CN106784562A - A kind of electrical connection module of lithium battery - Google Patents
A kind of electrical connection module of lithium battery Download PDFInfo
- Publication number
- CN106784562A CN106784562A CN201611144067.8A CN201611144067A CN106784562A CN 106784562 A CN106784562 A CN 106784562A CN 201611144067 A CN201611144067 A CN 201611144067A CN 106784562 A CN106784562 A CN 106784562A
- Authority
- CN
- China
- Prior art keywords
- connector
- lithium battery
- electrical connection
- connection module
- connection sheet
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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 invention discloses a kind of electrical connection module of lithium battery, including the first connector, the second connector and weld layer, at least one connecting hole is offered on first connector, insert the connecting hole and riveted with the first connector in one end of second connector, second connector is electrically connected with the battery core pole of lithium battery to be connected, the weld layer is provided between the other end of the second connector and first connector, the first connector is electrically connected with the lead-out terminal of lithium battery to be connected.The electrical connection module of the lithium battery that the present invention is provided, can not only meet the assembling demand of lithium battery, and can ensure the overcurrent capability of electrical connection module, while it is high to produce yields.
Description
Technical field
The present invention relates to the technical field of lithium battery accessory, more particularly to a kind of electrical connection module of lithium battery.
Background technology
At present in new energy lithium battery industry, generally require multiple lithium batteries by after connection in series-parallel, constituting module to make
With.Lithium battery pole is generally aluminium aluminium material (both positive and negative polarity material is all aluminium)；The battery core of lithium battery module internal is being gone here and there simultaneously
During connection, typically it is attached using aluminium flake, because aluminium flake is same material with battery core pole, it is easy to weld.And in lithium battery
When module is packaged, the connection between module and module or module and output port is general to export copper using bolt lock
Piece, because module output stage can collect larger electric current, aluminium flake overcurrent capability is limited.And exporting copper sheet needs and battery core aluminium pole
Post is welded, and manufacturability of the copper sheet directly with the aluminium pole laser welding of battery core is poor, is typically necessary the electricity for setting the switching of copper aluminium
Connection sheet, copper sheet is used for the connection (fast to insert or lock bolt) of membrane module, and aluminium flake is used to be connected (laser welding) with battery core pole, because
This, the electric connecting sheet of module output stage needs to do the switching of copper aluminium.Copper aluminium switching of the prior art is general to use moment of torsion ultrasonic wave
Welding, but welding product out easily has crackle, and yields is not high.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of can meet assembling demand and yields lithium battery high
Electrical connection module.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of electrical connection module of lithium battery, including the first connector, the second connector and weld layer, first connection
Offer at least one connecting hole on part, one end of second connector insert the connecting hole and with the first connector riveting
Connect, the second connector is electrically connected with the battery core pole of lithium battery to be connected, the other end of the second connector connects with described first
The weld layer is provided between fitting, the first connector is electrically connected with the lead-out terminal of lithium battery to be connected.
The beneficial effects of the present invention are：First connector is electrically connected with the lead-out terminal of lithium battery, the second connector with
The battery core pole electrical connection of lithium battery, the first connector can select the material for being easy to electrically connect with the lead-out terminal of lithium battery, the
Two connectors can select the material for being easy to electrically connect with the battery core pole of lithium battery, and the dress of lithium battery can be met by above-mentioned setting
With demand；Second connector is connected with the first connector by riveting and weld layer, can not only ensure the excessively electric of electrical connection module
Stream ability, and production yields is high.
Brief description of the drawings
Fig. 1 is the top view of the electrical connection module of the lithium battery of the embodiment of the present invention；
Fig. 2 is the front view of the electrical connection module of the lithium battery of the embodiment of the present invention；
Fig. 3 is the side view of the electrical connection module of the lithium battery of the embodiment of the present invention；
Fig. 4 is the front view of the second connector of the electrical connection module of the lithium battery of the embodiment of the present invention.
Label declaration：
1st, the first connector；11st, connecting hole；12nd, the first connection sheet；13rd, the second connection sheet；14th, connecting portion；2nd, second connects
Fitting；21st, bar portion；22nd, head；23rd, it is raised；24th, depressed part.
Specific embodiment
It is to describe technology contents of the invention, the objects and the effects in detail, below in conjunction with implementation method and coordinates attached
Figure is explained in detail.
The design of most critical of the present invention is：The first different connector of material is first riveted with the second connector and welded again,
Assembling demand can not only be met, and production yields is high.
Refer to Fig. 1 to Fig. 4, a kind of electrical connection module of lithium battery, including the first connector 1, the second connector 2 and weldering
Layer is connect, at least one connecting hole 11 is offered on first connector 1, one end insertion of second connector 2 is described
Connecting hole 11 is simultaneously riveted with the first connector 1, and the second connector 2 is electrically connected with the battery core pole of lithium battery to be connected, and second
The weld layer, the first connector 1 and lithium electricity to be connected are provided between the other end of connector 2 and first connector 1
The lead-out terminal electrical connection in pond.
Knowable to foregoing description, the beneficial effects of the present invention are：First connector is electrically connected with the lead-out terminal of lithium battery
Connect, the second connector is electrically connected with the battery core pole of lithium battery, and the first connector can select the lead-out terminal being easy to lithium battery
The material of electrical connection, the second connector can select the material for being easy to electrically connect with the battery core pole of lithium battery, by above-mentioned setting
The assembling demand of lithium battery can be met；Second connector is connected with the first connector by riveting and weld layer, can not only be ensured
The overcurrent capability of electrical connection module, and production yields is high.
Further, second connector 2 includes bar portion 21 and head 22, one end of the bar portion 21 and the head
22 connections, one end that the bar portion 21 is connected with the head 22 is provided with extend radially outwardly raised 23 along bar portion 21,
The bar portion 21 is arranged in the connecting hole 11, in raised 23 press-in first connector 1, the head 22 and institute
The first connector 1 is stated to weld.
Further, described raised 23 is zigzag, and raised 23 are set around the bar portion 21.
Further, the bar portion 21 is provided with depressed part 24, and the depressed part 24 is arranged on described raised 23 away from institute
State the side of head 22 and set near described raised 23.
Seen from the above description zigzag, on the second connector is raised and depressed part is riveted structure, by zigzag
Raised and depressed part realizes the riveting that the first connector is connected with second.
Further, first connector 1 includes the first connection sheet 12 and the second connection sheet 13, first connection sheet
12 are connected with the second connection sheet 13, and the junction of the first connection sheet 12 and the second connection sheet 13 is hierarchic structure, and described second connects
Contact pin 13 is provided with the connecting hole 11.
Seen from the above description, the second connection sheet can select the number of openings according to the connection in series-parallel demand of module, generally
1-5, while the second connector with respective amount.
Further, the quantity of second connection sheet 13 is two or more, more than two second connection sheets 13
Between be respectively equipped with connecting portion 14, the connecting portion 14 is domes.
Seen from the above description, the connecting portion of domes is set between the second connection sheet, conveniently adjustment second can be connected
The height of piece, to facilitate the connection of the first connector and lithium battery module, the quantity fewer than the quantity of connecting hole one of domes
It is individual.
Further, the surface of first connection sheet 12 is provided with coating.
Further, the material of the coating is gold, silver, nickel or tin.
Seen from the above description, the first connection sheet is used to be connected with the lead-out terminal of lithium battery, the surface of the first connection sheet
Coating is set, the conductive capability of the first connection sheet can be improved.
Further, first connector 1 includes more than two Copper Foils, and more than two Copper Foil stackings set
Put.
Seen from the above description, the first connector can be by multi-layered thickness for the Copper Foil stacking of 0.1-0.5mm is hot by molecule
Companding dissipates and is welded, or is directly stamped to form with T2 copper plates.
Further, the material of first connector 1 is red copper, and the material of second connector 2 is aluminium alloy.
Seen from the above description, the material of the first connector is copper, can facilitate and is electrically connected with lead-out terminal, such as fast to insert
Structure or lock bolt, and electrochemical corrosion will not occur with lead-out terminal, the material of the second connector is aluminium, can be facilitated and electricity
Core pole is welded.
Fig. 1 to Fig. 4 is refer to, embodiments of the invention one are：
A kind of electrical connection module of lithium battery, including the first connector 1, the second connector 2 and weld layer, described first connects
The material of fitting 1 is copper, preferably T2 red coppers, and the material of second connector 2 is aluminium alloy, such as 5005-H38 aluminium alloys,
It has good electric conductivity and intensity higher.First connector 1 includes the first connection sheet 12 and the second connection sheet 13,
First connection sheet 12 is connected with the second connection sheet 13, and the junction of the first connection sheet 12 and the second connection sheet 13 is ladder knot
Structure, second connection sheet 13 is provided with connecting hole 11.The surface of the first connection sheet 12 is provided with coating, and the material of coating is
Gold, silver, nickel or tin.First connection sheet 12 is used to be electrically connected with the lead-out terminal of lithium battery.The quantity of second connection sheet 13
It is two or more, connecting portion 14 is respectively equipped between more than two second connection sheets 13, the connecting portion 14 is arch
Structure.First connector 1 can directly use T2 red copper punch formings, it is also possible to by the T2 Copper Foils that multi-layered thickness is 0.1-0.5mm
It is welded by molecule Hot pressing diffusion.
Second connector 2 is riveted in connecting hole 11, and the second connector 2 is coaxially disposed with connecting hole 11.Second connector 2
Including bar portion 21 and head 22, one end of bar portion 21 is connected with head 22, and the other end of bar portion 21 inserts connecting hole 11 and and lithium
The battery core pole electrical connection of battery, bar portion 21 and one end that head 22 is connected be provided with along bar portion 21 extend radially outwardly it is convex
It is zigzag to play 23, described raised 23, and raised 23 are set around bar portion 21.Bar portion 21 is provided with depressed part 24, and depressed part 24 sets
Put in described raised 23 sides away from head 22 and close raised 23 setting.Bar portion 21 is arranged in connecting hole 11, and raised 23
It is pressed into first connector 1, head 22 is round pie, is provided with weld layer between the connector 1 of head 22 and first, and pass through
Weld layer laser welding and link together.Second connector 2 can be formed using the technique productions such as machining or forging and stamping.
In sum, the electrical connection module of the lithium battery that the present invention is provided, can not only meet the assembling demand of lithium battery, and
And the overcurrent capability of electrical connection module can be ensured, while it is high to produce yields.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or the technical field of correlation is directly or indirectly used in, similarly include
In scope of patent protection of the invention.
Claims (10)
1. a kind of electrical connection module of lithium battery, it is characterised in that including the first connector, the second connector and weld layer, institute
State the connecting hole that at least one is offered on the first connector, the connecting hole is inserted and with the in one end of second connector
A connection piece is riveted, and the second connector electrically connect with the battery core pole of lithium battery to be connected, the other end of the second connector and
The weld layer is provided between first connector, the first connector is electrically connected with the lead-out terminal of lithium battery to be connected.
2. the electrical connection module of lithium battery according to claim 1, it is characterised in that second connector includes bar portion
And head, one end of the bar portion is connected with the head, and one end that the bar portion is connected with the head is provided with along bar portion
The projection for extending radially outwardly, the bar portion is arranged in the connecting hole, in raised press-in first connector,
The head is welded with first connector.
3. the electrical connection module of lithium battery according to claim 2, it is characterised in that it is described it is raised be zigzag, it is raised
Set around the bar portion.
4. the electrical connection module of lithium battery according to claim 2, it is characterised in that the bar portion is provided with depressed part,
The depressed part is arranged on the projection away from the side of the head and near the raised setting.
5. the electrical connection module of lithium battery according to claim 1, it is characterised in that first connector includes first
Connection sheet and the second connection sheet, first connection sheet are connected with the second connection sheet, the company of the first connection sheet and the second connection sheet
Place is met for hierarchic structure, second connection sheet is provided with the connecting hole.
6. the electrical connection module of lithium battery according to claim 5, it is characterised in that the quantity of second connection sheet is
Two or more, is respectively equipped with connecting portion between more than two second connection sheets, the connecting portion is domes.
7. the electrical connection module of lithium battery according to claim 5, it is characterised in that the surface of first connection sheet sets
It is equipped with coating.
8. the electrical connection module of lithium battery according to claim 7, it is characterised in that the material of the coating be gold, silver,
Nickel or tin.
9. the electrical connection module of lithium battery according to claim 1, it is characterised in that first connector includes two
Copper Foil above, more than two Copper Foils are stacked.
10. the electrical connection module of lithium battery according to claim 1, it is characterised in that the material of first connector
It is red copper, the material of second connector is aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144067.8A CN106784562B (en) | 2016-12-13 | 2016-12-13 | Electric connection assembly of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144067.8A CN106784562B (en) | 2016-12-13 | 2016-12-13 | Electric connection assembly of lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106784562A true CN106784562A (en) | 2017-05-31 |
| CN106784562B CN106784562B (en) | 2023-01-06 |
Family
ID=58876320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611144067.8A Active CN106784562B (en) | 2016-12-13 | 2016-12-13 | Electric connection assembly of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106784562B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767184A (en) * | 2018-06-14 | 2018-11-06 | 湖南湖大艾盛汽车技术开发有限公司 | The connection structure in groups of efficient stable between a kind of power battery module |
| CN111326700A (en) * | 2019-12-26 | 2020-06-23 | 湖北锂诺新能源科技有限公司 | Electric connection structure between module electric cores |
| WO2021203691A1 (en) * | 2020-04-10 | 2021-10-14 | 赤壁银轮工业换热器有限公司 | Copper bar assembly, battery module. and copper bar assembly connection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767184A (en) * | 2018-06-14 | 2018-11-06 | 湖南湖大艾盛汽车技术开发有限公司 | The connection structure in groups of efficient stable between a kind of power battery module |
| CN111326700A (en) * | 2019-12-26 | 2020-06-23 | 湖北锂诺新能源科技有限公司 | Electric connection structure between module electric cores |
| WO2021203691A1 (en) * | 2020-04-10 | 2021-10-14 | 赤壁银轮工业换热器有限公司 | Copper bar assembly, battery module. and copper bar assembly connection method |
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| Publication number | Publication date |
|---|---|
| CN106784562B (en) | 2023-01-06 |
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