CN102270537A - Manufacturing method for reducing equivalent series impedance of screw terminal aluminum electrolytic capacitor - Google Patents
Manufacturing method for reducing equivalent series impedance of screw terminal aluminum electrolytic capacitor Download PDFInfo
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- CN102270537A CN102270537A CN 201110111143 CN201110111143A CN102270537A CN 102270537 A CN102270537 A CN 102270537A CN 201110111143 CN201110111143 CN 201110111143 CN 201110111143 A CN201110111143 A CN 201110111143A CN 102270537 A CN102270537 A CN 102270537A
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- electrolytic capacitor
- anode foil
- equivalent series
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Abstract
The invention discloses a manufacturing method for reducing the equivalent series impedance of an aluminum electrolytic capacitor. The method comprises the following steps of: riveting a guide foil of a core with an anode foil and a cathode foil which are arranged on a cover board, placing the core in an aluminum shell and compacting and fastening, and loading a seal ring onto the cover board, wherein during the riveted joint of the cathode foil and the guide foil, a lining cathode foil is adopted to rivet the cathode foil on both the front and the back surfaces of the guide foil. According to the manufacturing method for reducing the equivalent series impedance of the aluminum electrolytic capacitor, provided by the invention, based on the riveted joint of the guide foil and the cathode foil in the prior art, the lining cathode foil is adopted to rivet the cathode foil on both the front and the back surfaces of the guide foil, so as to reduce the riveting impedance of the cathode foil and improve performances and service life of products.
Description
Technical field
The present invention relates to a kind of aluminium electrolytic capacitor manufacture method, relate in particular to a kind of aluminium electrolytic capacitor manufacture method that reduces equivalent series resistance.
Background technology
The advantage of screw bolt-type aluminium electrolytic capacitor is that capacity is big, so generally use extensively in fields such as power supply, frequency converter, electric welding machine, wind power generations.Shortcomings such as but aluminium electrolytic capacitor also has leakage current big, and loss is big have influenced the performance of aluminium electrolytic capacitor.And one of the principal element that influences the loss size of aluminium electrolytic capacitor is exactly an equivalent series resistance.Equivalent series resistance comprises: lead paper tinsel and cathode foil the riveted joint impedance, lead paper tinsel and anode foil the riveted joint impedance, lead the riveted joint impedance of paper tinsel and cover plate terminal.At present, in the production technology of existing aluminium electrolytic capacitor,, in the riveted joint of leading paper tinsel and cover plate terminal, use laser welding process to reduce impedance for riveting process.General riveted joint impedance is between 0.01m Ω～0.03m Ω.In cathode foil riveted joint process, adopt the mode that increases the riveting point to reduce impedance, generally rivet impedance between 0.5m Ω～0.8m Ω.And the riveted joint of anode foil, as shown in Figure 1, because negative pole itself is thinner, require than higher for riveting process, cause anode foil 2 bigger with the riveted joint impedance ratio of leading paper tinsel 1, general riveted joint impedance so the riveting process of anode foil is the key of impedance that influence equivalent series of aluminium electrolytic capacitor, is necessary the clinching method that has anode foil in the aluminium electrolytic capacitor manufacture method now is improved between 1.2m Ω～1.6m Ω.
Summary of the invention
Technical problem to be solved by this invention provides a kind of aluminium electrolytic capacitor manufacture method that reduces equivalent series resistance, improves the performance and the life-span of product, and does not influence the cost and the volume of product.
The present invention solves the problems of the technologies described above the technical scheme that adopts to provide a kind of aluminium electrolytic capacitor manufacture method that reduces equivalent series resistance, comprises the cathode foil and the anode foil led on paper tinsel and the cover plate of core bag are riveted; The core bag is put into aluminum hull and be fixed; On the cover board add sealing ring subsequently and seal, wherein, anode foil with lead paper tinsel when riveted joint, adopts a pad anode foil to make to lead the positive and reverse side of paper tinsel all to rivet anode foil.
Above-mentioned aluminium electrolytic capacitor manufacture method, wherein, described pad anode foil thickness is about 60um, width is 80% of a coiling anode foil.
The present invention contrasts prior art following beneficial effect: the aluminium electrolytic capacitor manufacture method of reduction equivalent series resistance provided by the invention, on the basis of the riveted joint of just leading paper tinsel and anode foil originally, adopted the anode foil of a pad to make to lead that paper tinsel is positive has all riveted anode foil with reverse side, reduce anode foil riveted joint impedance, thus the performance and the life-span of improving product.
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Description of drawings
Fig. 1 is existing aluminium electrolytic capacitor cathode foil riveted joint schematic diagram;
Fig. 2 is aluminium electrolytic capacitor cathode foil riveted joint schematic diagram of the present invention.
Among the figure:
1 leads paper tinsel 2 anode foil 3 pad anode foil
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 2 is aluminium electrolytic capacitor cathode foil riveted joint schematic diagram of the present invention.
See also Fig. 2, the aluminium electrolytic capacitor manufacture method of reduction equivalent series resistance provided by the invention comprises the paper tinsel 1 of leading of core bag is riveted with cathode foil and anode foil 2 on the cover plate; The core bag is put into aluminum hull and be fixed; On the cover board add sealing ring subsequently and seal, wherein, when leading paper tinsel 1 riveted joint, adopts a pad anode foil 3 to make to lead the positive and reverse side of paper tinsel all to rivet anode foil in anode foil 2.
The present invention has adopted a pad anode foil 3 to make to lead the positive and reverse side of paper tinsel 1 to rivet anode foil on the basis of the riveted joint of originally just leading paper tinsel and anode foil.Because pad anode foil 3 is smaller, the thickness of general pad anode foil 3 is about 60um, and width is 80% of the negative paper tinsel of reeling, and anode foil itself is thinner, and price is also relatively cheap, so this technology can not influence volume and the cost that increases product.Advantage of the present invention is exactly in performance and the life-span that can significantly improve product, and does not influence the cost and the volume of product, and operation implements than being easier to as long as change manufacture craft down a little.
Find that through overtesting this technology riveted joint impedance has obtained very big reducing, and between original 1.2m Ω～1.6m Ω, is reduced between 0.3 m Ω～0.7 m Ω.The riveted joint impedance of anode foil even be lower than the riveted joint impedance of cathode foil, and do not influence the cost and the volume of product.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (2)
1. an aluminium electrolytic capacitor manufacture method that reduces equivalent series resistance comprises the paper tinsel (1) of leading of core bag is riveted with cathode foil and anode foil (2) on the cover plate; The core bag is put into aluminum hull and be fixed; On the cover board add sealing ring subsequently and seal, it is characterized in that, anode foil (2) with lead paper tinsel (1) when riveted joint, adopts a pad anode foil (3) to make to lead the positive and reverse side of paper tinsel all to rivet anode foil.
2. aluminium electrolytic capacitor manufacture method as claimed in claim 1 is characterized in that, described pad anode foil (3) thickness is about 60um, and width is 80% of a coiling anode foil (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110111143 CN102270537A (en) | 2011-05-02 | 2011-05-02 | Manufacturing method for reducing equivalent series impedance of screw terminal aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110111143 CN102270537A (en) | 2011-05-02 | 2011-05-02 | Manufacturing method for reducing equivalent series impedance of screw terminal aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102270537A true CN102270537A (en) | 2011-12-07 |
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ID=45052789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110111143 Pending CN102270537A (en) | 2011-05-02 | 2011-05-02 | Manufacturing method for reducing equivalent series impedance of screw terminal aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102270537A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030039093A1 (en) * | 2001-07-30 | 2003-02-27 | Kazuo Tadanobu | Solid electrolytic capacitor and its manufacturing method |
| CN1595564A (en) * | 2004-06-04 | 2005-03-16 | 王安安 | An aluminum electrolytic capacitor and method for manufacturing same |
| CN201138613Y (en) * | 2007-08-21 | 2008-10-22 | 南通江海电容器有限公司 | Aluminium electrolysis capacitor |
| CN101604579A (en) * | 2008-06-13 | 2009-12-16 | 万裕三信电子(东莞)有限公司 | Lead wire type aluminum electrolytic capacitor |
| CN201773715U (en) * | 2010-08-03 | 2011-03-23 | 何平洲 | Aluminium electrolytic capacitor core wrap |
-
2011
- 2011-05-02 CN CN 201110111143 patent/CN102270537A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030039093A1 (en) * | 2001-07-30 | 2003-02-27 | Kazuo Tadanobu | Solid electrolytic capacitor and its manufacturing method |
| CN1595564A (en) * | 2004-06-04 | 2005-03-16 | 王安安 | An aluminum electrolytic capacitor and method for manufacturing same |
| CN201138613Y (en) * | 2007-08-21 | 2008-10-22 | 南通江海电容器有限公司 | Aluminium electrolysis capacitor |
| CN101604579A (en) * | 2008-06-13 | 2009-12-16 | 万裕三信电子(东莞)有限公司 | Lead wire type aluminum electrolytic capacitor |
| CN201773715U (en) * | 2010-08-03 | 2011-03-23 | 何平洲 | Aluminium electrolytic capacitor core wrap |
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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: 20111207 |