CN203085371U - Aluminium electrolytic capacitor - Google Patents
Aluminium electrolytic capacitor Download PDFInfo
- Publication number
- CN203085371U CN203085371U CN 201220692148 CN201220692148U CN203085371U CN 203085371 U CN203085371 U CN 203085371U CN 201220692148 CN201220692148 CN 201220692148 CN 201220692148 U CN201220692148 U CN 201220692148U CN 203085371 U CN203085371 U CN 203085371U
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- aluminium foil
- aluminium
- guide pin
- cathode
- negative pole
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Abstract
The utility model discloses an aluminium electrolytic capacitor comprising an aluminium housing and a capacitor core; the capacitor core comprises an anode aluminium foil, a cathode aluminium foil, an anode guide pin and a cathode pin, wherein the anode guide pin is riveted with the anode aluminium foil, and the cathode guide pin is riveted with the cathode aluminium foil; at least an electrolytic paper layer is arranged between the anode aluminium foil and the cathode aluminium foil, backsides of the anode aluminium foil and cathode aluminium foil are respectively provided with a liner paper layer, and the two liner paper layers respectively cover a burr formed by riveting of the anode guide pin and the anode aluminium foil and a burr formed by riveting of the cathode guide pin and the cathode aluminium foil; and an inner wall of the aluminium housing is provided with an insulation film. The aluminium electrolytic capacitor arranges the liner paper to block the burrs in winding, prevents the burr from penetrating the electrolytic paper, or prevents disadvantages of capacitor short circuit breakdown and blast caused by point discharge of the burrs in an electric field; and the aluminium housing inner wall is provided with the insulation film, so yin and yang poles of the capacitor core will not have short circuit even if the aluminium housing inner wall contacts with the capacitor core, thereby generating a purpose of preventing the aluminium housing capacitor core short circuit.
Description
Technical field
The utility model relates to a kind of capacitor, relates in particular to a kind of aluminium electrolytic capacitor.
Background technology
Aluminium electrolytic capacitor generally is to be made of aluminum hull, capacitor core and Jiao Gai.Wherein capacitor core generally comprises positive and negative guide pin, anodal 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 the positive and negative electrode aluminium foil, electrolytic paper is clipped between two aluminium foils, in reality processing, magic flower produces burr during owing to the thorn riveting, when reeling with electrolytic paper, burr may pierce through electrolytic paper or burr causes situations such as capacitor short-circuit puncture, blast in the 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 around the capacitor core must and the inwall of aluminum hull between remaining bigger spacing, with prevent from not cause because of installation accuracy is high capacitor core produce crooked run into the aluminum hull inwall may.Capacitor core contacts faults such as the short circuit of aluminum hull capacitor core then can occur making with aluminum hull.
Summary of the invention
At the problem that above-mentioned prior art exists, the utility model purpose is to provide that a kind of capacitance volume ratio is big, the aluminium electrolytic capacitor of long service life.
The technical solution of the utility model is: a kind of aluminium electrolytic capacitor, comprise aluminum hull and capacitor core, described capacitor core comprises anodal aluminium foil, the negative pole aluminium foil, anodal guide pin and negative pole guide pin, described anodal guide pin and the riveted joint of anodal aluminium foil, negative pole guide pin and the riveted joint of negative pole aluminium foil, accompany one deck electrolytic paper at least between anodal aluminium foil and the negative pole aluminium foil, the back side at anodal aluminium foil and negative pole aluminium foil respectively adds one deck interleaving paper, two-layer interleaving paper covers the burr of anodal guide pin and anodal aluminium foil riveted joint formation and the burr of negative pole guide pin and negative pole aluminium foil riveted joint formation respectively, and described aluminum hull inwall is provided with dielectric film.
As preferably, described dielectric film is the coating that is coated in the aluminum hull inwall.
As preferably, the thickness of described coating is 5-25 μ m.
As preferably, the thickness of described coating is 8 μ m.
The beneficial effects of the utility model are: adopted interleaving paper to cover the burr of positive and negative electrode guide pin and positive and negative electrode aluminium foil riveted joint formation, when reeling with electrolytic paper, interleaving paper can stop burr, thereby avoided burr to penetrate electrolytic paper or burr and caused defectives such as capacitor short-circuit puncture, blast in the discharge of electric field lower prong, owing to be provided with dielectric film at the aluminum hull inwall, can not make its negative and positive the two poles of the earth short circuit even dielectric film makes the aluminum hull inwall contact with capacitor core yet, thereby play the effect that prevents the short circuit of aluminum hull capacitor core.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of capacitor core among Fig. 1.
Among the figure: 1, aluminum hull; 2, capacitor core; 3, dielectric film; 21, anodal aluminium foil; 22, negative pole aluminium foil; 23, anodal guide pin; 24, negative pole guide pin; 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 anodal aluminium foil 21, negative pole aluminium foil 22, anodal guide pin 23 and negative pole guide pin 24, described anodal guide pin 23 and anodal aluminium foil 21 riveted joints, negative pole guide pin 24 and 22 riveted joints of negative pole aluminium foil, accompany one deck electrolytic paper 25 between anodal aluminium foil 21 and the negative pole aluminium foil 22, the back side at anodal aluminium foil 21 and negative pole aluminium foil 22 respectively adds one deck interleaving paper 26, two-layer interleaving paper 26 covers anodal guide pin 23 respectively and rivets the burr that forms with burr and negative pole guide pin 24 that anodal aluminium foil 21 riveted joints form with negative pole aluminium foil 22, 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.
Claims (4)
1. aluminium electrolytic capacitor, comprise aluminum hull and capacitor core, described capacitor core comprises anodal aluminium foil, the negative pole aluminium foil, anodal guide pin and negative pole guide pin, described anodal guide pin and the riveted joint of anodal aluminium foil, negative pole guide pin and the riveted joint of negative pole aluminium foil, accompany one deck electrolytic paper at least between anodal aluminium foil and the negative pole aluminium foil, it is characterized in that: the back side at anodal aluminium foil and negative pole aluminium foil respectively adds one deck interleaving paper, two-layer interleaving paper covers the burr of anodal guide pin and anodal aluminium foil riveted joint formation and the burr of negative pole guide pin and negative pole aluminium foil riveted joint formation respectively, and 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 the aluminum hull inwall.
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 |
|---|---|---|---|
| CN 201220692148 CN203085371U (en) | 2012-12-14 | 2012-12-14 | Aluminium electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220692148 CN203085371U (en) | 2012-12-14 | 2012-12-14 | Aluminium electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203085371U true CN203085371U (en) | 2013-07-24 |
Family
ID=48831187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220692148 Expired - Fee Related CN203085371U (en) | 2012-12-14 | 2012-12-14 | Aluminium electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203085371U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900408A (en) * | 2015-06-02 | 2015-09-09 | 苏州携旅网络技术有限公司 | Aluminium electrolytic capacitor resistant to inverse voltage |
| CN104900409A (en) * | 2015-06-02 | 2015-09-09 | 苏州携旅网络技术有限公司 | Aluminium electrolytic capacitor |
| CN109192504A (en) * | 2018-08-13 | 2019-01-11 | 江门市德佑金属材料实业有限公司 | A kind of capacitor protector with flange |
| CN109390154A (en) * | 2018-11-15 | 2019-02-26 | 丰宾电子（深圳）有限公司 | A kind of core arrangement of aluminium electrolutic capacitor and preparation method thereof |
| CN111954940A (en) * | 2018-04-06 | 2020-11-17 | 三洋电机株式会社 | Battery with a battery cell |
-
2012
- 2012-12-14 CN CN 201220692148 patent/CN203085371U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900408A (en) * | 2015-06-02 | 2015-09-09 | 苏州携旅网络技术有限公司 | Aluminium electrolytic capacitor resistant to inverse voltage |
| CN104900409A (en) * | 2015-06-02 | 2015-09-09 | 苏州携旅网络技术有限公司 | Aluminium electrolytic capacitor |
| CN111954940A (en) * | 2018-04-06 | 2020-11-17 | 三洋电机株式会社 | Battery with a battery cell |
| CN109192504A (en) * | 2018-08-13 | 2019-01-11 | 江门市德佑金属材料实业有限公司 | A kind of capacitor protector with flange |
| CN109390154A (en) * | 2018-11-15 | 2019-02-26 | 丰宾电子（深圳）有限公司 | A kind of core arrangement of aluminium electrolutic capacitor and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHENZHEN KEWEIMEI ELECTRONIC CO., LTD. Assignor: Jian Xing Contract record no.: 2014440020138 Denomination of utility model: Method for removing residual copper of aluminium corroding foil surface of negative electrode for aluminium electrolytic capacitor Granted publication date: 20130724 License type: Exclusive License Record date: 20140504 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20171214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |