CN203536229U - Aluminum electrolytic capacitor - Google Patents
Aluminum electrolytic capacitor Download PDFInfo
- Publication number
- CN203536229U CN203536229U CN201320426522.9U CN201320426522U CN203536229U CN 203536229 U CN203536229 U CN 203536229U CN 201320426522 U CN201320426522 U CN 201320426522U CN 203536229 U CN203536229 U CN 203536229U
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- Prior art keywords
- negative
- foil
- pole
- electrolytic capacitor
- capacitor
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Abstract
The utility model discloses an aluminum electrolytic capacitor, which comprises an aluminum shell and a capacitor core. The capacitor core comprises a positive-pole foil, a negative-pole foil, electrolytic paper wrapped outside the positive-pole foil and the negative-pole foil, a positive-pole pin and a negative-pole pin. The positive-pole pin and the negative-pole pin are respectively arranged on the positive-pole foil and the negative-pole foil. The inner wall of the aluminum shell is coated with an insulating film. An interval of 0.5 mm is reserved between the capacitor core and the inner wall of the aluminum shell. The negative-pole foil is in the form of a pressurized negative-pole foil. According to the technical scheme of the utility model, the aluminum electrolytic capacitor is simple in structure and reduced in boundary dimension, while the function and the performance of the electrolytic capacitor are kept the same. Meanwhile, through pressuring the negative-pole foil, the backward voltage resistance of the electrolytic capacitor is improved, and the ripple current resistance of the electrolytic capacitor is greatly improved finally. Therefore, the usage requirements of welding machines, frequency converters and other equipment can be better met.
Description
Technical field
The utility model belongs to technical field of electrolytic, is specifically related to a kind of aluminium electrolytic capacitor.
Background technology
Owing to carrying out capacitor core that impregnation electrolyte processes likely because installation accuracy is not high, produce the crooked aluminum hull inwall of encountering, make aluminum hull cause the capacitor core phenomenon that is short-circuited.Along with the size of various electronic systems, comprise day by day dwindling of thickness, other electronic components meet the requirement of this trend substantially, and this also requires electrolytic capacitor in its performance, not lose on the basis of previous level, by the further miniaturization of overall dimension; And because anode foil voltage is zero, the resistance to reverse withstand voltage deficiency of this kind of capacitor, thus cause resistance to ripple indifferent, in use, easily break down and even damage.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and a kind of aluminium electrolytic capacitor is provided, and it is simple in structure, capacitance volume ratio is larger, and resistance to reverse withstand voltage foot.
The technical scheme that the utility model adopts is: a kind of aluminium electrolytic capacitor, comprise aluminum hull and capacitor core, described capacitor core comprises cathode foil, anode foil, holds the electrolytic paper of cathode foil and anode foil, and be separately positioned on anodal pin and the negative pole pin in cathode foil and anode foil, on described aluminum hull inwall, be covered with a dielectric film, between capacitor core and aluminum hull inwall, be spaced apart 0.5 millimeter, described anode foil adopts pressurization anode foil.
As preferably, the voltage of described pressurization anode foil is more than 3V.
As preferably, described dielectric film is bonded in aluminum hull inwall.
The beneficial effects of the utility model are: the utility model is simple in structure, reasonable in design, can keep function and performance not to lose the overall dimension of dwindling electrolytic capacitor on the basis of previous level, and by using negative paper tinsel pressurization that the resistance to reverse voltage ability of capacitor is improved, final resistance to ripple ability promotes greatly, better meets the instructions for use of welding machine and these equipment of frequency converter.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1, aluminum hull; 2, capacitor core; 3, anodal pin; 4, negative pole pin; 5, dielectric film.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in further detail.
Embodiment: as shown in Figure 1, the utility model comprises aluminum hull 1 and capacitor core 2, described capacitor core 2 comprises cathode foil, anode foil, holds the electrolytic paper of cathode foil and anode foil, and be separately positioned on anodal pin 3 and the negative pole pin 4 in cathode foil and anode foil, on described aluminum hull 1 inwall, be bonded with dielectric film 5, between capacitor core 2 and aluminum hull 1 inwall, be spaced apart 0.5 millimeter, described anode foil adopts pressurization anode foil; The voltage of described pressurization anode foil is more than 3V.
The utility model is simple in structure, reasonable in design, can keep function and performance not to lose the overall dimension of dwindling electrolytic capacitor on the basis of previous level, and by using negative paper tinsel pressurization that the resistance to reverse voltage ability of capacitor is improved, final resistance to ripple ability promotes greatly, better meets the instructions for use of welding machine and these equipment of frequency converter.
Claims (3)
1. an aluminium electrolytic capacitor, comprise aluminum hull and capacitor core, described capacitor core comprises cathode foil, anode foil, holds the electrolytic paper of cathode foil and anode foil, and be separately positioned on anodal pin and the negative pole pin in cathode foil and anode foil, it is characterized in that: on described aluminum hull inwall, be covered with a dielectric film, between capacitor core and aluminum hull inwall, be spaced apart 0.5 millimeter, described anode foil adopts pressurization anode foil.
2. aluminium electrolytic capacitor according to claim 1, is characterized in that: the voltage of described pressurization anode foil is more than 3V.
3. aluminium electrolytic capacitor according to claim 1, is characterized in that: described dielectric film is bonded in aluminum hull inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320426522.9U CN203536229U (en) | 2013-07-18 | 2013-07-18 | Aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320426522.9U CN203536229U (en) | 2013-07-18 | 2013-07-18 | Aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536229U true CN203536229U (en) | 2014-04-09 |
Family
ID=50422410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320426522.9U Expired - Fee Related CN203536229U (en) | 2013-07-18 | 2013-07-18 | Aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900409A (en) * | 2015-06-02 | 2015-09-09 | 苏州携旅网络技术有限公司 | Aluminium electrolytic capacitor |
-
2013
- 2013-07-18 CN CN201320426522.9U patent/CN203536229U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900409A (en) * | 2015-06-02 | 2015-09-09 | 苏州携旅网络技术有限公司 | Aluminium electrolytic capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20150718 |
|
| EXPY | Termination of patent right or utility model |