CN211376427U

CN211376427U - Aluminum electrolytic capacitor with long service life

Info

Publication number: CN211376427U
Application number: CN202020421832.1U
Authority: CN
Inventors: 苏镇顺
Original assignee: Shenzhen Donglianfa Technology Co ltd
Current assignee: Shenzhen Donglianfa Technology Co ltd
Priority date: 2020-03-28
Filing date: 2020-03-28
Publication date: 2020-08-28
Anticipated expiration: 2030-03-28

Abstract

The utility model relates to the technical field of capacitors, and a long service life's aluminum electrolytic capacitor is disclosed, including first aluminum hull, first aluminum hull top is equipped with first opening, the inside second aluminum hull that is equipped with of first aluminum hull, the first aluminum hull outside is extended through first opening in second aluminum hull top, first opening internal fixation is equipped with the sealing washer, the sealing washer cup joints with second aluminum hull is fixed, second aluminum hull external surface fixation has cup jointed the spiral backing sheet. This long service life's aluminum electrolytic capacitor is through setting up the second aluminum hull inside first aluminum hull to fill the coolant liquid between first aluminum hull and second aluminum hull, set up the spiral backing sheet on second aluminum hull surface simultaneously, both can act as radiating fin, improve the heat dispersion of first aluminum hull, prolonged the life of condenser, can provide the support to the second aluminum hull simultaneously, avoid second aluminum hull extrusion deformation, improved the security.

Description

Aluminum electrolytic capacitor with long service life

Technical Field

The utility model relates to the technical field of capacitors, in particular to an aluminum electrolytic capacitor with long service life.

Background

The capacitor is an energy storage element, is used for tuning, filtering, coupling, bypassing, energy conversion and time delay in a circuit, the aluminum electrolytic capacitor is a capacitor which is made by taking an aluminum cylinder as a negative electrode, liquid electrolyte is filled in the aluminum cylinder, and a bent aluminum strip is inserted as a positive electrode, so that the capacitor is called as an aluminum electrolytic capacitor, and is a general electrolytic capacitor which is made of aluminum materials and has good electrical property, wide application range and high reliability.

The existing capacitor has limited heat dissipation effect, and heat damage is easily caused by self heating and external working environment, so that the service life of the capacitor is shortened.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a long service life's aluminum electrolytic capacitor possesses the radiating effect good, and stable in structure advantage such as firm has solved present condenser radiating effect limited, and self generate heat and external operational environment all easily causes the heat damage, has reduced the life's of condenser problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an aluminum electrolytic capacitor with long service life comprises a first aluminum shell, a first opening is arranged at the top of the first aluminum shell, a second aluminum shell is arranged in the first aluminum shell, the top of the second aluminum shell extends to the outer side of the first aluminum shell through a first opening, a sealing ring is fixedly arranged in the first opening, the sealing ring is fixedly sleeved with a second aluminum shell, a spiral supporting sheet is fixedly sleeved on the outer surface of the second aluminum shell, a cooling liquid is filled between the second aluminum shell and the inner wall of the first aluminum shell, a second opening is arranged at the top of the second aluminum shell, a sealing block is fixedly connected in the second opening, a heat-conducting silica gel sheet and a core are arranged in the second aluminum shell, the heat-conducting silica gel sheet is fixedly connected with the inner bottom wall of the second aluminum shell, the core is positioned at the top of the heat-conducting silica gel sheet, and two lead wires are fixedly arranged at the top of the core, and the top ends of the two lead wires penetrate through the sealing block and extend to the top of the second aluminum shell.

Preferably, the bottom of the second aluminum shell is provided with a groove, the inner bottom wall of the first aluminum shell is fixedly connected with a guide block, and the top end of the guide block is located inside the groove.

Preferably, the spiral supporting sheet is positioned at the bottom of the sealing ring, and the width of the cross section of the outer edge of the spiral supporting sheet is slightly smaller than the distance between the second aluminum shell and the inner wall of the first aluminum shell.

Preferably, the two leads include a positive lead and a negative lead, and the length of the positive lead is greater than that of the negative lead.

Preferably, the sealing ring and the sealing block are both made of rubber materials.

Compared with the prior art, the utility model provides a long service life's aluminum electrolytic capacitor possesses following beneficial effect:

1. this long service life's aluminum electrolytic capacitor is through setting up the second aluminum hull inside first aluminum hull to fill the coolant liquid between first aluminum hull and second aluminum hull, set up the spiral backing sheet on second aluminum hull surface simultaneously, both can act as radiating fin, improve the heat dispersion of first aluminum hull, prolonged the life of condenser, can provide the support to the second aluminum hull simultaneously, avoid second aluminum hull extrusion deformation, improved the security.

2. This long service life's aluminum electrolytic capacitor through setting up recess and guide block, can carry on spacingly to the second aluminum hull, and the assembly of the first aluminum hull of being convenient for and second aluminum hull has avoided the second aluminum hull to reciprocate in first aluminum hull inside simultaneously, has improved stability, is connected with heat conduction silica gel piece through diapire fixed surface in the second aluminum hull, has further improved the radiating effect of second aluminum hull.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the heat-conducting silica gel sheet of the present invention;

fig. 3 is a schematic structural view of the spiral support sheet of the present invention.

Wherein: 1. a first aluminum case; 2. a second aluminum case; 3. a seal ring; 4. a spiral support sheet; 5. cooling liquid; 6. a sealing block; 7. a heat-conducting silica gel sheet; 8. a core; 9. a groove; 10. a guide block; 11. a positive electrode lead; 12. and a negative electrode lead.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an aluminum electrolytic capacitor with a long service life includes a first aluminum case 1, in practical applications, a PET environmental protection adhesive is disposed on an outer surface of the first aluminum case 1, the PET environmental protection adhesive displays data related to the capacitor, a first opening is disposed at a top of the first aluminum case 1, a second aluminum case 2 is disposed inside the first aluminum case 1, the second aluminum case 2 and the second aluminum case 2 are both configured as cylinders, a top of the second aluminum case 2 extends to an outer side of the first aluminum case 1 through the first opening, a seal ring 3 is fixedly disposed in the first opening, the seal ring 3 is fixedly sleeved with the second aluminum case 2, the first opening is sealed by the seal ring 3 to prevent an internal cooling liquid 5 from flowing out, a spiral support sheet 4 is fixedly sleeved on an outer surface of the second aluminum case 2, the spiral support sheet 4 is disposed at a bottom of the seal ring 3, a cross-sectional width of an outer edge of the spiral support sheet 4 is slightly smaller than a distance between the second aluminum case 2 and an, the cooling liquid 5 is filled between the second aluminum shell 2 and the inner wall of the first aluminum shell 1, the spiral support sheet 4 can be used as a radiating fin to enhance the heat conduction of the second aluminum shell 2, a water channel can be formed by arranging the spiral support sheet to be spiral, the cooling liquid 5 in the second aluminum shell is communicated, the radiating performance is improved, the radiating performance is better and uniform, in practical application, the outer edge of the spiral support sheet 4 just contacts the inner wall of the first aluminum shell 1 to provide support when the first aluminum shell 1 bears the extrusion of the outer wall, the strength is improved, the damage probability is reduced, the top of the second aluminum shell 2 is provided with a second opening, a sealing block 6 is fixedly connected in the second opening, a heat-conducting silica gel sheet 7 and a core 8 are arranged in the second aluminum shell 2, the heat-conducting silica gel sheet 7 is fixedly connected with the inner bottom wall of the second aluminum shell 2, in practical application, a circular convex block is formed on the inner bottom wall of the second, the heat-conducting silica gel sheet 7 is set to be annular and sleeved by a circular convex block, the heat-conducting silica gel sheet 7 can fill gaps, a heat channel between a heating part and a radiating part is opened, the heat transfer efficiency is effectively improved, the core 8 is positioned at the top of the heat-conducting silica gel sheet 7, two leads are fixedly arranged at the top of the core 8 and comprise an anode lead 11 and a cathode lead 12, the length of the anode lead 11 is greater than that of the cathode lead 12, the top ends of the two leads penetrate through the sealing block 6 and extend to the top of the second aluminum shell 2, the sealing block 6, the core 8, the anode lead 11 and the cathode lead 12 have the same functions similar to the related part structures of the existing aluminum electrolytic capacitor, the bottom of the second aluminum shell 2 is provided with a groove 9, the inner bottom wall of the first aluminum shell 1 is fixedly connected with a guide block 10, the top end of the guide block 10 is positioned inside the groove 9, insert recess 9 through guide block 10 in, the location when being convenient for installation production avoids first aluminum hull 1 to reciprocate, and sealing washer 3 and seal block 6 are made by rubber material.

When the cooling device is used, heat generated by the core 8 in the second aluminum shell 2 is conducted to the second aluminum shell 2, the heat of the second aluminum shell 2 is conducted to the spiral supporting sheet 4, the spiral supporting sheet 4 transmits the heat to the cooling liquid 5, so that a heat dissipation flow is realized, the cooling liquid 5 can be kept communicated by setting the shape to be spiral, the heat dissipation is relatively uniform and effective, and when the second aluminum shell 2 is extruded from the outside in the transportation or use process, the spiral supporting sheet 4 can provide a certain supporting effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An aluminum electrolytic capacitor with long service life, comprising a first aluminum case (1), characterized in that: the heat-conducting aluminum shell is characterized in that a first opening is formed in the top of the first aluminum shell (1), a second aluminum shell (2) is arranged in the first aluminum shell (1), the top of the second aluminum shell (2) extends to the outer side of the first aluminum shell (1) through the first opening, a sealing ring (3) is fixedly arranged in the first opening, the sealing ring (3) is fixedly sleeved with the second aluminum shell (2), a spiral supporting sheet (4) is fixedly sleeved on the outer surface of the second aluminum shell (2), a cooling liquid (5) is filled between the second aluminum shell (2) and the inner wall of the first aluminum shell (1), a second opening is formed in the top of the second aluminum shell (2), a sealing block (6) is fixedly connected in the second opening, a heat-conducting silica gel sheet (7) and a core (8) are arranged in the second aluminum shell (2), the heat-conducting silica gel sheet (7) is fixedly connected with the inner bottom wall of the second aluminum shell (2), and the core (8) is located at the top of the heat-conducting silica gel sheet (, two lead wires are fixedly arranged at the top of the core (8), and the top ends of the two lead wires penetrate through the sealing block (6) and extend to the top of the second aluminum shell (2).

2. The aluminum electrolytic capacitor with long service life according to claim 1, characterized in that: recess (9) have been seted up to second aluminum hull (2) bottom, bottom wall fixedly connected with guide block (10) in first aluminum hull (1), guide block (10) top is located inside recess (9).

3. The aluminum electrolytic capacitor with long service life according to claim 1, characterized in that: the spiral support sheet (4) is positioned at the bottom of the seal ring (3), and the width of the cross section of the outer edge of the spiral support sheet (4) is slightly smaller than the distance between the second aluminum shell (2) and the inner wall of the first aluminum shell (1).

4. The aluminum electrolytic capacitor with long service life according to claim 1, characterized in that: the two leads comprise a positive lead (11) and a negative lead (12), and the length of the positive lead (11) is greater than that of the negative lead (12).

5. The aluminum electrolytic capacitor with long service life according to claim 1, characterized in that: the sealing ring (3) and the sealing block (6) are both made of rubber materials.