CN104772541B - The welding method of capacitor metal spraying end face and lead-in wire bonding strength can be increased - Google Patents
The welding method of capacitor metal spraying end face and lead-in wire bonding strength can be increased Download PDFInfo
- Publication number
- CN104772541B CN104772541B CN201510169563.8A CN201510169563A CN104772541B CN 104772541 B CN104772541 B CN 104772541B CN 201510169563 A CN201510169563 A CN 201510169563A CN 104772541 B CN104772541 B CN 104772541B
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- CN
- China
- Prior art keywords
- welding
- lead
- stripping head
- wire
- solder
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- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- 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
-
- 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
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention relates to a kind of welding method increasing capacitor metal spraying end face and lead-in wire bonding strength, the welding stripping head of lead-in wire front end is bent into formation leading portion welding stripping head and back segment welding stripping head；Leading portion welding stripping head is attached on the metal spraying end face of capacitor core group, and back segment welding stripping head is arranged according to lead-in wire lead direction；Alignment leading portion welding stripping head welds；Before the solder solidification of fusing, back segment welding stripping head is pushed in solder；Keep its position until solder solidification forms solder joint.Owing to the pulling force increase at least 50% that head front end has dogleg section, solder joint to bear is shelled in welding.And it is abundant with solder contact to go between, condenser loss angle reduces, reactive power reduces, and has reliability height, the advantage of length in service life.
Description
Technical field
The present invention relates to the welding method of a kind of capacitor metal spraying end face and lead-in wire, specifically one can
Increase the welding method of capacitor metal spraying end face and lead-in wire bonding strength.
Background technology
As shown in Figure 1, 2, pass through between upper and lower end metal spraying end face 2 and the lead-in wire 4 of capacitor core group 1
The welding stripping 41 of lead-in wire is welded by electric cautery fusing solder stick with metal spraying end face 2, forms solder joint 3
Reach interconnection function, thus draw two electrodes of capacitor.4 end portions that go between peel off lead wire insulation
Skin about 5～6mm, as welding stripping 41.This solder technology requires higher, and welding material typically uses
Φ 2mm (or Φ 2.5mm) stanniferous amount 60% active solder wire, electric cautery line ball must not surpass weld interval
Spending 2 seconds, weld interval is long, although can obtain bigger solder joint 3, but may destroy metal spraying end face
And scald metalized film, and causing that waste product occurs, and weld interval is too short, then solder joint is too small, and solder joint can hold
Pulling force less, go between when capacitor assembles and may come off because of pulling, usual spot size controls
5～8mm, solder joint height is not higher than 2mm.Owing to solder joint is little, when lead-in wire bears pulling force, solder with
Attachment surface between welding stripping head is vertical with direction of pull, easily produces detrusion because bearing shearing force,
Occurring loosening until coming off, thus the pulling force that solder joint is born is the highest, the pulling force that solder joint can hold is the most little
In 78.4N (8kg), the lead-in wire when capacitor assembles, it is possible to cause solder joint to occur loosening because of pulling, makes
Obtaining contact resistance to increase, and cause loss angle to increase, capacitor in use can increase because of loss angle
And generate heat, cause the initial failures such as open circuit, thus reduce service life.
Summary of the invention
It is an object of the invention to provide a kind of increases capacitor metal spraying end face and lead-in wire the welding of bonding strength
Method, the pulling force that the solder joint that can be significantly increased is born so that capacitor contact resistance reduces, reliably
Property improve, capacitor service life can be extended.
The step of welding method of the present invention is as follows:
(1) the welding stripping head of lead-in wire front end is bent into 80 °～the angle of 100 °, forms leading portion welding
Stripping head and back segment welding stripping head, the length of leading portion welding stripping head is 3～5mm；
(2) leading portion welding stripping head is attached on the metal spraying end face of capacitor core group, and by back segment welding stripping head
Arrange according to lead-in wire lead direction；
(3) alignment leading portion welding stripping head welds so that solder fusing is also deposited in leading portion welding stripping head
On；
(4) fusing solder solidification before, to leading portion welding stripping head end direction promote lead-in wire, will after
Section welding stripping head pushes in solder；
(5) lead-in wire and front and rear sections welding stripping head position are kept, until solder solidification forms solder joint.
Further, in step (1), leading portion welding shells the length of head 3～4mm.
Further, the bending angle described in step (1) is right angle.
Further, step (4) posterior segment welding stripping head pushes the middle part that position is solder.
The Advantageous Effects of the present invention is: owing to there are dogleg section, and bending part in welding stripping head front end
The forward and backward welding stripping head divided fully is wrapped up by solder, when lead-in wire bears pulling force, due to leading portion welding stripping
Head is vertical with direction of pull or the most vertical, and leading portion welding stripping capitiform is become to support by solder joint so that lead-in wire holds
The pulling force being subject to strengthens, and uses counterweight or swage block pull line, and solder joint at least can bear drawing of 118N (12kg)
Power and do not fall off, the more existing welding stripping head straight line welding increase at least 50% of the pulling force that bears.It addition,
The welding stripping head length more existing welding stripping head straight line welding being embedded in solder joint increases, and lead-in wire connects with solder
Touch fully, reduce the contact resistance between lead-in wire and capacitor core group so that condenser loss angle reduction,
Reactive power reduces, and capacitor can be avoided to cause the early failure phenomenas such as open circuit because self produces heating,
There is reliability height, the advantage of length in service life.
Accompanying drawing explanation
Fig. 1 is existing capacitor core group structural representation.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is Fundamentals of Welding schematic diagram of the present invention.
In figure, the implication of label symbol is as follows:
1-capacitor core group 2-metal spraying end face 3-solder joint 4-lead-in wire 41-welding stripping head 411-leading portion
Welding stripping head 412-back segment welding stripping head
Detailed description of the invention
Below in conjunction with the accompanying drawings, the technical scheme in the embodiment of the present invention is clearly and completely described.
Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.
Based on the embodiment in the present invention, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Welding method step of the present invention is as follows:
(1) the welding stripping 41 of 4 front ends that go between is bent into 80 °～the angle of 100 °, forms leading portion
Welding stripping 411 and back segment welding stripping 412, it is contemplated that increase stress, welding stripping 4 preferably bending
At a right angle, it is contemplated that solder joint 3 diameter 5～8mm, the length of leading portion welding stripping 411 preferably 3～5mm,
Preferably 3～4mm；
(2) leading portion welding is shelled on 411 metal spraying end faces 2 being attached to capacitor core group 1, and by back segment
Welding stripping 412 is arranged according to the lead direction of lead-in wire 4；
(3) alignment leading portion welding stripping 411 is welded so that solder fusing is also deposited in leading portion welding
In stripping 411；
(4) before the solder solidification of fusing, the end direction to leading portion welding stripping 411 promotes lead-in wire,
Back segment welding stripping 412 is pushed in solder, shown in Figure 3, before in Fig. 3, dotted portion is for promoting
Lead-in wire 4 position；
(5) lead-in wire 4 and front and rear sections welding stripping 411,412 position are kept, until solder solidification shape
Become solder joint 3.
For increasing the welding stripping head length being embedded in solder joint 3, the welding stripping of step (4) posterior segment as much as possible
412 push the middle part that position is solder.
Claims (4)
1. can increase the welding method of capacitor metal spraying end face and lead-in wire bonding strength, it is characterized in that including as
Lower step:
(1) the welding stripping head of lead-in wire (4) front end is bent into 80 °～the angle of 100 °, forms leading portion and weld
Connecing stripping head (411) and back segment welding stripping head (412), the length of leading portion welding stripping head (411) is 3～5mm；
(2) leading portion welding stripping head (411) is attached on the metal spraying end face (2) of capacitor core group, and by back segment
Welding stripping head (412) is arranged according to lead-in wire (4) lead direction；
(3) alignment leading portion welding stripping head (411) welds so that solder fusing is also deposited in leading portion weldering
Connect in stripping head (411)；
(4) before the solder solidification of fusing, lead-in wire is promoted to the end direction of leading portion welding stripping head (411)
(4), back segment welding stripping head (412) is pushed in solder；
(5) lead-in wire (4) and front and rear sections welding stripping head (411,412) position are kept, until solder solidification
Form solder joint (3).
The most according to claim 1 increase capacitor metal spraying end face and lead-in wire the welding of bonding strength
Method, is characterized in that: in step (1), the length of leading portion welding stripping head (411) is 3～4mm.
The most according to claim 1 increase capacitor metal spraying end face and lead-in wire the welding of bonding strength
Method, is characterized in that: the angle described in step (1) is right angle.
The most according to claim 1 increase capacitor metal spraying end face and lead-in wire the welding of bonding strength
Method, is characterized in that: step (4) posterior segment welding stripping head (412) pushes the pars intermedia that position is solder
Position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510169563.8A CN104772541B (en) | 2015-04-10 | 2015-04-10 | The welding method of capacitor metal spraying end face and lead-in wire bonding strength can be increased |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510169563.8A CN104772541B (en) | 2015-04-10 | 2015-04-10 | The welding method of capacitor metal spraying end face and lead-in wire bonding strength can be increased |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104772541A CN104772541A (en) | 2015-07-15 |
| CN104772541B true CN104772541B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510169563.8A Active CN104772541B (en) | 2015-04-10 | 2015-04-10 | The welding method of capacitor metal spraying end face and lead-in wire bonding strength can be increased |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115488480A (en) * | 2022-08-23 | 2022-12-20 | 安徽铜峰电子股份有限公司 | Automatic welding machine transformation method and butt welding method of welding machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03159221A (en) * | 1989-11-17 | 1991-07-09 | Elna Co Ltd | Electric two layered capacitor |
| US6430029B1 (en) * | 2000-06-07 | 2002-08-06 | Icotron Industria De Componentes Electronicos Ltda | Capacitor terminal |
| CN2498752Y (en) * | 2001-08-22 | 2002-07-03 | 卢朝栏 | Connecting structure of electric conductive sheet and wire |
| CN1589093A (en) * | 2004-08-13 | 2005-03-02 | 广州金升阳科技有限公司 | Method for improving fine enamelled wire spot welding strengh in spot welding |
| JP4537370B2 (en) * | 2006-12-04 | 2010-09-01 | 日立オートモティブシステムズ株式会社 | Electronic equipment |
| CN101996729A (en) * | 2009-08-21 | 2011-03-30 | 胜美达电机（香港）有限公司 | Terminal structure of coil product and manufacturing method thereof |
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2015
- 2015-04-10 CN CN201510169563.8A patent/CN104772541B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104772541A (en) | 2015-07-15 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Welding method for increasing the connection strength between capacitor gold sprayed end face and lead Effective date of registration: 20211221 Granted publication date: 20160928 Pledgee: Huishang Bank Co.,Ltd. Tongling Beijing Road sub branch Pledgor: ANHUI TONGFENG ELECTRONICS Co.,Ltd. Registration number: Y2021340000037 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230116 Granted publication date: 20160928 Pledgee: Huishang Bank Co.,Ltd. Tongling Beijing Road sub branch Pledgor: ANHUI TONGFENG ELECTRONICS Co.,Ltd. Registration number: Y2021340000037 |