above object, a kind of technical solution 1 of conductive connecting piece of the present invention is: a kind of conductive connecting piece, described
Conductive connecting piece is Copper-Aluminum compound connection sheet, and the upper layer of conductive connecting piece is layers of copper, and lower layer is aluminium layer, and being conductively connected on piece has
Make the layers of copper blank area that battery core pole and aluminium layer are electrically connected and the layers of copper bonding pad for connecting connection wiring harness with layers of copper.
Conductive connecting piece of the invention, is made of copper aluminum composite material, eliminates the ultrasonic wave between copper sheet and aluminium flake
Welding sequence, not only sound construction, connection reliability is high, and substantially increases the packaging efficiency of battery modules.In addition, conductive
Connection sheet in addition to be equipped with blank area place other than, thickness is identical elsewhere, convenient in assembling process to the folder of conductive connecting piece
It holds.
A kind of technical solution 2 of conductive connecting piece of the present invention is further improved on the basis of technical solution 1: described
The relief hole for exposing lower aluminum layer is provided in the layers of copper of conductive connecting piece, described in the region composition surrounded on the inside of the relief hole
Layers of copper blank area.
A kind of technical solution 3 of conductive connecting piece of the present invention is further improved on the basis of technical solution 1 or 2:
The conductive connection on piece is provided with perforation, and the position where the perforation constitutes the layers of copper bonding pad, and connection wiring harness passes through institute
Perforation is stated to connect with conductive connecting piece.
Detailed description of the invention
Fig. 1 is the structure chart of conductive connecting piece junction in a kind of battery case specific embodiment 1 of the present invention；
Fig. 2 is the partial top view of battery modules in a kind of battery case specific embodiment 1 of the present invention；
Fig. 3 is the main view of conductive connecting piece in a kind of battery case specific embodiment 1 of the present invention；
Fig. 4 is the top view of conductive connecting piece in a kind of battery case specific embodiment 1 of the present invention；
Fig. 5 is the main view of conductive connecting piece in a kind of battery case specific embodiment 2 of the present invention；
In figure: 1, battery core；2, conductive connecting piece；21, layers of copper；211, relief hole；22, aluminium layer；221, location hole；23, it perforates；3,
Connect bolt；4, copper bar；5, aluminium flake.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
A kind of specific embodiment 1 of battery case of the invention, including cabinet and battery modules are located in the box body, it is described
The specific structure of battery modules is as shown in Figures 1 to 4, including multiple battery cores 1 arranged side by side, passes through aluminium between adjacent battery core 1
Piece 5 connects, and is connected with connection wiring harness, the conductive connecting piece by conductive connecting piece 2 in the battery core of battery modules end
Specific structure it is as depicted in figs. 1 and 2, conductive connecting piece 2 is that shape is Z-shaped stair-stepping Copper-Aluminum compound connection sheet, conduction even
The upper layer of contact pin is layers of copper 21, and lower layer is aluminium layer 22, be provided on the top cascaded surface of conductive connecting piece for battery core pole
The layers of copper blank area of connection is provided with the layers of copper bonding pad for connecting with connection wiring harness on lower step face, wherein top rank
The layers of copper 21 of tread is equipped with circular relief hole 211 for exposing its underpart aluminium layer, at the upper end opening of relief hole 211
It is provided with flaring structure, the region surrounded on the inside of the relief hole constitutes the layers of copper blank area, the aluminium layer of the corresponding relief hole 211
On be provided with circular location hole 221 for connecting with battery core pole.It is provided with and wears on the lower step face of conductive connecting piece
Hole 23, the position where the perforation constitute the layers of copper bonding pad, and connection wiring harness is connect by the perforation with conductive connecting piece.
In actual use, the pole of battery core 1 is fixed by the location hole for being conductively connected on piece for the conductive connecting piece
It is connect behind position with the lower aluminum layer of conductive connecting piece, connection wiring harness passes through the connection bolt that is installed in the perforation of conductive connecting piece
3 connect with conductive connecting piece, wherein the upper copper layer of the copper bar 4 of its connecting pin and conductive connection contact pin when connection wiring harness connects
21 fittings.
Conductive connecting piece in the present invention, is made of copper aluminum composite material, eliminates the ultrasound between copper sheet and aluminium flake
Wave welding sequence, not only sound construction, connection reliability is high, and substantially increases the packaging efficiency of battery modules.In addition, leading
Electric connecting sheet in addition to be equipped with relief hole place other than, thickness is identical elsewhere, convenient in assembling process to conductive connecting piece
Clamping.
The specific embodiment 2 of battery case of the invention and the difference of specific embodiment 1 are: the edge of the relief hole can
To be rectangle or polygon, it is also possible to ellipse.Or as described in Figure 5, the entire top cascaded surface of conductive connecting piece is upper
Side, which is all provided with, is set to layers of copper blank area.
The specific embodiment 3 of battery case of the invention and the difference of specific embodiment 1 are: outside the conductive connecting piece
Shape is also possible to tabular.
The specific embodiment of battery modules of the invention, the electricity in specific structure and a kind of above-mentioned each embodiment of battery case
The structure of Chi Mo group is identical, is no longer described in detail herein.
The specific embodiment of conductive connecting piece of the invention, in specific structure and a kind of above-mentioned each embodiment of battery case
The structure of conductive connecting piece is identical, is no longer described in detail herein.
Claims (9)
1. a kind of battery modules are connected in the battery core of battery modules end and are used for including multiple battery cores arranged side by side
The conductive connecting piece being connect with connection wiring harness, it is characterised in that: the conductive connecting piece is Copper-Aluminum compound connection sheet, is conductively connected
The upper layer of piece is layers of copper, and lower layer is aluminium layer, and being conductively connected on piece has the layers of copper blank area for being electrically connected battery core pole with aluminium layer
And the layers of copper bonding pad for connecting connection wiring harness with layers of copper.
2. battery modules according to claim 1, it is characterised in that: be provided with by under in the layers of copper of the conductive connecting piece
The relief hole that portion's aluminium layer exposes, the region that relief hole inside surrounds constitute the layers of copper blank area.
3. battery modules according to claim 1 or 2, it is characterised in that: the conductive connection on piece is provided with perforation, should
Position where perforation constitutes the layers of copper bonding pad, and connection wiring harness is connect by the perforation with conductive connecting piece.
4. a kind of battery case, including cabinet and battery modules are located in the box body, the battery modules include multiple setting side by side
The battery core set, the battery core positioned at battery modules end are connected with connection wiring harness by conductive connecting piece, it is characterised in that: described to lead
Electric connecting sheet is Copper-Aluminum compound connection sheet, and the upper layer of conductive connecting piece is layers of copper, and lower layer is aluminium layer, and being conductively connected on piece and having makes
The layers of copper blank area that battery core pole and aluminium layer are electrically connected and the layers of copper bonding pad for connecting connection wiring harness with layers of copper.
5. battery case according to claim 4, it is characterised in that: be provided in the layers of copper of the conductive connecting piece by lower part
The relief hole that aluminium layer exposes, the region that relief hole inside surrounds constitute the layers of copper blank area.
6. battery case according to claim 4 or 5, it is characterised in that: the conductive connection on piece is provided with perforation, this is worn
Position where hole constitutes the layers of copper bonding pad, and connection wiring harness is connect by the perforation with conductive connecting piece.
7. a kind of conductive connecting piece, it is characterised in that: the conductive connecting piece be Copper-Aluminum compound connection sheet, conductive connecting piece it is upper
Layer is layers of copper, and lower layer is aluminium layer, and being conductively connected on piece has the layers of copper blank area for being electrically connected battery core pole with aluminium layer and make
The layers of copper bonding pad that connection wiring harness is connect with layers of copper.
8. conductive connecting piece according to claim 7, it is characterised in that: be provided in the layers of copper of the conductive connecting piece by
The relief hole that lower aluminum layer is exposed, the region that relief hole inside surrounds constitute the layers of copper blank area.
9. conductive connecting piece according to claim 7 or 8, it is characterised in that: the conductive connection on piece is provided with perforation,
Position where the perforation constitutes the layers of copper bonding pad, and connection wiring harness is connect by the perforation with conductive connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711349992.9A CN109935772A (en) | 2017-12-15 | 2017-12-15 | A kind of battery case and its battery modules, conductive connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711349992.9A CN109935772A (en) | 2017-12-15 | 2017-12-15 | A kind of battery case and its battery modules, conductive connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109935772A true CN109935772A (en) | 2019-06-25 |
Family
ID=66979976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711349992.9A Pending CN109935772A (en) | 2017-12-15 | 2017-12-15 | A kind of battery case and its battery modules, conductive connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109935772A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212146A (en) * | 2019-07-10 | 2019-09-06 | 河南合力新材料股份有限公司 | A kind of soft-package battery Copper-Aluminum compound battery connecting piece |
| CN110233230A (en) * | 2019-07-10 | 2019-09-13 | 河南合力新材料股份有限公司 | A kind of soft-package battery connector copper aluminum composite material and production technology |
| CN114284643A (en) * | 2021-12-17 | 2022-04-05 | 上海瑞浦青创新能源有限公司 | Multi-row module structure |
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| DE102012002355A1 (en) * | 2012-02-07 | 2013-08-08 | Volkswagen Aktiengesellschaft | Electrical conductor for vehicle e.g. motor car, has connectors which in parallel to memory cell pack or memory cell, and cross section of electric conductor over entire extension is not constant while current density is constant |
| CN203466249U (en) * | 2013-08-30 | 2014-03-05 | 宁德时代新能源科技有限公司 | Electrode plate structure and battery module |
| CN206059494U (en) * | 2016-08-23 | 2017-03-29 | 多氟多（焦作）新能源科技有限公司 | A kind of bus-bar, battery module and battery bag |
| CN206076349U (en) * | 2016-08-16 | 2017-04-05 | 宁德时代新能源科技股份有限公司 | Electric connecting sheet and battery modules |
| CN206742365U (en) * | 2017-04-21 | 2017-12-12 | 安徽欧鹏巴赫新能源科技有限公司 | Soft package power lithium ion battery module |
| CN207572446U (en) * | 2017-12-15 | 2018-07-03 | 郑州深澜动力科技有限公司 | Battery case and its battery modules, conductive connecting piece |
-
2017
- 2017-12-15 CN CN201711349992.9A patent/CN109935772A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012002355A1 (en) * | 2012-02-07 | 2013-08-08 | Volkswagen Aktiengesellschaft | Electrical conductor for vehicle e.g. motor car, has connectors which in parallel to memory cell pack or memory cell, and cross section of electric conductor over entire extension is not constant while current density is constant |
| CN203466249U (en) * | 2013-08-30 | 2014-03-05 | 宁德时代新能源科技有限公司 | Electrode plate structure and battery module |
| CN206076349U (en) * | 2016-08-16 | 2017-04-05 | 宁德时代新能源科技股份有限公司 | Electric connecting sheet and battery modules |
| CN206059494U (en) * | 2016-08-23 | 2017-03-29 | 多氟多（焦作）新能源科技有限公司 | A kind of bus-bar, battery module and battery bag |
| CN206742365U (en) * | 2017-04-21 | 2017-12-12 | 安徽欧鹏巴赫新能源科技有限公司 | Soft package power lithium ion battery module |
| CN207572446U (en) * | 2017-12-15 | 2018-07-03 | 郑州深澜动力科技有限公司 | Battery case and its battery modules, conductive connecting piece |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212146A (en) * | 2019-07-10 | 2019-09-06 | 河南合力新材料股份有限公司 | A kind of soft-package battery Copper-Aluminum compound battery connecting piece |
| CN110233230A (en) * | 2019-07-10 | 2019-09-13 | 河南合力新材料股份有限公司 | A kind of soft-package battery connector copper aluminum composite material and production technology |
| CN114284643A (en) * | 2021-12-17 | 2022-04-05 | 上海瑞浦青创新能源有限公司 | Multi-row module structure |
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