CN103762324A - 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
- CN103762324A CN103762324A CN201310750050.7A CN201310750050A CN103762324A CN 103762324 A CN103762324 A CN 103762324A CN 201310750050 A CN201310750050 A CN 201310750050A CN 103762324 A CN103762324 A CN 103762324A
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- China
- Prior art keywords
- safety valve
- pressure compensation
- lead
- compensation film
- acid accumulator
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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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
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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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- 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, specifically relate to a kind of lead acid accumulator exhaust safety valve, also relate to the production technology of this kind of lead acid accumulator exhaust safety valve.
Background technology
In prior art, lead acid accumulator generally adopts the exhaust of preventing dust of Capsule valve or column safety valve, all need to there is valve seat to support at top cover for lead-acid accumulator, valve seat has occupied the larger space of lead acid accumulator inner chamber, as 6-DZM-12 size battery, has generally in height occupied the space of 8～12mm, for the lower lead acid accumulator of volumetric specific energy, performance boost to battery has produced considerable restraint, especially for power lead acid battery, affects larger.And, old-fashioned Capsule valve or column safety valve, exhaust pressure control precision is poor, be divided into cracking pressure and close valve pressure, open and close valve pressure differential is generally 10kPa left and right, cause properties of product consistency poor, the battery pack that many battery series connection are used for needs, the poor battery pack that becomes of consistency is used the main cause losing efficacy.Old-fashioned Capsule valve or column safety valve, for manually assembling, be unfavorable for the raising of production efficiency.
Application number is that 200710114374.6 Chinese patent discloses a kind of lead-acid accumulator protection valve, by protection cover plate and valve seat, formed, valve seat is assembled by compressing tablet, gland, two-layer filter acid film, safety valve body, Capsule, base plate, O-ring seal, protection cover plate is for falling cup-shaped structure, inside top has reinforcement, medial surface bottom margin has claw, and claw is corresponding along boss with valve body top sides; Protection cover plate is that reverse buckling type is connected with safety valve body, and protection cover plate is relative to can freely rotating with valve seat; Gland is cylindrical structure, the internal chamber wall tight fit of its outer wall and safety valve body, gland intracavity bottom has reducing platform, reducing platform have successively above upper strata filter acid film and a compressing tablet, the internal chamber wall tight fit of the two and gland.This kind of safety valve; reinforcement can improve cover plate intensity to a certain extent; during pressure release, make gas separate out smoothly; reverse buckling type connection has guaranteed fail safe effectively; protection cover plate is relative and valve body is free to rotate, is conducive to sealing extending battery life, but it is poor still cannot to solve properties of product consistency; the battery pack that many battery series connection are used for needs, causes battery pack to use the technical problem losing efficacy.
Summary of the invention
Technical problem to be solved by this invention is just to provide a kind of lead acid accumulator exhaust safety valve, replaces old-fashioned Capsule valve or column safety valve, utilizes to greatest extent the useful space of lead acid accumulator, improving product performance.
Another object of the present invention is to provide the production technology of this kind of lead acid accumulator exhaust safety valve, adopts automated ultrasonic solder technology, energy-efficient, enhances productivity.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of lead acid accumulator exhaust safety valve, comprise ultrasonic bonding annulus and pressure compensation film, described ultrasonic bonding annulus is arranged on the relief valve port edge on top cover for lead-acid accumulator, and described pressure compensation film is overlying on relief valve port and is welded to connect with ultrasonic bonding annulus.Compared with prior art, cancel existing valve base of safety valve, increase ultrasonic bonding annulus, as 6-DZM-12 size battery, in height saved the space of 6～10mm, promote battery and effectively utilize space 5%～8%, meanwhile, be convenient to exhaust safety valve and install.
Preferably, described pressure compensation film is expanded polytetrafluoroethylsealing film.Expanded polytetrafluoroethylsealing film (expanded polytetrafluoroethylene is called for short e-PTFE), dustproof grade reaches IP66 or IP67.IP degree of protection is comprised of two numerals, and numeral is larger, represents that its degree of protection is higher.First digit represents that light fixture prevents dust, prevents the grade that foreign object is invaded, and " 6 " represent that dirt is close, prevents foreign object intrusion completely, and can prevent dust intrusion completely; Second digit represents the airtight degree that light fixture blocks moisture, waterproof are invaded, and " 6 " represent to prevent the intrusion of billow, are installed in the light fixture on deck, prevent from soaking and causing damage because of the invasion and attack of billow; " 7 " represent that the water while preventing from soaking immerses, and light fixture regular hour under water or hydraulic pressure below the markly can be guaranteed not because water inlet causes damage certain.
Preferably, the thickness of described pressure compensation film is 0.1～0.5mm.Pressure compensation film by the adjustment to aperture, can accurately be controlled in 5～40kPa scope, controls exhaust pressure precision at ± 1kPa.
Preferably, described pressure compensation film is individual layer, bilayer or multilayer.According to product requirement reliability and safety, can adopt individual layer, bilayer or multilayer mount scheme.Old-fashioned exhaust safety valve precision than prior art improves greatly, and reaches requirement pressure, and instant opening-closing valve is pressed and closes the restriction of valve pressure difference without driving valve, has promoted the consistency of lead acid accumulator product.
The production technology of this kind of lead acid accumulator exhaust safety valve, comprises the following steps successively:
Preferably, this kind of lead acid accumulator production technology, also comprises: step 3, wipe out unnecessary pressure compensation film: unnecessary pressure compensation film outside ultrasonic bonding annulus is wiped out.After welding, adopt craft or mechanical shearing, the pressure compensation film outside excision ultrasonic bonding annulus, keeps outward appearance clean and tidy, so that the cover plate side of being welded thereon.
Preferably, this kind of lead acid accumulator production technology, also comprises: step 4, welding cover plate: cover plate is welded on to pressure compensation film top.Adopt ultrasonic welding machine, welding protection cover plate, protection pressure compensation film.
A kind of lead acid accumulator exhaust safety valve of the present invention, replaces old-fashioned Capsule valve or column safety valve, utilizes to greatest extent the useful space of lead acid accumulator, improving product performance.And the production technology of this kind of lead acid accumulator exhaust safety valve adopts automated ultrasonic solder technology, energy-efficient, enhance productivity.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is the structural representation of a kind of lead acid accumulator exhaust safety valve of the present invention embodiment 1;
Fig. 2 is the structural representation of the product that obtains of the production technology of a kind of lead acid accumulator exhaust safety valve of the present invention;
Fig. 3 is the structural representation of a kind of lead acid accumulator exhaust safety valve of the present invention embodiment 2.
Embodiment
As shown in Fig. 1 to 2, for a kind of lead acid accumulator exhaust safety valve of the present invention embodiment 1, comprise ultrasonic bonding annulus 2 and pressure compensation film 3, described ultrasonic bonding annulus 2 is arranged on relief valve port 11 edges on top cover for lead-acid accumulator 1, and described 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, as 6-DZM-12 size battery, in height saved the space of 6～10mm, promoted battery and effectively utilize space 5%～8%, simultaneously, be convenient to exhaust safety valve and install, cover plate 4 is welded on to pressure compensation film 3 tops.
Described pressure compensation film 3 is expanded polytetrafluoroethylsealing film.Expanded polytetrafluoroethylsealing film (expanded polytetrafluoroethylene is called for short e-PTFE), dustproof grade reaches IP66 or IP67.IP degree of protection is comprised of two numerals, and numeral is larger, represents that its degree of protection is higher.First digit represents that light fixture prevents dust, prevents the grade that foreign object is invaded, and " 6 " represent that dirt is close, prevents foreign object intrusion completely, and can prevent dust intrusion completely; Second digit represents the airtight degree that light fixture blocks moisture, waterproof are invaded, and " 6 " represent to prevent the intrusion of billow, are installed in the light fixture on deck, prevent from soaking and causing damage because of the invasion and attack of billow; " 7 " represent that the water while preventing from soaking immerses, and light fixture regular hour under water or hydraulic pressure below the markly can be guaranteed not because water inlet causes damage certain.
The thickness of described pressure compensation film 3 is 0.1～0.5mm.Pressure compensation film 3, by the adjustment to aperture, can accurately be controlled in 5～40kPa scope, controls exhaust pressure precision at ± 1kPa.
The production technology of this kind of lead acid accumulator exhaust safety valve, comprises the following steps successively:
As shown in Figure 3, be a kind of lead acid accumulator exhaust safety valve of the present invention embodiment 2, structure is substantially similar to embodiment 1, and difference is: described pressure compensation film 3 is for double-deck.
The production technology of this kind of lead acid accumulator exhaust safety valve is similar to embodiment 1, and difference is: repeat the operation of twice step 2, welding pressure compensation film 3.
The foregoing is only specific embodiments of the invention, but technical characterictic of the present invention is not limited to this, any those skilled in the art is in the field of the invention, and the variation of doing or modification are all encompassed among the scope of the claims of the present invention.
Claims (7)
1. a lead acid accumulator exhaust safety valve, it is characterized in that: comprise ultrasonic bonding annulus (2) and pressure compensation film (3), described ultrasonic bonding annulus (2) is arranged on relief valve port (11) edge on top cover for lead-acid accumulator (1), and described pressure compensation film (3) is overlying on relief valve port (11) and is welded to connect with ultrasonic bonding annulus (2).
2. a kind of lead acid accumulator exhaust safety valve according to claim 1, is characterized in that: described pressure compensation film (3) is expanded polytetrafluoroethylsealing film.
3. a kind of lead acid accumulator exhaust safety valve according to claim 1, is characterized in that: the thickness of described pressure compensation film (3) is 0.1～0.5mm.
4. a kind of lead acid accumulator exhaust safety valve according to claim 1, is characterized in that: described pressure compensation film (3) is individual layer, bilayer or multilayer.
5. a kind of production technology of lead acid accumulator exhaust safety valve described in claim 1, is characterized in that: comprise the following steps successively:
Step 1, installation ultrasonic bonding annulus: ultrasonic bonding annulus is fixedly mounted on to the relief valve port edge on top cover for lead-acid accumulator;
Step 2, welding pressure compensation film: pressure compensation film is overlying in relief valve port, pressure compensation film is welded on ultrasonic bonding annulus.
6. a kind of production technology of lead acid accumulator exhaust safety valve according to claim 5, is characterized in that: also comprise:
Step 3, wipe out unnecessary pressure compensation film: unnecessary pressure compensation film outside ultrasonic bonding annulus is wiped out.
7. a kind of production technology of lead acid accumulator exhaust safety valve according to claim 6, is characterized in that: also comprise:
Step 4, welding cover plate: cover plate is welded on to 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN103762324A true CN103762324A (en) | 2014-04-30 |
| CN103762324B CN103762324B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018019212A1 (en) * | 2016-07-29 | 2018-02-01 | 比亚迪股份有限公司 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018019212A1 (en) * | 2016-07-29 | 2018-02-01 | 比亚迪股份有限公司 | 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 |
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| Publication number | Publication date |
|---|---|
| CN103762324B (en) | 2017-04-12 |
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