CN103762324B - Exhaust safety valve for lead-acid storage battery and production process thereof - Google Patents
Exhaust safety valve for lead-acid storage battery and production process thereof Download PDFInfo
- Publication number
- CN103762324B CN103762324B CN201310750050.7A CN201310750050A CN103762324B CN 103762324 B CN103762324 B CN 103762324B CN 201310750050 A CN201310750050 A CN 201310750050A CN 103762324 B CN103762324 B CN 103762324B
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- China
- Prior art keywords
- lead
- pressure compensation
- safety valve
- storage battery
- compensation film
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
-
- 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)
- Gas Exhaust Devices For Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses an exhaust safety valve for a lead-acid storage battery. The exhaust safety valve comprises ultrasonic welding circular rings and pressure compensation films, wherein the ultrasonic welding circular rings are installed on the edges of safety valve ports on an upper cover of the lead-acid storage battery, and the pressure compensation films cover the safety valve ports and are connected with the ultrasonic welding circular rings through welding. The invention also discloses a production process of the exhaust safety valve for the lead-acid storage battery. The production process comprises the following steps in sequence: I. installing the ultrasonic welding circular rings; II. welding the pressure compensation films; III. cutting off the redundant pressure compensation films; IV. welding cover plates. The exhaust safety valve for the lead-acid storage battery replaces old rubber cap valves or columnar safety valves, furthest utilizes the effective space of the lead-acid storage battery and promotes the product performance. The production process of the exhaust safety valve for the lead-acid storage battery adopts the automatic ultrasonic welding technology, is efficient and energy-saving, and improves the production efficiency.
Description
Technical field
The invention belongs to battery technology field, concretely relates to a kind of exhaust safety valve for lead-acid storage battery, also relate to
And the production technology of this kind of exhaust safety valve for lead-acid storage battery.
Background technology
In prior art, lead-acid accumulator generally carries out dust-proof exhaust using Capsule valve or column safety valve, is required to
Top cover for lead-acid accumulator has valve seat to be supported, and valve seat occupies the larger space of lead-acid accumulator inner chamber, such as 6-DZM-12 types
Number battery, typically occupies in height the space of 8～12mm, right for the relatively low lead-acid accumulator of energy density per unit volume
The performance boost of battery generates considerable restraint, particularly with power lead acid battery, affects bigger.And, old-fashioned glue
Cap valve or column safety valve, pressure at expulsion control accuracy is poor, is divided into cracking pressure and valve closing pressure, and open and close valve pressure differential is general
For 10kPa or so, cause properties of product uniformity poor, for needing the battery pack that is used in series of many batteries, uniformity difference into
The main cause for failing is used for battery pack.Old-fashioned Capsule valve or column safety valve, are manually to be assembled, and are unfavorable for production
The raising of efficiency.
The Chinese patent of Application No. 200710114374.6 discloses a kind of lead-acid accumulator protection valve, by protective cover sheet
Constitute with valve seat, valve seat is assembled by compressing tablet, gland, two-layer filter acid film, safety valve body, Capsule, base plate, O-ring seal, protect
Protecting cover piece is cup-shaped structure, and inside top has reinforcement, and medial surface bottom margin has claw, and claw is convex with body top edge
Platform is corresponding；Protective cover sheet is connected with safety valve body for reverse buckling type, and protective cover sheet with valve seat relative to can freely rotate；Gland is
The internal chamber wall tight fit of cylindrical structure, its outer wall and safety valve body, gland intracavity bottom has necking platform, above necking platform successively
There are upper strata filter acid film and compressing tablet, the two internal chamber wall tight fit with gland.This kind of safety valve, to a certain extent reinforcement can carry
High cover plate intensity, makes gas smoothly separate out during pressure release, reverse buckling type connection is effectively guaranteed security, and protective cover sheet is relative and valve
Body is free to rotate, is conducive to sealing and extend battery life, but it is poor still cannot to solve properties of product uniformity, for needing
The battery pack for wanting many batteries to be used in series, causes battery pack to use the technical problem of failure.
The content of the invention
The technical problem to be solved is just to provide a kind of exhaust safety valve for lead-acid storage battery, replaces old-fashioned Capsule
Valve or column safety valve, to greatest extent using the useful space of lead-acid accumulator, improving product performance.
It is a further object to provide the production technology of this kind of exhaust safety valve for lead-acid storage battery, using automation
Ultrasonic welding technique, energy-efficient, improve production efficiency.
To solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：A kind of exhaust safety valve for lead-acid storage battery, bag
Ultrasonic bonding annulus and pressure compensation film are included, the ultrasonic bonding annulus is arranged on the safety on top cover for lead-acid accumulator
Valve port edge, the pressure compensation film is overlying on relief valve port and is welded to connect with ultrasonic bonding annulus.With prior art phase
Than, cancel existing valve base of safety valve, increase ultrasonic bonding annulus, such as 6-DZM-12 size batteries, save 6 in height～
The space of 10mm, lifts battery effectively utilizes space 5%～8%, meanwhile, it is easy to exhaust safety valve to install.
Preferably, the pressure compensation film is expanded polytetrafluoroethylsealing film.Expanded polytetrafluoroethylsealing film (expanded
Polytetrafluoroethylene, abbreviation e-PTFE), dust-proof grade reaches IP66 or IP67.IP degree of protection is by two
Numeral is constituted, and numeral is bigger, represents that its degree of protection is higher.First digit represents that light fixture is dust-proof, prevents what foreign object from invading
Grade, " 6 " represent that dirt is close, entirely prevent foreign object to invade, and dust can be entirely prevented to invade；Second digit represents that light fixture is damp proof
The tightness that gas, waterproof are invaded, " 6 " represent the intrusion for preventing billow, and the light fixture being installed on deck prevents invading because of billow
Attack and soak and cause to damage；" 7 " represent the water immersion prevented when soaking, and light fixture soaks regular hour or hydraulic pressure in water certain
Below the mark can ensure that do not cause because of water inlet and damage.
Preferably, the thickness of the pressure compensation film is 0.1～0.5mm.Pressure compensation film is by the tune to aperture
It is whole, in 5～40kPa scope precise controls pressure at expulsion precision can be controlled in ± 1kPa.
Preferably, the pressure compensation film is individual layer, double-deck or multilayer.According to product requirement reliability and safety,
Can be using individual layer, double-deck or multilayer mount scheme.Greatly improve than the old-fashioned exhaust safety valve precision of prior art, and reach will
Ask pressure, instant opening-closing valve to limit without valve opening pressure and valve closing pressure difference, improve the uniformity of lead-acid accumulator product.
The production technology of this kind of exhaust safety valve for lead-acid storage battery, comprises the following steps successively：
Step one, installation ultrasonic bonding annulus：Ultrasonic bonding annulus is fixedly mounted on top cover for lead-acid accumulator
Relief valve port edge；
Step 2, welding pressure compensation film：Pressure compensation film is overlying in relief valve port, by the weldering of pressure compensation film
It is connected on ultrasonic bonding annulus.It is right by the ultrasonic bonding annulus at top cover for lead-acid accumulator using ultrasonic welding machine
Pressure compensation film is welded；According to double-deck or multilayer mount scheme, this technical process is repeated；Double-deck or multilayer is installed
Pressure compensation film can further improve sealing security.
Preferably, this kind of lead-acid storage battery production technique, also includes：Step 3, wipe out unnecessary pressure compensation film：Will
Pressure compensation film unnecessary on the outside of ultrasonic bonding annulus is wiped out.After welding, using either manually or mechanically shearing, ultrasonic wave is cut off
Pressure compensation film outside welding annulus, keeps outward appearance clean and tidy, so as to the cover plate side of being welded thereon.
Preferably, this kind of lead-acid storage battery production technique, also includes：Step 4, welding cover plate：Cover plate is welded on into pressure
Compensation film top.Using ultrasonic welding machine, welding protection cover plate, pressure compensation film is protected.
A kind of exhaust safety valve for lead-acid storage battery of the present invention, replaces old-fashioned Capsule valve or column safety valve, to greatest extent
Utilization lead-acid accumulator the useful space, improving product performance.And the production technology of this kind of exhaust safety valve for lead-acid storage battery,
It is energy-efficient using automated ultrasonic solder technology, improve production efficiency.
Description of the drawings
With reference to the accompanying drawings and detailed description the invention will be further described：
Fig. 1 is a kind of structural representation of exhaust safety valve for lead-acid storage battery embodiment 1 of the invention；
Fig. 2 is the structural representation of the product that a kind of production technology of exhaust safety valve for lead-acid storage battery of the invention is obtained；
Fig. 3 is a kind of structural representation of exhaust safety valve for lead-acid storage battery embodiment 2 of the invention.
Specific embodiment
It is a kind of exhaust safety valve for lead-acid storage battery embodiment 1 of the invention as shown in Fig. 1 to 2, including ultrasonic bonding circle
Ring 2 and pressure compensation film 3, the ultrasonic bonding annulus 2 is arranged on the side of relief valve port 11 on top cover for lead-acid accumulator 1
Edge, the pressure compensation film 3 is overlying on relief valve port 11 and is welded to connect with ultrasonic bonding annulus 2.Compared with prior art,
Cancel existing valve base of safety valve, increase ultrasonic bonding annulus 2, such as 6-DZM-12 size batteries, save 6 in height～
The space of 10mm, lifts battery effectively utilizes space 5%～8%, meanwhile, it is easy to exhaust safety valve to install, cover plate 4 is welded on into pressure
The top of force compensating film 3.
The pressure compensation film 3 is expanded polytetrafluoroethylsealing film.Expanded polytetrafluoroethylsealing film (expanded
Polytetrafluoroethylene, abbreviation e-PTFE), dust-proof grade reaches IP66 or IP67.IP degree of protection is by two
Numeral is constituted, and numeral is bigger, represents that its degree of protection is higher.First digit represents that light fixture is dust-proof, prevents what foreign object from invading
Grade, " 6 " represent that dirt is close, entirely prevent foreign object to invade, and dust can be entirely prevented to invade；Second digit represents that light fixture is damp proof
The tightness that gas, waterproof are invaded, " 6 " represent the intrusion for preventing billow, and the light fixture being installed on deck prevents invading because of billow
Attack and soak and cause to damage；" 7 " represent the water immersion prevented when soaking, and light fixture soaks regular hour or hydraulic pressure in water certain
Below the mark can ensure that do not cause because of water inlet and damage.
The thickness of the pressure compensation film 3 is 0.1～0.5mm.Pressure compensation film 3, can by the adjustment to aperture
In 5～40kPa scope precise controls, control pressure at expulsion precision is in ± 1kPa.
The production technology of this kind of exhaust safety valve for lead-acid storage battery, comprises the following steps successively：
Step one, installation ultrasonic bonding annulus：Ultrasonic bonding annulus 2 is fixedly mounted on into top cover for lead-acid accumulator 1
On the edge of relief valve port 11；
Step 2, welding pressure compensation film：Pressure compensation film 3 is overlying in relief valve port 11, pressure compensation is thin
Film 3 is welded on ultrasonic bonding annulus 2.Using ultrasonic welding machine, by the ultrasonic bonding at top cover for lead-acid accumulator 1
Annulus 2, welds to pressure compensation film 3；According to double-deck or multilayer mount scheme, this technical process is repeated；Install
Double-deck or multilayer pressure compensation film 3 can further improve sealing security.
Step 3, wipe out unnecessary pressure compensation film：By the unnecessary pressure compensation film in the outside of ultrasonic bonding annulus 2
3 wipe out.After welding, using either manually or mechanically shearing, the pressure compensation film 3 outside ultrasonic bonding annulus 2 is cut off, keep outward appearance
Neatly, so as to the side of being welded thereon of cover plate 4.
Step 4, welding cover plate：Cover plate 4 is welded on into the top of pressure compensation film 3.Using ultrasonic welding machine, welding
Protective cover sheet 4, protection pressure compensation film 3, the product for obtaining is as shown in Figure 2.
As shown in figure 3, being a kind of exhaust safety valve for lead-acid storage battery embodiment 2 of the invention, structure and the basic phase of embodiment 1
Seemingly, difference is：The pressure compensation film 3 is bilayer.
The production technology of this kind of exhaust safety valve for lead-acid storage battery is similar to Example 1, and difference is：Repeat twice step
2nd, the operation of welding pressure compensation film 3.
The specific embodiment of the present invention is the foregoing is only, but the technical characteristic of the present invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, all cover among the scope of the claims of the present invention by the change or modification made.
Claims (6)
1. a kind of exhaust safety valve for lead-acid storage battery, it is characterised in that：Including ultrasonic bonding annulus（2）And pressure compensation film
（3）, the ultrasonic bonding annulus（2）Installed in top cover for lead-acid accumulator（1）On relief valve port（11）Edge, the pressure
Compensation film（3）It is overlying on relief valve port（11）And with ultrasonic bonding annulus（2）It is welded to connect by ultrasonic welding machine, it is described
Pressure compensation film（3）Thickness be 0.1～0.5mm, pressure compensation film by the adjustment to aperture, in 5～40kPa scopes
Precise control, control pressure at expulsion precision is in ± 1kPa.
2. a kind of exhaust safety valve for lead-acid storage battery according to claim 1, it is characterised in that：The pressure compensation film
（3）For expanded polytetrafluoroethylsealing film.
3. a kind of exhaust safety valve for lead-acid storage battery according to claim 1, it is characterised in that：The pressure compensation film
（3）For single or multiple lift.
4. a kind of production technology of exhaust safety valve for lead-acid storage battery according to claim 1, it is characterised in that：Include successively
Following steps：
Step one, installation ultrasonic bonding annulus：Peace ultrasonic bonding annulus being fixedly mounted on top cover for lead-acid accumulator
Full valve mouth edge；
Step 2, welding pressure compensation film：Pressure compensation film is overlying in relief valve port, pressure compensation film solder is existed
On ultrasonic bonding annulus.
5. a kind of production technology of exhaust safety valve for lead-acid storage battery according to claim 4, it is characterised in that：Also include：
Step 3, wipe out unnecessary pressure compensation film：Pressure compensation film unnecessary on the outside of ultrasonic bonding annulus is wiped out.
6. a kind of production technology of exhaust safety valve for lead-acid storage battery according to claim 5, it is characterised in that：Also include：
Step 4, welding cover plate：Cover plate is welded on into pressure compensation film top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750050.7A CN103762324B (en) | 2013-12-30 | 2013-12-30 | Exhaust safety valve for lead-acid storage battery and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750050.7A CN103762324B (en) | 2013-12-30 | 2013-12-30 | Exhaust safety valve for lead-acid storage battery and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103762324A CN103762324A (en) | 2014-04-30 |
| CN103762324B true CN103762324B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310750050.7A Active CN103762324B (en) | 2013-12-30 | 2013-12-30 | Exhaust safety valve for lead-acid storage battery and production process thereof |
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| Country | Link |
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| CN (1) | CN103762324B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190022830A (en) * | 2016-07-29 | 2019-03-06 | 비와이디 컴퍼니 리미티드 | Composite explosion-proof valve, cover plate assembly and battery |
| CN108598325A (en) * | 2018-06-07 | 2018-09-28 | 陶洋 | A kind of novel retainer of accumulator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2492949Y (en) * | 2001-07-10 | 2002-05-22 | 曲阜圣阳电源实业有限公司 | Valve controlled sealed lead-acid accumulator |
| CN2689469Y (en) * | 2004-03-22 | 2005-03-30 | 舟山市虹达特种橡胶制品有限公司 | Safety valve of free-maintaining valve-controlled sealing plumbous acid accumulator |
| CN101159321A (en) * | 2007-11-20 | 2008-04-09 | 山东圣阳电源实业有限公司 | Lead-acid accumulator protection valve |
-
2013
- 2013-12-30 CN CN201310750050.7A patent/CN103762324B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2492949Y (en) * | 2001-07-10 | 2002-05-22 | 曲阜圣阳电源实业有限公司 | Valve controlled sealed lead-acid accumulator |
| CN2689469Y (en) * | 2004-03-22 | 2005-03-30 | 舟山市虹达特种橡胶制品有限公司 | Safety valve of free-maintaining valve-controlled sealing plumbous acid accumulator |
| CN101159321A (en) * | 2007-11-20 | 2008-04-09 | 山东圣阳电源实业有限公司 | Lead-acid accumulator protection valve |
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| Publication number | Publication date |
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| CN103762324A (en) | 2014-04-30 |
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