CN207398194U - A kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure - Google Patents
A kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure Download PDFInfo
- Publication number
- CN207398194U CN207398194U CN201721351643.6U CN201721351643U CN207398194U CN 207398194 U CN207398194 U CN 207398194U CN 201721351643 U CN201721351643 U CN 201721351643U CN 207398194 U CN207398194 U CN 207398194U
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- China
- Prior art keywords
- cover board
- end plate
- positive terminal
- hole
- terminal end
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a kind of power lithium-ion battery cover board positive end plate laser welding through-hole structures, it includes cover board, cover plate through hole and positive terminal end plate, cover board is welded on battery case, cover plate through hole is square or circular, cover plate through hole is set on the cover board, is the engraved structure on cover board, and positive terminal end plate is arranged in cover plate through hole, and be connected with cover board by laser seal welding, the back side junction of cover board and positive terminal end plate is equipped with a circle laser seal welding seam.The advantages of the utility model：Forming through holes and with mold positive terminal end plate is molded on the cover board with mold, positive terminal end plate and cover board are assembled, carry out laser welding from cover board reverse side by cover board and positive terminal end plate surrounding, processing technology is simple, without plastic seal, reduce excessively connection, internal resistance is small, is suitble to high current charge-discharge；Cover board is equal with the current potential of anode, can also reduce internal resistance；It is simple in structure, reduce cost；Cover board uses the closed welding of laser with positive terminal end plate, and airtight performance is good.
Description
Technical field
The utility model is related to a kind of power lithium-ion battery cover board positive end plate laser welding through-hole structures, belong to lithium electricity
Pool technology field.
Background technology
Lithium battery is widely used in the accumulation power supplies system such as waterpower, firepower, wind-force and solar power station, and post and telecommunications are not
Uninterruptible power and electric tool, electric bicycle, battery-operated motor cycle, electric vehicle, military equipment, aerospace etc. are multiple
Field.Lithium ion battery is obtained in portable electronics such as laptop computer, video camera, mobile communication with its distinctive performance advantage
To commonly used.The high capacity lithium ion battery of exploitation incites somebody to action one of major impetus power supply as 21 century electric vehicle
It is applied in terms of artificial satellite, aerospace and energy storage.With the pressure of the environmental protection aspect in the in short supply and world of the energy, lithium
Electricity is widely used in electric car industry.
Current most common anode rod structure lead-out mode has：Cap punching adds plastic seal screw nut pair
Lock is drawn, and cap punching is drawn with the punching press of plastic seal pressure sheet rivet, and structure is cumbersome, the more assembling of parts is complicated,
Plastic seal is being easy to aging by pressure time length and followed the string long afterwards, the easy rotation not up to standard of pole torsion, battery core
Run into the severe situation of operating mode in use causes leakage by shaking screw and easily loosening, and battery performance declines and exists
Security risk, contact resistance is difficult to control, and positive terminal position temperature rises higher during charge and discharge, influences battery DC internal resistance, causes battery
Charge and discharge consistency performance is poor, and existing deriving structure is required to plastic seal and is sealed, and adds processing technology hardly possible
While spending, cost is also improved, and existing deriving structure is complicated, situation about excessively connecting often occurs, not only
Internal resistance is improved, causes battery charging and discharging poor, and adds cost.
Utility model content
The technical problems to be solved in the utility model, be to provide a kind of processing technology it is simple, without plastic seal, subtract
Few excessively connection, internal resistance is small, is suitble to the power lithium-ion battery cover board positive end plate laser welding through hole knot of high current charge-discharge
Structure.
The utility model is realized by following proposal：A kind of power lithium-ion battery cover board positive end plate laser welding through hole
Structure, including cover board, cover plate through hole and positive terminal end plate, the cover board is welded on battery case, and the cover plate through hole is side
Shape or circle, the cover plate through hole are arranged on the cover board, for the engraved structure on the cover board, the positive terminal end plate
It is arranged in the cover plate through hole, and is connected with the cover board by laser seal welding, the cover board and the anode styletable
The back side junction of plate is equipped with a circle laser seal welding seam.
The cover board is equal with the current potential of anode.
The positive terminal end plate is identical with the shape of the cover plate through hole, is square or circular.
The positive terminal end plate is identical with the length and width or diameter of the cover plate through hole.
The cover board is welded into sealing structure with the positive terminal end plate.
Plane where plane where the lower end of the positive terminal end plate and the cover board lower end is at grade.
The beneficial effects of the utility model are：
1st, a kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure of the utility model, is being covered with mold
Forming through holes and positive terminal end plate is molded with mold on plate, positive terminal end plate and cover board are assembled, from cover board reverse side by cover board
Carry out laser welding with positive terminal end plate surrounding, processing technology is simple, without plastic seal, reduce excessively connection, internal resistance it is small,
It is suitble to high current charge-discharge；
2nd, a kind of cover board of power lithium-ion battery cover board positive end plate laser welding through-hole structure of the utility model and electricity
The current potential of pond anode is equal, can also reduce internal resistance；
3rd, a kind of structure of power lithium-ion battery cover board positive end plate laser welding through-hole structure of the utility model it is simple,
Reduce cost；
4th, a kind of cover board of power lithium-ion battery cover board positive end plate laser welding through-hole structure of the utility model with just
Pole end plate uses the closed welding of laser, and airtight performance is preferable, is not in the situation of leakage, and battery performance is stablized, security
It can be good；
5th, a kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure of the utility model, can keep just
The thickness of pole end plate is constant, and during laser seal welding, laser will not penetrate positive terminal end plate, and when battery assembles, string
When connection sheet passes through laser welding when in parallel, positive terminal end plate will not be penetrated.
Description of the drawings
Fig. 1 is a kind of embodiment of power lithium-ion battery cover board positive end plate laser welding through-hole structure of the utility model
1 faces cross-sectional view.
Fig. 2 is a kind of embodiment of power lithium-ion battery cover board positive end plate laser welding through-hole structure of the utility model
1 overlooking the structure diagram.
Fig. 3 is a kind of embodiment of power lithium-ion battery cover board positive end plate laser welding through-hole structure of the utility model
2 face cross-sectional view.
Fig. 4 is a kind of embodiment of power lithium-ion battery cover board positive end plate laser welding through-hole structure of the utility model
2 overlooking the structure diagrams.
In figure：1 is cover board, and 2 be cover plate through hole, and 3 be positive terminal end plate, and 4 stitch for laser seal welding.
Specific embodiment
It is further illustrated with reference to Fig. 1-4 pairs of the utility model, but scope of protection of the utility model is not limited in described
Hold.
Wherein identical parts are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, and word " interior " and " outer " refer respectively to court
To or away from particular elements geometric centers direction, and attached drawing uses using very simplified form and non-accurate ratio
Rate, only to purpose that is convenient, lucidly aiding in illustrating the utility model embodiment.
For clarity, not describing whole features of practical embodiments, in the following description, well known function is not described in detail
And structure, because they can make the utility model chaotic due to unnecessary details, it will be understood that in any practical embodiments
Exploitation in, it is necessary to make a large amount of implementation details to realize the specific objective of developer, such as according to related system or related business
The limitation of industry changes into another embodiment by one embodiment, additionally, it should think this development may be it is complicated and
It is time-consuming, but it is only to those skilled in the art routine work.
Embodiment 1：A kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure, including cover board 1, lid
Plate through hole 2 and positive terminal end plate 3, cover board 1 are welded on battery case, and cover plate through hole 2 is square, and cover plate through hole 2 is arranged on cover board 1
On, it is the engraved structure on cover board 1, positive terminal end plate 3 is arranged in cover plate through hole 2, and passes through laser seal welding with cover board 1
The back side junction of connection, cover board 1 and positive terminal end plate 3 is equipped with a circle laser seal welding seam 4.
Cover board 1 is equal with the current potential of anode.
Positive terminal end plate 3 is identical with the shape of cover plate through hole 2, is square.
Positive terminal end plate 3 is identical with the length and width of cover plate through hole 2.
Cover board 1 is welded into sealing structure with positive terminal end plate 3.
Plane where plane where the lower end of positive terminal end plate 3 and 1 lower end of cover board is at grade.
The processing technology of the utility model is as follows：The first step：Cover plate through hole is molded with mold；Second step：It will with mold
Positive terminal end plate is molded, the 3rd step：Cover board and the assembling of positive terminal end plate；4th step：From cover board reverse side by cover board and positive end plate
Surrounding carries out laser welding.
Embodiment 2：A kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure, including cover board 1, lid
Plate through hole 2 and positive terminal end plate 3, cover board 1 are welded on battery case, and cover plate through hole 2 is circle, and cover plate through hole 2 is arranged on cover board 1
On, it is the engraved structure on cover board 1, positive terminal end plate 3 is arranged in cover plate through hole 2, and passes through laser seal welding with cover board 1
The back side junction of connection, cover board 1 and positive terminal end plate 3 is equipped with a circle laser seal welding seam 4.
Cover board 1 is equal with the current potential of anode.
Positive terminal end plate 3 is identical with the shape of cover plate through hole 2, for circle.
Positive terminal end plate 3 is identical with the diameter of cover plate through hole 2.
Cover board 1 is welded into sealing structure with positive terminal end plate 3.
Plane where plane where the lower end of positive terminal end plate 3 and 1 lower end of cover board is at grade.
The processing technology of the utility model is as follows：The first step：Cover plate through hole is molded with mold；Second step：It will with mold
Positive terminal end plate is molded, the 3rd step：Cover board and the assembling of positive terminal end plate；4th step：From cover board reverse side by cover board and positive end plate
Surrounding carries out laser welding.
Although more detailed elaboration is done to the technical solution of the utility model and has been enumerated, it should be understood that for
For those skilled in the art, modification is made to above-described embodiment or uses equivalent alternative solution, this skill to this field
Be for art personnel it is clear that on the basis of without departing from the utility model spirit these modifications or improvements, belong to
In the scope of the requires of the utility model protection.
Claims (6)
1. a kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure, it is characterised in that：It includes cover board
（1）, cover plate through hole（2）With positive terminal end plate（3）, the cover board（1）It is welded on battery case, the cover plate through hole（2）For side
Shape or circle, the cover plate through hole（2）It is arranged on the cover board（1）On, it is the cover board（1）On engraved structure, it is described
Positive terminal end plate（3）It is arranged on the cover plate through hole（2）It is interior, and with the cover board（1）It is connected by laser seal welding, it is described
Cover board（1）With the positive terminal end plate（3）Back side junction be equipped with one circle laser seal welding seam（4）.
2. a kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure according to claim 1, special
Sign is：The cover board（1）It is equal with the current potential of anode.
3. a kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure according to claim 1, special
Sign is：The positive terminal end plate（3）With the cover plate through hole（2）Shape it is identical, to be square or circular.
4. a kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure according to claim 3, special
Sign is：The positive terminal end plate（3）With the cover plate through hole（2）Length and width or diameter it is identical.
5. a kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure according to claim 1, special
Sign is：The cover board（1）With the positive terminal end plate（3）It is welded into sealing structure.
6. a kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure according to claim 1, special
Sign is：The positive terminal end plate（3）Lower end where plane and the cover board（1）Plane where lower end is at grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351643.6U CN207398194U (en) | 2017-10-19 | 2017-10-19 | A kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351643.6U CN207398194U (en) | 2017-10-19 | 2017-10-19 | A kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207398194U true CN207398194U (en) | 2018-05-22 |
Family
ID=62328991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721351643.6U Active CN207398194U (en) | 2017-10-19 | 2017-10-19 | A kind of power lithium-ion battery cover board positive end plate laser welding through-hole structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207398194U (en) |
-
2017
- 2017-10-19 CN CN201721351643.6U patent/CN207398194U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Power lithium ion battery laps anodal end plate laser welding through -hole structure Effective date of registration: 20190318 Granted publication date: 20180522 Pledgee: Jiangxi State-owned Venture Capital Management Co.,Ltd. Pledgor: JIANGXI HD NEW ENERGY CO.,LTD. Registration number: 2019360000011 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191203 Granted publication date: 20180522 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221203 Granted publication date: 20180522 |