CN207572446U - Battery case and its battery modules, conductive connecting piece - Google Patents
Battery case and its battery modules, conductive connecting piece Download PDFInfo
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- CN207572446U CN207572446U CN201721755361.2U CN201721755361U CN207572446U CN 207572446 U CN207572446 U CN 207572446U CN 201721755361 U CN201721755361 U CN 201721755361U CN 207572446 U CN207572446 U CN 207572446U
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- copper
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- connecting piece
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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
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Abstract
The utility model is related to a kind of battery case and its battery modules, conductive connecting pieces.Battery case includes babinet and the battery modules in babinet, battery modules include multiple battery cores arranged side by side, battery core positioned at battery modules end is connected with rat tail by conductive connecting piece, the conductive connecting piece is Copper-Aluminum compound connection sheet, the upper strata of conductive connecting piece is layers of copper, lower floor is aluminium layer, and being conductively connected on piece has the layers of copper clear area for being electrically connected battery core pole and aluminium layer and the layers of copper bonding pad that rat tail is made to be connect with layers of copper.Conductive connecting piece in the utility model, 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 clear area place other than, thickness is identical elsewhere, convenient in assembling process to the clamping of conductive connecting piece.
Description
Technical field
The utility model is related to a kind of battery case and its battery modules, conductive connecting pieces.
Background technology
In power battery core field, in order to obtain larger output voltage and electric current, often multiple battery cores are assembled integrally
Battery modules are formed, common externally electric discharge again after the battery core serial or parallel connection in battery modules.In said structure, it is commonly used
To conductive connecting piece to realize being conductively connected between adjacent battery core, between battery modules and rat tail.For being used to implement
For the conductive connecting piece connected between battery modules and rat tail, because the material at battery core connection structure is generally aluminium
Matter, the core of rat tail are copper material, in order to avoid electrochemical corrosion caused by when different metal materials are conductively connected, one
As the conductive connecting piece used at this is set as two parts, a part is the aluminium material part for being connect with battery core, one
It is divided into the copper material part for being connect with rat tail.
For example, an Authorization Notice No. is the China of 203466249 U of CN, entitled electrode chip architecture and battery modules
Patent is to disclose the electrode chip architecture used between a kind of battery modules and rat tail, which includes Z-shape
Copper sheet, the lower part of the lower step section of copper sheet is provided with mounting groove, is provided on aluminium flake, copper sheet by aluminium in mounting groove
What the upside of piece was exposed allow for hole, is provided on aluminium flake and passes through the mounting hole being connect 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：Using torque ultrasound between copper sheet and aluminium flake
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.
Utility model content
The purpose of this utility model is to provide a kind of battery modules of the conductive connecting piece high with connection reliability, sheets
The purpose of utility model, which also resides in, to be provided the conductive connecting piece used in a kind of above-mentioned battery modules and uses above-mentioned battery mould
The battery case of group.
To achieve the above object, a kind of technical solution 1 of battery modules of the utility model is：A kind of battery modules, including
Multiple battery cores arranged side by side, are connected in the battery core of battery modules end and are conductively connected for what is connect with rat tail
Piece, the conductive connecting piece are Copper-Aluminum compound connection sheet, and the upper strata of conductive connecting piece is layers of copper, and lower floor is aluminium layer, is conductively connected
The layers of copper connection that on piece has the layers of copper clear area for being electrically connected battery core pole and aluminium layer and rat tail is made to be connect with layers of copper
Area.
Conductive connecting piece in the utility model, is made of copper aluminum composite material, is eliminated between copper sheet and aluminium flake
Ultrasonic bonding process, not only sound construction, connection reliability height, and substantially increase the packaging efficiency of battery modules.This
Outside, conductive connecting piece in addition to be equipped with clear area place other than, thickness is identical elsewhere, convenient in assembling process to being conductively connected
The clamping of piece.
A kind of technical solution 2 of battery modules of the utility model is further improved on the basis of technical solution 1：Institute
The relief hole for being provided in the layers of copper of conductive connecting piece and exposing lower aluminum layer is stated, the region surrounded on the inside of the relief hole forms institute
State layers of copper clear area.
A kind of technical solution 3 of battery modules of the utility model is to do further to change on the basis of technical solution 1 or 2
Into：The on piece that is conductively connected is provided with perforation, and the position where the perforation forms the layers of copper bonding pad, and rat tail passes through
The perforation is connect with conductive connecting piece.
To achieve the above object, a kind of technical solution 1 of battery case of the utility model is：A kind of battery case, including babinet
And the battery modules in babinet, the battery modules include multiple battery cores arranged side by side, positioned at battery modules end
Battery core rat tail is connected with by conductive connecting piece, the conductive connecting piece is Copper-Aluminum compound connection sheet, conductive connecting piece
Upper strata for layers of copper, lower floor is aluminium layer, be conductively connected on piece have make the layers of copper clear area that battery core pole is electrically connected with aluminium layer with
And the layers of copper bonding pad that rat tail is made to be connect with layers of copper.
Conductive connecting piece in the utility model, is made of copper aluminum composite material, is eliminated between copper sheet and aluminium flake
Ultrasonic bonding process, not only sound construction, connection reliability height, and substantially increase the packaging efficiency of battery modules.This
Outside, conductive connecting piece in addition to be equipped with clear area place other than, thickness is identical elsewhere, convenient in assembling process to being conductively connected
The clamping of piece.
A kind of technical solution 2 of battery case of the utility model is further improved on the basis of technical solution 1：It is 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 clear area.
A kind of technical solution 3 of battery case of the utility model is further improved on the basis of technical solution 1 or 2：
The on piece that is conductively connected is provided with perforation, and the position where the perforation forms the layers of copper bonding pad, and rat tail passes through institute
Perforation is stated to connect with conductive connecting piece.
To achieve the above object, a kind of technical solution 1 of conductive connecting piece of the utility model is：A kind of conductive connecting piece,
The conductive connecting piece is Copper-Aluminum compound connection sheet, and the upper strata of conductive connecting piece is layers of copper, and lower floor is aluminium layer, is conductively connected on piece
With making the layers of copper clear area that battery core pole and aluminium layer are electrically connected and the layers of copper bonding pad that rat tail is made to be connect with layers of copper.
The conductive connecting piece of the utility model, is made of copper aluminum composite material, is eliminated super between copper sheet and aluminium flake
Sound wave welding sequence, not only sound construction, connection reliability height, and substantially increase the packaging efficiency of battery modules.In addition,
Conductive connecting piece in addition to be equipped with clear area place other than, thickness is identical elsewhere, convenient in assembling process to conductive connecting piece
Clamping.
A kind of technical solution 2 of conductive connecting piece of the utility model is further improved on the basis of technical solution 1：
The relief hole for exposing lower aluminum layer is provided in the layers of copper of the conductive connecting piece, the region surrounded on the inside of the relief hole is formed
The layers of copper clear area.
A kind of technical solution 3 of conductive connecting piece of the utility model is to do further to change on the basis of technical solution 1 or 2
Into：The on piece that is conductively connected is provided with perforation, and the position where the perforation forms the layers of copper bonding pad, and rat tail passes through
The perforation is connect with conductive connecting piece.
Description of the drawings
Fig. 1 is the structure chart of conductive connecting piece junction in a kind of battery case specific embodiment 1 of the utility model；
Fig. 2 is the partial top view of battery modules in a kind of battery case specific embodiment 1 of the utility model；
Fig. 3 is the front view of conductive connecting piece in a kind of battery case specific embodiment 1 of the utility model；
Fig. 4 is the vertical view of conductive connecting piece in a kind of battery case specific embodiment 1 of the utility model；
Fig. 5 is the front view of conductive connecting piece in a kind of battery case specific embodiment 2 of the utility model；
In figure：1st, battery core；2nd, conductive connecting piece；21st, layers of copper；211st, relief hole；22nd, aluminium layer；221st, location hole；23rd, it wears
Hole；3rd, bolt is connected；4th, copper bar；5th, aluminium flake.
Specific embodiment
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
A kind of specific embodiment 1 of the battery case of the utility model, the battery modules including babinet and in babinet,
The concrete structure of the battery modules as shown in Figures 1 to 4, including multiple battery cores 1 arranged side by side, leads between adjacent battery core 1
It crosses aluminium flake 5 to connect, rat tail is connected with by conductive connecting piece 2 in the battery core of battery modules end, the conduction is even
As depicted in figs. 1 and 2, conductive connecting piece 2 is that shape is Z-shaped stair-stepping Copper-Aluminum compound connection sheet to the concrete structure of contact pin, is led
The upper strata of electric connecting sheet is layers of copper 21, and lower floor is aluminium layer 22, is provided on the top cascaded surface of conductive connecting piece and is used for and battery core
The layers of copper clear area of pole connection, the layers of copper bonding pad for being connect with rat tail is provided on lower step face, wherein, on
The layers of copper 21 of portion's cascaded surface is equipped with the circular relief hole 211 for its underpart aluminium layer to be exposed, and the upper end of relief hole 211 is opened
Flaring structure is provided at mouthful, the region surrounded on the inside of the relief hole forms the layers of copper clear area, the corresponding relief hole 211
The circular location hole 221 for being connect with battery core pole is provided on aluminium layer.It is set on the lower step face of conductive connecting piece
There is perforation 23, the position where the perforation forms the layers of copper bonding pad, and rat tail passes through the perforation and conductive connecting piece
Connection.
The conductive connecting piece in actual use, by being conductively connected the location hole of on piece determined by the pole of battery core 1
It is connect behind position with the lower aluminum layer of conductive connecting piece, rat tail passes through the connection bolt that is installed in the perforation of conductive connecting piece
3 connect with conductive connecting piece, wherein, upper copper layer of the copper bar 4 of its connecting pin with being conductively connected contact pin when rat tail connects
21 fittings.
Conductive connecting piece in the utility model, is made of copper aluminum composite material, is eliminated between copper sheet and aluminium flake
Ultrasonic bonding process, not only sound construction, connection reliability height, and substantially increase the packaging efficiency of battery modules.This
Outside, conductive connecting piece in addition to be equipped with relief hole place other than, thickness is identical elsewhere, convenient in assembling process to being conductively connected
The clamping of piece.
The specific embodiment 2 of the battery case of the utility model and specific embodiment 1 difference lies in：The side of the relief hole
Edge can be rectangle or polygon or ellipse.Or as described in Figure 5, the entire top cascaded surface of conductive connecting piece
Upside be all provided with being set to layers of copper clear area.
The specific embodiment 3 of the battery case of the utility model and specific embodiment 1 difference lies in：The conductive connecting piece
Shape can also be tabular.
In the specific embodiment of the battery modules of the utility model, concrete structure and a kind of above-mentioned each embodiment of battery case
Battery modules structure it is identical, be no longer described in detail herein.
The specific embodiment of the conductive connecting piece of the utility model, concrete structure and a kind of above-mentioned each embodiment of battery case
In conductive connecting piece structure it is identical, be no longer described in detail herein.
Claims (9)
1. a kind of battery modules including multiple battery cores arranged side by side, are connected in the battery core of battery modules end and are used for
The conductive connecting piece being connect with rat tail, it is characterised in that：The conductive connecting piece is Copper-Aluminum compound connection sheet, is conductively connected
The upper strata of piece is layers of copper, and lower floor is aluminium layer, and being conductively connected on piece has the layers of copper clear area that battery core pole is made to be electrically connected with aluminium layer
And the layers of copper bonding pad that rat tail is made to be connect with layers of copper.
2. battery modules according to claim 1, it is characterised in that：It is 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 form the layers of copper clear area.
3. battery modules according to claim 1 or 2, it is characterised in that：The on piece that is conductively connected is provided with perforation, should
Position where perforation forms the layers of copper bonding pad, and rat tail is connect by the perforation with conductive connecting piece.
4. a kind of battery case, the battery modules including babinet and in babinet, the battery modules are set side by side including multiple
The battery core put, the battery core positioned at battery modules end are connected with rat tail by conductive connecting piece, it is characterised in that：It is described to lead
Electric connecting sheet is Copper-Aluminum compound connection sheet, and the upper strata of conductive connecting piece is layers of copper, and lower floor is aluminium layer, and being conductively connected on piece and having makes
The layers of copper clear area that battery core pole and aluminium layer are electrically connected and the layers of copper bonding pad that rat tail is made to be connect with layers of copper.
5. battery case according to claim 4, it is characterised in that：It is 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 form the layers of copper clear area.
6. battery case according to claim 4 or 5, it is characterised in that：The on piece that is conductively connected is provided with perforation, this is worn
Position where hole forms the layers of copper bonding pad, and rat tail 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 floor is aluminium layer, and being conductively connected on piece has the layers of copper clear area that battery core pole is made to be electrically connected with aluminium layer and make
The layers of copper bonding pad that rat tail 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 form the layers of copper clear area.
9. conductive connecting piece according to claim 7 or 8, it is characterised in that：The on piece that is conductively connected is provided with perforation,
Position where the perforation forms the layers of copper bonding pad, and rat tail is connect by the perforation with conductive connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721755361.2U CN207572446U (en) | 2017-12-15 | 2017-12-15 | Battery case and its battery modules, conductive connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721755361.2U CN207572446U (en) | 2017-12-15 | 2017-12-15 | Battery case and its battery modules, conductive connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207572446U true CN207572446U (en) | 2018-07-03 |
Family
ID=62687119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721755361.2U Active CN207572446U (en) | 2017-12-15 | 2017-12-15 | Battery case and its battery modules, conductive connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207572446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920960A (en) * | 2019-02-28 | 2019-06-21 | 珠海格力精密模具有限公司 | Conductive bar and power battery |
| CN109935772A (en) * | 2017-12-15 | 2019-06-25 | 郑州深澜动力科技有限公司 | A kind of battery case and its battery modules, conductive connecting piece |
-
2017
- 2017-12-15 CN CN201721755361.2U patent/CN207572446U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109935772A (en) * | 2017-12-15 | 2019-06-25 | 郑州深澜动力科技有限公司 | A kind of battery case and its battery modules, conductive connecting piece |
| CN109920960A (en) * | 2019-02-28 | 2019-06-21 | 珠海格力精密模具有限公司 | Conductive bar and power battery |
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