CN104708187A - Copper sheet flow diversion welding design and method for welding copper sheet and battery nickel top cover - Google Patents
Copper sheet flow diversion welding design and method for welding copper sheet and battery nickel top cover Download PDFInfo
- Publication number
- CN104708187A CN104708187A CN201510058984.3A CN201510058984A CN104708187A CN 104708187 A CN104708187 A CN 104708187A CN 201510058984 A CN201510058984 A CN 201510058984A CN 104708187 A CN104708187 A CN 104708187A
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- China
- Prior art keywords
- welding
- copper sheet
- top cover
- nickel top
- scope
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 73
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 55
- 239000010949 copper Substances 0.000 title claims abstract description 55
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000679 solder Inorganic materials 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 6
- 238000005476 soldering Methods 0.000 abstract description 4
- 230000001680 brushing effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 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 8
- 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 8
- 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 8
- 238000004146 energy storage Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/12—Copper or alloys thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The invention discloses a copper sheet flow diversion welding design and a method for welding a copper sheet and a battery nickel top cover. A flow diversion trench is added at the welding position of the copper sheet, so that current passes through a loop formed by the lower nickel top cover and an electrode; alternating-current resistance welding is adopted, it is ensured that a molten core can be formed by the copper sheet and the nickel top cover, and the welding process is stable. It is ensured that the copper sheet and the battery nickel top cover can be directly welded, no soldering paste and other scaling powder need to be brushed for auxiliary welding, no cold solder joint is formed, no person is needed for brushing the soldering paste, the production efficiency is improved, cold solder joints are avoided, the product quality is improved, and the soldering paste purchasing cost is saved.
Description
Technical field
The present invention relates to lithium ion battery electric resistance welding and connect field, be specially a kind of copper sheet water conservancy diversion weldering design and the welding method with battery nickel top cover.
Background technology
At present, the electric resistance welding mode that copper sheet and battery nickel top cover adopt is generally energy storage type direct current welding resistance, and its performance is as follows:
Owing to needing the disposable release of energy that stores in electric capacity to welding circuit, exporting energy adjustment leans on the rechargeable energy of control capacitance to complete, output current is pulse current, welding current and time can not be regulated by Electronic Control, therefore instability is welded, copper sheet needs the scaling powders such as brush solder(ing) paste to weld, and has rosin joint to occur.
The energy storage D.C. resistance soldering method of above-mentioned employing, due to upper strata copper sheet good conductivity, and lower floor's nickel top cover poorly conductive, during welding, electric current flows through from electrode-copper sheet-electrode substantially, is difficult to flow through lower floor's nickel top cover, causes heat only to act on copper sheet surface, therefore copper sheet and nickel top cover can not form nugget, welding process is all unstable, needs the scaling powder auxiliary weldings such as brush solder(ing) paste, has rosin joint to occur.
Therefore the water conservancy diversion weldering design finding a kind of copper sheet is needed, and the welding method of a kind of copper sheet and battery nickel top cover, make electric current by forming loop between nickel top cover below and electrode, ensure that copper sheet and nickel top cover can form nugget, welding process is stablized, copper sheet does not need the scaling powders such as brush solder(ing) paste, directly can weld, occur without rosin joint with nickel top cover.
Summary of the invention
The object of this invention is to provide a kind of water conservancy diversion weldering design of copper sheet and the welding method with battery nickel top cover, to solve prior art Problems existing.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of water conservancy diversion weldering design of copper sheet, increases a guiding gutter in the welding position of copper sheet.
Preferably, the width of guiding gutter is 0.5 ~ 2mm.
A welding method for copper sheet and battery nickel top cover, adopts AC resistance welding, comprises following welding step:
(1), welding parameter is adjusted, according to concrete equipment situation and material requirements, ac spot welding machine is adjusted to suitable welding parameter, setting weldingvoltage is within the scope of 100-150v, weld interval is within the scope of 0.02 ~ 0.1s, welding pressure is within the scope of 0.2 ~ 0.5Mpa, squeeze time is within the scope of 0.02 ~ 0.1s, and the dwell time is within the scope of 0.1 ~ 0.2s;
(2), AC welding, copper sheet is placed on above battery nickel top cover, open AC welding set, by ac spot welding machine by the also spot welding together of two capillary syringe needles, at copper brace and lithium ionic cell nickel top cover joint place spot welding secondary arranged side by side, totally four points, postwelding hand drags copper sheet, checks solder joint firmness.
The invention provides a kind of copper sheet, between copper sheet two solder joints, increasing a guiding gutter, making electric current by forming loop between nickel top cover below and electrode, ensure that the electric resistance welding of copper sheet and nickel top cover can form nugget; Adopt a kind of AC resistance welding method, due to the voltage of AC welding and the time adjustable, ensure that copper sheet can directly weld with copper top cover, occur without rosin joint.
The present invention can guarantee that lithium ion battery stainless steel top cover can directly be welded with copper sheet, does not need the scaling powder auxiliary weldings such as brush solder(ing) paste, occurs without rosin joint, saves brush solder(ing) paste personnel, enhances productivity; Avoid rosin joint, improve the quality of products; Save solder(ing) paste purchase cost.
Accompanying drawing explanation
Fig. 1 is the copper sheet water conservancy diversion weldering design diagram of an embodiment.
Wherein: 1, copper sheet, 2, guiding gutter, 3. solder joint.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As shown in Figure 1, the present invention discloses a kind of water conservancy diversion weldering design of copper sheet, and increase a guiding gutter 2 in the welding position of copper sheet 1, the width of guiding gutter 2 is 0.5 ~ 2mm, and guiding gutter 2 is arranged on the welding center of copper sheet.
A welding method for copper sheet and battery nickel top cover, adopts AC resistance welding, comprises following welding step:
(1), welding parameter is adjusted, according to concrete equipment situation and material requirements, ac spot welding machine is adjusted to suitable welding parameter, setting weldingvoltage is within the scope of 100-150v, weld interval is within the scope of 0.02 ~ 0.1s, welding pressure is within the scope of 0.2 ~ 0.5Mpa, squeeze time is within the scope of 0.02 ~ 0.1s, and the dwell time is within the scope of 0.1 ~ 0.2s;
(2), AC welding, copper sheet is placed on above battery nickel top cover, open AC welding set, by ac spot welding machine by the also spot welding together of two capillary syringe needles, at copper brace and lithium ionic cell nickel top cover joint place spot welding secondary arranged side by side, totally four points, postwelding hand drags copper sheet, checks solder joint firmness.
The invention discloses a kind of copper sheet water conservancy diversion weldering design and the welding method with battery nickel top cover, a guiding gutter is increased in the welding position of copper sheet, make electric current by forming loop between nickel top cover below and electrode, employing AC resistance welds, ensure that copper sheet and nickel top cover can form nugget, welding process is stablized, the present invention can guarantee that copper sheet can directly weld with battery nickel top cover, do not need the scaling powder auxiliary weldings such as brush solder(ing) paste, occur without rosin joint, save brush solder(ing) paste personnel, enhance productivity, avoid rosin joint, improve the quality of products, save solder(ing) paste purchase cost.
Past, we did not have guiding gutter by the copper sheet of welding, what welding method adopted is energy storage welding, need to be coated with solder(ing) paste auxiliary welding always, the design of guiding gutter is increased now by copper sheet, and adopt interchange weldering to replace stored energy welding, beat all discovery copper sheet and nickel top cover can directly weld, and do not need to be coated with solder(ing) paste, and this will save considerable material cost.
Above content is only to structure example of the present invention and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the structure of invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (3)
1. the water conservancy diversion weldering design of a copper sheet, is characterized in that: increase a guiding gutter in the welding position of copper sheet.
2. copper sheet water conservancy diversion weldering design according to claim 1, is characterized in that: the width of guiding gutter is 0.5 ~ 2mm.
3. a welding method for copper sheet and battery nickel top cover, is characterized in that: adopt AC resistance welding, comprise following welding step:
(1), welding parameter is adjusted, according to concrete equipment situation and material requirements, ac spot welding machine is adjusted to suitable welding parameter, setting weldingvoltage is within the scope of 100-150v, weld interval is within the scope of 0.02 ~ 0.1s, welding pressure is within the scope of 0.2 ~ 0.5Mpa, squeeze time is within the scope of 0.02 ~ 0.1s, and the dwell time is within the scope of 0.1 ~ 0.2s;
(2), AC welding, copper sheet is placed on above battery nickel top cover, open AC welding set, by ac spot welding machine by the also spot welding together of two capillary syringe needles, at copper brace and lithium ionic cell nickel top cover joint place spot welding secondary arranged side by side, totally four points, postwelding hand drags copper sheet, checks solder joint firmness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058984.3A CN104708187A (en) | 2015-02-04 | 2015-02-04 | Copper sheet flow diversion welding design and method for welding copper sheet and battery nickel top cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058984.3A CN104708187A (en) | 2015-02-04 | 2015-02-04 | Copper sheet flow diversion welding design and method for welding copper sheet and battery nickel top cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104708187A true CN104708187A (en) | 2015-06-17 |
Family
ID=53408189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510058984.3A Pending CN104708187A (en) | 2015-02-04 | 2015-02-04 | Copper sheet flow diversion welding design and method for welding copper sheet and battery nickel top cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104708187A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1757138A (en) * | 2003-01-23 | 2006-04-05 | 索尼株式会社 | Lead terminal and power supply device |
| CN201536123U (en) * | 2009-08-28 | 2010-07-28 | 天津力神特种电源科技有限公司 | Battery nickel plate and battery group |
| US20120031645A1 (en) * | 2010-08-03 | 2012-02-09 | Steven Tartaglia | System, method and apparatus for connecting battery cells |
| CN202219372U (en) * | 2011-08-18 | 2012-05-16 | 天津力神电池股份有限公司 | Battery pack spot welding apparatus |
| CN203649634U (en) * | 2013-11-25 | 2014-06-18 | 贵州航天电源科技有限公司 | Lithium ion battery cathode lug spot welding device rapid and reliable in use |
| CN104625384A (en) * | 2015-02-04 | 2015-05-20 | 合肥国轩高科动力能源股份公司 | Copper sheet flow guiding welding design and welding method for battery copper top cover |
-
2015
- 2015-02-04 CN CN201510058984.3A patent/CN104708187A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1757138A (en) * | 2003-01-23 | 2006-04-05 | 索尼株式会社 | Lead terminal and power supply device |
| CN201536123U (en) * | 2009-08-28 | 2010-07-28 | 天津力神特种电源科技有限公司 | Battery nickel plate and battery group |
| US20120031645A1 (en) * | 2010-08-03 | 2012-02-09 | Steven Tartaglia | System, method and apparatus for connecting battery cells |
| CN202219372U (en) * | 2011-08-18 | 2012-05-16 | 天津力神电池股份有限公司 | Battery pack spot welding apparatus |
| CN203649634U (en) * | 2013-11-25 | 2014-06-18 | 贵州航天电源科技有限公司 | Lithium ion battery cathode lug spot welding device rapid and reliable in use |
| CN104625384A (en) * | 2015-02-04 | 2015-05-20 | 合肥国轩高科动力能源股份公司 | Copper sheet flow guiding welding design and welding method for battery copper top cover |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230000 Yaohai Industrial Zone, Hefei New District, Anhui, No. D weft Road, No. 7 Applicant after: Gotion High-tech Co., Ltd. Address before: 230000 Yaohai Industrial Park, Anhui, Hefei No. D weft Road, No. 7 Applicant before: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. |
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| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150617 |