CN212907424U

CN212907424U - Aluminum electrolytic capacitor

Info

Publication number: CN212907424U
Application number: CN202021894211.1U
Authority: CN
Inventors: 张业维; 赖书东; 林观兰; 余艳
Original assignee: Guangzhou Chinsan Electronic Co ltd
Current assignee: Guangzhou Chinsan Electronic Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-04-06
Anticipated expiration: 2030-09-02

Abstract

The utility model particularly discloses an aluminum electrolytic capacitor, which comprises an aluminum shell and an aluminum cover; a core cladding is arranged in the aluminum shell; a sealing cover is arranged between the core bag and the aluminum cover; the top of the core bag is provided with a pair of electrode foils which penetrate through the sealing cover and are in an L-shaped structure; the electrode foil is electrically connected with an electrode foil lead which penetrates out of the outer side of the aluminum cover; heat conducting filler is filled between the core package and the aluminum shell; the heat-conducting filler forms an annular groove at the side end of the core package; an annular buffer plate is arranged in the ring groove; the heat-conducting filler forms a straight groove at the bottom of the core package; and a strip-shaped buffer plate is arranged in the straight groove. This practicality can realize spacing to the core package, and the heat conduction filler can be with the heat transfer of core package to the aluminum hull and transmit to the external world, effectively guarantees that the core package uses in normal temperature range, and annular buffer board and bar buffer board can effectively reduce the range of vibration that the core package received to improve the anti-seismic performance of this condenser, make the core package can stable work all the time under the environment of vibrations.

Description

Aluminum electrolytic capacitor

Technical Field

The utility model relates to the technical field of capacitors, concretely relates to aluminum electrolytic capacitor.

Background

The capacitor is a conventional electric component and is widely used in various electric and electronic products, mainly in a noise filter of a power line, a digital line.

Various types of electrolytic capacitors are now well known, including aluminum electrolytic capacitors, and conventional aluminum electrolytic capacitors are produced by forming a laminate using an anode foil and a cathode foil with a separator interposed therebetween and then crimping the laminate to an electrolytic solution for impregnation. The capacitor that exists on the existing market simple structure, the radiating effect is poor and anti-seismic performance is low.

In order to overcome the defects, the technical problems to be solved by the invention are as follows: the aluminum electrolytic capacitor has the advantages of good buffering effect, strong shock resistance and quick heat dissipation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an aluminum electrolytic capacitor is provided, its buffering effect is good, and the shock resistance is strong, and the heat dissipation is fast, is fit for using widely.

An aluminum electrolytic capacitor comprises an aluminum shell and an aluminum cover; a core cladding is arranged in the aluminum shell; a sealing cover is arranged between the core bag and the aluminum cover; the top of the core bag is provided with a pair of electrode foils which penetrate through the sealing cover and are in an L-shaped structure; the electrode foil is electrically connected with an electrode foil lead which penetrates out of the outer side of the aluminum cover; heat conducting filler is filled between the core package and the aluminum shell; the heat-conducting filler forms an annular groove at the side end of the core package; an annular buffer plate is arranged in the ring groove; the heat-conducting filler forms a straight groove at the bottom of the core package; and a strip-shaped buffer plate is arranged in the straight groove.

Preferably, the cross section of the annular buffer plate is of a semicircular structure with an opening facing the inner side wall of the aluminum shell; the cambered surface of the annular buffer plate is connected with the side wall of the core bag in an abutting mode.

Further preferably, a first spring is arranged between the annular buffer plate and the side wall of the aluminum shell.

Preferably, the cross section of the strip-shaped buffer plate is of a semicircular structure with an opening facing the bottom of the aluminum shell; the cambered surface of the strip-shaped buffer plate is connected with the bottom surface of the core bag in an abutting mode.

Further preferably, a second spring is arranged between the strip-shaped buffer plate and the bottom of the aluminum shell.

Preferably, the outer surfaces of the aluminum shell and the aluminum cover are wrapped with insulating sleeves.

Further preferably, the insulating sleeve is a polyethylene or polyvinyl chloride heat-shrinkable tube sleeve.

Preferably, the heat conductive filler is a synthetic resin heat conductive material.

Has the advantages that: the utility model discloses an electrode foil of L shape structure passes sealed lid and realizes spacing to the core package top, and it has heat conduction filler to fill between core package and the aluminum hull can be with the heat transfer of core package to the aluminum hull and transmit to the external world, effectively guarantees that the core package uses in normal temperature range, and annular buffer board and bar buffer board can effectively reduce the range of vibration that the core package received for the core package can stable work all the time under the environment of vibrations, the utility model discloses buffering effect is good, and the shock resistance is strong, and the heat dissipation is fast, is fit for using widely.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1-an aluminum shell; 2-core package; 3-an aluminum cover; 4-a thermally conductive filler; 5-sealing cover; 6-electrode foil; 7-electrode foil lead; 8-ring groove; 9-a ring-shaped buffer plate; 10-a first spring; 11-straight groove; 12-a strip-shaped buffer plate; 13-a second spring; 14-insulating sleeve.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In the present invention, it should be noted that the terms "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in fig. 1, the utility model provides an aluminum electrolytic capacitor, which comprises an aluminum shell 1 and an aluminum cover 3; a core cladding 2 is arranged in the aluminum shell 1; a sealing cover 5 is arranged between the core bag 2 and the aluminum cover 3; the top of the core bag 2 is provided with a pair of electrode foils 6 which penetrate through the sealing cover 5 and are in an L-shaped structure; the electrode foil 6 is electrically connected with an electrode foil lead 7 which penetrates out of the outer side of the aluminum cover 3; a heat conducting filler 4 is filled between the core package 2 and the aluminum shell 1; the heat-conducting filler 4 forms an annular groove 8 at the side end of the core package 2; an annular buffer plate 9 is arranged in the annular groove 8; the heat-conducting filler 4 forms a straight groove 11 at the bottom of the core package 2; the straight flute 11 is equipped with bar buffer board 12, the utility model discloses an electrode foil 6 of L shape structure passes sealed lid 5 and realizes spacing to core package 2 top, it has heat conduction filler 4 to fill between core package 2 and the aluminum hull 1, heat conduction filler 4 can be with core package 2 heat transfer to aluminum hull 1 and transmit to the external world for the synthetic resin heat conduction material, effectively guarantee that core package 2 uses in normal temperature range, annular buffer board 9 and bar buffer board 12 can effectively reduce the range of vibration that core package 2 received, thereby the anti-seismic performance of this condenser has been improved, make core package 2 can stable work all the time under the environment of vibrations.

In a specific example of the present invention, the cross section of the annular buffer plate 9 is a semicircular structure with an opening facing the inner side wall of the aluminum shell 1; the cambered surface of the annular buffer plate 9 is in abutting connection with the side wall of the core package 2; be equipped with first spring 10 between the inside wall of annular buffer board 9 and aluminum hull 1, in the vibrations environment, the cambered surface of annular buffer board 9 is contradicted with the lateral wall of core package 2 and is connected and can not lead to the fact the damage to core package 2's surface, and the range of vibrations can effectively be cushioned through first spring 10, effectively improves the anti-seismic performance of this condenser, guarantees core package 2's normal use.

In a specific example of the present invention, the cross section of the strip-shaped buffer plate 12 is a semicircular structure with an opening facing the bottom of the aluminum shell 1; the cambered surface of the strip-shaped buffer plate 12 is in abutting connection with the bottom surface of the core package 2; be equipped with second spring 13 between the bottom of bar buffer board 12 and aluminum hull 1, in vibrations environment, the cambered surface of bar buffer board 9 is contradicted with the bottom surface of core package 2 and is connected and can not lead to the fact the damage to the bottom surface of core package 2, and the range that can effectively cushion vibrations through second spring 13 guarantees core package 2's normal use.

In some embodiments of the present invention, the outer surfaces of the aluminum shell 1 and the aluminum cover 3 are wrapped with an insulating sleeve 14; the insulating sleeve 14 is a polyethylene heat-shrinkable tube sleeve, the insulating sleeve 14 can effectively prevent the capacitor from discharging to damage other components, and the heat-shrinkable process is higher in processing efficiency.

The utility model discloses buffering effect is good, and the shock resistance is strong, and the heat dissipation is fast, is fit for using widely.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In this specification, the spring may be replaced by other elastic materials, such as a spring plate.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An aluminum electrolytic capacitor comprises an aluminum shell and an aluminum cover; the method is characterized in that: a core cladding is arranged in the aluminum shell; a sealing cover is arranged between the core bag and the aluminum cover; the top of the core bag is provided with a pair of electrode foils which penetrate through the sealing cover and are in an L-shaped structure; the electrode foil is electrically connected with an electrode foil lead which penetrates out of the outer side of the aluminum cover; heat conducting filler is filled between the core package and the aluminum shell; the heat-conducting filler forms an annular groove at the side end of the core package; an annular buffer plate is arranged in the ring groove; the heat-conducting filler forms a straight groove at the bottom of the core package; and a strip-shaped buffer plate is arranged in the straight groove.

2. The aluminum electrolytic capacitor as recited in claim 1, wherein the cross section of the annular buffer plate is a semicircular structure with an opening facing the inner side wall of the aluminum case; the cambered surface of the annular buffer plate is connected with the side wall of the core bag in an abutting mode.

3. The aluminum electrolytic capacitor of claim 2 wherein a first spring is disposed between the annular buffer plate and the sidewall of the aluminum case.

4. The aluminum electrolytic capacitor as recited in claim 1, wherein the cross section of the strip-shaped buffer plate is a semicircular structure with an opening facing the bottom of the aluminum case; the cambered surface of the strip-shaped buffer plate is connected with the bottom surface of the core bag in an abutting mode.

5. The aluminum electrolytic capacitor as recited in claim 4, wherein a second spring is disposed between the strip-shaped buffer plate and the bottom of the aluminum case.

6. The aluminum electrolytic capacitor of claim 1 wherein the outer surfaces of the aluminum case and the aluminum lid are covered with an insulating sheath.

7. The aluminum electrolytic capacitor of claim 6 wherein the insulating sleeve is a polyethylene or polyvinyl chloride heat shrinkable sleeve.

8. The aluminum electrolytic capacitor as recited in claim 1, wherein the thermally conductive filler is a synthetic resin thermally conductive material.