CN202977174U

CN202977174U - Aluminum shell sealed electrolytic capacitor

Info

Publication number: CN202977174U
Application number: CN 201220537019
Authority: CN
Inventors: 徐敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-19
Filing date: 2012-10-19
Publication date: 2013-06-05
Anticipated expiration: 2022-10-19

Abstract

The utility model discloses an aluminum shell sealed electrolytic capacitor. The electrolytic capacitor comprises a shell, a capacitor core package and a rubber plug which are arranged in the shell, wherein an insulation film is arranged on the inner wall of the shell, one or more than one arc inner concave ring is arranged on the port of the shell; the capacitor core package is formed by winding a positive conductive needle, a negative conductive needle, an electrolytic paper, an anode foil and a cathode foil, and the positive conductive needle and the negative conductive needle are high pressure leads; the rubber plug is provided with cooperation connection holes cooperated with the positive conductive needle and the negative conductive needle, and the top of the rubber plug is cooperated and connected with a folded edge on the port of the shell. The aluminum shell sealed electrolytic capacitor solves the technical problems of the existing art that: the combination of the negative conductive needle and the cathode foil easily strikes the fire and corrodes, resulting in failure of the capacitor and complex production process. The electrolytic capacitor has features of simple structure, reasonable design, and obvious sealing effect.

Description

A kind of aluminum hull hermetic electrolyte capacitor

Technical field

The utility model relates to a kind of capacitor, relates to specifically a kind of aluminum hull hermetic electrolyte capacitor.

Background technology

At present, existing aluminium electrolytic capacitor is generally to be made of aluminum hull body, capacitor core and Jiao Gai.Wherein capacitor core is to be overlapped by 4 layers of anode metal paper tinsel, electrolytic paper, cathodic metal paper tinsel, electrolytic papers etc. to reel, then forms through the processing of impregnation electrolyte.Aluminium electrolytic capacitor used wants cube little in the electric ballast of electronic energy-saving lamp, and anti-than large ripple current, works reliably and with long-term under the condition of the nearly Baidu of ambient temperature.People have proposed diversified execution mode for this reason, have carried out continuous exploration such as the aspects such as impedance of the conductivity that is anodizing to paper tinsel voltage, raising electrolyte in raising, reduction insulating barrier.The mixture that will contain crosslinkable macromolecular material, magnesium oxide, crosslinking agent in the sealing part of aluminium electrolytic capacitor system is done crosslinked shaping and is formed.Above-mentioned be formed in hot and humid under, can prevent that also electrolyte from spilling.But because the junction of sealing part is not effectively improved, its closed performance still can't be guaranteed.

Summary of the invention

For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of rational in infrastructure, long service life, the aluminum hull hermetic electrolyte capacitor of good seal performance.

To achieve these goals, the technical solution adopted in the utility model is: a kind of aluminum hull hermetic electrolyte capacitor, comprise housing and establish in the inner capacitor core bag and plug, the inwall of described housing is provided with dielectric film, is provided with together in the port of housing or scrobicular ring in the arc together; Described capacitor core bag is reeled together by positive guide pin, negative guide pin, electrolytic paper, anode foils and Cathode Foil and is made, and its positive guide pin and negative guide pin are that high pressure changes into lead-in wire; Described plug is provided with the matching hole that matches with positive guide pin and negative guide pin, and the crimping of the top of plug and the port of housing connects.

Preferably, described housing is electrically connected to negative guide pin by wire, also is provided with pyrocondensation PVC insulated plastic cover at the outer wall of housing.

Compared with prior art, the beneficial effects of the utility model are: the combination that the utility model has solved the existing negative guide pin of prior art and Cathode Foil is easy to sparking and corrosion, thereby causes that capacitor lost efficacy, the technical problem of complex manufacturing process etc.Electrolytic capacitor of the present utility model is simple in structure, and is reasonable in design, and sealing effectiveness is obvious; The utility model has not only that loss is low, the characteristics of little, the good airproof performance of electric leakage and long service life, but also has good operating stability under the condition of high temperature, and lead-in wire is connected firmly stable, is difficult for producing the characteristics of corrosion.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is that schematic diagram is launched in the inside of Fig. 1;

In figure: 1, housing; 2, positive guide pin; 3, negative guide pin; 4, capacitor core bag; 5, electrolytic paper; 6, plug; 11, crimping; 12, scrobicular ring in arc; 13, pyrocondensation PVC insulated plastic cover; 21, anode foils; 31, Cathode Foil.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Referring to Fig. 1 and Fig. 2, aluminum hull hermetic electrolyte capacitor of the present utility model comprises housing 1 and establishes in the inner capacitor core bag 4 and plug 6 that the inwall of described housing 1 is provided with dielectric film, scrobicular ring 12 in the port of housing 1 is provided with one arc; Described capacitor core bag 4 is reeled together by positive guide pin 2, negative guide pin 3, electrolytic paper 5, anode foils 21 and Cathode Foil 31 and is made, and its positive guide pin 2 and negative guide pin 3 change into lead-in wire for high pressure; Described plug 6 is provided with the matching hole that matches with positive guide pin 2 and negative guide pin 3, and the crimping 11 of the port of the top of plug 6 and housing 1 connects.Described housing 1 is electrically connected to negative guide pin 3 by wire, also is provided with pyrocondensation PVC insulated plastic cover 13 at the outer wall of housing 1.

Above-mentioned is only a kind of embodiment of the present utility model; not in order to limit the utility model; those skilled in the art can make various changes and improve said structure; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.

Claims

1. aluminum hull hermetic electrolyte capacitor comprises housing and establishes in the inner capacitor core bag and plug that it is characterized in that: the inwall of described housing is provided with dielectric film, is provided with together in the port of housing or scrobicular ring in the arc together; Described capacitor core bag is reeled together by positive guide pin, negative guide pin, electrolytic paper, anode foils and Cathode Foil and is made, and its positive guide pin and negative guide pin are that high pressure changes into lead-in wire; Described plug is provided with the matching hole that matches with positive guide pin and negative guide pin, and the crimping of the top of plug and the port of housing connects.

2. a kind of aluminum hull hermetic electrolyte capacitor according to claim 1, it is characterized in that: described housing is electrically connected to negative guide pin by wire, also is provided with pyrocondensation PVC insulated plastic cover at the outer wall of housing.