CN216054321U

CN216054321U - Aluminum electrolytic capacitor with waterproof function

Info

Publication number: CN216054321U
Application number: CN202122645848.8U
Authority: CN
Inventors: 刘建华
Original assignee: Guangdong Topaz Electronic Technology Co ltd
Current assignee: Guangdong Topaz Electronic Technology Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-03-15
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses an aluminum electrolytic capacitor with a waterproof function, which comprises a capacitor body, wherein an outer cover is arranged on the outer side of the capacitor body; a sealing gasket is fixedly connected to the top of the circumferential outer wall of the capacitor body, a sealing plate is fixedly connected to the position, located at the sealing gasket, of the inner wall of the outer cover, a connecting sleeve is fixedly connected to the position, located below the sealing gasket, of the circumferential outer wall of the capacitor body, the circumferential outer wall of the connecting sleeve is tightly attached to the inner wall of the outer cover, and the outer cover is in threaded connection with the connecting sleeve; a baffle is integrally formed on the circumferential outer wall at the top of the outer cover, a side plate is integrally formed below the baffle, and the baffle and the side plate are made of the same material as the outer cover; according to the utility model, the outer cover is arranged on the outer side of the capacitor body, and the baffle and the side plate arranged on the outer cover can form a water tank for storing liquid water, so that small liquid drops are prevented from flowing to the wiring terminal along the outer wall of the capacitor body.

Description

Aluminum electrolytic capacitor with waterproof function

Technical Field

The utility model relates to the technical field of capacitors, in particular to an aluminum electrolytic capacitor with a waterproof function.

Background

The aluminum electrolytic capacitor is made up by using aluminium cylinder as negative electrode, in which the liquid electrolyte is filled, and inserting a bent aluminium strip as positive electrode. While the aluminum electrolytic capacitor is steadily increased in the field of traditional consumer electronics, the application field of the aluminum electrolytic capacitor is expanded in various emerging fields such as energy-saving lamps, frequency converters, new energy sources and the like along with structure transformation and technical progress; the aluminum electrolytic capacitor is connected to a circuit board for use, the ambient temperature of long-term work is higher, therefore, hot air around the aluminum electrolytic capacitor can be liquefied on the surface of the capacitor, liquid drops formed by liquefaction can influence or damage the capacitor, and the aluminum electrolytic capacitor in the prior art is not provided with a waterproof structure, so that the service life of the aluminum electrolytic capacitor can be reduced. In view of this, we propose an aluminum electrolytic capacitor with waterproof function.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects, the utility model provides an aluminum electrolytic capacitor with a waterproof function.

The technical scheme of the utility model is as follows:

an aluminum electrolytic capacitor with a waterproof function comprises a capacitor body, wherein an outer cover is arranged on the outer side of the capacitor body; a sealing gasket is fixedly connected to the top of the circumferential outer wall of the capacitor body, a sealing plate is fixedly connected to the position, located at the sealing gasket, of the inner wall of the outer cover, a connecting sleeve is fixedly connected to the position, located below the sealing gasket, of the circumferential outer wall of the capacitor body, the circumferential outer wall of the connecting sleeve is tightly attached to the inner wall of the outer cover, and the outer cover is in threaded connection with the connecting sleeve; a baffle is integrally formed on the outer wall of the circumference of the top of the outer cover, a side plate is integrally formed below the baffle, and the baffle and the side plate are made of the same material as the outer cover.

Preferably, two binding posts are mounted on the top of the capacitor body.

As a preferable technical scheme, the buffer layer, the heat conduction layer and the hydrophobic layer are respectively bonded and fixed on the circumferential outer wall of the outer cover from inside to outside.

Preferably, the housing is made of aluminum and has a thickness of between 2 and 4 mm.

As a preferable technical scheme, the buffer layer is made of stainless steel and has the thickness of 0.5-0.8 mm.

Preferably, the heat conducting layer is made of copper and has a thickness of 0.5-0.8 mm.

As a preferable technical scheme, the hydrophobic layer is sprayed fluorocarbon coating, and the thickness of the hydrophobic layer is 0.2-0.4 mm.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the outer cover is arranged on the outer side of the capacitor body, and the baffle and the side plate arranged on the outer cover can form a water tank for storing liquid water, so that small liquid drops are prevented from flowing to the wiring terminal along the outer wall of the capacitor body.

2. The sealing gasket and the sealing plate are mutually extruded, so that the sealing performance is good, the hot air can be prevented from contacting with the outer wall of the capacitor body, and the hot air can not be directly liquefied on the outer wall of the capacitor body.

3. According to the utility model, the buffer layer and the heat conduction layer are arranged on the outer side of the outer cover, so that the hardness of the outer cover can be enhanced, and simultaneously, the heat generated by the capacitor body can be quickly led out, the temperature of the outer wall of the outer cover is close to that of the ambient air, the probability of liquefaction of hot air on the surface of the outer cover is further reduced, and meanwhile, the capacitor body can be prevented from being attached to the outer wall of the outer cover by spraying the hydrophobic layer on the outer wall of the hydrophobic layer, so that small liquid drops can quickly fall on the baffle.

Drawings

FIG. 1 is a top view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;

FIG. 4 is a bottom view of the overall structure of the present invention;

FIG. 5 is a schematic view of the structure of the sealing gasket and the sealing plate of the present invention;

fig. 6 is a schematic cross-sectional view of the housing according to the present invention.

The meaning of the individual reference symbols in the figures is:

a capacitor body 1; a terminal 10; a housing 2; a baffle 20; a side plate 21; a sealing gasket 3; a sealing plate 4; a connecting sleeve 5; a buffer layer 6; a heat conducting layer 7; a hydrophobic layer 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

an aluminum electrolytic capacitor with a waterproof function comprises a capacitor body 1, wherein an outer cover 2 is arranged on the outer side of the capacitor body 1; a sealing gasket 3 is fixedly connected to the top of the circumferential outer wall of the capacitor body 1, a sealing plate 4 is fixedly connected to the inner wall of the outer cover 2 at the sealing gasket 3, a connecting sleeve 5 is fixedly connected to the circumferential outer wall of the capacitor body 1 below the sealing gasket 3, the circumferential outer wall of the connecting sleeve 5 is tightly attached to the inner wall of the outer cover 2, and the outer cover 2 is in threaded connection with the connecting sleeve 5; a baffle 20 is integrally formed on the circumferential outer wall of the top of the outer cover 2, a side plate 21 is integrally formed below the baffle 20, and the baffle 20 and the side plate 21 are made of the same material as the outer cover 2.

It should be noted that, the aluminum electrolytic capacitor is mostly connected to a circuit board for use, and the ambient temperature of long-term operation is high, so the hot air around the aluminum electrolytic capacitor can be liquefied on the surface of the capacitor, and the small liquid drops formed by liquefaction can affect or damage the capacitor, in this embodiment, because the outer side of the capacitor body 1 is provided with the outer cover 2, and the baffle 20 and the side plate 21 are arranged on the outer cover 2, the baffle 20 and the side plate 21 can form a water tank for storing liquid water, so as to prevent the small liquid drops from flowing to the terminal 10 along the outer wall of the capacitor body 1; meanwhile, the sealing washer 3 and the sealing plate 4 are mutually extruded, so that the sealing performance is good, and the hot air can be prevented from contacting with the outer wall of the capacitor body 1; the setting of dustcoat 2 outside can strengthen its hardness and buffer layer 6 that can heat conduction and heat-conducting layer 7 that can quick heat conduction, can derive the heat that capacitor body 1 produced fast, can make the temperature of dustcoat 2 outer wall be close with the temperature of surrounding air like this, and then reduced the probability of hot-air at the liquefaction of dustcoat 2 surface, can avoid capacitor body 1 to adhere to on dustcoat 2 outer wall at 8 outer wall spraying hydrophobic layer 8 of hydrophobic layer simultaneously, make the droplet can be quick fall on baffle 20.

Preferably, two posts 10 are mounted on the top of the capacitor body 1.

Preferably, the buffer layer 6, the heat conducting layer 7 and the hydrophobic layer 8 are respectively bonded and fixed on the circumferential outer wall of the outer cover 2 from inside to outside.

Preferably, the housing 2 is made of aluminium and has a thickness of between 2 and 4 mm.

It should be noted that the outer cover 2 made of aluminum has good thermal conductivity, aluminum has good plasticity, and the processing is simple, and meanwhile, the surface of the simple aluminum is oxidized in the air to form an aluminum oxide protective film, so that the stability of the outer cover 2 is enhanced.

In the present embodiment, the buffer layer 6 is preferably made of stainless steel and has a thickness of 0.5-0.8 mm.

The buffer layer 6 made of stainless steel can increase the hardness of the cover 2, and further protect the capacitor body 1.

Preferably, the heat conducting layer 7 is made of copper and has a thickness of between 0.5 and 0.8 mm.

It should be noted that copper has good thermal conductivity and fast thermal conductivity.

Preferably, the hydrophobic layer 8 is a sprayed fluorocarbon coating with a thickness of 0.2-0.4 mm.

It is noted that fluorocarbon coatings are good hydrophobic coatings and are weatherable for long periods of time at elevated temperatures.

It is supplementary to need, the in-process that dustcoat 2 continuously twisted on adapter sleeve 5, closing plate 4 can contact with seal ring 3 to extrude seal ring 3, make its closing plate 4 inner wall and seal ring 3 in close contact with, provide good leakproofness, seal ring 3 in this embodiment closes closing plate 4 and is soft rubber material.

When the aluminum electrolytic capacitor with the waterproof function is used, firstly, the outer cover 2 is arranged on the outer side of the capacitor body 1, and the baffle 20 and the side plate 21 which are arranged on the outer cover 2 can form a water tank for storing liquid water, so that small liquid drops are prevented from flowing to the wiring terminal 10 along the outer wall of the capacitor body 1; seal ring 3 and closing plate 4 extrude each other simultaneously, the leakproofness is good, thereby can avoid hot-air and the contact of 1 outer wall of capacitor body, buffer layer 6 and heat-conducting layer 7 that the dustcoat 2 outside set up simultaneously, derive the heat that capacitor body 1 produced fast, make the temperature of 2 outer walls of dustcoat be close with the temperature of air on every side, and then reduced the probability of hot-air at 2 surface liquefaction of dustcoat, 8 outer wall spraying hydrophobic layer 8 in hydrophobic layer can avoid capacitor body 1 to adhere to on 2 outer walls of dustcoat simultaneously, make the droplet can be quick fall on baffle 20.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an aluminum electrolytic capacitor of waterproof function in area, includes capacitor body (1), its characterized in that: an outer cover (2) is arranged on the outer side of the capacitor body (1); a sealing gasket (3) is fixedly connected to the top of the circumferential outer wall of the capacitor body (1), a sealing plate (4) is fixedly connected to the inner wall of the outer cover (2) at the position where the sealing gasket (3) is located, a connecting sleeve (5) is fixedly connected to the circumferential outer wall of the capacitor body (1) below the sealing gasket (3), the circumferential outer wall of the connecting sleeve (5) is tightly attached to the inner wall of the outer cover (2), and the outer cover (2) is in threaded connection with the connecting sleeve (5); a baffle (20) is integrally formed on the circumferential outer wall of the top of the outer cover (2), a side plate (21) is integrally formed below the baffle (20), and the baffle (20) and the side plate (21) are made of the same material as the outer cover (2).

2. The aluminum electrolytic capacitor with waterproof function as claimed in claim 1, wherein: two binding posts (10) are installed at the top of the capacitor body (1).

3. The aluminum electrolytic capacitor with waterproof function as claimed in claim 1, wherein: the buffer layer (6), the heat conduction layer (7) and the hydrophobic layer (8) are respectively bonded and fixed on the circumferential outer wall of the outer cover (2) from inside to outside.

4. The aluminum electrolytic capacitor with waterproof function as claimed in claim 3, wherein: the housing (2) is made of aluminium and has a thickness of between 2 and 4 mm.

5. The aluminum electrolytic capacitor with waterproof function as recited in claim 4, wherein: the buffer layer (6) is made of stainless steel and has a thickness of 0.5-0.8 mm.

6. The aluminum electrolytic capacitor with waterproof function as recited in claim 5, wherein: the heat conduction layer (7) is made of copper, and the thickness of the heat conduction layer is 0.5-0.8 mm.

7. The aluminum electrolytic capacitor with waterproof function as recited in claim 6, wherein: the hydrophobic layer (8) is sprayed fluorocarbon coating with the thickness of 0.2-0.4 mm.