CN211125385U

CN211125385U - Explosion-proof type paster electrolytic capacitor

Info

Publication number: CN211125385U
Application number: CN201922298233.5U
Authority: CN
Inventors: 郑永刚
Original assignee: Shenzhen Yuezhi Optoelectronic Technology Co ltd
Current assignee: Shenzhen Yuezhi Optoelectronic Technology Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-07-28
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses an explosion-proof type paster electrolytic capacitor, including casing, core package, pin and plug, the core package passes through the plug and sets up inside the casing, pin one end is connected with the core package, and the other end passes the plug and extends the casing, the casing is kept away from plug one end and has been seted up first explosion-proof groove, the casing is equipped with first explosion-proof groove one end and is equipped with the buffering cover, the buffering cover is located the housing face, just buffering cover and casing fixed connection, the venthole has been seted up at the buffering cover top, be equipped with the gasbag in the venthole, gasbag and the inside intercommunication of buffering cover, the gasbag is in not inflation state and contracts in the venthole. The utility model provides an explosion-proof type paster electrolytic capacitor plays explosion-proof while, can let people discover directly perceivedly whether electrolytic capacitor is inside to be damaged.

Description

Explosion-proof type paster electrolytic capacitor

Technical Field

The utility model relates to an electronic components technical field especially relates to an electrolytic capacitor.

Background

The electrolytic capacitor is one kind of capacitor, the metal foil is the positive electrode (aluminum or tantalum), the oxide film (aluminum oxide or tantalum pentoxide) close to the metal close to the positive electrode is the dielectric, the cathode is composed of conductive material, electrolyte (the electrolyte can be liquid or solid) and other materials, and the electrolytic capacitor is named because the electrolyte is the main part of the cathode.

In an electrolytic capacitor, internal components are broken down, a case is broken, heat dissipation is poor, or voltage is excessively high during operation, and thus, slurry explosion (boiling of an electrolyte in the capacitor causes breakage of the case and overflow of the electrolyte) occurs. Therefore, explosion-proof treatment needs to be carried out on the electrolytic capacitor, like the electrolytic capacitor with high safety in the prior patent application No. CN201820912974.0 with the patent name, the electrolytic capacitor with high safety is disclosed, and the electrolytic capacitor comprises a shell, an explosion-proof groove is formed on the top of the shell, an extension cap is sleeved on the upper part of the shell, and an auxiliary groove is formed on the top of the extension cap.

Above-mentioned electrolytic capacitor structure is through being equipped with explosion-proof groove at the casing top to at the upper portion cover be equipped with epitaxial cap, be equipped with the auxiliary tank at epitaxial cap top, play the effect of progressively buffering the pressure release through explosion-proof groove and auxiliary tank, prevent that electrolytic capacitor from directly exploding from inside. However, in the above structure, when the internal pressure of the electrolytic capacitor is too high to break the explosion-proof tank and the pressure is not enough to break the auxiliary tank on the extension cap, people cannot judge whether the electrolytic capacitor is damaged or not from the appearance, and people are troublesome to check one by one when replacing and maintaining. Therefore, there is a need for an explosion-proof capacitor that can provide explosion-proof effect and at the same time facilitate people to intuitively know whether the inside of the electrolytic capacitor is damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof type paster electrolytic capacitor plays explosion-proof while, can let people discover directly perceivedly that electrolytic capacitor is inside whether to damage.

The utility model discloses an explosion-proof type paster electrolytic capacitor adopts technical scheme is:

the utility model provides an explosion-proof type paster electrolytic capacitor, includes casing, core package, pin and plug, the core package passes through the plug and sets up inside the casing, pin one end is connected with the core package, and the other end passes the plug and extends the casing, the casing is kept away from plug one end and has been seted up first explosion-proof groove, the casing is equipped with first explosion-proof groove one end and is equipped with the buffering cover, the buffering cover is located the shell surface, just buffering cover and casing fixed connection, the venthole has been seted up at the buffering cover top, be equipped with the gasbag in the venthole, gasbag and the inside intercommunication of buffering cover, the gasbag is in not inflation state and contracts in the venthole.

Preferably, the surface of the buffer cover is provided with a plurality of second explosion-proof grooves which are arranged around the periphery of the air outlet hole.

Preferably, the housing is externally sleeved with a thermoplastic sleeve.

As the preferred scheme, the shell is close to plug one end still is equipped with and restraints the waist, it is at least one to restraint waist quantity.

As the preferred scheme, the waist portion of restrainting is equipped with a plurality of anchor strut towards plug one side, the anchor strut imbeds in the plug.

Preferably, the first explosion-proof groove is arranged in a structure in a shape like a Chinese character ' mi ', a cross or a Y '.

The utility model discloses an explosion-proof type paster electrolytic capacitor's beneficial effect is: the end of the shell far away from the rubber plug is provided with a first explosion-proof groove, the buffer cover is arranged at the end of the shell, which is provided with the first explosion-proof groove, when a core bag in the shell is in use, the pressure is increased due to the boiling of electrolyte, so that the air pressure and the electrolyte in the shell extrude the first explosion-proof groove with weaker inner wall of the shell, the first explosion-proof groove is broken, the pressure in the shell is released, the electrolyte and the air sprayed out of the shell enter the buffer cover, the top of the buffer cover is provided with an air outlet hole, and an air bag is arranged in the air outlet hole, so that when the air and the electrolyte enter the buffer cover, the pressure in the buffer cover is increased, the air is discharged from the air outlet hole, the air bag in the air outlet hole is extruded and introduced with the air, the expansion condition occurs, and the air bag can buffer and collect the air and the electrolyte flushed out of the shell, when having avoided when electrolytic capacitor to explode, its inside electrolyte causes the influence to other electronic components near, and people are carrying out the maintenance and are examining time measuring, can audio-visually whether the balloon through observing electrolytic capacitor buffering cover top is in the inflation state, perhaps whether extruded the venthole, can know clearly whether the inside condition of damage takes place of electrolytic capacitor, make maintenance and testing process convenient and fast more.

Drawings

FIG. 1 is a schematic structural view of an explosion-proof type chip electrolytic capacitor of the present invention;

FIG. 2 is a schematic diagram of an explosion structure of the explosion-proof type chip electrolytic capacitor of the present invention;

fig. 3 is a sectional view of the explosion-proof type chip 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, 2 and 3, an explosion-proof type chip electrolytic capacitor includes a housing 10, a core package 20, pins 30 and a rubber plug 40, wherein the core package 20 is disposed inside the housing 10 through the rubber plug 40, one end of the pin 30 is connected to the core package 20, and the other end of the pin passes through the rubber plug 40 and extends out of the housing 10. The core package 20 in the housing 10 is electrically connected to the circuit by the pin 30 structure, so that the electrolytic capacitor has a proper effect in the circuit. And the core package 20 in the casing 10 is fixed by the rubber plug 40, so as to prevent the leakage.

Be equipped with near the plug 40 one section at casing 10 and restraint waist 11, and restraint waist 11 quantity and be one at least, utilize and restraint waist 11 to further carry out screens extrusion fixed to plug 40 to make plug 40 and casing 10 closely cooperate more, avoid taking place the electrolyte condition appearance that leaks.

And be equipped with a plurality of anchor strut 12 towards plug 40 one side at beam waist portion 11, anchor strut 12 imbeds in plug 40, utilizes anchor strut 12 to further consolidate plug 40, imbeds inside plug 40 through anchor strut 12, when taking place to drop between plug 40 and the casing 10, utilizes anchor strut 12 to play the effect that blocks to plug 40, avoids plug 40 directly from dropping out from casing 10 to the degree of coordination and the fastness between reinforcing plug 40 and the casing 10.

The first explosion-proof groove 13 is formed in one end, away from the rubber plug 40, of the shell 10, the buffer cover 50 is arranged at one end, away from the rubber plug 40, of the shell 10, the buffer cover 50 is arranged on the surface of the shell 10 in a covering mode, the buffer cover 50 is fixedly connected with the shell 10, the air outlet hole 51 is formed in the top of the buffer cover 50, the air bag 52 is arranged in the air outlet hole 51, the air bag 52 is communicated with the inside of the buffer cover 50, and the air bag 52 is in an uninflated state and shrinks into the air.

When the core package 20 inside the casing 10 is in use, the pressure is increased due to boiling of the electrolyte, so that the first explosion-proof tank 13 with a weak inner wall of the casing 10 is pressed by the air pressure and the electrolyte inside the casing 10, and the first explosion-proof tank 13 is broken, so that the pressure inside the casing 10 is released.

The electrolyte and the gas sprayed from the housing 10 enter the buffer cover 50, the top of the buffer cover 50 is provided with an air outlet hole 51, and the air outlet hole 51 is internally provided with an air bag 52, so that when the gas and the electrolyte enter the buffer cover 50, the pressure inside the buffer cover 50 is increased, the gas is discharged from the air outlet hole 51, and the air bag 52 in the air outlet hole 51 is extruded and introduced by the gas to generate the expansion condition. And the air bag 52 can buffer and collect the gas and electrolyte flushed out from the shell 10, thereby avoiding the influence of the electrolyte inside the electrolytic capacitor on other nearby electronic components when the electrolytic capacitor explodes.

When people carry out maintenance and detection, whether the balloon at the top of the electrolytic capacitor buffer cover 50 is in an expansion state or not can be visually observed, or whether the balloon is extruded out of the air outlet 51 or not can be clearly known, so that the condition whether the inside of the electrolytic capacitor is damaged or not can be clearly known, and the maintenance and detection processes are more convenient and faster.

Above-mentioned first explosion-proof groove 13 is rice style of calligraphy, cross or Y style of calligraphy structure and sets up, adopts the mode of a plurality of recesses to set up first explosion-proof groove 13, can carry out better pressure release when casing 10 internal pressure is too big, prevents to cause the casing 10 explosion, causes the condition that the piece splashes.

In the above scheme, the surface of the buffer cover 50 is provided with a plurality of second explosion-proof grooves 53, and the second explosion-proof grooves 53 are arranged around the periphery of the air outlet 51. When the pressure in the buffer cover 50 is high, the second explosion-proof groove 53 can be squeezed to crack, so that gas is released from the crack of the second explosion-proof groove 53, and the whole shell 10 is prevented from being exploded into a plurality of fragments to influence other electronic components.

The outside cover of casing 10 is equipped with thermoplastic cover 14, utilizes thermoplastic cover 14 to play the effect of protection to the casing 10 surface, receives fish tail or corruption on the contrary to can play insulating effect, avoid causing the influence to other electronic components.

The utility model provides an explosion-proof type paster electrolytic capacitor, the casing is kept away from plug one end and is seted up first explosion-proof groove, and the housing is set up in the housing and is equipped with first explosion-proof groove one end, when the core package in the housing is in the use, lead to the pressure increase because of the electrolyte boiling, thereby make the atmospheric pressure and the electrolyte in the housing extrude the comparatively weak first explosion-proof groove of casing inner wall, lead to the cracked condition of first explosion-proof groove, thereby make the pressure in the housing obtain the release, electrolyte and the gas that jets out from the housing enter into the buffer, be equipped with the venthole at the buffer top, and be equipped with the gasbag in the venthole, therefore when the gas and the electrolyte that enter into the buffer, the pressure increase in the buffer, gas discharges from the venthole, thereby make the gasbag in the venthole receive gaseous extrusion and the letting in of gas, the condition of inflation takes place, and utilize the gasbag can play the effect of buffering and collection to gas and electrolyte that dashes out in the casing, when having avoided when electrolytic capacitor to explode, its inside electrolyte causes the influence to other electronic components nearby, people are carrying out the maintenance and are examining time measuring, can audio-visually whether the balloon through observing electrolytic capacitor buffering cover top is in the inflation state, perhaps whether extruded the venthole, can know clearly whether the inside condition of damage takes place of electrolytic capacitor, make maintenance and testing process convenient and fast more.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been 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 with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides an explosion-proof type paster electrolytic capacitor, includes casing, core package, pin and plug, the core package passes through the plug and sets up inside the casing, pin one end is connected with the core package, and the other end passes the plug and extends the casing, the casing is kept away from plug one end and has been seted up first explosion-proof groove, a serial communication port, the casing is equipped with first explosion-proof groove one end and is equipped with the buffering cover, the buffering cover is located the housing face, just buffering cover and casing fixed connection, the venthole has been seted up at the buffering cover top, be equipped with the gasbag in the venthole, gasbag and the inside intercommunication of buffering cover, the gasbag is in not inflation state and contracts in the venthole.

2. The explosion-proof type patch electrolytic capacitor as claimed in claim 1 wherein the surface of the buffer cover is provided with a plurality of second explosion-proof slots, and the second explosion-proof slots are arranged around the periphery of the air outlet.

3. An explosion proof type patch electrolytic capacitor as claimed in claim 1 wherein the housing is externally sheathed with a thermoplastic sheath.

4. An explosion-proof type patch electrolytic capacitor as claimed in claim 3 wherein the case is further provided with a waist portion at an end thereof adjacent to the rubber plug, the number of the waist portions being at least one.

5. An explosion-proof type patch electrolytic capacitor as claimed in claim 4 wherein the waist-binding portion is provided with a plurality of reinforcing rods towards one side of the rubber plug, and the reinforcing rods are embedded in the rubber plug.

6. An explosion-proof type patch electrolytic capacitor as claimed in claim 1 wherein said first explosion-proof groove is formed in a structure of a meter-shaped, cross-shaped or Y-shaped.