CN101996768A - Process method of large-current impact resistant electric capacitor - Google Patents
Process method of large-current impact resistant electric capacitor Download PDFInfo
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- CN101996768A CN101996768A CN2010102790637A CN201010279063A CN101996768A CN 101996768 A CN101996768 A CN 101996768A CN 2010102790637 A CN2010102790637 A CN 2010102790637A CN 201010279063 A CN201010279063 A CN 201010279063A CN 101996768 A CN101996768 A CN 101996768A
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- impregnation
- spot welding
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- cover plate
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Abstract
The invention relates to a process method of a large-current impact resistant electric capacitor, comprising the following steps of: winding a core wrap, electrically welding with laser, impregnating, assembling, ageing, testing and packaging. In the invention, a laser spot welding process is used for replacing the original cold pressing riveting process, that is, a laser device is used for fusing an aluminum guide line on an aluminum terminal of a cover plate so that the metal is fused and combined together. As a metal fusing method is adopted, the contact resistance of two members is close to zero so that the guide line can not be fused during operation and the service life of the capacitor is prolonged.
Description
Technical field
The present invention relates to a kind of process of capacitor of anti-heavy current impact, belong to the manufacturing field of capacitor.
Background technology
At present, along with the development of large power supply and frequency converter,, more and more higher to its anti-high current impulse withstanding capability as the aluminium electrolytic capacitor of filtering and energy storage, former cold-press process: adopt a pneumatic compression devices, the lead-in wire bar is colded pressing on the cover plate terminal, because two metals are physics contacts, there is contact resistance in its surface, (generally at 0.2-0.4m Ω), by big electric current the time, riveted joint place heating causes the anodal fusing when work of lead-in wire bar.
Summary of the invention
In order to overcome the defective that exists in the above-mentioned prior art, the invention provides a kind of process of capacitor of anti-heavy current impact, comprise the steps:
(1) the core winding around: aluminium foil, electrolytic paper, lead-in wire bar are wound into the core bag according to a certain order;
(2) laser electric welding: the core bag of winding and cover plate laser spot welding are in the same place;
(3) impregnation: the product of laser spot welding is placed on soaks in the pot, add the electrolyte impregnation;
(4) assembling: the core bag after the impregnation, put into aluminum hull, seal after the heat, make aluminum hull become a cylinder with cover plate for sealing;
(5) aging: energising;
(6) testing package.
What described laser spot welding adopted is the metal melting method.
Temperature in the described impregnation pot is 40-95 ℃, and pressure is 2-3 atmospheric pressure, and the time of impregnation is 12-48 hour.
The voltage of described energising is 1.05-1.2 times of rated voltage, and the ambient temperature of described energising is 20-85 ℃.
The invention provides a kind of capacitor of anti-heavy current impact, adopt laser spot welding technology to replace the former riveting process of colding pressing, promptly adopt laser equipment, aluminium matter lead-in wire bar is melted on the aluminium terminal of cover plate, combine after metal is melted, because employing is the metal melting method, the contact resistance that can be regarded as two parts approaches 0, thereby the lead-in wire bar can not be fused when work, prolonged the working life of capacitor.
Embodiment
Describe technical scheme of the present invention in detail below in conjunction with embodiment.
Embodiment
The invention provides a kind of capacitor of anti-heavy current impact, at first, aluminium foil, electrolytic paper, lead-in wire bar are wound into the core bag according to a certain order, adopt the core bag of winding metal melting method laser spot welding on the aluminium terminal of cover plate then, after being melted, metal combines, again the metal after melting being placed on temperature is that 40-95 ℃, pressure are in 2-3 the atmospheric impregnation pot, adds electrolyte impregnation 12-48 hour.Core bag after the impregnation being put into aluminum hull, seal after the heating, make aluminum hull become a cylinder with cover plate for sealing, is energising 4-18 hour under the condition of 20-85 in 1.05-1.2 times of rated voltage, temperature then, requires to test according to operation or work standard at last, installs again.
With the model for CD135 200V33000Uf is an example, 21 in sample
Claims (4)
1. the process of the capacitor of an anti-heavy current impact is characterized in that: comprise the steps:
(1) the core winding around: aluminium foil, electrolytic paper, lead-in wire bar are wound into the core bag according to a certain order;
(2) laser electric welding: the core bag of winding and cover plate laser spot welding are in the same place;
(3) impregnation: the product of laser spot welding is placed on soaks in the pot, add the electrolyte impregnation;
(4) assembling: the core bag after the impregnation is put into aluminum hull, seal after the heating, make aluminum hull become a cylinder with cover plate for sealing;
(5) aging: energising;
(6) testing package.
2. process according to claim 1 is characterized in that: what described laser spot welding adopted is the metal melting method.
3. process according to claim 1 is characterized in that: the temperature in the described impregnation pot is 40-95 ℃, and pressure is 2-3 atmospheric pressure, and the time of impregnation is 12-48 hour.
4. process according to claim 1 is characterized in that: the voltage of described energising is 1.05-1.2 times of rated voltage, and the ambient temperature of described energising is 20-85 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102790637A CN101996768A (en) | 2010-09-13 | 2010-09-13 | Process method of large-current impact resistant electric capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102790637A CN101996768A (en) | 2010-09-13 | 2010-09-13 | Process method of large-current impact resistant electric capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101996768A true CN101996768A (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102790637A Pending CN101996768A (en) | 2010-09-13 | 2010-09-13 | Process method of large-current impact resistant electric capacitor |
Country Status (1)
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| CN (1) | CN101996768A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509615A (en) * | 2011-10-28 | 2012-06-20 | 湖南艾华集团股份有限公司 | Aluminium electrolytic capacitor production process and automatic testing packaging machine |
| CN102522201A (en) * | 2011-12-19 | 2012-06-27 | 上海一点点电子科技有限公司 | Manufacturing method of bolt-type aluminum electrolytic capacitor |
| CN105491816A (en) * | 2016-02-04 | 2016-04-13 | 东莞立德精密工业有限公司 | Magnetic coil welding method |
| CN110676054A (en) * | 2019-09-25 | 2020-01-10 | 富之庆电子（深圳）有限公司 | Method for improving capacitor aging efficiency and inhibiting capacitor leakage from rising |
| CN110875147A (en) * | 2019-10-11 | 2020-03-10 | 深圳市兴创嘉技术有限公司 | Impregnation method of aluminum electrolytic capacitor core cladding |
| CN112735864A (en) * | 2020-11-30 | 2021-04-30 | 珠海格力新元电子有限公司 | Heat treatment method before assembly of chip capacitor assembly |
| CN115424865A (en) * | 2022-10-13 | 2022-12-02 | 中国振华(集团)新云电子元器件有限责任公司(国营第四三二六厂) | Capacitor and manufacturing method thereof |
-
2010
- 2010-09-13 CN CN2010102790637A patent/CN101996768A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509615A (en) * | 2011-10-28 | 2012-06-20 | 湖南艾华集团股份有限公司 | Aluminium electrolytic capacitor production process and automatic testing packaging machine |
| CN102522201A (en) * | 2011-12-19 | 2012-06-27 | 上海一点点电子科技有限公司 | Manufacturing method of bolt-type aluminum electrolytic capacitor |
| CN105491816A (en) * | 2016-02-04 | 2016-04-13 | 东莞立德精密工业有限公司 | Magnetic coil welding method |
| CN105491816B (en) * | 2016-02-04 | 2018-07-20 | 东莞立德精密工业有限公司 | Magnetic coil welding method |
| CN110676054A (en) * | 2019-09-25 | 2020-01-10 | 富之庆电子（深圳）有限公司 | Method for improving capacitor aging efficiency and inhibiting capacitor leakage from rising |
| CN110676054B (en) * | 2019-09-25 | 2021-06-29 | 富之庆电子（深圳）有限公司 | Method for improving capacitor aging efficiency and inhibiting capacitor leakage from rising |
| CN110875147A (en) * | 2019-10-11 | 2020-03-10 | 深圳市兴创嘉技术有限公司 | Impregnation method of aluminum electrolytic capacitor core cladding |
| CN110875147B (en) * | 2019-10-11 | 2021-10-26 | 深圳市兴创嘉技术有限公司 | Impregnation method of aluminum electrolytic capacitor core cladding |
| CN112735864A (en) * | 2020-11-30 | 2021-04-30 | 珠海格力新元电子有限公司 | Heat treatment method before assembly of chip capacitor assembly |
| CN115424865A (en) * | 2022-10-13 | 2022-12-02 | 中国振华(集团)新云电子元器件有限责任公司(国营第四三二六厂) | Capacitor and manufacturing method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110330 |