CN105328320A - Electric resistance welding method suitable for busbar - Google Patents
Electric resistance welding method suitable for busbar Download PDFInfo
- Publication number
- CN105328320A CN105328320A CN201510877340.7A CN201510877340A CN105328320A CN 105328320 A CN105328320 A CN 105328320A CN 201510877340 A CN201510877340 A CN 201510877340A CN 105328320 A CN105328320 A CN 105328320A
- Authority
- CN
- China
- Prior art keywords
- bar
- bus
- welding
- lug
- electric resistance
- 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.)
- Granted
Links
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
- B23K11/02—Pressure butt 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
-
- 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
- B23K11/04—Flash butt 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/34—Preliminary treatment
-
- 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
- B23K2101/38—Conductors
Abstract
The invention provides an electric resistance welding method suitable for a busbar and relates to the field of battery production methods. The method implements welding by use of resistance heat generated by a current passing through contact surfaces of the busbar and tabs and neighboring regions. The electric resistance welding method suitable for the busbar is capable of quickly realizing once welding on a plurality of tabs on the same busbar, such that a welding speed is increased.
Description
Technical field
The present invention relates to cell production method field, particularly relate to a kind of electric resistance welding method being applicable to bus-bar.
Background technology
Existing bus-bar welding mainly makes in two ways, and first kind of way is rifle weldering, and the second is melting welding; Wherein first method because there is environmental protection, security problems does not re-use, and second method needs the welding temperature of use about 500 DEG C, and the power consumption of this method is huge, but efficiency is very low; Also have a kind of welding method to be electric resistance welding when welding other objects in prior art, the method for existing electric resistance welding mainly adopts spot welding, and the electric welding head of electric welding machine directly to weld with the junction of lug bus-bar.
Summary of the invention
The invention provides a kind of electric resistance welding method being applicable to bus-bar for the deficiencies in the prior art part, the method can once be welded the multiple lugs on same bus-bar fast, improves speed of welding.
Technical scheme of the present invention is to provide a kind of electric resistance welding method being applicable to bus-bar, and the resistance heat that the method utilizes electric current to be produced by bus-bar and contact surface and the adjacent domain of lug welds, and comprises the following steps:
Step one, carries out solder side forming processes by described lug with the contact surface of described bus-bar, on described bus-bar with the contact surface of described lug on offer with described lug welding groove one to one;
Step 2, connects corresponding with described welding groove for the welding ends of described lug;
Step 3, carries out displacement by the position of relatively described for described bus-bar lug, is denoted as the first displacement;
Step 4, carries out energising butt welding or flash welding to form nugget to the contact surface of described bus-bar and described lug and adjacent domain;
Step 5, power-off is forged and pressed, and make nugget crystallisation by cooling under pressure continuation effect form solder joint, forging and stamping distance is denoted as the second displacement.
As preferably of the present invention, in described step one, described solder side forming processes comprises the following steps:
First step, is fixed all described lug erecting and welding position of welding required on a described bus-bar;
Second step, is undertaken cutting to form butt welding portion by the welding ends of the described lug be fixed.
As preferably of the present invention, described butt welding portion is smooth plane.Arrangement arranges the uniformity that can promote butt welding portion in a planar manner, guarantees the success rate of once welding.
As preferably of the present invention, the described orthogonal dentation in butt welding portion.Arranging butt welding portion to ensure in the process of extruding rectangular teeth with the arrangement of rectangular teeth can fully and busbar contact and eliminate the possibility of rosin joint.
As preferably of the present invention, in described step 2, by the mode of extruding, displacement is carried out in the position of relatively described for described bus-bar lug.
As preferably of the present invention, the first described displacement is 1mm ~ 2mm.
As preferably of the present invention, in described step 4, energising butt welding is carried out to the contact surface of described bus-bar and described lug and adjacent domain.
As preferably of the present invention, in described step 4, energising flash welding is carried out to the contact surface of described bus-bar and described lug and adjacent domain.
As preferably of the present invention, the second described displacement is 0.5mm ~ 2mm.
The present invention has following beneficial effect:
The present invention has fast and reliable advantage.
Accompanying drawing explanation
Fig. 1 is the bus-bar of the embodiment of the present invention and the first embodiment of lug;
Fig. 2 is the bus-bar of the embodiment of the present invention and the second embodiment of lug.
In figure: 1-bus-bar; 2-lug; 3-welding groove; 4-butt welding portion.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1 to Figure 2, the resistance heat that the present embodiment utilizes electric current to be produced by bus-bar 1 and contact surface and the adjacent domain of lug 2 welds, and comprises the following steps:
Step one, carries out solder side forming processes by lug 2 with the contact surface of bus-bar 1, on bus-bar 1 with the contact surface of lug 2 on offer with lug 2 welding groove 3 one to one;
Step 2, connects corresponding with welding groove 3 for the welding ends of lug 2;
Step 3, carries out displacement by the position of relative for bus-bar 1 lug 2, is denoted as the first displacement;
Step 4, carries out energising butt welding or flash welding to form nugget to the contact surface of bus-bar 1 and lug 2 and adjacent domain;
Step 5, power-off is forged and pressed, and make nugget crystallisation by cooling under pressure continuation effect form solder joint, forging and stamping distance is denoted as the second displacement.
By the mode of extruding, displacement is carried out in the position of relative for bus-bar 1 lug 2 in the present embodiment step 2.First displacement is 1mm ~ 2mm.Second displacement is 0.5mm ~ 2mm.
As shown in Figure 1 to Figure 2, in the present embodiment step one, solder side forming processes comprises the following steps:
First step, is fixed all lugs 2 erecting and welding position of welding required on a bus-bar 1;
Second step, is undertaken cutting to form butt welding portion 4 by the welding ends of the lug 2 be fixed.
As shown in Figure 1, the first embodiment in the present embodiment butt welding portion 4 is smooth plane.In step 4, energising butt welding is carried out to the contact surface of bus-bar 1 and lug 2 and adjacent domain.
As shown in Figure 2, the second embodiment in the present embodiment butt welding portion 4 is the orthogonal dentation in butt welding portion 4.In step 4, energising flash welding is carried out to the contact surface of bus-bar 1 and lug 2 and adjacent domain.
In step 3, pressing method has two, and first is can by bus-bar 1 toward the extruding of lug 2 direction when welding, and carry out the homogeneous welding of multiple lug 2 by once extruding rear direct-electrifying, efficiency is very high; Second for lug 2 is extruded to bus-bar 1 one by one, single complete extruding after to be energized welding, although this method efficiency is high not as good as first method, yield rate is higher than first method.
Embodiment recited above is only be described the preferred embodiment of the present invention, not limits the spirit and scope of the present invention.Under the prerequisite not departing from design concept of the present invention; the various modification that this area ordinary person makes technical scheme of the present invention and improvement; all should drop into protection scope of the present invention, the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (9)
1. be applicable to an electric resistance welding method for bus-bar (1), it is characterized in that, the resistance heat that the method utilizes electric current to be produced by bus-bar (1) and contact surface and the adjacent domain of lug (2) welds, and comprises the following steps:
Step one, carries out solder side forming processes by upper for described lug (2) with the contact surface of described bus-bar (1), described bus-bar (1) upper with the contact surface of described lug (2) on offer with described lug (2) welding groove (3) one to one;
Step 2, connects corresponding with described welding groove (3) for the welding ends of described lug (2);
Step 3, carries out displacement by the position of relatively described for described bus-bar (1) lug (2), is denoted as the first displacement;
Step 4, carries out energising butt welding or flash welding to form nugget to the contact surface of described bus-bar (1) and described lug (2) and adjacent domain;
Step 5, power-off is forged and pressed, and make nugget crystallisation by cooling under pressure continuation effect form solder joint, forging and stamping distance is denoted as the second displacement.
2. one according to claim 1 is applicable to the electric resistance welding method of bus-bar (1), it is characterized in that: in described step one, and described solder side forming processes comprises the following steps:
First step, is fixed all described lug (2) the erecting and welding position of upper for a described bus-bar (1) required welding;
Second step, is undertaken cutting to form butt welding portion (4) by the welding ends of the described lug (2) be fixed.
3. one according to claim 2 is applicable to the electric resistance welding method of bus-bar (1), it is characterized in that: described butt welding portion (4) is smooth plane.
4. one according to claim 2 is applicable to the electric resistance welding method of bus-bar (1), it is characterized in that: described butt welding portion (4) orthogonal dentation.
5. one according to claim 1 is applicable to the electric resistance welding method of bus-bar (1), it is characterized in that: by the mode of extruding, displacement is carried out in the position of relatively described for described bus-bar (1) lug (2) in described step 2.
6. one according to claim 1 is applicable to the electric resistance welding method of bus-bar (1), it is characterized in that: the first described displacement is 1mm ~ 2mm.
7. one according to claim 3 is applicable to the electric resistance welding method of bus-bar (1), it is characterized in that: carry out energising butt welding to the contact surface of described bus-bar (1) and described lug (2) and adjacent domain in described step 4.
8. one according to claim 4 is applicable to the electric resistance welding method of bus-bar (1), it is characterized in that: carry out energising flash welding to the contact surface of described bus-bar (1) and described lug (2) and adjacent domain in described step 4.
9. one according to claim 1 is applicable to the electric resistance welding method of bus-bar (1), it is characterized in that: the second described displacement is 0.5mm ~ 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877340.7A CN105328320B (en) | 2015-12-04 | 2015-12-04 | A kind of electric resistance welding method suitable for bus-bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877340.7A CN105328320B (en) | 2015-12-04 | 2015-12-04 | A kind of electric resistance welding method suitable for bus-bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105328320A true CN105328320A (en) | 2016-02-17 |
| CN105328320B CN105328320B (en) | 2018-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510877340.7A Active CN105328320B (en) | 2015-12-04 | 2015-12-04 | A kind of electric resistance welding method suitable for bus-bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN105328320B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735953A (en) * | 2016-12-06 | 2017-05-31 | 浙江超威创元实业有限公司 | The indirect welding mechanism and its welding method of a kind of lithium ion battery |
| CN107611329A (en) * | 2017-09-18 | 2018-01-19 | 华霆（合肥）动力技术有限公司 | Battery welding device and battery modules |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2131209Y (en) * | 1992-05-07 | 1993-04-28 | 建阳蓄电池厂科学技术协会 | Copper-implanting structure for wall-through welding of lead-accumulator |
| JPH11285836A (en) * | 1998-03-31 | 1999-10-19 | Kanai Hiroaki | Method and equipment for heating pressure welding of wire like body |
| JP2004265610A (en) * | 2003-01-23 | 2004-09-24 | Sony Corp | Lead terminal and power supply device |
| CN101972887A (en) * | 2010-09-26 | 2011-02-16 | 上海三星广电电子器件有限公司 | Spot welding method used for two electrodes and nickel sheet of battery cell |
| CN102544421A (en) * | 2012-01-18 | 2012-07-04 | 浙江海悦自动化机械设备有限公司 | Cast-weld fixture for storage battery |
| CN202633456U (en) * | 2012-05-30 | 2012-12-26 | 隋明奎 | Single-row type lead covered copper plate grid storage battery |
-
2015
- 2015-12-04 CN CN201510877340.7A patent/CN105328320B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2131209Y (en) * | 1992-05-07 | 1993-04-28 | 建阳蓄电池厂科学技术协会 | Copper-implanting structure for wall-through welding of lead-accumulator |
| JPH11285836A (en) * | 1998-03-31 | 1999-10-19 | Kanai Hiroaki | Method and equipment for heating pressure welding of wire like body |
| JP2004265610A (en) * | 2003-01-23 | 2004-09-24 | Sony Corp | Lead terminal and power supply device |
| CN101972887A (en) * | 2010-09-26 | 2011-02-16 | 上海三星广电电子器件有限公司 | Spot welding method used for two electrodes and nickel sheet of battery cell |
| CN102544421A (en) * | 2012-01-18 | 2012-07-04 | 浙江海悦自动化机械设备有限公司 | Cast-weld fixture for storage battery |
| CN202633456U (en) * | 2012-05-30 | 2012-12-26 | 隋明奎 | Single-row type lead covered copper plate grid storage battery |
Non-Patent Citations (1)
| Title |
|---|
| 中国机械工程学会焊接学会: "《焊接手册（第一卷 焊接方法及设备 第3版）》", 31 January 2008, 机械工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735953A (en) * | 2016-12-06 | 2017-05-31 | 浙江超威创元实业有限公司 | The indirect welding mechanism and its welding method of a kind of lithium ion battery |
| CN107611329A (en) * | 2017-09-18 | 2018-01-19 | 华霆（合肥）动力技术有限公司 | Battery welding device and battery modules |
| CN107611329B (en) * | 2017-09-18 | 2024-03-08 | 华霆（合肥）动力技术有限公司 | Battery welding device and battery module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105328320B (en) | 2018-02-16 |
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