CN201266551Y

CN201266551Y - Aluminum electrolysis capacitor for reducing marginal discharge phenomena

Info

Publication number: CN201266551Y
Application number: CNU200820153932XU
Authority: CN
Inventors: 严丽芳
Original assignee: SHANGHAI YONGMING ELECTRONIC CO Ltd
Current assignee: SHANGHAI YONGMING ELECTRONIC CO Ltd
Priority date: 2008-10-10
Filing date: 2008-10-10
Publication date: 2009-07-01
Anticipated expiration: 2018-10-10

Abstract

The utility model relates to an aluminium electrolytic capacitor which reduces the point discharge phenomenon and is characterized by comprising a positive guide needle; the tongue part of the positive guide needle is arranged on the lower surface of an anode aluminium foil and one surface thereof with burrs is contacted with the foil surface of the anode aluminium foil; the tongue part of a negative guide needle is arranged on the upper surface of a cathode aluminium foil and one surface thereof with burrs is contacted with the foil surface of the cathode aluminium foil; a layer of electrolytic paper is respectively arranged between the anode aluminium foil and the cathode aluminium foil and on the lower surface of the positive guide needle; one surface of the positive guide needle without burrs is contacted with the electrolytic paper; the positive guide needle and the negative guide needle are arranged back to back; and the burr surfaces of the two guide needles are arranged face to face. The aluminium electrolytic capacitor has the advantages that the burrs at the tongue of the guide needle do not punch the electrolytic paper, and reduces the point discharge phenomenon of the burrs, thus prolonging the service life of the product and greatly reducing the failure phenomenon during the middle stage of the product.

Description

A kind of aluminium electrolytic capacitor that reduces point discharge phenomenon

Technical field

The utility model relates to a kind of aluminium electrolytic capacitor that reduces point discharge phenomenon, belongs to the manufacturing process of aluminum electrolytic capacitor technical field.

Background technology

At present, in existing aluminium electrolytic capacitor production technology, as shown in Figure 1, the tongue that the tongue of its positive guide pin 6 is located at top, the negative guide pin 5 of anodal aluminium foil 1 be located at negative pole aluminium foil 2 below, between anodal aluminium foil 1, the negative pole aluminium foil 2 and be respectively equipped with one deck electrolytic paper 3 below the anodal aluminium foil 1, the big burr of marginal existence of one side is arranged and another side does not almost have burr at the aluminium tongue of positive guide pin 6, negative guide pin 5, when the guide pin burr touched electrolytic paper, burr may pierce through electrolytic paper and cause short circuit to puncture; And the point discharge effect will take place in guide pin burr place under the "on" position, and partial breakdown perhaps appears in product or early failure occurs when using mid-term, cause life of product can't reach re-set target.

Summary of the invention

The purpose of this utility model provides a kind of aluminium electrolytic capacitor that reduces point discharge phenomenon.

For realizing above purpose, the technical solution of the utility model provides a kind of alminium electrolytic condenser that reduces point discharge phenomenon, it is characterized in that, comprise positive guide pin, the tongue of positive guide pin be located at anodal aluminium foil below, jagged one side contacts with the paper tinsel face of anodal aluminium foil, the tongue of negative guide pin be located at the negative pole aluminium foil above, jagged one side contacts with the paper tinsel face of negative pole aluminium foil, anodal aluminium foil, be respectively equipped with one deck electrolytic paper between the negative pole aluminium foil and below the positive guide pin, the positive carrot-free one side of guide pin contacts with electrolytic paper, positive guide pin and negative guide pin back-to-back, the burr of two guide pins is face-to-face.

Earlier guide pin is selected face before being put into guide pin on the aluminium foil paper tinsel face, the one side that guide pin aluminium tongue is jagged contacts with positive and negative aluminium foil paper tinsel face and carrot-free one side contacts with electrolytic paper, thereby stopped the possibility that the guide pin burr pierces through electrolytic paper, reduced point discharge phenomenon simultaneously.

The utility model has the advantages that guide pin aluminium tongue burr can not pierce through electrolytic paper and reduce the burr point discharge phenomenon, thereby prolonged life of product and significantly reduced product failure phenomenon in mid-term.Through test, the short circuit puncture rate that is caused by positive and negative guide pin burr is reduced to 0ppm by original 0.2%, and product prolongs 10% useful life, and product failure rate in mid-term drops to 1pp by 20ppm.

Description of drawings

Fig. 1 is the aluminium electrolytic capacitor structural representation;

Fig. 2 is embodiment 1 schematic diagram;

Fig. 3 is embodiment 2 schematic diagrames;

Fig. 4 is embodiment 3 schematic diagrames;

Fig. 5 is embodiment 4 schematic diagrames.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment 1

As shown in Figure 1, 2, be the aluminium electrolytic capacitor structural representation, described a kind of aluminium electrolytic capacitor that reduces point discharge phenomenon is by anodal aluminium foil 1, negative pole aluminium foil 2, electrolytic paper 3, and burr 4, negative guide pin 5 and positive guide pin 6 are formed.

At first align guide pin 6 and negative guide pin 5 selects face, with the tongue of positive guide pin 6 be located at anodal aluminium foil 1 below, jagged 4 one side contacts with the paper tinsel face of anodal aluminium foil 1, with the tongue of negative guide pin 5 be located at negative pole aluminium foil 2 above, jagged 4 one side contacts with the paper tinsel face of negative pole aluminium foil 2, anodal aluminium foil 1, be respectively equipped with one deck electrolytic paper 3 between the negative pole aluminium foil 2 and below the positive guide pin 6, positive guide pin 6 carrot-free one sides contact with electrolytic paper 3, positive guide pin 6 and negative guide pin 5 are back-to-back, the burr 4 of two guide pins is face-to-face, technology is with anodal aluminium foil 1 routinely, negative pole aluminium foil 2 and electrolytic paper 3 are reeled, impregnation is placed in the band bottom tube shape aluminum hull, with rubber plug sealed aluminum shell opener, make aluminium electrolytic capacitor.

Embodiment 2

As shown in Figure 3, be embodiment 2 schematic diagrames, at first positive guide pin 6 and negative guide pin 5 are selected face, with the tongue of positive guide pin 6 be located at anodal aluminium foil 1 below, jagged one side contacts with the paper tinsel face of anodal aluminium foil 1, with the tongue of negative guide pin 5 be located at negative pole aluminium foil 2 above, jagged one side contacts with the paper tinsel face of negative pole aluminium foil 2, anodal aluminium foil 1, between the negative pole aluminium foil 2 and positive guide pin 6 below be respectively equipped with one deck electrolytic paper 3, positive guide pin 6 contacts with electrolytic paper 3 respectively with negative guide pin 5 carrot-free one sides, positive guide pin 6 and negative guide pin 5 are up equidirectional, the burr 4 of two guide pins is face-to-face, and technology is with anodal aluminium foil 1 routinely, negative pole aluminium foil 2 and electrolytic paper 3 are reeled, and impregnation is placed in the band bottom tube shape aluminum hull, with rubber plug sealed aluminum shell opener, make aluminium electrolytic capacitor.

Embodiment 3

As shown in Figure 4, be embodiment 3 schematic diagrames, at first positive guide pin 6 and negative guide pin 5 are selected face, with the tongue of positive guide pin 6 be located at anodal aluminium foil 1 below, jagged one side contacts with the paper tinsel face of anodal aluminium foil 1, with the tongue of negative guide pin 5 be located at negative pole aluminium foil 2 above, jagged one side contacts with the paper tinsel face of negative pole aluminium foil 2, anodal aluminium foil 1, between the negative pole aluminium foil 2 and positive guide pin 6 below be respectively equipped with one deck electrolytic paper 3, positive guide pin 6 and negative guide pin 5 are face-to-face, the burr 4 of two guide pins is face-to-face, technology is with anodal aluminium foil 1 routinely, negative pole aluminium foil 2 and electrolytic paper 3 are reeled, impregnation is placed in the band bottom tube shape aluminum hull, with rubber plug sealed aluminum shell opener, makes aluminium electrolytic capacitor.

Embodiment 4

As shown in Figure 5, be embodiment 4 schematic diagrames, at first positive guide pin 6 and negative guide pin 5 are selected face, with the tongue of positive guide pin 6 be located at anodal aluminium foil 1 below, jagged one side contacts with the paper tinsel face of anodal aluminium foil 1, with the tongue of negative guide pin 5 be located at negative pole aluminium foil 2 above, jagged one side contacts with the paper tinsel face of negative pole aluminium foil 2, anodal aluminium foil 1, between the negative pole aluminium foil 2 and positive guide pin 6 below be respectively equipped with one deck electrolytic paper 3, negative guide pin 5 carrot-free one sides contact with electrolytic paper 3 respectively, positive guide pin 6 and negative guide pin 5 are down equidirectional, the burr 4 of two guide pins is that technology is with anodal aluminium foil 1 routinely face-to-face, negative pole aluminium foil 2 and electrolytic paper 3 are reeled, and impregnation is placed in the band bottom tube shape aluminum hull, with rubber plug sealed aluminum shell opener, make aluminium electrolytic capacitor.

Claims

1. alminium electrolytic condenser that reduces point discharge phenomenon, it is characterized in that, comprise positive guide pin (6), the tongue of positive guide pin (6) be located at anodal aluminium foil (1) below, the one side of jagged (4) contacts with the paper tinsel face of anodal aluminium foil (1), the tongue of negative guide pin (5) be located at negative pole aluminium foil (2) above, the one side of jagged (4) contacts with the paper tinsel face of negative pole aluminium foil (2), anodal aluminium foil (1), be respectively equipped with one deck electrolytic paper (3) between the negative pole aluminium foil (2) and below the positive guide pin (6), the positive carrot-free one side of guide pin (6) contacts with electrolytic paper (3), positive guide pin (6) and negative guide pin (5) back-to-back, the burr of two guide pins (4) is face-to-face.

2. a kind of aluminium electrolytic capacitor that reduces point discharge phenomenon according to claim 1 is characterized in that, described positive guide pin (6) and negative guide pin (5) are up equidirectional, and the burr of two guide pins (4) is face-to-face.

3. a kind of aluminium electrolytic capacitor that reduces point discharge phenomenon according to claim 1 is characterized in that, described positive guide pin (6) and negative guide pin (5) are face-to-face, and the burr of two guide pins (4) is face-to-face.

4. a kind of manufacturing process of aluminum electrolytic capacitor that reduces point discharge phenomenon according to claim 1, it is characterized in that, described positive guide pin (6) contacts with electrolytic paper (3) respectively with the carrot-free one side of negative guide pin (5), positive guide pin (6) and negative guide pin (5) are down equidirectional, and the burr of two guide pins (4) is face-to-face.