CN106025115A - Manufacturing method of explosion-proof head cover plate - Google Patents
Manufacturing method of explosion-proof head cover plate Download PDFInfo
- Publication number
- CN106025115A CN106025115A CN201610415284.XA CN201610415284A CN106025115A CN 106025115 A CN106025115 A CN 106025115A CN 201610415284 A CN201610415284 A CN 201610415284A CN 106025115 A CN106025115 A CN 106025115A
- Authority
- CN
- China
- Prior art keywords
- explosion
- top cover
- explosionproof
- cover sheet
- burst disk
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 55
- 238000003754 machining Methods 0.000 claims abstract description 5
- 238000004880 explosion Methods 0.000 claims description 19
- 238000007373 indentation Methods 0.000 claims description 15
- 230000010485 coping Effects 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000012956 testing procedure Methods 0.000 abstract 1
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a manufacturing method of an explosion-proof head cover plate. Manufacturing is carried out by an integrated processing and molding method of an explosion-proof plate and the explosion-proof head cover plate. Firstly, an explosion-proof head cover plate blank is machined by a stamping method; secondly, an explosion-proof plate blank which is locally thinned is directly machined on the explosion-proof head cover plate blank through CNC machining; and finally, a burst score of the explosion-proof plate is machined on the explosion-proof plate blank obtained through CNC machining by a press compacting method. By the manufacturing method of the explosion-proof head cover plate, stamping, thermal treatment and detection procedures of the individual explosion-proof plate, a welding procedure of the explosion-proof plate and the head cover plate, a seal testing procedure of a welding line and the like are omitted; and the material and processing cost are reduced.
Description
Technical field
The present invention relates to explosionproof top cover sheet manufacture technology field, the making side of a kind of explosionproof top cover sheet
Method.
Background technology
Electrokinetic cell is in use, it is possible to meeting is due to short circuit or overcharges, cross reasons such as putting, causes
Inside battery produces the gas of High Temperature High Pressure, if these gases can not be discharged into outside batteries in time, and electricity
Pond be possible to blast disintegrate, on fire, occur major accident.So electrokinetic cell is generally provided with use
In the explosion-protection equipment that inside battery high temperature and high pressure gas is discharged in time.
Current power battery explosion protection coping plate uses split type burst disk, and its manufacture method and flow process be:
1, explosion-proof through hole being pre-machined on the metal roof cover plate of electrokinetic cell, the most additionally processing is a piece of and explosion-proof
The burst disk that through hole coordinates, 2, burst disk is welded on the explosion-proof through hole of coping plate, explosion-proof through hole is sealed.
3, butt welded seam does sealing propertytest, finally completes the making of explosionproof top cover sheet, flows to next operation.
The manufacture method of this explosionproof top cover sheet is more complicated, wastes material, and process cost is higher, and
And the reliability of product is the highest.
It is thus desirable to a kind of novel manufacture method changes above conventional batteries explosionproof top cover sheet manufacture method
Deficiency.
Summary of the invention
It is an object of the invention to provide the manufacture method of a kind of explosionproof top cover sheet, to solve above-mentioned background skill
The problem proposed in art.
For achieving the above object, the present invention provides following technical scheme: the making side of a kind of explosionproof top cover sheet
Method, uses burst disk and explosionproof top cover sheet to be integrally machined the method manufacture of molding；1, the method using punching press
Process explosionproof top cover sheet blank；2, use CNC directly to process local in explosionproof top cover sheet blank to go out to become
Thin burst disk blank,；3, the mode of hydraulic press or punch press or servo-pressing machine is used to process at CNC
The explosion indentation of burst disk is processed in the burst disk blank come；4, as required, medium-high frequency or super is used
The electromagnetic induction heating mode of high frequency, carries out local heat treatmet, heating-up temperature to the burst disk on coping plate
Scope is between 250 degree to 600 degree Celsius, and this step can increase according to actual needs or cancel；5、
Complete the making of explosionproof top cover sheet.
The manufacture method of a kind of explosionproof top cover sheet, uses medium-high frequency or the electromagnetic induction heating mode of hyperfrequency
Burst disk on explosionproof top cover sheet carries out local heat, make burst disk local deliquescing, make the quick-fried of burst disk
Broken pressure reaches to design requirement.
The manufacture method of a kind of explosionproof top cover sheet, the coping plate using above method to make out can make top cover
Burst disk local deliquescing (O state) on sheet, it is easier to explosion, and coping plate entirety is also to maintain hard state (H14
Between H24), meet the requirement of strength of top cover.
Further, the explosion indentation of described burst disk, when the pressure of inside battery is more than explosion indentation institute energy
During the pressure born, burst disk is i.e. split from this explosion indentation, forms the through hole of release high temperature and high pressure gas.
Further, described explosionproof top cover sheet blank and burst disk can be designed to any shape needed.
Compared with prior art, the invention has the beneficial effects as follows: the explosionproof top cover sheet manufacture method of the present invention
Eliminate the punch process of independent burst disk, heat treatment and detection operation；Burst disk is welded with coping plate
Operation, the sealing test operation etc. of weld seam, saved material and processing cost.Further, due to burst disk
It is exactly an entirety with coping plate, need not between burst disk with coping plate weld, also there is no weld seam, thorough
The end, avoids the hidden danger of the gas leakage such as solder skip, rosin joint, and, due to welding high temperature, tradition explosionproof top cover sheet
After manufacture method there is also welding, burst disk intensity sustains damage, and explosion-proof pressure change and lifetime etc. are asked
Topic.And new explosionproof top cover sheet manufacture method is not owing to without welding sequence, welding high temperature to explosion-proof
The impact of sheet, not only reduces process cost, also improves the reliability and stability of explosionproof top cover sheet.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention；
Fig. 1 a, Fig. 1 b are showing of the explosionproof top cover sheet blank that processes of method using punching press of the present invention
Being intended to, this explosionproof top cover sheet blank, according to the needs of design, is complete every other spy in addition to burst disk
The processing levied；
Fig. 2 a, Fig. 2 b are the mode that the present invention uses CNC to process, in explosionproof top cover sheet blank suitably
Position, directly processes the burst disk blank thinning with the local of coping plate one, this burst disk blank
Shape can be the machining sketch chart of any shape that design needs；
Fig. 3 a, Fig. 3 b are the employing hydraulic press of the present invention or punch press or servo-pressing machine, in burst disk blank
On process explosion indentation, when the pressure that the pressure of inside battery can bear more than explosion indentation, anti-
Quick-fried i.e. splits from this explosion indentation, forms the structural representation of the through hole of release high temperature and high pressure gas.
Fig. 3 b1 is the partial enlarged drawing of Fig. 3 b.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1, Fig. 1 a, Fig. 1 b, Fig. 2 a, Fig. 2 b, Fig. 3 a, Fig. 3 b and Fig. 3 b1, this
A kind of embodiment of bright offer: the manufacture method of a kind of explosionproof top cover sheet, uses burst disk and explosionproof top cover sheet
It is integrally machined the method manufacture of molding, 1, use the method processing explosionproof top cover sheet blank of punching press；2, adopt
In explosionproof top cover sheet blank, the most thinning burst disk blank in local is directly processed with CNC processing, 3, use
Hydraulic press or punch press or servo-pressing machine process burst disk in the burst disk blank that CNC processes
Explosion indentation a, completes the machining of explosionproof top cover sheet.
The manufacture method of a kind of explosionproof top cover sheet, uses medium-high frequency or the electromagnetic induction heating mode of hyperfrequency
Burst disk on explosionproof top cover sheet is carried out local heat, heating-up temperature Celsius 250 degree to 600 degree it
Between, make burst disk local deliquescing, make the burst pressure of burst disk reach to design requirement.This step is according to reality
Border needs, and can use or be not required to use.
The manufacture method of a kind of explosionproof top cover sheet, the coping plate using above method to process can make top
Burst disk local deliquescing (O state) on cover plate, it is easier to explosion, and coping plate entirety is also to maintain hard state
(between H14 to H24), meets the requirement of strength of top cover.
Further, the explosion indentation a of described burst disk, when the pressure of inside battery is more than explosion indentation a institute
During the pressure that can bear, burst disk is i.e. split from this explosion indentation a, forms release high temperature and high pressure gas
Through hole.
Further, described burst disk blank can be designed to any shape as required.
The explosionproof top cover sheet manufacture method of the present invention is not owing to without welding sequence, welding high temperature to anti-
The impact of quick-fried, not only reduces process cost, also improves the reliability and stability of explosionproof top cover sheet.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment,
And without departing from the spirit or essential characteristics of the present invention, it is possible to real in other specific forms
The existing present invention.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and
Being nonrestrictive, the scope of the present invention is limited by claims rather than described above, therefore purport
All changes in falling in the implication of equivalency and scope of claim are included in the present invention.
Should not be considered as limiting involved claim by any reference in claim.
Claims (5)
1. the manufacture method of an explosionproof top cover sheet, it is characterised in that: use burst disk and explosionproof top cover sheet one
The method manufacture of body machine-shaping；The first step, uses the method processing explosionproof top cover sheet blank of punching press；The
Two steps, use the method for CNC processing directly to process local in explosionproof top cover sheet blank the most thinning explosion-proof
Sheet blank, the 3rd step, use the method for forcing press compacting to add in the burst disk blank that CNC processes
Work goes out the explosion indentation of burst disk, thus completes the machining work of explosionproof top cover sheet.
2. the manufacture method of an explosionproof top cover sheet, it is characterised in that: use medium-high frequency or the electromagnetism of hyperfrequency
Induction heating mode carries out local and heats the burst disk on explosionproof top cover sheet, makes burst disk local deliquescing,
The burst pressure making burst disk reaches the requirement of design.
3. the manufacture method of an explosionproof top cover sheet, it is characterised in that: the coping plate made can make
Burst disk local deliquescing on coping plate, it is easier to explosion, and coping plate entirety is also to maintain hard state, full
The requirement of strength of foot top cover.
4. according to the manufacture method of a kind of explosionproof top cover sheet described in claim 1, it is characterised in that: institute
State the explosion indentation of burst disk, when the pressure that the pressure of inside battery can bear more than explosion indentation,
Burst disk is i.e. split from this explosion indentation, forms the through hole of release high temperature and high pressure gas.
5. according to the manufacture method of a kind of explosionproof top cover sheet described in claim 1, it is characterised in that: described
Explosionproof top cover sheet blank and burst disk can be all any shape being designed to need.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415284.XA CN106025115A (en) | 2016-06-14 | 2016-06-14 | Manufacturing method of explosion-proof head cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415284.XA CN106025115A (en) | 2016-06-14 | 2016-06-14 | Manufacturing method of explosion-proof head cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106025115A true CN106025115A (en) | 2016-10-12 |
Family
ID=57088153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610415284.XA Pending CN106025115A (en) | 2016-06-14 | 2016-06-14 | Manufacturing method of explosion-proof head cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106025115A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004111155A (en) * | 2002-09-17 | 2004-04-08 | Alps Electric Co Ltd | Safety device for battery and manufacturing method of the same |
| JP2006202560A (en) * | 2005-01-19 | 2006-08-03 | Toyota Motor Corp | Method of manufacturing sealed battery, and airtight inspection device |
| CN202268416U (en) * | 2011-04-27 | 2012-06-06 | 黄祥盛 | Novel battery explosion-proof valve structure |
| CN103427059A (en) * | 2012-05-22 | 2013-12-04 | 株式会社神户制钢所 | Method for forming the battery case cover and battery explosion valve housing cap |
| CN103898379A (en) * | 2012-12-29 | 2014-07-02 | 比亚迪股份有限公司 | Aluminum alloy anti-explosion sheet for lithium ion battery |
| CN104588526A (en) * | 2013-10-31 | 2015-05-06 | Smk株式会社 | Method for cold-forging thin-walled portion and explosion-proof valve |
| CN104659290A (en) * | 2013-11-20 | 2015-05-27 | Smk株式会社 | Sealed battery |
-
2016
- 2016-06-14 CN CN201610415284.XA patent/CN106025115A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004111155A (en) * | 2002-09-17 | 2004-04-08 | Alps Electric Co Ltd | Safety device for battery and manufacturing method of the same |
| JP2006202560A (en) * | 2005-01-19 | 2006-08-03 | Toyota Motor Corp | Method of manufacturing sealed battery, and airtight inspection device |
| CN202268416U (en) * | 2011-04-27 | 2012-06-06 | 黄祥盛 | Novel battery explosion-proof valve structure |
| CN103427059A (en) * | 2012-05-22 | 2013-12-04 | 株式会社神户制钢所 | Method for forming the battery case cover and battery explosion valve housing cap |
| CN103898379A (en) * | 2012-12-29 | 2014-07-02 | 比亚迪股份有限公司 | Aluminum alloy anti-explosion sheet for lithium ion battery |
| CN104588526A (en) * | 2013-10-31 | 2015-05-06 | Smk株式会社 | Method for cold-forging thin-walled portion and explosion-proof valve |
| CN104659290A (en) * | 2013-11-20 | 2015-05-27 | Smk株式会社 | Sealed battery |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |