CN203721786U - Anti-explosion cover plate for power lithium ion battery - Google Patents
Anti-explosion cover plate for power lithium ion battery Download PDFInfo
- Publication number
- CN203721786U CN203721786U CN201420009461.0U CN201420009461U CN203721786U CN 203721786 U CN203721786 U CN 203721786U CN 201420009461 U CN201420009461 U CN 201420009461U CN 203721786 U CN203721786 U CN 203721786U
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- Prior art keywords
- explosion
- cover plate
- negative pole
- anodal
- leader
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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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses an anti-explosion cover plate for a power lithium ion battery. The anti-explosion cover plate comprises a cover plate body, a positive base, a negative base, a positive lead piece, a negative lead piece, positive rivets, negative rivets, an anti-explosion membrane and an anti-explosion cover, wherein the positive base and the positive lead piece are arranged at the left ends of the front and back sides of the cover plate body through the two positive rivets; the negative base and the negative lead piece are arranged at the right ends of the front and back sides of the cover plate body through the two negative rivets; the anti-explosion membrane is concavely arranged in the middle of the cover plate body; the anti-explosion cover is arranged on the anti-explosion membrane and is protruded out of the front side of the cover plate body. In such a way, the anti-explosion cover plate for the power lithium ion battery, disclosed by the utility model, has the advantages that the anti-explosion membrane is concavely arranged in the middle of the cover plate body, so that the pressure for switching on a valve is reduced, and the anti-explosion sensitivity for instantly opening the valve is increased; in addition, when the anti-explosion membrane flies out, the anti-explosion cover can be used for preventing the anti-explosion membrane from being ejected to the outside, so that the battery cover plate has a favorable anti-explosion effect.
Description
Technical field
The utility model relates to the field of battery, particularly relates to a kind of anti-explosion cover plate of power lithium ion.
Background technology
Power lithium-ion battery is the power supply that power resources are provided, and refers to provide for electric automobile, electric train, electric bicycle, golf cart the storage battery of power more.Electrokinetic cell generally adopts aluminum hull encapsulation, has that volume is little, lightweight, electric weight is strong, a feature such as memoryless and environmental protection, is widely used at present.
Because power lithium-ion battery is hermetically-sealed construction after battery cover board and aluminum hull welding, in the time that battery is short-circuited, air pressure inside can increase rapidly, and the danger of battery explosion easily occurs.Prior art is used the explosive-proof protector of explosion-proof line as battery mostly, and explosion-proof performance is difficult to ensure.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of anti-explosion cover plate of power lithium ion, rupture pressure disc is arranged with the centre position in cover board body, cracking pressure is reduced, improve the explosion-proof sensitivity that moment drives valve, when rupture pressure disc flies out, anti-explosion cover can avoid rupture pressure disc to launch to outside, makes its battery cover board reach good explosion-proof effect.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of anti-explosion cover plate of power lithium ion is provided, comprise cover board body, anodal base, negative pole base, anodal leader, negative pole leader, anodal rivet, negative pole rivet, rupture pressure disc and anti-explosion cover, described anodal base and anodal leader are arranged on cover board body tow sides left end by two anodal rivets, described negative pole base and negative pole leader are arranged on positive and negative two right-hand members of cover board body by two negative pole rivets, described rupture pressure disc is arranged with the centre position at cover board body, described anti-explosion cover is arranged at rupture pressure disc top and protrudes from the front of cover board body.
In preferred embodiment of the utility model, between described anodal base, negative pole base, anodal leader and negative pole leader and cover board body, be also provided with the first seal washer, the second seal washer, the 3rd seal washer and the 4th seal washer.
In preferred embodiment of the utility model, described to be arranged on the first seal washer between anodal base and negative pole base and cover board body and the shape of the second seal washer and the shape of anodal base and negative pole base corresponding, ovalize.
In preferred embodiment of the utility model, the described rectangle that is shaped as that is arranged on the 3rd seal washer between anodal leader and negative pole leader and cover board body and the 4th seal washer.
In preferred embodiment of the utility model, the material of described anodal base is red copper; The material of described negative pole base is red copper nickel plating.
In preferred embodiment of the utility model, the material of described anodal leader is fine aluminium; The material of described negative pole leader is red copper nickel plating.
In preferred embodiment of the utility model, described anodal leader thickness is 0.3mm; The thickness of described negative pole leader is 0.25mm.
In preferred embodiment of the utility model, described anodal leader and one end of negative pole leader protrude from a side of cover board body.
In preferred embodiment of the utility model, the material of described cover board body is aluminium, and its thickness is 1.5mm.
In preferred embodiment of the utility model, on described anti-explosion cover, be provided with three steam vents.
The beneficial effects of the utility model are: anti-explosion cover plate of power lithium ion of the present utility model, rupture pressure disc is arranged with the centre position in cover board body, cracking pressure is reduced, improve the explosion-proof sensitivity that moment drives valve, when rupture pressure disc flies out, anti-explosion cover can avoid rupture pressure disc to launch to outside, makes its battery cover board reach good explosion-proof effect.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the side structure schematic diagram of anti-explosion cover plate of power lithium ion one preferred embodiment of the present utility model;
Fig. 2 is the front schematic view of Fig. 1;
Fig. 3 is the reverse side structural representation of Fig. 1;
Being labeled as in accompanying drawing: 1, cover board body, 2 anodal bases, 3, negative pole base, 4, anodal leader, 5, negative pole leader, 6, anodal rivet, 7, negative pole rivet, 8, rupture pressure disc, 9, anti-explosion cover, 10, the first seal washer, 11, the second seal washer, 12, the 3rd seal washer, 13, the 4th seal washer.
Embodiment
To the technical scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, Fig. 2 and Fig. 3, the utility model embodiment comprises:
A kind of anti-explosion cover plate of power lithium ion, comprise cover board body 1, anodal base 2, negative pole base 3, anodal leader 4, negative pole leader 5, anodal rivet 6, negative pole rivet 7, rupture pressure disc 8 and anti-explosion cover 9, described anodal base 2 and anodal leader 4 are arranged on cover board body 1 tow sides left end by two anodal rivets 6, described negative pole base 3 and negative pole leader 5 are contained in anti-two right-hand members of cover board body 1 by two negative pole rivets 7, described rupture pressure disc 8 is arranged with in cover board body 1 centre position, described anti-explosion cover 9 is arranged at rupture pressure disc 8 tops and protrudes from the front of cover board body 1.
In above-mentioned, between described anodal base 2, negative pole base 3, anodal leader 4 and negative pole leader 5 and cover board body 1, be also provided with the first seal washer 10, the second seal washer 11, the 3rd seal washer 12 and the 4th seal washer 13.
Wherein, described to be arranged on the first seal washer 10 between anodal base 2 and negative pole base 3 and cover board body 1 and the shape of the second seal washer 11 and the shape of anodal base 2 and negative pole base 3 corresponding, ovalize; The described rectangle that is shaped as that is arranged on the 3rd seal washer 12 between anodal leader 4 and negative pole leader 5 and cover board body 1 and the 4th seal washer 13.
Wherein, the material of described the first seal washer 21, the second seal washer 22, the 3rd seal washer 23 and the 4th seal washer 24 is PFA, and its thickness is 0.2-0.8mm, through injection mo(u)lding, there is good sealing property, there is good sealing property, reliability, good stability.
Further, the material of described anodal base 2 is red copper, and the material of described negative pole base 3 is red copper nickel plating; The material of described anodal leader 4 is fine aluminium; The material of described negative pole leader 5 is red copper nickel plating.One end of anodal leader 4 described in the utility model and negative pole leader 5 protrudes from a side of cover board body 1.Wherein, described anodal leader 7 thickness are 0.3mm; The thickness of described negative pole leader 8 is 0.25mm.Described anodal leader 4 and negative pole leader 5 require annealing in process, and its hardness is for being less than 90HV.
Further, the centre position of described cover board body 1 is concaved with rupture pressure disc 8, and the top of described rupture pressure disc 8 also arranges an anti-explosion cover 9, and described anti-explosion cover 9 protrudes from the front of cover board body 1.Wherein, the pure aluminum foil that described rupture pressure disc 8 is circular configuration, its thickness is 0.5mm; On described anti-explosion cover 9, be provided with three steam vents, make its outside explosion-proof valve scale fracture pressure be controlled at 0.6 ± 0.2Mpa.
The material of the cover board body 1 described in the utility model is aluminium, and its thickness is 1.5mm, smooth, without burr, crackle with without greasy dirt.
Anti-explosion cover plate of power lithium ion of the present utility model, rupture pressure disc 8 is arranged with in the centre position of cover board body 1, cracking pressure is reduced, improve the explosion-proof sensitivity that moment drives valve, when rupture pressure disc 8 flies out, anti-explosion cover 9 can avoid rupture pressure disc 8 to launch to outside, makes its battery cover board reach good explosion-proof effect.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. an anti-explosion cover plate of power lithium ion, it is characterized in that, comprise cover board body, anodal base, negative pole base, anodal leader, negative pole leader, anodal rivet, negative pole rivet, rupture pressure disc and anti-explosion cover, described anodal base and anodal leader are arranged on cover board body tow sides left end by two anodal rivets, described negative pole base and negative pole leader are arranged on positive and negative two right-hand members of cover board body by two negative pole rivets, described rupture pressure disc is arranged with the centre position at cover board body, described anti-explosion cover is arranged at rupture pressure disc top and protrudes from the front of cover board body.
2. anti-explosion cover plate of power lithium ion according to claim 1, it is characterized in that, between described anodal base, negative pole base, anodal leader and negative pole leader and cover board body, be also provided with the first seal washer, the second seal washer, the 3rd seal washer and the 4th seal washer.
3. anti-explosion cover plate of power lithium ion according to claim 2, it is characterized in that, described to be arranged on the first seal washer between anodal base and negative pole base and cover board body and the shape of the second seal washer and the shape of anodal base and negative pole base corresponding, ovalize.
4. anti-explosion cover plate of power lithium ion according to claim 2, is characterized in that, the described rectangle that is shaped as that is arranged on the 3rd seal washer between anodal leader and negative pole leader and cover board body and the 4th seal washer.
5. anti-explosion cover plate of power lithium ion according to claim 1, is characterized in that, the material of described anodal base is red copper; The material of described negative pole base is red copper nickel plating.
6. anti-explosion cover plate of power lithium ion according to claim 1, is characterized in that, the material of described anodal leader is fine aluminium; The material of described negative pole leader is red copper nickel plating.
7. anti-explosion cover plate of power lithium ion according to claim 1, is characterized in that, described anodal leader thickness is 0.3mm; The thickness of described negative pole leader is 0.25mm.
8. anti-explosion cover plate of power lithium ion according to claim 1, is characterized in that, described anodal leader and one end of negative pole leader protrude from a side of cover board body.
9. anti-explosion cover plate of power lithium ion according to claim 1, is characterized in that, the material of described cover board body is aluminium, and its thickness is 1.5mm.
10. anti-explosion cover plate of power lithium ion according to claim 1, is characterized in that, is provided with three steam vents on described anti-explosion cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009461.0U CN203721786U (en) | 2014-01-08 | 2014-01-08 | Anti-explosion cover plate for power lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009461.0U CN203721786U (en) | 2014-01-08 | 2014-01-08 | Anti-explosion cover plate for power lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721786U true CN203721786U (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420009461.0U Expired - Fee Related CN203721786U (en) | 2014-01-08 | 2014-01-08 | Anti-explosion cover plate for power lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721786U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870363A (en) * | 2016-04-28 | 2016-08-17 | 常熟高嘉能源科技有限公司 | Lithium battery cover plate |
| CN112864542A (en) * | 2019-11-27 | 2021-05-28 | 江苏海四达电源股份有限公司 | Pole structure and lithium ion battery |
| CN112864512A (en) * | 2019-11-27 | 2021-05-28 | 江苏海四达电源股份有限公司 | Lithium ion battery |
-
2014
- 2014-01-08 CN CN201420009461.0U patent/CN203721786U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870363A (en) * | 2016-04-28 | 2016-08-17 | 常熟高嘉能源科技有限公司 | Lithium battery cover plate |
| CN112864542A (en) * | 2019-11-27 | 2021-05-28 | 江苏海四达电源股份有限公司 | Pole structure and lithium ion battery |
| CN112864512A (en) * | 2019-11-27 | 2021-05-28 | 江苏海四达电源股份有限公司 | Lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20190108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |