CN201994354U - Integral type anti-explosion cover plate of power battery - Google Patents
Integral type anti-explosion cover plate of power battery Download PDFInfo
- Publication number
- CN201994354U CN201994354U CN2011201062986U CN201120106298U CN201994354U CN 201994354 U CN201994354 U CN 201994354U CN 2011201062986 U CN2011201062986 U CN 2011201062986U CN 201120106298 U CN201120106298 U CN 201120106298U CN 201994354 U CN201994354 U CN 201994354U
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- cover plate
- integral type
- power battery
- type power
- explosion protection
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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)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model relates to an integral type anti-explosion cover plate of a power battery. The integral-type anti-explosion cover plate comprises a battery cover plate, a pit is formed on the cover plate, an annular groove is arranged around the periphery of the pit, and a breakable groove is arranged on the annular groove. The integral type anti-explosion cover plate provided by the utility model is free from welding, has a self-explosion and anti-explosion technical effect under a design pressure, and endows the power battery with the advantages of better anti-explosion reliability, better anti-leakage effectiveness, lower cost and more environment-protection manufacture process, simple structure, convenience in use, and the like.
Description
Technical field
The utility model relates to a kind of automobile power cell cover plate, particularly a kind of integral type power battery explosion protection cover plate.
Background technology
As Fig. 7, shown in Figure 8, traditional integral type power battery explosion protection cover plate is to offer explosionproof hole A2 on battery cover board A1, and the burst disk A3 that connects by welded seal is set on explosionproof hole A2 then.When cell internal pressure was excessive, gas burst burst disk from the self-destruction line in advance, and avoids battery and battery pack to blast.
At present, the power battery explosion protection sheet generally adopts aluminium, stainless steel, titanium material etc., the thickness at the self-destruction line place of palpus Precision Machining burst disk is that 0.003～0.02 millimeter ability realizes explosion-proof effect, thus, the material of material and the stability of thickness is had extra high requirement.On the other hand, the mother metal of burst disk is thick more, and it is rolling that thickness is that 0.003～0.02 millimeter self-destruction line is difficult to, so the thickness universal demand of burst disk is at 0.1～0.2mm.Such thin slice extremely is easy to generate the defective products of a large amount of gas leakage and the mashed aspect of weldering in welding process.Particularly to realize the welding quality that it is good, need to drop into expensive burst disk welding equipment that this high investment and expensive meeting directly influence competitiveness of product; And the welding of burst disk also has pollution to environment, and operative employee's health is had infringement, causes the low production technology effect of the big production efficiency of energy resource consumption.Therefore, how to address the above problem, become problem demanding prompt solution.
The utility model content
The technical problems to be solved in the utility model provides a kind of integral type power battery explosion protection cover plate of exempting to weld, realization makes the electrokinetic cell cover plate realize self-destruction and explosion-proof technique effect in design pressure, tool is explosion-proof more reliable, leakproof is more effective, cost is cheaper, make more environmental protection, and advantage such as simple in structure, easy to use.
For solving the problems of the technologies described above, the utility model provides a kind of integral type power battery explosion protection cover plate, comprises battery cover board, and wherein: on the cover board be formed with pit, be provided with annular groove in the periphery of encircling pit, described annular groove is provided with easily broken groove.
Above-mentioned a kind of integral type power battery explosion protection cover plate, described pit is the hole body that is formed by die drawn.
Above-mentioned a kind of integral type power battery explosion protection cover plate, described annular groove are to roll the indent cell body that thin type becomes by mould.
Above-mentioned a kind of integral type power battery explosion protection cover plate, described easily broken groove are to roll the indent cell body that thin type becomes by mould.
Above-mentioned a kind of integral type power battery explosion protection cover plate, described pit is a concave inward structure, the disjunctor material deformable body that flow deformation generates in pit when headspace circularizes groove by rolling thin type for its oral area.
Above-mentioned a kind of integral type power battery explosion protection cover plate, the thickness at the annular groove place of described cover plate is 0.1～0.2 millimeter, the thickness of described easily broken groove is between 0.003～0.02 millimeter.
Above-mentioned a kind of integral type power battery explosion protection cover plate, described cover plate are aluminium or stainless steel or PTFE or PFA.
After the utility model adopts said structure, simple in structure and make its technology more ripe by burst disk structure and cover plate is directly integrally formed, produce more efficiently, reach the technique effect that does not have leakage fully.Add man-hour,, reserve the room of nearest and minimum obstruction for the material lateral flow directly with the stretched pit of cover plate.Ring pit periphery adopts and rolls thin technology formation precompressed annular groove, in the process that forms the precompressed annular groove, the disjunctor material is easy to just can be out of shape to the pit lateral flow, thereby precompressed annular groove diapire is rolled be as thin as 0.1～0.2 millimeter design thickness more like a cork, need special punch press energetically and be unlikely, and avoid producing the hardened material phenomenon.Again according to specific requirement, further rolling out thickness at precompressed annular groove 13 diapires is 0.003～0.02 millimeter easily broken groove (self-destruction line).Burst disk structure and covering plate structure are combined into integral body, and it is simple in structure, the craft precision height, and the production efficiency height especially aspect leakproof, occupies incomparable advantage; Aspect explosion-proof, because the influence of thermal deformation and clamping deformation when not welding, so the state when it detects is consistent with final effect, rather than as independent burst disk, comes out to from its punching out and to be welded into assembly, all multivariates are arranged.The utility model realizes that gas bursts burst disk from easily broken groove (self-destruction line) in advance, and avoids battery and battery pack to blast when cell internal pressure is excessive.
The further improvement project of the utility model:
Also comprise protective cover up and down, be provided with projection at upper and lower plates face along all battery cover boards in the groove outside; Establish penetrating hole on the described protective cover, periphery is provided with location hole, protective cover is riveted on the battery cover board by location hole and projection are corresponding one by one.
After the utility model adopts above-mentioned improvement structure,, avoided damage blast resistance construction in production, installation and the use, thereby played a protective role by protective cover being set the side respectively up and down at the pairing cover plate of blast resistance construction.Wherein protective cover is provided with location hole by encircling its periphery, with the corresponding one by one riveted joint of the projection on the cover plate, has the technique effect that processing technology is simple, be connected firmly.
The advantage that the utility model is compared with prior art had:
1. burst disk and cover plate make integral type, and be simple in structure, can accomplish fully not have to leak.
2. burst disk and cover plate make integral type, and all diel is finished, and need not other equipment input, and technology is more ripe, produces more efficient.Avoided thin slice in welding process, very easily the appearance of the defective products of a large amount of gas leakage of Chan Shenging and the mashed aspect of weldering.
3. weld relatively, integral type more embodies pollution-free industry, and energy-conserving and environment-protective do not harm operating personnel.
4. aspect explosion-proof, because the influence of thermal deformation and clamping deformation when not welding, so the state when it detects is consistent with final effect, rather than as independent burst disk, comes out to from its punching out and to be welded into assembly, all multivariates are arranged.
5. by in the utility model, having imported the structure of pit 11, thereby the thickness that can easily realize making precompressed annular groove 13 diapires rolls and is as thin as 0.1～0.2 millimeter design thickness, promptly do not need special punch press energetically, the hardening phenomenon that the self-destruction line that also can not exert an influence generates.
Description of drawings
Below in conjunction with the specific embodiment in the accompanying drawing the utility model is described in further detail, but does not constitute any restriction of the present utility model.
Fig. 1 is the cross-sectional view of the utility model specific embodiments one;
Fig. 2 is the partial structurtes enlarged drawing of Fig. 1;
Fig. 3 is the vertical view structural representation of the utility model specific embodiments one;
Fig. 4 is the cross-sectional view of the utility model specific embodiments two;
Fig. 5 is the partial structurtes enlarged drawing of Fig. 4;
Fig. 6 is the vertical view structural representation of the utility model specific embodiments two;
Fig. 7 is the cross-sectional view of the utility model specific embodiments two cover plates;
Fig. 8 is the vertical view structural representation of the utility model specific embodiments two cover plates;
Fig. 9 is the structural representation of the vertical view of traditional embodiment cover plate;
Figure 10 is the structural representation of the side sectional view of traditional embodiment cover plate.
Among the figure: 1 is battery cover board, and 11 is pit, and 12 is annular groove, and 13 is easily broken groove, and 14 is projection, and 2 is protective cover, and 21 is penetrating hole, and 22 is location hole.
Embodiment
Extremely shown in Figure 2 as Fig. 1, a kind of integral type power battery explosion protection cover plate of one of the utility model specific embodiments comprises battery cover board 1, and stretching on cover plate 1 is formed with pit 11, periphery at ring pit 11 is provided with annular groove 12, and annular groove 12 is provided with easily broken groove 13.
Easily broken groove 13 is to roll the indent cell body that thin type becomes by mould.
The thickness at annular groove 12 places of cover plate 1 is 0.1～0.2 millimeter, and the thickness at easily broken groove 13 places is between 0.003～0.02 millimeter.
To shown in Figure 6, be two of specific embodiments of the present utility model as Fig. 3.On the blast resistance construction basis of one of specific embodiments, groove 12 right cover plate 1 top and bottom portion be provided with protective cover 2 respectively, in the projection 14 that is provided with outside protruding plate face along 12 outside weeks of groove; Establish penetrating hole 21 on the protective cover 2, periphery is provided with location hole 22, protective cover 2 by location hole 22 and the projection 14 corresponding one by one being riveted on the battery cover board 1; Cover plate 1 is aluminium or stainless steel or PTFE or PFA.
The utility model is specifically adding man-hour, directly from the stretched pit 11 of cover plate 1, it is room for realizing that the material lateral flow reserves, ring pit 12 peripheries adopt and roll thin technology formation precompressed annular groove 13, in the process that forms precompressed annular groove 13, the disjunctor material is easy to just can be out of shape to pit 11 lateral flow, thereby easily realization is rolled the diapire of precompressed annular groove 13 and is as thin as 0.1～0.2 millimeter design thickness, promptly do not need special punch press energetically, the hardening phenomenon that the self-destruction line that also can not exert an influence generates.Again according to specific requirement, the diapire of precompressed annular groove 13 rolled further to approach out thickness be 0.003～0.02 millimeter self-destruction line, realize that blast resistance construction 11 and cover plate 1 are the unitary whole structure.Protective cover 2 then is provided with location hole 22 by encircling its periphery, and in the corresponding one by one riveted and fixed of the alternate projection that shifts to install 14 of the upper and lower surface of cover plate 1.
The utility model has been made out actual sample and through repeatedly use test, from the effect of use test, the utility model can reach the purpose of expection shown in specification and diagramatic content, practical value is unquestionable.Above illustrated embodiment only is used for conveniently illustrating the utility model, be not that the utility model is done any pro forma restriction, have in the technical field under any and know the knowledgeable usually, if in the scope that does not break away from technical characterictic that the utility model provides, the equivalent embodiment that utilizes technology contents that the utility model discloses to do local change or modified, and do not break away from technical characterictic content of the present utility model, all still belong in the scope of the utility model technical characterictic.
Claims (8)
1. integral type power battery explosion protection cover plate, comprise battery cover board (1), it is characterized in that: be formed with pit (11) on cover plate (1), be provided with annular groove (12) in the periphery of encircling pit (11), described annular groove (12) is provided with easily broken groove (13).
2. a kind of integral type power battery explosion protection cover plate according to claim 1 is characterized in that: also comprise protective cover (2) up and down, be provided with projection (14) at the upper and lower plates face along all battery cover boards (1) in groove (12) outside; Establish penetrating hole (21) on the described protective cover (2), periphery is provided with location hole (22), (14) are corresponding one by one is riveted on the battery cover board (1) with projection by location hole (22) for protective cover (2).
3. a kind of integral type power battery explosion protection cover plate according to claim 1, it is characterized in that: described pit (11) is to be formed by die drawn.
4. a kind of integral type power battery explosion protection cover plate according to claim 1 is characterized in that: described annular groove (12) is to roll the indent cell body that thin type becomes by mould.
5. a kind of integral type power battery explosion protection cover plate according to claim 1 is characterized in that: described easily broken groove (13) is to roll the indent cell body that thin type becomes by mould.
6. a kind of integral type power battery explosion protection cover plate according to claim 1 is characterized in that: described pit (11) is a concave inward structure.
7. a kind of integral type power battery explosion protection cover plate according to claim 2 is characterized in that: the thickness that the annular groove (12) of described cover plate (1) is located is 0.1～0.2 millimeter, and the thickness that described easily broken groove (13) is located is between 0.003～0.02 millimeter.
8. a kind of integral type power battery explosion protection cover plate according to claim 1 is characterized in that: described cover plate (1) is aluminium or stainless steel or PTFE or PFA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201062986U CN201994354U (en) | 2011-04-12 | 2011-04-12 | Integral type anti-explosion cover plate of power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201062986U CN201994354U (en) | 2011-04-12 | 2011-04-12 | Integral type anti-explosion cover plate of power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994354U true CN201994354U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201062986U Expired - Fee Related CN201994354U (en) | 2011-04-12 | 2011-04-12 | Integral type anti-explosion cover plate of power battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN201994354U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637841A (en) * | 2012-04-10 | 2012-08-15 | 深圳邦凯新能源股份有限公司 | Production method of anti-explosion valve sheet, lithium ion battery and anti-explosion cover plate of lithium ion battery |
| CN103346272A (en) * | 2013-07-10 | 2013-10-09 | 倪志华 | Explosion-proof power lithium battery cover plate |
| CN103346273A (en) * | 2013-07-10 | 2013-10-09 | 倪志华 | Power lithium battery explosion-proof cover plate |
| CN103682206A (en) * | 2012-09-12 | 2014-03-26 | 深圳市沃特玛电池有限公司 | Leakage-proof cap of lithium ion power battery |
| CN109226506A (en) * | 2018-10-19 | 2019-01-18 | 上海中天铝线有限公司 | The punch-pin and component of easily broken groove on punching press Integral lithium battery explosion-proof covering board |
-
2011
- 2011-04-12 CN CN2011201062986U patent/CN201994354U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637841A (en) * | 2012-04-10 | 2012-08-15 | 深圳邦凯新能源股份有限公司 | Production method of anti-explosion valve sheet, lithium ion battery and anti-explosion cover plate of lithium ion battery |
| CN102637841B (en) * | 2012-04-10 | 2014-07-23 | 深圳邦凯新能源股份有限公司 | Production method of anti-explosion valve sheet, lithium ion battery and anti-explosion cover plate of lithium ion battery |
| CN103682206A (en) * | 2012-09-12 | 2014-03-26 | 深圳市沃特玛电池有限公司 | Leakage-proof cap of lithium ion power battery |
| CN103682206B (en) * | 2012-09-12 | 2016-12-21 | 深圳市沃特玛电池有限公司 | A kind of Leak-proof cap of lithium-ion-power cell |
| CN103346272A (en) * | 2013-07-10 | 2013-10-09 | 倪志华 | Explosion-proof power lithium battery cover plate |
| CN103346273A (en) * | 2013-07-10 | 2013-10-09 | 倪志华 | Power lithium battery explosion-proof cover plate |
| CN109226506A (en) * | 2018-10-19 | 2019-01-18 | 上海中天铝线有限公司 | The punch-pin and component of easily broken groove on punching press Integral lithium battery explosion-proof covering board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20130412 |