CN106129301A - Integrated rupture pressure disc and preparation method thereof on automobile lithium battery top cover - Google Patents
Integrated rupture pressure disc and preparation method thereof on automobile lithium battery top cover Download PDFInfo
- Publication number
- CN106129301A CN106129301A CN201610619473.9A CN201610619473A CN106129301A CN 106129301 A CN106129301 A CN 106129301A CN 201610619473 A CN201610619473 A CN 201610619473A CN 106129301 A CN106129301 A CN 106129301A
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- China
- Prior art keywords
- pressure disc
- lithium battery
- rupture pressure
- product
- cleaning
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- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of integrated rupture pressure disc and preparation method thereof on automobile lithium battery top cover, it is characterized in that, rupture pressure disc is overall together makes shaping with lithium battery top cap, described rupture pressure disc ovalize, around around oval enclosure wall, enclosure wall lower surface, lower surface near inner edge has prominent little enclosure wall, there is excessive small boss at this inboard wall, in the ellipse in small boss skirt, have beading anti-explosion groove, the upper and lower surface connecting lithium battery top cap outside oval enclosure wall to have trapezoidal groove；It is an advantage of the current invention that: rupture pressure disc and lithium battery top cap are the most compressing, the step for of eliminating welding, thus avoid rupture pressure disc burn through or the unwelded safety problem firmly etc. bringing product.
Description
Technical field
The present invention relates to field of lithium ion battery, in particular, it relates to one on automobile lithium battery top cover and becomes
The rupture pressure disc of type.
Background technology
Along with development and the enhancing of people's environmental consciousness of modern society, increasing equipment choice can charge two
Primary cell is as power supply, and electric automobile is also widelyd popularize.Electric automobile needs jumbo electrokinetic cell as power supply, and
These electrokinetic cells, in addition to having high power capacity, also should have good safety.
Automobile lithium battery overcharges safety guard and mainly uses rupture pressure disc in the market, and this rupture pressure disc is independent system
Make, further along rupture pressure disc periphery by being laser-welded on automobile lithium battery top cover.This is just laser-welded to automobile to rupture pressure disc
Proposing high requirement on lithium battery top cap, it is impossible to rosin joint occur, weld interval to be controlled and to put in place, and secondary to be carried out cleaning is protected
Protect, thus cause the rupture pressure disc occurring in production much scrapping, and safety has declined.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, it is provided that a kind of integrated anti-on automobile lithium battery top cover
Quick-fried film, its rupture pressure disc and lithium battery top cap are the most compressing, the step for of eliminating welding, thus avoid rupture pressure disc burn through
Or the unwelded product safety problem firmly etc. brought.
Technical scheme is as follows:
A kind of integrated rupture pressure disc on automobile lithium battery top cover, rupture pressure disc entirety is together made with lithium battery top cap
Shaping, described rupture pressure disc ovalize, around around oval enclosure wall, enclosure wall lower surface, the lower surface near inner edge has prominent
Go out little enclosure wall, have excessive small boss at this inboard wall, in the ellipse in small boss skirt, have beading anti-explosion groove, oval enclosure wall
Outside connects the upper and lower surface of lithium battery top cap trapezoidal groove.
Further, described beading anti-explosion groove forms racetrack groove along small boss beading or double fork-shaped beading forms double Y
Connected in star.
A kind of preparation method of integrated rupture pressure disc on automobile lithium battery top cover, specifically includes following steps:
1. top and bottom shape: cuboid lithium battery top cap flat for monoblock carries out press-in in the middle of preliminary swaging, lower surface ellipse
Circular groove, prominent material presses to upper surface and forms oval enclosure wall；
The most stamping: product ellipse enclosure wall step 1. shaped is outer with the upper and lower surface being connected lithium battery top cap all
Having the trapezoidal groove that beading is formed, and rupture pressure disc is carried out punching press, the material of the compression section after punching press all presses to enclosure wall following table
Face forms little enclosure wall near inner edge；
3. shaping: the region of step 2. ram-compressed is carried out further ironed leveling；
4. beading: rupture pressure disc step 3. shaped carries out beading, be pressed into again in ironed region a little groove of track type or
Double fork-shaped beadings form double Y shape groove；
5. Cleaning of Parts: carry out the step rupture pressure disc that 4. automobile lithium battery top cover is integrally formed annealing, after cleaning treatment
Obtain product.
Further, the step of described preparation method 2. described in be stamped into the groove of lower surface step 1. shaped and press again
Entering little oval-shaped groove, the region that upper surface enclosure wall surrounds also is pressed into a little oval-shaped groove, and upper and lower surfaces are together
Press-in, ironed overlapping region.
Further, the step of described preparation method 2. middle trapezoidal groove, trapezoidal groove sole length is 1.0mm, press-in
The a length of 0.2mm in face, height is 0.6mm, and trapezoidal groove both sides are in about 67 ° of angles.
Further, the step of described preparation method 5. middle annealing comprises the steps:
1. checking before operation: confirming major ingredient state, heat protective gloves is without breakage, and machine is intact normally, cleaning is annealed basket and turns
Connect basket；
2. product annealing prepares: pour integrated rupture pressure disc into annealing basket, sieves annealing basket, and tile product；
3. product annealing: machine operation is warming up to design temperature, and design temperature is between 360 DEG C to 400 DEG C, and keeps
Run 10 minutes, observe temperature detection table the most normal, time normal, wear heat protective gloves, move back the most ready for step rapidly
Fire basket is put in machine, opens air blast, time control, alarm switch；
4. product cooling: waiting step 3. middle alarm sounds, closing machine, rapid taking-up annealing basket is placed cooling zone and is propped up
Cool down on frame；
5. product packaging: step 4. in product from annealing basket pour switching basket into, staff wear fingerstall again by product fill
Enter in plastic bag, and be placed into end annealing behind work area.
Further, make annealing treatment described step 3. middle every layer of machine and can place 2 baskets, the most most 8 baskets.
Further, the step of described preparation method 5. middle cleaning treatment comprises the steps:
1. product is shifted: cleaning personnel will forward workbench to be cleaned with batch products to from district to be washed；
2. product clean prepare: step 1. in product by bag in units of uniformly pour into cleaning frame in, in frame each clearly
Washing basket can only be put into one and be contracted for fixed output quotas product, and rocks cleaning basket and make product be uniformly distributed；
3. product cleans: cleaning machine charging slide rail put into by step cleaning frame 2., clicks on " start button " and makes cleaning frame certainly
Dynamic entrance cleaning machine, carries out automatic cleaning process；
4. product packaging: step is cleaned frame after 3. cleaning and put into scavenger station, product is poured into plastic packaging bag, and does
Good mark；
5. product is deposited: step plastic packaging bag 4. is put in green box, transfer to behind cleaning area cleaning treatment terminate.
Further, cleaning treatment step 2. in each cleaning frame at most stack 4 cleaning baskets.
Further, cleaning treatment step 4. middle plastic packaging bag with new plastic packaging bag encapsulating products, and must be marked before and after cleaning
Label must keep consistent.
Present invention advantage compared to existing technology is: the present invention is reasonable in design, easy to make, and production cost is low, and product closes
Lattice rate improves, and industrial automation degree of one-tenth is high, and production speed is fast, and quality is easily controlled.The accurate valve pressure controlling lithium battery of energy,
When inner pressure of battery moment exceedes certain value, rupture pressure disc energy automatic-explosion, prevent lithium battery from exploding.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of integrated rupture pressure disc on automobile lithium battery top cover of the present invention；
Fig. 2 is a kind of top view of integrated rupture pressure disc on automobile lithium battery top cover of the present invention.
Fig. 3 is a kind of the bowing of the rupture pressure disc of integrated pair of Y shape beading anti-explosion groove on automobile lithium battery top cover of the present invention
View.
Detailed description of the invention
Below by specific embodiment, and combine accompanying drawing, technical scheme is described in further detail.Should
Working as understanding, the enforcement of the present invention is not limited to the following examples, any pro forma accommodation of being the present invention or change
Become and fall within scope.
In the present invention, if not refering in particular to, the equipment used and raw material etc. are all commercially available or commonly used in the art
's.Method in following embodiment, if no special instructions, is the conventional method of this area.
As depicted in figs. 1 and 2, a kind of integrated rupture pressure disc on automobile lithium battery top cover, rupture pressure disc is overall same
Lithium battery top cap together makes shaping, described rupture pressure disc ovalize 1, the oval enclosure wall 2 of cincture around, oval enclosure wall 2 times
Surface, the lower surface near inner edge has prominent little enclosure wall 3, has excessive small boss 4, small boss 4 skirt inside oval enclosure wall 2
On ellipse in have a beading anti-explosion groove 5, the upper and lower surface connecting lithium battery top cap outside oval enclosure wall has trapezoidal groove 6.
Described beading anti-explosion groove 5 forms racetrack groove along small boss 4 beading or double fork-shaped beading forms double Y shape groove.
Embodiment 1:
A kind of preparation method of integrated rupture pressure disc on automobile lithium battery top cover, it specifically includes following step
Rapid:
1. top and bottom shape: cuboid lithium battery top cap flat for monoblock carries out press-in in the middle of preliminary swaging, lower surface ellipse
Circular groove, prominent material presses to upper surface and forms oval enclosure wall 2；Integrated rupture pressure disc product just shape completes.
The most stamping: with the upper and lower surface being connected lithium battery top cap outside the product ellipse enclosure wall 2 that 1. step is shaped
Having the trapezoidal groove 6 that beading is formed, trapezoidal groove 6 sole length is 1.0mm, is pressed into a length of 0.2mm in face, and height is
0.6mm, trapezoidal groove 6 both sides are about in 67 ° of angles.Play the effect of fixing whole rupture pressure disc shape, it is to avoid ensuing operation
Change rupture pressure disc shape.
Rupture pressure disc is carried out punching press, and the material of the compression section after punching press all presses to oval enclosure wall 2 lower surface near interior
While form little enclosure wall 3；The described groove being stamped into lower surface step 1. shaped is pressed into little oval-shaped groove, upper surface again
The region that enclosure wall surrounds also is pressed into a little oval-shaped groove, and upper and lower surfaces are pressed into together, ironed overlapping region.
3. shaping: the region of step 2. ram-compressed is carried out further ironed leveling, the material now flowed just compares
Little, the most how to flow, polished the various little male and fomale(M&F) that may above cause on the whole；
4. beading: rupture pressure disc step 3. shaped carries out beading anti-explosion groove 5, is i.e. pressed into a track type again in ironed region
Little groove or double fork-shaped beading form double Y shape groove；This allows for when inner pressure of battery moment exceedes certain value, and rupture pressure disc can be from
Around the little groove of track type or middle double Y shape groove pop, thus prevent lithium electricity case fragmentation.
5. Cleaning of Parts: carry out the step rupture pressure disc that 4. automobile lithium battery top cover is integrally formed annealing, after cleaning treatment
Obtain product.
The step of preparation method 5. middle annealing comprises the steps:
1. checking before operation: confirming major ingredient state, heat protective gloves is without breakage, and machine is intact normally, cleaning is annealed basket and turns
Connect basket.
2. product annealing prepares: pour integrated rupture pressure disc into annealing basket, sieves annealing basket, and tile product.
3. product annealing: machine operation is warming up to design temperature, and design temperature is between 360 DEG C to 400 DEG C, and keeps
Run 10 minutes, observe temperature detection table the most normal, time normal, wear heat protective gloves, move back the most ready for step rapidly
Fire basket is put in machine, and every layer of machine can place 2 baskets, the most most 8 baskets, opens air blast, time control, alarm switch.
4. product cooling: waiting step 3. middle alarm sounds, closing machine, rapid taking-up annealing basket is placed cooling zone and is propped up
Cool down on frame；
5. product packaging: step 4. in product from annealing basket pour switching basket into, staff wear fingerstall again by product fill
Enter in plastic bag, and be placed into end annealing behind work area.
The step of preparation method 5. middle cleaning treatment comprises the steps:
1. product is shifted: cleaning personnel will forward workbench to be cleaned with batch products to from district to be washed.
2. product clean prepare: step 1. in product by bag in units of uniformly pour into cleaning frame in, in frame each clearly
Washing basket can only be put into one and be contracted for fixed output quotas product, and rocks cleaning basket and make product be uniformly distributed.Notice that each cleaning frame at most stacks 4 cleanings
Basket.
3. product cleans: cleaning machine charging slide rail put into by step cleaning frame 2., clicks on " start button " and makes cleaning frame certainly
Dynamic entrance cleaning machine, carries out automatic cleaning process；
4. product packaging: step is cleaned frame after 3. cleaning and put into scavenger station, product is poured into plastic packaging bag, and does
Good mark；Wherein plastic packaging bag must with new plastic packaging bag encapsulating products, and clean before and after label must keep consistent.
5. product is deposited: step plastic packaging bag 4. is put in green box, transfer to behind cleaning area cleaning treatment terminate.
Embodiment described above is the one preferably scheme of the present invention, not makees the present invention any pro forma
Limit, on the premise of without departing from the technical scheme described in claim, also have other variant and remodeling.
Claims (10)
1. an integrated rupture pressure disc on automobile lithium battery top cover, it is characterised in that the overall same lithium battery of rupture pressure disc
Top cover together makes shaping, described rupture pressure disc ovalize, and around around oval enclosure wall, enclosure wall lower surface, near inner edge
Lower surface has prominent little enclosure wall, has excessive small boss at this inboard wall, has beading anti-explosion groove in the ellipse in small boss skirt,
The upper and lower surface connecting lithium battery top cap outside oval enclosure wall has trapezoidal groove.
2. a kind of integrated rupture pressure disc on automobile lithium battery top cover described in a claim 1, it is characterised in that institute
State beading anti-explosion groove and form double Y shape groove along small boss beading formation racetrack groove or double fork-shaped beading.
3. an a kind of preparation method for integrated rupture pressure disc on automobile lithium battery top cover described in claim 1, its
It is characterised by specifically including following steps:
1. top and bottom shape: cuboid lithium battery top cap flat for monoblock carries out press-in ellipse in the middle of preliminary swaging, lower surface
Groove, prominent material presses to upper surface and forms oval enclosure wall；
The most stamping: product ellipse enclosure wall step 1. shaped is outer has pressure with the upper and lower surface being connected lithium battery top cap
The trapezoidal groove that muscle is formed, and rupture pressure disc is carried out punching press, the material of the compression section after punching press all presses to enclosure wall lower surface and leans on
Nearly inner edge forms little enclosure wall；
3. shaping: the region of step 2. ram-compressed is carried out further ironed leveling；
4. beading: rupture pressure disc step 3. shaped carries out beading, is pressed into the little groove of track type or a double fork again in ironed region
Shape beading forms double Y shape groove；
5. Cleaning of Parts: carry out the step rupture pressure disc that 4. automobile lithium battery top cover is integrally formed annealing, must produce after cleaning treatment
Product.
One the most according to claim 3 is integrated rupture pressure disc on automobile lithium battery top cover, it is characterised in that:
Step 2. described in be stamped into the groove of lower surface step 1. shaped and be pressed into little oval-shaped groove again, upper surface enclosure wall surrounds
Region be also pressed into a little oval-shaped groove, upper and lower surfaces are pressed into together, ironed overlapping region.
One the most according to claim 3 is integrated rupture pressure disc on automobile lithium battery top cover, it is characterised in that:
Step 2. middle trapezoidal groove, trapezoidal groove sole length is 1.0mm, is pressed into a length of 0.2mm in face, and height is 0.6mm, trapezoidal recessed
Groove both sides are about in 67 ° of angles.
One the most according to claim 3 is integrated rupture pressure disc on automobile lithium battery top cover, it is characterised in that:
Step 5. middle annealing comprises the steps:
1. check before operation: confirming major ingredient state, heat protective gloves is without breakage, and machine is intact normally, cleaning annealing basket and switching basket；
2. product annealing prepares: pour integrated rupture pressure disc into annealing basket, sieves annealing basket, and tile product；
3. product annealing: machine operation is warming up to design temperature, and design temperature is between 360 DEG C to 400 DEG C, and remains on
10 minutes, observe temperature detection table the most normal, time normal, wear heat protective gloves, rapidly by the most ready for step annealing basket
Put in machine, open air blast, time control, alarm switch；
4. product cooling: waiting step 3. middle alarm sounds, closing machine takes out rapidly annealing basket and places on the support of cooling zone
Cool down；
5. product packaging: step 4. in product from annealing basket pour switching basket into, staff wear fingerstall again by product load mould
In pocket, and it is placed into end annealing behind work area.
One the most according to claim 6 is integrated rupture pressure disc on automobile lithium battery top cover, it is characterised in that:
Step 3. middle every layer of machine can place 2 baskets, the most most 8 baskets.
One the most according to claim 3 is integrated rupture pressure disc on automobile lithium battery top cover, it is characterised in that:
Step 5. middle cleaning treatment comprises the steps:
1. product is shifted: cleaning personnel will forward workbench to be cleaned with batch products to from district to be washed；
2. product clean prepare: step 1. in product by bag in units of uniformly pour into cleaning frame in, each cleaning basket in frame
One can only be put into contract for fixed output quotas product, and rock cleaning basket and make product be uniformly distributed；
3. product cleans: cleaning machine charging slide rail put into by step cleaning frame 2., clicks on " start button " and makes cleaning frame automatically enter
Enter cleaning machine, carry out automatic cleaning process；
4. product packaging: step is cleaned frame after 3. cleaning and put into scavenger station, product is poured into plastic packaging bag, and carries out mark
Know；
5. product is deposited: step plastic packaging bag 4. is put in green box, transfer to behind cleaning area cleaning treatment terminate.
One the most according to claim 8 is integrated rupture pressure disc on automobile lithium battery top cover, it is characterised in that:
Step 2. in each cleaning frame at most stack 4 cleaning baskets.
One the most according to claim 8 is integrated rupture pressure disc on automobile lithium battery top cover, and its feature exists
In: step 4. in plastic packaging bag must be with new plastic packaging bag encapsulating products, and before and after cleaning, label must keep consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610619473.9A CN106129301B (en) | 2016-07-28 | 2016-07-28 | Integrally formed rupture pressure disc and preparation method thereof on automobile lithium battery top cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610619473.9A CN106129301B (en) | 2016-07-28 | 2016-07-28 | Integrally formed rupture pressure disc and preparation method thereof on automobile lithium battery top cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106129301A true CN106129301A (en) | 2016-11-16 |
| CN106129301B CN106129301B (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610619473.9A Active CN106129301B (en) | 2016-07-28 | 2016-07-28 | Integrally formed rupture pressure disc and preparation method thereof on automobile lithium battery top cover |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916615A (en) * | 2020-07-15 | 2020-11-10 | 江苏阿李动力科技有限公司 | Power battery explosion-proof valve structure and processing technology thereof |
| CN114985594A (en) * | 2022-08-04 | 2022-09-02 | 宁波震裕汽车部件有限公司 | Lithium battery top cover plate and explosion-proof valve mounting hole forming process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2896536Y (en) * | 2006-05-01 | 2007-05-02 | 王文林 | Anti-brust type lithium-cell lidboard |
| CN101569028A (en) * | 2006-12-26 | 2009-10-28 | 丰田自动车株式会社 | Battery, vehicle using the battery, and battery manufacturing method |
-
2016
- 2016-07-28 CN CN201610619473.9A patent/CN106129301B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2896536Y (en) * | 2006-05-01 | 2007-05-02 | 王文林 | Anti-brust type lithium-cell lidboard |
| CN101569028A (en) * | 2006-12-26 | 2009-10-28 | 丰田自动车株式会社 | Battery, vehicle using the battery, and battery manufacturing method |
| US20100028759A1 (en) * | 2006-12-26 | 2010-02-04 | Yoshiaki Ebine | Battery, vehicle using the battery, and battery manufacturing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916615A (en) * | 2020-07-15 | 2020-11-10 | 江苏阿李动力科技有限公司 | Power battery explosion-proof valve structure and processing technology thereof |
| CN114985594A (en) * | 2022-08-04 | 2022-09-02 | 宁波震裕汽车部件有限公司 | Lithium battery top cover plate and explosion-proof valve mounting hole forming process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106129301B (en) | 2018-11-27 |
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