CN104143440A - Aluminum electrolytic capacitor - Google Patents
Aluminum electrolytic capacitor Download PDFInfo
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- CN104143440A CN104143440A CN201310301146.5A CN201310301146A CN104143440A CN 104143440 A CN104143440 A CN 104143440A CN 201310301146 A CN201310301146 A CN 201310301146A CN 104143440 A CN104143440 A CN 104143440A
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- negative electrode
- guide pin
- aluminium foil
- positive electrode
- pole aluminium
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Abstract
The invention discloses an aluminum electrolytic capacitor which comprises an aluminum shell and a capacitor core. The capacitor core comprises positive electrode aluminum foil, negative electrode aluminum foil, a positive electrode guide pin and a negative electrode guide pin, the positive electrode guide pin is riveted to the positive electrode aluminum foil, the negative electrode guide pin is riveted to the negative electrode aluminum foil, the upper end diameter of the positive electrode guide pin and the upper end diameter of the negative electrode guide pin are larger than 0.8 mm, at least one layer of electrolytic paper is clamped between the positive electrode aluminum foil and the negative electrode aluminum foil, the back face of the positive electrode aluminum foil and the back face of the negative electrode aluminum foil are respectively provided with a layer of interleaving paper additionally, and an insulating film is arranged on the inner wall of the aluminum shell. According to the aluminum electrolytic capacitor, when the paper is wound, the interleaving paper can block burrs, the defects that the burrs penetrate through the electrolytic paper or short circuit, breakdown, explosion and the like occurs to the capacitor due to the fact that point discharge occurs to the burrs in an electric field are avoided; due to the fact that the insulating film is arranged on the inner wall of the aluminum shell, even if the inner wall of the aluminum shell makes contact with the capacitor core, short circuit cannot occur between the negative electrode and the positive electrode of the capacitor core by means of the insulating film, and the aluminum shell and the capacitor core can be protected against short circuit.
Description
Technical field
The present invention relates to a kind of capacitor, relate in particular to a kind of aluminium electrolytic capacitor.
Background technology
Aluminium electrolytic capacitor is generally to consist of aluminum hull, capacitor core and Jiao Gai.Wherein capacitor core generally comprises positive and negative guide pin, positive pole aluminium foil, negative pole aluminium foil, the electrolytic paper of one deck at least; In production technology, the tongue of its positive and negative guide pin is riveted on respectively on positive and negative electrode aluminium foil, electrolytic paper is clipped between two aluminium foils, in reality processing, during due to thorn riveting, magic flower produces burr, when reeling together with electrolytic paper, burr may pierce through electrolytic paper or burr causes the situations such as capacitor short-circuit punctures, blast in the electric discharge of electric field lower prong.In addition, the aluminum hull of aluminium electrolytic capacitor is the shell of aluminium electrolytic capacitor, has protection capacitor core, isolated capacitor core and extraneous effect.The aluminum hull of aluminium electrolytic capacitor of the prior art is stamped to form by aluminium, its inwall does not have insulating capacity, therefore aluminium electrolytic capacitor when assembling capacitor core around must and the inwall of aluminum hull between remaining larger spacing, with prevent from causing because installation accuracy is not high capacitor core produce crooked encounter aluminum hull inwall may.Capacitor core contacts with aluminum hull and there will be faults such as making the short circuit of aluminum hull capacitor core
summary of the invention
The problem existing for above-mentioned prior art, the object of the invention is to provide that a kind of capacitance volume ratio is large, the aluminium electrolytic capacitor of long service life.
Technical scheme of the present invention is: a kind of aluminium electrolytic capacitor, comprise aluminum hull and capacitor core, described capacitor core comprises positive pole aluminium foil, negative pole aluminium foil, anodal guide pin and negative electrode guide needle, described anodal guide pin and positive pole aluminium foil riveted joint, negative electrode guide needle and negative pole aluminium foil riveting, the diameter of described anodal guide pin and negative electrode guide needle upper end is greater than 0.8mm, between positive pole aluminium foil and negative pole aluminium foil, accompany at least one deck electrolytic paper, the back side at positive pole aluminium foil and negative pole aluminium foil respectively adds one deck interleaving paper, two-layer interleaving paper covers respectively the burr of anodal guide pin and positive pole aluminium foil riveted joint formation and the burr of negative electrode guide needle and the formation of negative pole aluminium foil riveting, described aluminum hull inwall is provided with dielectric film.
As preferably, described dielectric film is the coating that is coated in aluminum hull inwall, and the diameter of described anodal guide pin and negative electrode guide needle upper end is 1mm.
As preferably, the thickness of described coating is 5-25 μ m.
As preferably, the thickness of described coating is 8 μ m.
The invention has the beneficial effects as follows: the present invention has adopted interleaving paper to cover the burr of positive and negative electrode guide pin and the formation of positive and negative electrode aluminium foil riveting, when reeling together with electrolytic paper, interleaving paper can stop burr, thereby avoided burr to penetrate electrolytic paper or burr and caused the defects such as capacitor short-circuit punctures, blast in the electric discharge of electric field lower prong, owing to being provided with dielectric film at aluminum hull inwall, even if dielectric film makes aluminum hull inwall contact with capacitor core, can not make its negative and positive the two poles of the earth short circuit yet, thereby play the effect that prevents the short circuit of aluminum hull capacitor core.The diameter of anodal guide pin and negative electrode guide needle upper end is greater than 0.8mm, has improved intensity and the firmness of guide pin, has good practicality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of capacitor core in Fig. 1.
In figure: 1, aluminum hull; 2, capacitor core; 3, dielectric film; 21, positive pole aluminium foil; 22, negative pole aluminium foil; 23, anodal guide pin; 24, negative electrode guide needle; 25, electrolytic paper; 26, interleaving paper.
Embodiment
Embodiment 1: as depicted in figs. 1 and 2, a kind of aluminium electrolytic capacitor, comprise aluminum hull 1 and capacitor core 2, described capacitor core 2 comprises positive pole aluminium foil 21, negative pole aluminium foil 22, anodal guide pin 23 and negative electrode guide needle 24, described anodal guide pin 23 and positive pole aluminium foil 21 riveted joints, negative electrode guide needle 24 and 22 riveted joints of negative pole aluminium foil, the diameter of described anodal guide pin 23 and negative electrode guide needle 24 upper ends is greater than 0.8mm, in the present embodiment, as preferably, the diameter of anodal guide pin 23 and negative electrode guide needle 24 upper ends is 1mm.Between positive pole aluminium foil 21 and negative pole aluminium foil 22, accompany one deck electrolytic paper 25, the back side at positive pole aluminium foil 21 and negative pole aluminium foil 22 respectively adds one deck interleaving paper 26, two-layer interleaving paper 26 covers respectively anodal guide pin 23 and rivets with negative pole aluminium foil 22 burr forming with burr and negative electrode guide needle 24 that positive pole aluminium foil 21 riveted joints form, described aluminum hull 1 inwall is provided with dielectric film 3, described dielectric film 3 is the coatings that are coated in aluminum hull 1 inwall, the thickness of described coating is 5-25 μ m, is preferably 8 μ m.
Above a kind of aluminium electrolytic capacitor provided by the present invention has been carried out to detailed introduction, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand structure of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.To change of the present invention and improvement, will be possible, and can not exceed design and the scope that accessory claim can be stipulated.
Claims (4)
1. an aluminium electrolytic capacitor, comprise aluminum hull and capacitor core, described capacitor core comprises positive pole aluminium foil, negative pole aluminium foil, anodal guide pin and negative electrode guide needle, described anodal guide pin and positive pole aluminium foil riveted joint, negative electrode guide needle and negative pole aluminium foil riveting, the diameter of described anodal guide pin and negative electrode guide needle upper end is greater than 0.8mm, between positive pole aluminium foil and negative pole aluminium foil, accompany at least one deck electrolytic paper, it is characterized in that: the back side at positive pole aluminium foil and negative pole aluminium foil respectively adds one deck interleaving paper, two-layer interleaving paper covers respectively the burr of anodal guide pin and positive pole aluminium foil riveted joint formation and the burr of negative electrode guide needle and the formation of negative pole aluminium foil riveting, described aluminum hull inwall is provided with dielectric film.
2. aluminium electrolytic capacitor according to claim 1, is characterized in that: described dielectric film is the coating that is coated in aluminum hull inwall, and the diameter of described anodal guide pin and negative electrode guide needle upper end is 1mm.
3. aluminium electrolytic capacitor according to claim 2, is characterized in that: the thickness of described coating is 5-25 μ m.
4. aluminium electrolytic capacitor according to claim 3, is characterized in that: the thickness of described coating is 8 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301146.5A CN104143440A (en) | 2013-07-18 | 2013-07-18 | Aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301146.5A CN104143440A (en) | 2013-07-18 | 2013-07-18 | Aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104143440A true CN104143440A (en) | 2014-11-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310301146.5A Pending CN104143440A (en) | 2013-07-18 | 2013-07-18 | Aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN104143440A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810437A (en) * | 2015-10-29 | 2016-07-27 | 钰邦电子（无锡）有限公司 | Improved structure of reeling type capacitor assembly, and reeling type solid electrolytic capacitor |
| TWI556277B (en) * | 2015-10-14 | 2016-11-01 | 鈺邦科技股份有限公司 | Improved structure of winding-type capacitor element and winding-type solid electrolytic capacitor thereof |
| CN108183035A (en) * | 2018-01-16 | 2018-06-19 | 益阳市安兴电子有限公司 | Small aluminium electrolutic capacitor of a kind of leakage current and preparation method thereof |
| CN108597881A (en) * | 2018-04-12 | 2018-09-28 | 常州华威电子有限公司 | Resistance to big direct current impact electrolytic capacitor of one kind and preparation method thereof |
| CN113390299A (en) * | 2020-03-13 | 2021-09-14 | 湖南艾华集团股份有限公司 | Novel lead wire of electronic firecracker and single structure of electronic firecracker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200986861Y (en) * | 2006-12-19 | 2007-12-05 | 东莞市东阳光电容器有限公司 | Aluminium electrolysis capacitor |
| CN202662460U (en) * | 2012-05-10 | 2013-01-09 | 四川欧润特软件科技有限公司 | Aluminium electrolytic capacitor |
| CN202678117U (en) * | 2012-06-26 | 2013-01-16 | 海门市三鑫电子有限责任公司 | Electrode foil equipped with double liner paper and manufactured by aluminium electrolysis |
| CN202749231U (en) * | 2012-07-05 | 2013-02-20 | 常州飞进电子有限公司 | Aluminium electrolytic capacitor |
| CN102983292A (en) * | 2011-09-07 | 2013-03-20 | 李正煌 | Method of manufacturing environmental-friendly insulated aluminum case for aluminum electrolytic capacitors and lithium batteries |
-
2013
- 2013-07-18 CN CN201310301146.5A patent/CN104143440A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986861Y (en) * | 2006-12-19 | 2007-12-05 | 东莞市东阳光电容器有限公司 | Aluminium electrolysis capacitor |
| CN102983292A (en) * | 2011-09-07 | 2013-03-20 | 李正煌 | Method of manufacturing environmental-friendly insulated aluminum case for aluminum electrolytic capacitors and lithium batteries |
| CN202662460U (en) * | 2012-05-10 | 2013-01-09 | 四川欧润特软件科技有限公司 | Aluminium electrolytic capacitor |
| CN202678117U (en) * | 2012-06-26 | 2013-01-16 | 海门市三鑫电子有限责任公司 | Electrode foil equipped with double liner paper and manufactured by aluminium electrolysis |
| CN202749231U (en) * | 2012-07-05 | 2013-02-20 | 常州飞进电子有限公司 | Aluminium electrolytic capacitor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI556277B (en) * | 2015-10-14 | 2016-11-01 | 鈺邦科技股份有限公司 | Improved structure of winding-type capacitor element and winding-type solid electrolytic capacitor thereof |
| CN105810437A (en) * | 2015-10-29 | 2016-07-27 | 钰邦电子（无锡）有限公司 | Improved structure of reeling type capacitor assembly, and reeling type solid electrolytic capacitor |
| CN108183035A (en) * | 2018-01-16 | 2018-06-19 | 益阳市安兴电子有限公司 | Small aluminium electrolutic capacitor of a kind of leakage current and preparation method thereof |
| CN108183035B (en) * | 2018-01-16 | 2020-05-26 | 益阳市安兴电子有限公司 | Aluminum electrolytic capacitor with small leakage current and preparation method thereof |
| CN108597881A (en) * | 2018-04-12 | 2018-09-28 | 常州华威电子有限公司 | Resistance to big direct current impact electrolytic capacitor of one kind and preparation method thereof |
| CN113390299A (en) * | 2020-03-13 | 2021-09-14 | 湖南艾华集团股份有限公司 | Novel lead wire of electronic firecracker and single structure of electronic firecracker |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141112 |
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| WD01 | Invention patent application deemed withdrawn after publication |