CN211980441U

CN211980441U - Fire-retardant resistant thin film capacitor who punctures of preventing fires

Info

Publication number: CN211980441U
Application number: CN202020740549.5U
Authority: CN
Inventors: 史敦清; 刘盼; 姚毅博
Original assignee: Youpu Electronics Suzhou Co ltd
Current assignee: Youpu Electronics Suzhou Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-11-20
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a fire-retardant resistant film capacitor who punctures of preventing fires, including casing, pin, electrode slice and insulating medium, the inside symmetry of casing is installed two sets of electrode slices that are parallel distribution, and the equal fixedly connected with in bottom of two sets of electrode slices runs through the pin of casing, the inside of casing is located and inlays between two sets of electrode slices and is equipped with insulating medium, and insulating medium's inside sets up the perpendicular hole that the multiunit is rectangular array and distributes. The utility model discloses in, at first, inside is equipped with fire prevention fire-retardant structure, can prevent the further burning of burning source when film capacitor internal combustion, has reduced the production of film capacitor internal combustion explosion phenomenon to film capacitor's fire behavior and security performance have been promoted, secondly, inside is equipped with the repair structure, can be when insulating medium is punctured, carries out insulating repair processing with insulating medium, has reduced the production of electrode slice contact short circuit phenomenon, thereby has prolonged film capacitor's life.

Description

Fire-retardant resistant thin film capacitor who punctures of preventing fires

Technical Field

The utility model relates to a film capacitor technical field especially relates to a fire-retardant resistant film capacitor who punctures of preventing fires.

Background

The film capacitor is also called as a plastic film capacitor. The capacitor takes a plastic film as a dielectric medium, and the capacitor has various types depending on the dielectric medium, such as: electrolyte capacitors, paper capacitors, thin film capacitors, ceramic capacitors, mica capacitors, air capacitors, and the like. But are most frequently used in audio equipment, as are electrolytic capacitors and Film (Film) capacitors. Electrolytic capacitors are often used in places where a large capacitance is required, such as filter capacitors in the main power supply section, which also serve to store electric energy in addition to filtering. The thin film capacitor is widely used in the place of the cross connection of analog signals, the bypass of power supply noise (anti-cross connection), and the like. However, the existing film capacitor still has the defects that: firstly, do not set up fire prevention fire-retardant structure on most film capacitor, when film capacitor high temperature, the ventilation is bad, the operating voltage is too high, voltage harmonic component is too big or the operation probably arouses the internal combustion during overvoltage, thereby lead to film capacitor to produce the explosion, fire prevention effect and security are relatively poor, secondly, when film capacitor operating voltage is too high, can lead to the insulating medium between the electrode slice to be punctureed, after insulating medium punctures, easily lead to the phenomenon that the electrode slice contact produced the short circuit, thereby film capacitor's life has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the film capacitor is provided for solving the problems that the traditional film capacitor is easy to generate internal combustion and explosion phenomena during high-voltage work and has poor fireproof effect and safety.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a fire-retardant resistant film capacitor who punctures of fire prevention, includes casing, pin, electrode slice and insulating medium, the inside symmetry installation of casing is two sets of electrode slices that are parallel distribution, and the equal fixedly connected with in bottom of two sets of electrode slices runs through the pin of casing, the inside of casing is located and inlays between two sets of electrode slices and be equipped with insulating medium, and insulating medium's inside sets up the perpendicular hole that the multiunit is rectangular array and distributes, the inside of casing is located insulating medium's top and has seted up the storage and glue the chamber, and stores up and glue the intracavity intussuseption and be filled with the healant, the inside both sides that are located two sets of electrode slices of casing are inlayed and are equipped.

As a further description of the above technical solution:

the left end and the right end of the shell are located at the top end and the bottom end of the fireproof rubber sleeve and are fixedly connected with limiting blocks.

As a further description of the above technical solution:

and a plurality of groups of ventilation holes distributed in a rectangular array are formed in the fireproof rubber sleeve.

As a further description of the above technical solution:

and the inside of the insulating medium is positioned among the plurality of groups of vertical holes and communicated with a communicating groove.

As a further description of the above technical solution:

the flame retardant gas is preferably carbon dioxide, but is not limited to carbon dioxide.

As a further description of the above technical solution:

the repairing agent is preferably an insulating glue, but is not limited to the insulating glue.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, inside is equipped with fire prevention flame retardant structure, be equipped with film gasbag and flame retardant gas in the casing, be equipped with the fire prevention gum cover in the casing outside simultaneously, when the inside burning of casing, the film gasbag just can break when receiving high temperature effect, the inside flame retardant gas of film gasbag just can discharge, fill inside the casing with flame retardant gas, thereby prevent the inside continuation burning of casing, the fire prevention gum cover can prevent outside burning of the fire source from wearing the casing simultaneously, this kind of structure can prevent the further burning of fire source when the internal combustion of film capacitor, the production of film capacitor internal combustion explosion phenomenon has been reduced, thereby film capacitor's fire behavior and security performance have been promoted.

2. The utility model discloses in, inside is equipped with the repair structure, be equipped with perpendicular hole and intercommunication groove on insulating medium, the top that is located insulating medium in the inside of casing simultaneously is equipped with the storage and glues chamber and healant, when insulating medium is punctured, the healant alright enter into insulating medium's breakdown department through perpendicular hole or intercommunication groove, and will puncture the department and repair the processing, this kind of structure can be when insulating medium is punctured, carry out insulating repair processing with insulating medium, electrode slice contact short circuit phenomenon's production has been reduced, thereby thin film capacitor's life has been prolonged.

Drawings

Fig. 1 is a front view of a fire-retardant breakdown-resistant film capacitor of the present invention;

fig. 2 is a schematic sectional view of the housing of the present invention;

fig. 3 is a schematic cross-sectional view of the position a-a of the present invention.

Illustration of the drawings:

1. a housing; 101. a glue storage cavity; 102. a limiting block; 2. a pin; 3. a fireproof rubber sleeve; 301. a ventilation hole; 4. an electrode sheet; 5. an insulating medium; 501. vertical holes; 502. a communicating groove; 6. a film air bag; 7. a flame-retardant gas; 8. a healing agent.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a fire-retardant resistant film capacitor who punctures of fire prevention, which comprises a housin 1, pin 2, electrode slice 4 and insulating medium 5, two sets of electrode slices 4 that are parallel distribution of inside symmetry installation of casing 1, and the equal fixedly connected with in bottom of two sets of electrode slices 4 runs through pin 2 of casing 1, the inside of casing 1 is located to inlay between two sets of electrode slices 4 and is equipped with insulating medium 5, and insulating medium 5's inside sets up the perpendicular hole 501 that the multiunit is rectangular array and distributes, the inside of casing 1 is located the top of insulating medium 5 and has seted up the storage and has glued chamber 101, and the storage is glued the intussuseption of chamber 101 and is filled with mending agent 8, the inside both sides that are located two sets of electrode slices 4 of casing 1 inlays and is equipped.

Specifically, as shown in fig. 1-3, the left end and the right end of casing 1 are located the top and the equal fixedly connected with stopper 102 in bottom of fire prevention gum cover 3, the multiunit venthole 301 that is the rectangle array and distributes is seted up to the inside of fire prevention gum cover 3, the inside of insulating medium 5 is located the intercommunication between the multiunit perpendicular hole 501 and has intercommunication groove 502, the setting of stopper 102, be convenient for the spacing processing after 3 covers of fire prevention gum cover are established, the setting of venthole 301, be convenient for the processing of taking a breath between casing 1 and the fire prevention gum cover 3, the setting of intercommunication groove 502, be convenient for mending agent 8 at the inside circulation of multiunit perpendicular hole 501.

Specifically, as shown in fig. 2 and 3, carbon dioxide is preferably used for the flame-retardant gas 7, but not limited to carbon dioxide, and insulating glue is preferably used for the repairing agent 8, but not limited to insulating glue, and carbon dioxide is selected for the flame-retardant gas 7 because carbon dioxide has a good flame-retardant effect and is low in use cost, and the insulating glue is selected for the repairing agent 8, so that on one hand, the fluidity of the insulating glue is improved when being heated, the repairing agent 8 can conveniently circulate in the vertical hole 501 and the communication groove 502, and the repairing treatment is performed on the punctured part, and on the other hand, the insulating glue has good insulating performance.

The working principle is as follows: when the film capacitor is used, when the two pins 2 at the bottom of the shell 1 are welded on a circuit board, the installation treatment of the film capacitor is completed, when the film capacitor works at high voltage, the insulating medium 5 is punctured by the two groups of electrode plates 4, the repairing agent 8 in the glue storage cavity 101 can enter the insulating medium 5 through the vertical holes 501 under the action of gravity and uniformly flow into each group of vertical holes 501 through the communicating groove 502, when the repairing agent 8 flows to the punctured part of the insulating medium 5, the punctured part can be repaired, so that the occurrence of the phenomenon of the punctured and damaged insulating medium 5 is reduced, when the shell 1 is combusted, the temperature in the shell 1 is increased, the film airbag 6 can be cracked under the action of high temperature, the flame-retardant gas 7 in the film airbag 6 can be discharged, the flame-retardant gas 7 can be filled in the shell 1, so that the interior of the shell 1 is prevented from being continuously combusted, when the outside of the shell 1 is burnt, the fireproof rubber sleeve 3 can directly contact with a fire source, so that the outside of the shell 1 is prevented from directly contacting with the fire source.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The film capacitor comprises a shell (1), pins (2), electrode plates (4) and insulating media (5), and is characterized in that two groups of electrode plates (4) which are distributed in parallel are symmetrically arranged in the shell (1), the bottoms of the two groups of electrode plates (4) are fixedly connected with the pins (2) penetrating through the shell (1), the insulating media (5) are embedded between the two groups of electrode plates (4) in the shell (1), a plurality of groups of vertical holes (501) distributed in a rectangular array are formed in the insulating media (5), a glue storage cavity (101) is formed in the shell (1) above the insulating media (5), a repairing agent (8) is filled in the glue storage cavity (101), and film airbags (6) are embedded in the shell (1) at two sides of the two groups of electrode plates (4), and the film air bag (6) is filled with flame-retardant gas (7).

2. The film capacitor with fire resistance, flame retardance and breakdown resistance as claimed in claim 1, wherein the left end and the right end of the shell (1) are fixedly connected with limit blocks (102) at the top end and the bottom end of the fireproof rubber sleeve (3).

3. The film capacitor with fire resistance, flame retardance and breakdown resistance as claimed in claim 2, wherein a plurality of groups of ventilation holes (301) distributed in a rectangular array are formed in the fireproof rubber sleeve (3).

4. A fire-proof, fire-retardant and breakdown-resistant film capacitor as claimed in claim 1, wherein the inside of the insulating medium (5) is connected with a connecting groove (502) between the groups of vertical holes (501).

5. A fire retardant breakdown resistant film capacitor as claimed in claim 1, characterized in that said fire retardant gas (7) is carbon dioxide.

6. A fire-retardant breakdown-resistant film capacitor in accordance with claim 1, wherein said repairing agent (8) is selected from insulating glue.