CN113042847A - Device and method for welding multiple foam metal tabs of metal fuel cell - Google Patents
Device and method for welding multiple foam metal tabs of metal fuel cell Download PDFInfo
- Publication number
- CN113042847A CN113042847A CN201911258228.XA CN201911258228A CN113042847A CN 113042847 A CN113042847 A CN 113042847A CN 201911258228 A CN201911258228 A CN 201911258228A CN 113042847 A CN113042847 A CN 113042847A
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- China
- Prior art keywords
- welding block
- block
- welding
- groove
- opening end
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/04—Heating appliances
- B23K3/047—Heating appliances electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/04—Heating appliances
- B23K3/047—Heating appliances electric
- B23K3/0471—Heating appliances electric using resistance rod or bar, e.g. carbon silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
- B23K3/063—Solder feeding devices for wire feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0297—Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
A metal fuel cell lug welding device comprises an upper welding block, a lower welding block, a clamping handle, a spring, a heating rod, a temperature sensor and a temperature controller. The welding block is fixed in clamping handle one end, and the welding block presss from both sides tight handle perpendicularly, goes up the welding block and is on a parallel with welding block and both mutual contacts down, and the spring is fixed in the middle of pressing from both sides tight handle, and the heating rod passes through threaded connection in the welding block and is connected with the temperature controller, and temperature sensor places in soldered connection one side and is connected with the temperature controller. The invention can quickly weld the current collecting position of the battery tab, keeps good uniformity and reliability and greatly improves efficiency and quality.
Description
Technical Field
The invention belongs to the technical field of metal fuel cells, and particularly relates to a device and a method for quickly welding a tab of a metal fuel cell.
Background
A fuel cell is a chemical reaction device that directly converts chemical energy in fuel into electrical energy. Because of the advantages of high specific energy of fuel, simple structure of fuel cell system, etc., the metal fuel cell has wide application prospect in the fields of water surface, underwater, communication base station, standby power supply, etc.
In practical application, tab soldering is usually required to be performed on the metal fuel cell, and the electric connection can be realized by soldering tin between the tabs. When single batteries or batch batteries are prepared, the number of tests and the number of used batteries are large, the welding of the batteries by the traditional soldering gun is low in efficiency, and the quality and the uniformity of manual welding are not controlled, so that the quick welding is realized, and the quality of the batteries is remarkably improved.
Disclosure of Invention
The invention is realized by adopting the following specific scheme in order to solve the defects in the prior art.
A welding device for a plurality of foam metal tabs of a metal fuel cell comprises an upper welding block (1) and a lower welding block (2);
the upper welding block is a rectangular block body, a groove with a lower opening end and a side opening end is formed in the position, close to one side wall surface, of the lower surface of the upper welding block, the lower opening end of the groove is located on the lower surface of the block body, the side opening end of the groove is located on one side wall surface of the block body, the cross section of the groove parallel to the lower surface of the block body is the same as the shape of the welding end of the sheet-shaped lug, and the size of the;
the lower welding block is a rectangular block body, a groove with an upper opening end and a side opening end is formed in the position, close to one side wall surface, of the upper surface of the lower welding block, the upper opening end of the groove is located on the upper surface of the block body, the side opening end of the groove is located on one side wall surface of the block body, and the cross section of the groove parallel to the upper surface of the block body is the same as the shape of the welding end of the sheet-shaped lug and larger than the size of the;
the upper welding block is placed above the lower welding block, and the lower opening end of the groove of the upper welding block and the upper opening end of the groove of the lower welding block are oppositely placed; the opening end of the groove side of the upper welding block and the opening end of the groove side of the lower welding block are positioned on the same side of the upper welding block and the lower welding block;
an electric heating element and a temperature sensor are arranged inside the upper welding block and the lower welding block, the electric heating element is connected with an external power supply through a temperature control instrument, and the temperature sensor is in signal connection with the temperature control instrument.
The method for welding by the device comprises the following steps,
adopt go up welding block and lower welding block carry out the welding operation of utmost point ear one end, welding process is:
1) the electric heating element is connected with a power supply, and the temperature of the upper welding block and the lower welding block is adjusted to be 250-350 ℃;
2) sequentially laminating more than 2 foam metal tabs to be welded, winding a circle of sheet soldering tin at the front end (welding end) of the laminated tabs, dripping phosphoric acid with the mass concentration of 70-85% on the upper part of the wound annular soldering tin to enable the phosphoric acid to permeate to the bottom from the upper part of the laminated tabs, and placing the laminated tabs into two corresponding grooves of an upper welding block and a lower welding block;
3) applying a pressing force on the upper surface and the lower surface of the upper welding block and the lower welding block by using a clamping device to melt soldering tin into the lug;
4) and (4) loosening the clamping device, and taking out the integrally welded and fixed lug.
The clamping device is a pair of pliers.
The clamping device is a pair of pliers provided with a pressure spring between two clamping handles.
The electric heating element is a heating rod or a heating sheet.
The upper welding block and the lower welding block are made of aluminum alloy.
The depth of the groove is slightly larger than the thickness of the foam pole lug, and the difference between the two is 0.2-1 mm.
And one side of the foam metal lug opposite to the welding end is a foam metal substrate cathode fixedly connected with the lug.
The method is used for electrical connection during assembly of the cathode of the metal fuel cell.
Compared with the prior art, the invention has the following advantages:
1. the operation is simple, and the tab can be welded only by holding the handle tightly;
2. the shape and the size of the welding of the lugs can be restricted;
3. the uniformity of the melted soldering tin is improved;
4. the temperature of the welding block is controllable;
5. the welding efficiency and the quality are high;
6. the production efficiency is improved.
Drawings
FIG. 1 is a diagram of the assembly components of a fuel cell tab welding apparatus according to the present invention;
FIG. 2 is a diagram of a solder block according to the present invention;
FIG. 3 is a schematic diagram of the position of a heating rod, a temperature sensor and a welding block according to the present invention;
FIG. 4 is a diagram of a clamp handle and weld block according to the present invention;
FIG. 5 is a schematic view of a metal fuel cell stack according to the present invention;
fig. 6 is a schematic diagram of a process for welding a tab according to the present invention;
in the figure, 1, a welding block is arranged; 2. a lower welding block; 3. clamping the handle; 4. a spring; 5. a heating rod; 6. a temperature sensor; 7. and a temperature controller.
Detailed Description
The structure of the welding device for the foam metal tab of the metal fuel cell is shown in figure 1 and is assembled by 1-7 parts.
The welding block composed of the upper and lower welding blocks may sufficiently restrict the shape and size after welding, as shown in fig. 2.
The heating rod is connected with the welding block through threads, and the temperature sensor is placed at an opening on the side face of the welding block, as shown in fig. 3.
The clamping handle and the welding block are fixed together by welding, as shown in fig. 4.
The schematic structural diagram of the metal fuel cell stack is shown in fig. 5, wherein the cathode and the anode are arranged at intervals, the positions of the cathode tabs in the stack correspond up and down, and the tabs of the stack are placed in the middle of the welding block to perform a soldering process, as shown in fig. 6.
The use method of the metal fuel cell foam metal tab welding device comprises the following steps:
1) the electric heating element is connected with a power supply, and the temperature controller 7 is adjusted to enable the temperature of the upper welding block 1 and the lower welding block 2 to be 250-350 ℃;
2) sequentially laminating 10 foam metal tabs to be welded, winding a circle of sheet soldering tin at the front end (welding end) of the laminated tab, dripping phosphoric acid with the mass concentration of 70-85% on the upper part of the wound annular soldering tin to enable the phosphoric acid to permeate to the bottom from the upper part of the laminated tab, and placing the laminated tab in two corresponding grooves of an upper welding block and a lower welding block;
3) applying a pressing force on the upper surface and the lower surface of the upper welding block 1 and the lower welding block 2 by using a clamping device to melt soldering tin into the lugs;
4) and (4) loosening the clamping device, and taking out the integrally welded and fixed lug.
The current collection and the electric connection of the cathode can be conveniently and rapidly completed in the process, the operation is simple, and the tab can be welded only by holding the handle tightly; the shape and the size of the welding of the lugs can be restricted; the uniformity of the melted soldering tin is improved; the temperature of the welding block is controllable; the welding efficiency and the quality are high; the production efficiency is improved.
Claims (9)
1. The utility model provides a plurality of foam metal utmost point ear welding set of metal fuel cell which characterized in that: comprises an upper welding block (1) and a lower welding block (2);
the upper welding block (1) is a rectangular block body, a groove with a lower opening end and a side opening end is formed in the position, close to one side wall surface, of the lower surface of the upper welding block, the lower opening end of the groove is located on the lower surface of the block body, the side opening end of the groove is located on one side wall surface of the block body, and the cross section of the groove parallel to the lower surface of the block body is the same as the shape of a welding end of a sheet-shaped lug and larger than the size;
the lower welding block (2) is a rectangular block, a groove with an upper opening end and a side opening end is formed in the position, close to one side wall surface, of the upper surface of the lower welding block, the upper opening end of the groove is located on the upper surface of the block, the side opening end of the groove is located on one side wall surface of the block, the cross section of the groove, parallel to the upper surface of the block, is the same as the shape of a welding end of a sheet-shaped lug, and the size of the cross section of the;
the upper welding block (1) is placed above the lower welding block (2), and the lower opening end of the groove of the upper welding block (1) and the upper opening end of the groove of the lower welding block (2) are oppositely placed; the opening end of the groove side of the upper welding block (1) and the opening end of the groove side of the lower welding block (2) are positioned on the same side of the upper welding block (1) and the lower welding block (2);
an electric heating element and a temperature sensor (6) are respectively arranged inside the upper welding block (1) and the lower welding block (2), the electric heating element is connected with an external power supply through a temperature control instrument (7), and the temperature sensor is in signal connection with the temperature control instrument (7).
2. A method of welding using the apparatus of claim 1, wherein: the method comprises the following steps of adopting the upper welding block (1) and the lower welding block (2) to perform welding operation on one end of a pole lug, wherein the welding process is as follows:
1) the electric heating element is connected with a power supply, and the temperature of the upper welding block (1) and the lower welding block (2) is adjusted to be 250-350 ℃ by the temperature control instrument (7);
2) sequentially laminating more than 2 foam metal tabs to be welded, winding a circle of sheet soldering tin at the front end (welding end) of the laminated tabs, dripping phosphoric acid with the mass concentration of 70-85% on the upper part of the wound annular soldering tin to enable the phosphoric acid to permeate to the bottom from the upper part of the laminated tabs, and placing the laminated tabs into two corresponding grooves of an upper welding block and a lower welding block;
3) applying a pressing force on the upper surface and the lower surface of the upper welding block (1) and the lower welding block (2) by using a clamping device to melt soldering tin into the lugs;
4) and (4) loosening the clamping device, and taking out the integrally welded and fixed lug.
3. The method of claim 2, wherein:
the clamping device is a pair of pliers.
4. A method according to claim 3, characterized by:
the clamping device is a pair of pliers provided with a pressure spring between two clamping handles (3).
5. The method of claim 2, wherein:
the electric heating element is a heating rod (5) or a heating sheet.
6. The method of claim 2, wherein: the upper welding block (1) and the lower welding block (2) are made of aluminum alloy.
7. The method of claim 2, wherein: the depth of the groove is slightly larger than the thickness of the foam pole lug, and the difference between the two is 0.2-1 mm.
8. The method of claim 2, wherein: and one side of the foam metal lug opposite to the welding end is a foam metal substrate cathode fixedly connected with the lug.
9. The method of claim 8, wherein: the method is used for electrical connection during assembly of the cathode of the metal fuel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911258228.XA CN113042847B (en) | 2019-12-10 | 2019-12-10 | Device and method for welding multiple foam metal tabs of metal fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911258228.XA CN113042847B (en) | 2019-12-10 | 2019-12-10 | Device and method for welding multiple foam metal tabs of metal fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113042847A true CN113042847A (en) | 2021-06-29 |
| CN113042847B CN113042847B (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911258228.XA Active CN113042847B (en) | 2019-12-10 | 2019-12-10 | Device and method for welding multiple foam metal tabs of metal fuel cell |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2144551Y (en) * | 1992-12-31 | 1993-10-27 | 李春梅 | Electric iron pincers |
| JPH11170040A (en) * | 1997-12-05 | 1999-06-29 | Sony Corp | Soldering iron |
| CN201483116U (en) * | 2009-05-26 | 2010-05-26 | 陈际军 | Clamp type electric iron |
| CN103785919A (en) * | 2012-10-29 | 2014-05-14 | 何海兵 | Electric heating tongs for copper pipe welding |
| US9669481B1 (en) * | 2013-04-01 | 2017-06-06 | Raptor Equipment, Llc | Soldering tool |
| CN107297555A (en) * | 2017-06-30 | 2017-10-27 | 韩华新能源（启东）有限公司 | A kind of soldering appliance and welding method |
| CN209565679U (en) * | 2018-12-04 | 2019-11-01 | 卧龙电气集团股份有限公司 | A kind of cell polar ear directly welds locating piece |
-
2019
- 2019-12-10 CN CN201911258228.XA patent/CN113042847B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2144551Y (en) * | 1992-12-31 | 1993-10-27 | 李春梅 | Electric iron pincers |
| JPH11170040A (en) * | 1997-12-05 | 1999-06-29 | Sony Corp | Soldering iron |
| CN201483116U (en) * | 2009-05-26 | 2010-05-26 | 陈际军 | Clamp type electric iron |
| CN103785919A (en) * | 2012-10-29 | 2014-05-14 | 何海兵 | Electric heating tongs for copper pipe welding |
| US9669481B1 (en) * | 2013-04-01 | 2017-06-06 | Raptor Equipment, Llc | Soldering tool |
| CN107297555A (en) * | 2017-06-30 | 2017-10-27 | 韩华新能源（启东）有限公司 | A kind of soldering appliance and welding method |
| CN209565679U (en) * | 2018-12-04 | 2019-11-01 | 卧龙电气集团股份有限公司 | A kind of cell polar ear directly welds locating piece |
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| Publication number | Publication date |
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| CN113042847B (en) | 2022-05-06 |
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