CN114260531A - Welding method for lead-acid storage battery - Google Patents
Welding method for lead-acid storage battery Download PDFInfo
- Publication number
- CN114260531A CN114260531A CN202210005322.XA CN202210005322A CN114260531A CN 114260531 A CN114260531 A CN 114260531A CN 202210005322 A CN202210005322 A CN 202210005322A CN 114260531 A CN114260531 A CN 114260531A
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- CN
- China
- Prior art keywords
- lug
- lead
- clamp
- lugs
- positive
- 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.)
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- 238000003466 welding Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000003860 storage Methods 0.000 title claims abstract description 8
- 239000002253 acid Substances 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000005476 soldering Methods 0.000 claims abstract description 12
- 230000001680 brushing effect Effects 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 230000004907 flux Effects 0.000 claims abstract description 11
- 238000007598 dipping method Methods 0.000 claims abstract description 10
- 238000010415 tidying Methods 0.000 claims abstract description 6
- 238000007747 plating Methods 0.000 claims abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 20
- 230000007547 defect Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910000464 lead oxide Inorganic materials 0.000 description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 2
- LNSPFAOULBTYBI-UHFFFAOYSA-N [O].C#C Chemical group [O].C#C LNSPFAOULBTYBI-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a battery welding method, in particular to a lead-acid storage battery welding method. It comprises the following steps: loading the electrode group into a clamp, respectively tidying the positive and negative electrode lugs, and tightening the clamp; vertically turning the clamp for 180 degrees, enabling the lugs to face downwards, and brushing and cutting the lugs by a lug brushing and cutting device; dipping the tab with the soldering flux, wherein the dipping height of the soldering flux is 2-3 mm; the lug is tin-plated, and the tin-plating height is 2-3 mm; vertically turning the clamp for 189 degrees again to enable the tab to face upwards; the middle positioning plate is pressed between the positive and negative electrode lugs; comb teeth of the comb plate on two sides of the pole group extend into the middle positioning plate from a gap between the pole lug and the pole lug respectively, so that the comb plate on two positive and negative sides and the middle positioning plate form a mold cavity; and directly pouring molten high-temperature lead liquid into the die cavity from the lug, and simultaneously pouring lead into the whole die cavity or continuously pouring lead from one end to the other end of the die cavity. The invention not only reduces the energy consumption, but also improves the efficiency and ensures the welding quality.
Description
Technical Field
The invention relates to a battery welding method, in particular to a lead-acid storage battery welding method.
Background
The welding of the lead-acid storage battery is to melt the tabs of the assembled electrode groups to form a busbar to be connected with the electrode columns, and the electrode groups are connected with each other across a bridge, and generally two modes of cast welding and welding are adopted.
The typical cast-weld process at present is as follows:
1. loading the electrode group into a clamp, respectively tidying the positive and negative electrode lugs, and tightening the clamp;
2. vertically turning the clamp for 180 degrees, with the tab facing downwards, and brushing the tab by a tab brushing and cutting device; cutting the tabs 3, dipping the tabs with the soldering flux, wherein the height of the dipped soldering flux is about 2-3 mm;
4. the lug is tin-plated, and the tin-plating height is about 2-3 mm;
5. and (3) cast-welding, namely pumping high-temperature lead liquid into a die cavity of a cast-welding die by a lead pump, inserting the lug into the die cavity, cooling, demoulding and finishing the cast-welding.
A typical welding process today is as follows:
1. loading the electrode group into a clamp, respectively tidying the positive and negative electrode lugs, and tightening the clamp;
2. the middle positioning plate is pressed between the positive and negative electrode lugs;
3. comb teeth of the comb plate on two sides of the pole group extend into the middle positioning plate from a gap between the pole lug and the pole lug respectively, so that the comb plate on the positive side and the comb plate on the negative side and the middle positioning plate form a mold cavity, the height of the mold cavity is higher than that of the pole lug, and lead liquid cannot flow out during welding;
4. placing lead parts: putting the pre-made polar post lead pieces and the bridge-spanning lead pieces to corresponding positions;
5. welding: and (3) firstly burning and melting the lug part by using heat sources such as oxygen-acetylene or liquefied gas-acetylene to form a molten pool, then burning and melting a lead strip or a lead wire into the molten pool to supplement lead, cooling, withdrawing the middle positioning plate and the comb plate, and completing welding.
The prior cast-weld process has the following defects:
1. the cast-weld mould has high manufacturing cost, a plurality of battery types and different moulds are needed for different batteries, so the mould cost is high;
2. because high-temperature lead liquid needs to be pumped to a mould, a lead channel needs to be heated, insulated and sealed, the replacement and the assembly are complicated, the energy consumption is high, and the lead channel is often blocked by lead oxide slag and needs to be cleaned regularly and temporarily;
3. the requirements on the process parameters such as lead temperature, mold temperature, cooling water flow and the like are high, otherwise, the welding defects such as insufficient soldering, over-melting, chip falling and the like are easily caused.
The existing welding process has the following defects:
1. in the process of forming a molten pool by fusing the lug, due to the very high fusing temperature, lead liquid is easy to overflow from the space between the lug and the comb teeth to the diaphragm of the electrode group, so that the welding is unqualified;
2. because the lug is not brushed and cut, if a lead oxide layer is obviously formed on the lug, partial poor welding is easily caused, and the welding is unqualified.
3. The tab needs to be melted firstly, and the lead liquid has high temperature, so that the cooling time is long, and the welding efficiency is low.
Disclosure of Invention
The invention aims to provide a welding method of a lead-acid storage battery by combining the cast-weld process and the welding process aiming at the defects of the cast-weld process and the welding process of the existing storage battery.
The technical scheme of the invention is realized as follows:
1. loading the electrode group into a clamp, respectively tidying the positive and negative electrode lugs, and tightening the clamp;
2. vertically turning the clamp for 180 degrees, enabling the lugs to face downwards, and brushing and cutting the lugs by a lug brushing and cutting device;
3. dipping the tab with the soldering flux, wherein the dipping height of the soldering flux is 2-3 mm;
4. the lug is tin-plated, and the tin-plating height is 2-3 mm;
5. vertically turning the clamp for 189 degrees again to enable the tab to face upwards;
6. the middle positioning plate is pressed between the positive and negative electrode lugs;
7. comb teeth of comb plates on two sides of the pole group extend into the middle positioning plate from a gap between the pole lug and the pole lug respectively, so that the comb plates on the positive side and the negative side and the middle positioning plate form a mold cavity, the height of the mold cavity is higher than that of the pole lug, and lead liquid cannot flow out during welding;
8. welding: molten high-temperature lead liquid is directly poured into the die cavity from the lug, and the whole die cavity can be simultaneously poured with lead or continuously poured from one end to the other end of the die cavity.
The invention combines the advantages of the prior cast-weld process and the prior welding process, overcomes the defects of the prior cast-weld process or the prior welding process, and has the following advantages:
1. the welding effect is ensured: because the high-temperature lead liquid is firstly contacted with the end face of the tab, the tab and the tin hung on the tab are melted instantly, and the tab and the bus bar are ensured to be fused into a whole perfectly;
2. ensuring no lead leakage: because the tab is subjected to brushing, cutting, soldering flux dipping and tin coating treatment, the temperature of lead liquid is only required to be about 500 ℃ during welding, most heat is consumed by the lead liquid and the tab in the first contact, and the lead liquid is solidified or nearly solidified when reaching the bottom of the die cavity, so that lead leakage is avoided.
3. High efficiency and low energy consumption: the procedure of forming a molten pool by fusing the lugs by a fusing process is cancelled, and the temperature of the lead liquid is much lower than that of the fusing process, so that the cooling time is much shorter, the energy consumption is reduced, and the efficiency is improved;
4. the requirement on the process parameters is not high, the process parameters are mainly the temperature of the lead liquid, and the lead liquid can ensure the melting of the upper parts of the lugs, so the process parameters can be met within a certain range, do not need to be particularly accurate and are convenient to implement;
5. low cost and convenient model changing: compared with an expensive cast-weld mold, the cost of the middle positioning plate and the positive and negative comb plates is much lower, and the mold change is simple and convenient;
drawings
Fig. 1 is a schematic structural view of a jig.
Fig. 2 is a diagram of a welding apparatus of the present invention.
Fig. 3 is a schematic view of the welding process of the present invention.
Detailed Description
The invention will be further elucidated with reference to the following specific examples.
As shown in fig. 1, 2 and 3, the present invention comprises the following steps:
1. loading the electrode group into a clamp, respectively tidying the positive and negative electrode lugs, and tightening the clamp;
2. vertically turning the clamp for 180 degrees, enabling the lugs to face downwards, and brushing and cutting the lugs by a lug brushing and cutting device;
3. dipping the tab with the soldering flux, wherein the dipping height of the soldering flux is 2-3 mm;
4. the lug is tin-plated, and the tin-plating height is 2-3 mm;
5. vertically turning the clamp for 189 degrees again to enable the tab to face upwards;
6. the middle positioning plate is pressed between the positive and negative electrode lugs;
7. comb teeth of comb plates on two sides of the pole group extend into the middle positioning plate from a gap between the pole lug and the pole lug respectively, so that the comb plates on the positive side and the negative side and the middle positioning plate form a mold cavity, the height of the mold cavity is higher than that of the pole lug, and lead liquid cannot flow out during welding;
8. welding: molten high-temperature lead liquid is directly poured into the die cavity from the lug, and the whole die cavity can be simultaneously poured with lead or continuously poured from one end to the other end of the die cavity.
The above embodiments are only used for illustrating the design idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention accordingly, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes and modifications made in accordance with the principles and concepts disclosed herein are intended to be included within the scope of the present invention.
Claims (1)
1. A lead-acid storage battery welding method comprises the following steps:
(1) loading the electrode group into a clamp, respectively tidying the positive and negative electrode lugs, and tightening the clamp;
(2) vertically turning the clamp for 180 degrees, enabling the lugs to face downwards, and brushing and cutting the lugs by a lug brushing and cutting device;
(3) dipping the tab with the soldering flux, wherein the dipping height of the soldering flux is 2-3 mm;
(4) the lug is tin-plated, and the tin-plating height is 2-3 mm;
(5) vertically turning the clamp for 189 degrees again to enable the tab to face upwards;
(6) the middle positioning plate is pressed between the positive and negative electrode lugs;
(7) comb teeth of the comb plate on two sides of the pole group extend into the middle positioning plate from a gap between the pole lug and the pole lug respectively, so that the comb plate on two positive and negative sides and the middle positioning plate form a mold cavity;
(8) welding: and directly pouring molten high-temperature lead liquid into the die cavity from the lug, and simultaneously pouring lead into the whole die cavity or continuously pouring lead from one end to the other end of the die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210005322.XA CN114260531A (en) | 2022-01-05 | 2022-01-05 | Welding method for lead-acid storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210005322.XA CN114260531A (en) | 2022-01-05 | 2022-01-05 | Welding method for lead-acid storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114260531A true CN114260531A (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210005322.XA Pending CN114260531A (en) | 2022-01-05 | 2022-01-05 | Welding method for lead-acid storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114260531A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116598604A (en) * | 2023-05-22 | 2023-08-15 | 安徽海容能源科技有限公司 | Equipment for assembling single cell and shell in lead-acid storage battery |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134852A (en) * | 1987-11-20 | 1989-05-26 | Yuasa Battery Co Ltd | Manufacture of lead-acid battery |
| JP2002198030A (en) * | 2000-12-25 | 2002-07-12 | Furukawa Battery Co Ltd:The | Molding jig for strap connecting electrode lug group of lead storage battery |
| JP2002237288A (en) * | 2001-02-08 | 2002-08-23 | Matsushita Electric Ind Co Ltd | Method of manufacturing electrode plate group body for lead-acid battery, and lead-acid battery |
| CN102891278A (en) * | 2012-10-18 | 2013-01-23 | 双登集团股份有限公司 | Casting and welding method of lead-acid storage battery busbar |
| CN103264154A (en) * | 2013-05-14 | 2013-08-28 | 超威电源有限公司 | Tank formation manufacturing technology for storage batteries |
| CN103560222A (en) * | 2013-10-31 | 2014-02-05 | 河南超威电源有限公司 | Connection method of lead-acid storage battery polar plates and device used for connection method |
| CN104551329A (en) * | 2014-12-11 | 2015-04-29 | 张涛 | Lead acid battery polar group heating fuse welding process |
| CN106180958A (en) * | 2016-08-03 | 2016-12-07 | 湖北润阳新能源有限公司 | Lead-acid storage battery busbar welder and method |
| CN206225487U (en) * | 2016-10-28 | 2017-06-06 | 浙江兜兰智能设备股份有限公司 | Battery cuts brush and cast welding integral type automated production equipment |
| CN106848441A (en) * | 2017-01-23 | 2017-06-13 | 衡阳瑞达电源有限公司 | A kind of sub- lead-acid accumulator cast welding production technology of silver-plated nose circle |
-
2022
- 2022-01-05 CN CN202210005322.XA patent/CN114260531A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134852A (en) * | 1987-11-20 | 1989-05-26 | Yuasa Battery Co Ltd | Manufacture of lead-acid battery |
| JP2002198030A (en) * | 2000-12-25 | 2002-07-12 | Furukawa Battery Co Ltd:The | Molding jig for strap connecting electrode lug group of lead storage battery |
| JP2002237288A (en) * | 2001-02-08 | 2002-08-23 | Matsushita Electric Ind Co Ltd | Method of manufacturing electrode plate group body for lead-acid battery, and lead-acid battery |
| CN102891278A (en) * | 2012-10-18 | 2013-01-23 | 双登集团股份有限公司 | Casting and welding method of lead-acid storage battery busbar |
| CN103264154A (en) * | 2013-05-14 | 2013-08-28 | 超威电源有限公司 | Tank formation manufacturing technology for storage batteries |
| CN103560222A (en) * | 2013-10-31 | 2014-02-05 | 河南超威电源有限公司 | Connection method of lead-acid storage battery polar plates and device used for connection method |
| CN104551329A (en) * | 2014-12-11 | 2015-04-29 | 张涛 | Lead acid battery polar group heating fuse welding process |
| CN106180958A (en) * | 2016-08-03 | 2016-12-07 | 湖北润阳新能源有限公司 | Lead-acid storage battery busbar welder and method |
| CN206225487U (en) * | 2016-10-28 | 2017-06-06 | 浙江兜兰智能设备股份有限公司 | Battery cuts brush and cast welding integral type automated production equipment |
| CN106848441A (en) * | 2017-01-23 | 2017-06-13 | 衡阳瑞达电源有限公司 | A kind of sub- lead-acid accumulator cast welding production technology of silver-plated nose circle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116598604A (en) * | 2023-05-22 | 2023-08-15 | 安徽海容能源科技有限公司 | Equipment for assembling single cell and shell in lead-acid storage battery |
| CN116598604B (en) * | 2023-05-22 | 2024-06-07 | 安徽海容能源科技有限公司 | Equipment for assembling single cell and shell in lead-acid storage battery |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20220401 |