CN212303425U

CN212303425U - Aluminum electrolytic capacitor capable of effectively avoiding bursting

Info

Publication number: CN212303425U
Application number: CN202020891847.4U
Authority: CN
Inventors: 汤小荣
Original assignee: Dongguan Jierong Film Technology Co ltd
Current assignee: Dongguan Jierong Film Technology Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-05
Anticipated expiration: 2030-05-25

Abstract

The utility model discloses an aluminum electrolytic capacitor that can effectively avoid bursting, including explosion-proof shell, explosion-proof shell's inner chamber is fixed to inlay and is equipped with the limiting plate, the inside cover of limiting plate is equipped with the aluminum hull, electrolytic device is installed to the inner chamber of aluminum hull, explosion-proof shell's top inner chamber is fixed to bond has the rubber buffer, the through-hole has been seted up to the avris at rubber buffer top, a plurality of spacing holes have been seted up at the middle part of rubber buffer, the inner chamber in spacing hole is fixed to be inlayed and is equipped with the connecting rod, the equal fixedly connected with slide bar in bottom both sides of connecting rod, the top. The utility model discloses utilize the design of screens board, when condenser inside temperature or pressure were too high, the gas of inside electrolyte evaporation will be toward rising, strikes spacing downthehole portion's connecting rod, and the connecting rod drives the screens board and shifts up, spacing hole and the breaking away from of screens board make, and a plurality of spacing holes can be opened, and the inside heat of condenser and gas give off to the external world through spacing hole.

Description

Aluminum electrolytic capacitor capable of effectively avoiding bursting

Technical Field

The utility model relates to the field of aluminum electrolytic capacitors, in particular to an aluminum electrolytic capacitor capable of effectively avoiding bursting.

Background

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, the aluminum electrolytic capacitor is steadily increased in the field of traditional consumer electronics, and 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, but the internal temperature of the capacitor is overhigh during working, so that the aluminum shell is deformed, meanwhile, the evaporation of the electrolyte causes the internal pressure of the aluminum shell to be overhigh, the capacitor bursting phenomenon easily occurs, and the welding part of leading out electrode negative and positive electrode foils is also easily heated and broken, so that the internal circuit of the capacitor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an aluminum electrolytic capacitor which can effectively avoid bursting so as to solve the problems in the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an aluminum electrolytic capacitor that can effectively avoid bursting, includes explosion-proof shell, explosion-proof shell's the fixed limiting plate that inlays of inner chamber, the inside cover of limiting plate is equipped with the aluminum-clad, electrolytic device is installed to the inner chamber of aluminum-clad, explosion-proof shell's the fixed rubber buffer that bonds of top inner chamber, the through-hole has been seted up to the avris at rubber buffer top, a plurality of spacing holes have been seted up at the middle part of rubber buffer, the fixed connecting rod that is equipped with of inner chamber in spacing hole, the equal fixedly connected with slide bar in bottom both sides of connecting rod, the top fixedly connected with screens board of connecting rod, the screens board is the U-shaped, just screens.

Preferably, the electrolytic device comprises an anode foil, an electrolytic paper and a cathode foil, wherein the anode foil and the cathode foil are separated by the electrolytic paper, and the anode foil, the electrolytic paper and the cathode foil are in a spiral structure and are positioned in the electrolyte in the inner cavity of the aluminum shell.

Preferably, the top ends of the anode foil and the cathode foil are fixedly welded with connecting pipes, the inner cavities of the two connecting pipes are fixedly embedded with extraction electrodes, and the two extraction electrodes penetrate through the two through holes respectively.

Preferably, a plurality of spouts, a plurality of are seted up to the inner chamber in rubber buffer middle part the slide bar is with a plurality of spout sliding connection, and the spout degree of depth is less than the length of connecting rod.

Preferably, the rubber buffer material is high temperature resistant and corrosion resistant rubber material, just spacing hole is in the middle part equidistance distribution of rubber buffer.

Preferably, the length of the explosion-proof shell is equal to the sum of the lengths of the rubber plug and the aluminum shell, the limiting plate is made of a high-temperature-resistant insulating plastic plate, and the height of the limiting plate is the same as that of the aluminum shell.

The utility model discloses a technological effect and advantage:

(1) the utility model discloses utilize the design of screens board and connecting rod, when condenser inside temperature or pressure are too high, because the limiting plate that the aluminium shell outside set up makes the aluminium shell can not expand, the gas of inside electrolyte evaporation will go up, through the connecting rod of spacing downthehole portion of spacing hole impact, the connecting rod drives the screens board and shifts up, spacing hole and the breaking away from of screens board make simultaneously, a plurality of spacing holes in the middle part of the rubber buffer can be opened, the heat and the gas in the condenser give off to the external world through spacing hole;

(2) the utility model discloses utilize the design of high temperature resistant limiting plate, solved the capacitor live time local or the whole circumstances of inflation appear for a long time, the connecting rod passes through the slide bar restriction in the rubber buffer inner chamber simultaneously, and the design of explosion-proof shell is combined again, and when the slide bar roll-off still can not relieve the high pressure in the condenser, the pressure that elasticity explosion-proof shell bore also can reduce, and the limited circumstances of avoiding the condenser to burst takes place;

(3) the utility model discloses utilize the design of connecting pipe, extraction electrode is not direct and negative and positive electrode foil contact, prevents the inside high temperature of condenser, and the junction fuses, and positive and negative extraction electrode bottom contacts the short circuit that causes in the condenser is inside to the strong electric current damage condenser of having avoided the production of opening a circuit leads to the condition emergence that the condenser bursts by force even.

Drawings

Fig. 1 is the overall internal structure diagram of the present invention.

Fig. 2 is a schematic view of the overall external structure of the present invention.

Fig. 3 is a schematic structural diagram of the present invention a.

Fig. 4 is a schematic structural diagram of the present invention B.

Fig. 5 is a schematic view of the slide bar structure of the present invention.

In the figure: 1. an explosion-proof housing; 2. a limiting plate; 3. a connecting pipe; 4. leading out an electrode; 5. a rubber plug; 6. a through hole; 7. an anode foil; 8. electrolyzing paper; 9. a cathode foil; 10. a limiting hole; 11. a clamping plate; 12. a connecting rod; 13. a slide bar; 14. and (4) an aluminum shell.

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.

The utility model provides an aluminum electrolytic capacitor capable of effectively avoiding bursting as shown in figures 1-5, which comprises an explosion-proof shell 1, wherein the explosion-proof shell 1 is made of elastic material, a limiting plate 2 is fixedly embedded in the inner cavity of the explosion-proof shell 1, the limiting plate 2 is cylindrical in inner cavity, an aluminum shell 14 is sleeved inside the limiting plate 2, the length of the explosion-proof shell 1 is equal to the sum of the lengths of a rubber plug 5 and the aluminum shell 14, the limiting plate 2 is made of high temperature resistant insulating plastic plate, the diameter of the outer wall of the aluminum shell 14 is equal to the diameter of the inner cavity of the limiting plate 2, the height of the limiting plate 2 is equal to the height of the aluminum shell 14, the inner cavity of the aluminum shell 14 is filled with electrolyte, an electrolytic device is arranged in the inner cavity of the top of the explosion-proof shell 1, a rubber plug 5 is fixedly bonded in the inner cavity of the top of the explosion-proof shell 1, the middle part of the rubber plug 5 is provided with a plurality of limiting holes 10, the rubber plug 5 is made of high-temperature-resistant and corrosion-resistant rubber materials, the limiting holes 10 penetrate through the rubber plug 5 and are distributed in the middle part of the rubber plug 5 at equal intervals, the inner cavity of each limiting hole 10 is fixedly embedded with a connecting rod 12, two sides of the bottom of each connecting rod 12 are fixedly connected with sliding rods 13, the inner cavity of the middle part of the rubber plug 5 is provided with a plurality of sliding grooves, the sliding grooves are located on two sides of each limiting hole 10, the sliding rods 13 are slidably connected with the sliding grooves, the length of each sliding rod 13 is equal to the width of each sliding groove, the depth of each sliding groove is smaller than that of each connecting rod 12, the length of each connecting rod 12 is half of the height of each limiting hole 10;

the electrolytic device comprises an anode foil 7, electrolytic paper 8 and a cathode foil 9, the anode foil 7, the heights of the electrolytic paper 8 and the cathode foil 9 are the same as the height of the aluminum shell 14, the electrolytic paper 8 separates the anode foil 7 from the cathode foil 9, the anode foil 7, the electrolytic paper 8 and the cathode foil 9 are both in a spiral structure and are positioned in electrolyte in the inner cavity of the aluminum shell 14, connecting pipes 3 are fixedly welded on the top ends of the anode foil 7 and the cathode foil 9, leading-out electrodes 4 are fixedly embedded in the inner cavities of the two connecting pipes 3, the two leading-out electrodes 4 penetrate through the two through holes 6 respectively, rubber pads are bonded at the joints of the leading-out electrodes 4 and the through holes 6, and external dust is prevented from entering the capacitor.

The utility model discloses the theory of operation:

an operator firstly welds two extraction electrodes 4 in the inner cavities of two connecting pipes 3 respectively, then welds the top ends of an anode foil 7 and a cathode foil 9 at the bottoms of the two connecting pipes 3 respectively, then coils the welded anode foil 7 and cathode foil 9 into a spiral shape and arranges the spiral shape in the inner cavity of an aluminum shell 14, then arranges an aluminum shell 14 in a limiting plate 2, then arranges the limiting plate 2 in an explosion-proof shell 1, then aligns a through hole 6 at the side of a rubber plug 5 with the extraction electrode 4, bonds the rubber plug 5 with the top of the explosion-proof shell 1 through an adhesive, and finally presses a clamping plate 11 to push a sliding rod 13 to enable the clamping plate 11 to be butted with a limiting hole 10 to complete assembly, if high-temperature evaporation electrolyte is generated in the capacitor during working, the pressure inside the capacitor is increased, the limiting plate 2 extrudes the aluminum shell 14 to prevent the aluminum shell 14, connecting rod 12 drives screens board 11 and breaks away from spacing hole 10, spacing hole 10 is opened the gap that produces and is reached and give off condenser internal pressure and high temperature's effect this moment, the fixed action of slide bar 13 has prevented that pressure from being too big extrudes rubber buffer 5 inner chamber with connecting rod 12 simultaneously, if the temperature lasts too high make connecting pipe 3 drop with the junction of positive pole paper tinsel 7 and negative pole paper tinsel 9, two lead-out electrodes 4 can not contact and produce the short circuit in the condenser inside, the condition that has avoided the short circuit to produce the heavy current and cause the condenser explosion takes place.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard parts that use all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing.

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 capable of effectively avoiding explosion comprises an explosion-proof shell (1), and is characterized in that: the fixed limiting plate (2) that inlays of inner chamber of explosion-proof shell (1), the inside cover of limiting plate (2) is equipped with aluminum-clad (14), electrolytic device is installed to the inner chamber of aluminum-clad (14), the top inner chamber of explosion-proof shell (1) is fixed to bond has rubber buffer (5), through-hole (6) have been seted up to the avris at rubber buffer (5) top, a plurality of spacing holes (10) have been seted up at the middle part of rubber buffer (5), the inner chamber of spacing hole (10) is fixed to be inlayed and is equipped with connecting rod (12), the equal fixedly connected with slide bar (13) in bottom both sides of connecting rod (12), the top fixedly connected with screens board (11) of connecting rod (12), screens board (11) are the U-shaped, just screens board (11) and spacing hole (10) looks adaptation.

2. The aluminum electrolytic capacitor of claim 1, wherein the aluminum electrolytic capacitor is effective to avoid bursting, and wherein: the electrolytic device comprises an anode foil (7), electrolytic paper (8) and a cathode foil (9), wherein the anode foil (7) and the cathode foil (9) are separated by the electrolytic paper (8), and the anode foil (7), the electrolytic paper (8) and the cathode foil (9) are in a spiral structure and are positioned in electrolyte in the inner cavity of the aluminum shell (14).

3. The aluminum electrolytic capacitor of claim 2, wherein the aluminum electrolytic capacitor is effective to avoid the burst, and comprises: the equal fixed welding in top of positive pole paper tinsel (7) and negative pole paper tinsel (9) has connecting pipe (3), two the inner chamber of connecting pipe (3) is all fixed to be inlayed and is equipped with extraction electrode (4), and two extraction electrode (4) run through two through-holes (6) respectively.

4. The aluminum electrolytic capacitor of claim 1, wherein the aluminum electrolytic capacitor is effective to avoid bursting, and wherein: a plurality of chutes are formed in the inner cavity in the middle of the rubber plug (5), the sliding rods (13) are connected with the chutes in a sliding mode, and the depth of each chute is smaller than the length of each connecting rod (12).

5. The aluminum electrolytic capacitor of claim 1, wherein the aluminum electrolytic capacitor is effective to avoid bursting, and wherein: the rubber buffer (5) is made of high-temperature-resistant and corrosion-resistant rubber materials, and the limiting holes (10) are distributed in the middle of the rubber buffer (5) at equal intervals.

6. The aluminum electrolytic capacitor of claim 1, wherein the aluminum electrolytic capacitor is effective to avoid bursting, and wherein: the length of explosion-proof shell (1) equals the sum of the length of rubber buffer (5) and aluminum hull (14), the material of limiting plate (2) is high temperature resistant insulating plastic board, just the height of limiting plate (2) is the same with the height of aluminum hull (14).