CN217655774U

CN217655774U - Shock-resistant aluminum electrolytic capacitor

Info

Publication number: CN217655774U
Application number: CN202123204861.6U
Authority: CN
Inventors: 邓明优; 陈小菊
Original assignee: Shenzhen Shenmaoxin Electronic Co ltd
Current assignee: Shenzhen Shenmaoxin Electronic Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-10-25
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses an antidetonation type aluminium electrolytic capacitor, including the aluminium casing to and locate the core package in the aluminium casing, the inner wall of aluminium casing is equipped with a plurality of spacing pieces, and is a plurality of spacing piece is the annular distribution and forms the spacing ring, the internal diameter of spacing ring is less than the external diameter of core package, the core package is located in the spacing ring and with spacing piece looks butt. The utility model provides an antidetonation type aluminium electrolytic capacitor, simple structure, anti-seismic performance is good.

Description

Anti-shock aluminum electrolytic capacitor

Technical Field

The utility model relates to the technical field of electrical components, specifically speaking relates to an antidetonation type aluminium electrolytic capacitor.

Background

The aluminum electrolytic capacitor generally comprises an aluminum shell and a core package in the aluminum shell, wherein the core package comprises anode foil, cathode foil and electrolytic paper wrapping the anode foil and the cathode foil, and the anode foil, the cathode foil and the electrolytic paper are fixedly placed in the aluminum shell through adhesive tapes after being rolled. In order to prevent the core package from shaking in the aluminum shell, the core package is fixed by filling glue between the core package and the inner wall of the aluminum shell in the prior art. Then, in the prior art, a glue filling process is used, and once the glue solidified matter is softened when being heated, the capacitor is vibrated outside when the glue solidified matter is softened, so that the capacitor core package and the capacitor body form relative motion, the capacitor conductive foil strip is very easy to break, and the broken capacitor conductive foil strip fails or is short-circuited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an antidetonation type aluminium electrolytic capacitor, simple structure, anti-seismic performance is good.

The utility model discloses an antidetonation type aluminium electrolytic capacitor adopts the technical scheme:

the utility model provides an antidetonation type aluminium electrolytic capacitor, includes the aluminium casing to and locate the core package in the aluminium casing, the inner wall of aluminium casing is equipped with a plurality of spacing pieces, and is a plurality of spacing piece is the annular distribution and forms the spacing ring, the internal diameter of spacing ring is less than the external diameter of core package, the core package is located in the spacing ring and with spacing piece looks butt.

As a preferred scheme, the number of the limiting pieces is at least three, and the three limiting pieces are uniformly distributed to form a limiting ring.

Preferably, the contact surface of the limiting sheet and the core package is far away from the core package recess and forms a curved surface.

Preferably, the height of the limiting sheet is not lower than that of the core bag, and two ends of the limiting sheet are respectively abutted against the top and the bottom of the chip.

Preferably, the aluminum shell further comprises a cover plate arranged at the sealing position of the aluminum shell, and the cover plate is provided with an electrode column.

The utility model discloses an antidetonation type aluminum electrolytic capacitor's beneficial effect is: a plurality of spacing pieces of aluminium casing inner wall are the annular and distribute and form the spacing ring, and the core package is placed in the aluminium casing back and is installed in the spacing ring, because the internal diameter of spacing ring is less than the external diameter of core package, therefore the outside of core package can be fine with spacing piece looks butt. The outer side of the core bag is tightly attached to the limiting sheet, so that the core bag is stably placed and is not easy to shake, the structure is simple, and the anti-seismic performance is improved.

Drawings

FIG. 1 is a schematic sectional view of the anti-seismic aluminum electrolytic capacitor of the present invention.

FIG. 2 is a schematic plan view of an aluminum case of the shock-resistant aluminum electrolytic capacitor of the present invention.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

referring to fig. 1 and 2, the anti-shock aluminum electrolytic capacitor includes an aluminum case 10, and a core pack 20 disposed in the aluminum case 10, wherein the core pack 20 includes a first anode foil, a first cathode foil, and a first electrolytic paper, and a plurality of limiting pieces 12 are disposed on an inner wall of the aluminum case 10. The plurality of limiting sheets 12 are distributed annularly to form a limiting ring, the inner diameter of the limiting ring is smaller than the outer diameter of the core package 20, and the core package 20 is arranged in the limiting ring and is abutted to the limiting sheets 12.

The plurality of limiting sheets 12 on the inner wall of the aluminum shell 10 are distributed annularly and form a limiting ring, the core package 20 is placed in the aluminum shell 10 and then is installed on the limiting ring, and the inner diameter of the limiting ring is smaller than the outer diameter of the core package 20, so that the outer side of the core package 20 can be well abutted to the limiting sheets 12. The outer side of the core bag 20 is tightly attached to the limiting sheet 12, so that the core bag 20 is stably placed and is not easy to shake, the structure is simple, and the anti-seismic performance is improved.

In this embodiment, the number of the limiting pieces 12 is at least three, and the three limiting pieces 12 are uniformly distributed to form a limiting ring. Specifically, a limiting ring is formed by at least three limiting pieces 12, and the core pack 20 can be better supported by the uniform distribution of the limiting pieces 12.

In this embodiment, the contact surface between the limiting sheet 12 and the core pack 20 is recessed away from the core pack 20 and forms a curved surface. Specifically, when the contact surface between the limiting piece 12 and the core pack 20 is a curved surface, the limiting piece 12 supports the core pack 20 through point contact because the outer side of the chip is a plane. Further, the height of the limiting sheet 12 is not lower than that of the core package 20, and two ends of the limiting sheet 12 are respectively abutted to the top and the bottom of the chip. Specifically, when the height of the limiting sheet 12 is equal to the height of the core pack 20, the limiting sheet 12 only limits the left and right positions of the core pack 20, and when the height of the limiting sheet 12 is higher than the height of the core pack 20, the core pack 20 is wrapped by the curved surface of the limiting sheet 12, so that the limiting sheet 12 also limits the upper and lower positions of the core pack 20.

In this embodiment, the anti-shock aluminum electrolytic capacitor further includes a cover plate 30 disposed at the sealing opening of the aluminum case 10, and the cover plate 30 is provided with an electrode post. Specifically, the cover plate 30 is fixed to an opening of the aluminum case 10 and seals the aluminum case 10. And the electrode posts on the cover plate 30 include a positive post 32 and a negative post 34, and are electrically connected with the positive lead 24 and the negative lead 26 of the core pack 20, respectively.

It should be finally noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit the scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides an antidetonation type aluminium electrolytic capacitor, includes the aluminium casing to and locate the core package in the aluminium casing, its characterized in that, the inner wall of aluminium casing is equipped with a plurality of spacing pieces, and is a plurality of spacing piece is the annular distribution and forms the spacing ring, the internal diameter of spacing ring is less than the external diameter of core package, the core package locate in the spacing ring and with spacing piece looks butt.

2. An anti-seismic aluminum electrolytic capacitor according to claim 1 wherein there are at least three said spacers, and said three spacers are evenly distributed to form a spacer ring.

3. An anti-seismic aluminum electrolytic capacitor according to claim 1, wherein the contact surface of the limiting sheet and the core package is recessed away from the core package and forms a curved surface.

4. An anti-shock aluminum electrolytic capacitor according to claim 3 wherein the height of the spacing piece is not lower than the height of the core package, and both ends of the spacing piece abut against the top and bottom of the chip, respectively.

5. An anti-shock aluminum electrolytic capacitor according to claim 1 further comprising a cover plate disposed at the seal of the aluminum case, said cover plate having electrode posts disposed thereon.