CN201256083Y

CN201256083Y - Aluminum electrolysis capacitor

Info

Publication number: CN201256083Y
Application number: CNU2008201891696U
Authority: CN
Inventors: 欧一兵; 邢少龙
Original assignee: DONGGUAN DONGYANGGUANG CAPACITY Co Ltd
Current assignee: DONGGUAN DONGYANGGUANG CAPACITY Co Ltd
Priority date: 2008-08-27
Filing date: 2008-08-27
Publication date: 2009-06-10
Anticipated expiration: 2018-08-27

Abstract

The utility model relates to the capacitor technical field, in particular to an aluminum electrolytic capacitor which comprises an aluminum shell, an anode foil guide pin, a cathode foil guide pin, an anode foil, a cathode foil and at least two electrolytic paper layers, wherein the anode foil guide pin, the cathode foil guide pin, the anode foil, the cathode foil and the electrolytic papers are disposed in the aluminum shell. One end of the anode foil guide pin is riveted with the anode foil while the other end extends out of the top of the aluminum shell, one end of the cathode foil guide pin is riveted with the cathode foil while the other end extends out of the top of the aluminum shell, the electrolytic paper disposed between the anode foil and the cathode foil is rolled into a cylindrical core, the lower end of the cathode foil extends downwards to be at least parallel to the lower end of the electrolytic paper, which allows direct contact between the cathode foil and the bottom of the aluminum shell, further, as the heat transmission effect of the aluminum shell is better than that of the electrolytic paper, heat generated in the aluminum electrolytic capacitor can be quickly radiated through the aluminum shell, thereby avoiding electrolyte drying due to internal overheating, and greatly prolonging the service life of the aluminum electrolytic capacitor.

Description

Aluminium electrolytic capacitor

Technical field:

The utility model relates to capacitor technology field, particularly aluminium electrolytic capacitor.

Background technology:

Existing aluminium electrolytic capacitor generally comprises anode foils guide pin, Cathode Foil guide pin, anode foils, Cathode Foil and two-layer at least electrolytic paper, anode foils guide pin and anode foils riveted joint, Cathode Foil guide pin and Cathode Foil riveted joint, electrolytic paper places between anode foils and the Cathode Foil, be wound into cylindric fuse, wherein the width of cathode and anode paillon foil is identical, causes short circuit in order to prevent the contact of cathode and anode aluminium foil, and the width of electrolytic paper is all made wideer than the width of cathode and anode aluminium foil.Aluminium electrolytic capacitor is in the application process of reality, can produce a large amount of heat in the aluminium electrolytic capacitor, existing aluminium electrolytic capacitor structure is because electrolytic paper is wideer than cathode and anode aluminium foil, and existence heat radiation defect of bad, cause a large amount of heats in aluminium electrolytic capacitor, to be accumulated, cause that easily the electrolyte in the aluminium electrolytic capacitor is withered, finally cause aluminium electrolytic capacitor to lose efficacy.

The utility model content:

The purpose of this utility model is to provide at the deficiencies in the prior art a kind of aluminium electrolytic capacitor of easy heat radiation.

For achieving the above object, the utility model adopts following technical scheme:

Aluminium electrolytic capacitor, comprise aluminum hull and be arranged on aluminum hull interior anode foils guide pin, Cathode Foil guide pin, anode foils, Cathode Foil and two-layer at least electrolytic paper, anode foils guide pin one end and anode foils riveted joint, its other end stretches out the aluminum hull top, Cathode Foil guide pin one end and Cathode Foil riveted joint, its other end stretches out the aluminum hull top, and electrolytic paper places between anode foils and the Cathode Foil and is wound into cylindric fuse, and the lower ends downward of Cathode Foil extends at least and flushes with the electrolytic paper lower end.

Described anode foils guide pin, Cathode Foil guide pin are cylindric.

Described anode foils guide pin, Cathode Foil guide pin are laminar.

Described anode foils guide pin presses with anode foils and is connected, and described Cathode Foil guide pin presses with Cathode Foil and is connected.

Described anode foils guide pin is connected with the riveting of anode foils thorn, and described Cathode Foil guide pin is connected with the riveting of Cathode Foil thorn.

The utility model beneficial effect is: the utility model comprises aluminum hull and is arranged on the interior anode foils guide pin of aluminum hull, the Cathode Foil guide pin, anode foils, Cathode Foil and two-layer at least electrolytic paper, anode foils guide pin one end and anode foils riveted joint, its other end stretches out the aluminum hull top, Cathode Foil guide pin one end and Cathode Foil riveted joint, its other end stretches out the aluminum hull top, electrolytic paper places between anode foils and the Cathode Foil and is wound into cylindric fuse, the lower ends downward of Cathode Foil extends at least and flushes with the electrolytic paper lower end, make Cathode Foil directly contact with the aluminum hull bottom, because the heat-transfer effect of aluminum hull will be got well much than the heat-transfer effect of electrolytic paper, thereby make the heat of generation of the utility model inside can distribute soon by aluminum hull, avoided having prolonged useful life of the present utility model greatly owing to over-heat inside causes that electrolyte is withered; In addition, the cathode and anode foil conducting needle adopts cylindric or laminar, the convenient use.

Description of drawings:

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

Fig. 2 is a local expanded view of the present utility model;

Fig. 3 is the local expanded view of another kind of execution mode of the present utility model.

Embodiment:

In order further to describe the utility model, illustrate with specific embodiment below in conjunction with accompanying drawing:

See accompanying drawing 1,2, aluminium electrolytic capacitor, comprise aluminum hull 1 and be arranged on anode foils guide pin 21 in the aluminum hull 1, Cathode Foil guide pin 22, anode foils 31, Cathode Foil 32 and two-layer at least electrolytic paper 4, described anode foils guide pin 21, Cathode Foil guide pin 22 is cylindric, anode foils guide pin 21 1 ends press with anode foils 31 and are connected, its other end stretches out aluminum hull 1 top, Cathode Foil guide pin 22 1 ends press with Cathode Foil 32 and are connected, its other end stretches out aluminum hull 1 top, electrolytic paper 4 places between anode foils 31 and the Cathode Foil 32 and is wound into cylindric fuse, the lower ends downward extension of Cathode Foil 32 flushes with electrolytic paper 4 lower ends, make Cathode Foil 32, electrolytic paper 4 directly contacts with aluminum hull 1 bottom simultaneously, because the heat-transfer effect of aluminum hull 1 will be got well much than the heat-transfer effect of electrolytic paper 4, the heat of the generation of the utility model inside is distributed apace by aluminum hull 1, avoided drying up the useful life of having improved aluminium electrolytic capacitor because over-heat inside causes electrolyte.

See Fig. 3, this is an another kind of execution mode of the present utility model, be with above-mentioned difference: described anode foils guide pin 21, Cathode Foil guide pin 22 are laminar, convenient clamping during laminar use, described anode foils guide pin 21 is connected with anode foils 31 thorn rivetings, described Cathode Foil guide pin 22 is connected with Cathode Foil 32 thorn rivetings, lower ends downward ratio of elongation electrolytic paper 4 lower ends of Cathode Foil 32 are long, the distance of elongation is 0.2cm, make Cathode Foil 32 directly contact, the heat of the generation of the utility model inside is distributed apace by aluminum hull 1 with aluminum hull 1 bottom.

In addition, used anode foils guide pin 21, the Cathode Foil guide pin 22 of the utility model also can replace with paillon foil, is called and leads paper tinsel.

Certainly, the embodiment of the above, it is better embodiment of the present utility model, be not to limit the utility model practical range, so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and are included in the utility model claim.

Claims

1, a kind of aluminium electrolytic capacitor, comprise aluminum hull (1) and be arranged on the interior anode foils guide pin (21) of aluminum hull (1), Cathode Foil guide pin (22), anode foils (31), Cathode Foil (32) and two-layer at least electrolytic paper (4), anode foils guide pin (21) one ends and anode foils (31) riveted joint, its other end stretches out aluminum hull (1) top, Cathode Foil guide pin (22) one ends and Cathode Foil (32) riveted joint, its other end stretches out aluminum hull (1) top, electrolytic paper (4) places between anode foils (31) and the Cathode Foil (32) and is wound into cylindric fuse, it is characterized in that: the lower ends downward of Cathode Foil (32) extends at least and flushes with electrolytic paper (4) lower end.

2, aluminium electrolytic capacitor according to claim 1 is characterized in that: described anode foils guide pin (21), Cathode Foil guide pin (22) are cylindric.

3, aluminium electrolytic capacitor according to claim 1 is characterized in that: described anode foils guide pin (21), Cathode Foil guide pin (22) are laminar.

4, aluminium electrolytic capacitor according to claim 1 is characterized in that: described anode foils guide pin (21) presses with anode foils (31) and is connected, and described Cathode Foil guide pin (22) presses with Cathode Foil (32) and is connected.

5, aluminium electrolytic capacitor according to claim 1 is characterized in that: described anode foils guide pin (21) is connected with the riveting of anode foils (31) thorn, and described Cathode Foil guide pin (22) is connected with the riveting of Cathode Foil (32) thorn.