CN218241601U

CN218241601U - Explosion-proof aluminum electrolytic capacitor

Info

Publication number: CN218241601U
Application number: CN202221658719.0U
Authority: CN
Inventors: 孙彧军; 李国华
Original assignee: Nantong Tongcheng Electronics Co ltd
Current assignee: Nantong Tongcheng Electronics Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-06
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses an explosion-proof aluminum electrolytic capacitor, the explosion-proof aluminum electrolytic capacitor includes battery core package, the fixed fire extinguishing mechanism that is provided with in the battery core package outside, positive pole pin and negative pole pin have been drawn forth above the battery core package, still include the inner shell, the inner shell cover is established the fire extinguishing mechanism outside, positive pole pin with the negative pole pin passes the inner shell setting, the cover is equipped with the rubber packing pad on positive pole pin and the negative pole pin, the inner shell bottom is provided with the heat conduction gasket, still includes the shell body, the shell body sets up the rubber packing pad, the inner shell and the outside of heat conduction gasket; has the advantages of simple structure, improvement of the safety of the aluminum electrolytic capacitor and the like.

Description

Explosion-proof aluminum electrolytic capacitor

Technical Field

The utility model relates to an explosion-proof technical field of aluminum electrolytic capacitor especially relates to an explosion-proof aluminum electrolytic capacitor.

Background

Electrolytic capacitor among the prior art comprises aluminum hull, core package, apron to and just draw forth foot, negative pin, and the bottom of aluminum hull is located to the apron, and the edge of tight apron is pressed from both sides to the bottom edge of aluminum hull after buckling, and the overcoat of aluminum cylinder is equipped with the shell cover, and the core package is located an aluminum cylinder, and apron department is located to just drawing forth foot, negative pin. The electrolytic capacitor can generate higher temperature when continuously working, and the capacitor can expand due to overhigh temperature, thereby not only influencing the service life of the capacitor, but also bringing about potential safety hazard. In the traditional aluminum electrolytic capacitor, a large amount of fixing agent is adopted for fixing between an aluminum shell and a core bag, the heat dissipation effect is poor due to the large amount of fixing agent, and the phenomenon of damage is easy to occur under the long-term working condition.

Therefore, an explosion-proof aluminum electrolytic capacitor is provided, which can solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, traditional aluminum electrolytic capacitor adopts a large amount of fixers to fix between aluminum hull and the core package, and a large amount of fixers will lead to the radiating effect poor, under long-term behavior, takes place to damage the phenomenon easily, so provide an explosion-proof aluminum electrolytic capacitor, explosion-proof aluminum electrolytic capacitor includes:

battery core package, the fixed mechanism of putting out a fire that is provided with in the battery core package outside, positive pole pin and negative pole pin have been drawn forth to the top of battery core package, still include the inner shell, the inner shell cover is established put out a fire the mechanism outside, positive pole pin with the negative pole pin passes the inner shell sets up, positive pole pin with the cover is equipped with the rubber packing pad on the negative pole pin, the inner shell bottom is provided with the heat conduction gasket, still includes the shell body, the shell body sets up the rubber packing pad interior casing with the outside of heat conduction gasket.

Furthermore, the fire extinguishing mechanism comprises a fire extinguishing dry powder storage layer and a protruding body, the fire extinguishing dry powder storage layer is arranged on the outer side of the core bag, an interval layer is arranged between the fire extinguishing dry powder storage layer and the core bag, and the protruding body is fixedly installed on the core bag.

Further, the bottom of the inner shell is provided with an air release hole.

Further, a plurality of heat conduction holes are formed in the heat conduction gasket.

Further, the rubber sealing gasket is used for supporting and fixing the anode pin and the cathode pin.

Further, the thickness of the bottom of the outer shell is smaller than the thickness of the side wall of the outer shell.

Furthermore, two lead-out holes are formed in the upper end of the outer shell, and the two lead-out holes are used for leading out the cathode pin and the anode pin respectively.

Further, a plastic packaging layer is arranged outside the outer shell.

Implement the utility model discloses, following beneficial effect has:

1. the utility model discloses the structure principle is simple, directly installs dry powder fire extinguishing layer additional at the core package skin to set up a plurality of holes on inner shell bottom and bottom heat conduction gasket, be used for deriving the material such as the flue gas that produces when the burning takes place, improved aluminum electrolytic capacitor's security performance.

Drawings

Fig. 1 is a structural view of the present invention.

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.

Examples

Referring to the attached drawings, the technical problem to be solved in this embodiment is that, in a conventional aluminum electrolytic capacitor, a large amount of fixing agent is used for fixing between an aluminum case and a core package, and the large amount of fixing agent causes poor heat dissipation effect and is easy to damage under long-term working conditions, so that an explosion-proof aluminum electrolytic capacitor is provided, which includes:

battery core package 2, the fixed mechanism of putting out a fire that is provided with in the 2 outside of battery core package, anode pin 8 and negative pole pin 9 have been drawn forth to the top of battery core package 2, still include

inner shell

5, 5 covers of inner shell are established in the mechanism outside of putting out a fire, anode pin 8 and negative pole pin 9 pass inner shell 5 and set up, the cover is equipped with rubber packing pad 7 on anode pin 8 and the

negative pole pin

9, 5 bottoms of inner shell are provided with heat conduction gasket 6, still include outer shell 1, outer shell 1 sets up in rubber packing pad 7, the 5 bodies of inner shell and the outside of heat conduction gasket 6.

The mechanism of putting out a fire is including putting out a fire dry powder storage layer 4 and the thorn body 3 that suddenly, and the dry powder storage layer 4 of putting out a fire sets up in the outside of core package 2, is provided with the wall between dry powder storage layer 4 of putting out a fire and the core package 2, and the thorn body 3 fixed mounting that suddenly appears on core package 2, and the core package can take place the inflation when the high temperature will burn, and the core package inflation makes the thorn body of suddenly pierce the dry powder storage layer of putting out a fire, and the dry powder of putting out a fire gets into the core package, prevents to take place the combustion explosion.

The bottom of the inner shell 5 is provided with an air vent which is used for guiding flue gas generated when the fire extinguishing dry powder and electrolyte in the core package react.

Be provided with a plurality of heat conduction holes on the heat conduction gasket 6, the heat conduction hole is used for increasing heat radiating area and improves the radiating efficiency, is used for deriving the flue gas that produces when putting out a fire dry powder and the interior electrolyte reaction of core package simultaneously.

The rubber packing 7 is used for supporting and fixing the anode pin 8 and the cathode pin 9.

The thickness of the bottom of the outer casing 1 is smaller than the thickness of the side wall of the outer casing 1.

Two leading-out holes are formed in the upper end of the outer shell 1 and are used for leading out a cathode pin 9 and an anode pin 8 respectively.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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. The utility model provides an explosion-proof aluminum electrolytic capacitor, its characterized in that, includes battery core package, the fixed mechanism of putting out a fire that is provided with in the battery core package outside, anode pin and negative pole pin have been drawn forth to the top of battery core package, still include the inner shell, the inner shell cover is established put out a fire the mechanism outside, anode pin with the negative pole pin passes the inner shell sets up, anode pin with the cover is equipped with rubber packing pad on the negative pole pin, the inner shell bottom is provided with heat-conducting gasket, still includes the shell body, the shell body sets up rubber packing pad interior casing with heat-conducting gasket's the outside.

2. The explosion-proof aluminum electrolytic capacitor of claim 1 wherein the fire extinguishing mechanism comprises a fire extinguishing dry powder storage layer and a protruding body, the fire extinguishing dry powder storage layer is arranged outside the core bag, a spacing layer is arranged between the fire extinguishing dry powder storage layer and the core bag, and the protruding body is fixedly mounted on the core bag.

3. The explosion-proof aluminum electrolytic capacitor of claim 2 wherein the bottom of the inner shell is provided with a vent hole.

4. The explosion-proof aluminum electrolytic capacitor of claim 3 wherein the thermal pad has a plurality of thermal vias disposed therein.

5. The explosion-proof aluminum electrolytic capacitor as recited in claim 4, wherein the rubber gasket is used for supporting and fixing the anode pin and the cathode pin.

6. The explosion-proof aluminum electrolytic capacitor of claim 5 wherein the thickness of the bottom of the outer shell is less than the thickness of the side walls of the outer shell.

7. The explosion-proof aluminum electrolytic capacitor of claim 6, wherein two lead-out holes are formed at the upper end of the outer shell, and the two lead-out holes are respectively used for leading out a cathode pin and an anode pin.

8. The explosion-proof aluminum electrolytic capacitor of claim 7 wherein the outer housing is externally provided with a plastic sealing layer.