CN212303409U

CN212303409U - An inner series explosion-proof film capacitor

Info

Publication number: CN212303409U
Application number: CN202020903856.0U
Authority: CN
Inventors: 汤小荣
Original assignee: Dongguan Jierong Film Technology Co ltd
Current assignee: Dongguan Jierong Film Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-01-05
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses an interior string formula explosion-proof film capacitor, including aluminium system shell, the insulating division board of internal face fixedly connected with of aluminium system shell bottom, fixedly connected with negative pole foil and positive pole foil respectively are distinguished to the both sides on insulating division board top, one side fixedly connected with conductor pipe of negative pole foil, the opposite side fixedly connected with conductor pipe of positive pole foil, fixedly connected with metallized film electric capacity between one side of two conductor pipes and the opposite side, insulating division board, the positive pole foil, the negative pole foil, the conductor pipe, metallized film electric capacity forms electric capacity device jointly, fold formula fixed connection and form string formula structure electric capacity device between a plurality of group electric capacity devices. The utility model discloses a setting up of multiunit electric capacity device forms great potential difference ability, and stability obtains promoting, can store more electric quantities to be provided with explosion-proof shell at the surface of aluminium system shell, have explosion-proof apron at insulating apron bottom fixed mounting, form a sealed internal environment, increase the safety guarantee.

Description

Internal-string type explosion-proof film capacitor

Technical Field

The utility model relates to a condenser field of making, in particular to interior string-type explosion-proof film capacitor.

Background

The common film capacitor has no polarity, high insulation impedance, excellent frequency characteristic and small dielectric loss, and especially in the signal connection part, the capacitor with good frequency characteristic and extremely low dielectric loss must be used to ensure that the signal is not distorted too much when being transmitted, so the common film capacitor is widely applied to a plurality of industries such as electronics, household appliances, communication, electric power, electrified railways, hybrid electric vehicles, wind power generation, solar power generation and the like.

The capacitor with the single-layer metallized film and the single-layer common zinc-aluminum film adopted in the current market cannot well limit the self-healing range when the internal weakness of the capacitor is broken down, has lower reliability of safety performance, is inferior to a foil capacitor in capacity stability, has poorer high-current resistance, is poorer in stability of a conventional double-layer metallized safety film capacitor, is easy to cause safety accidents such as explosion and the like, and has higher manufacturing cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an interior string formula explosion-proof film capacitor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an interior explosion-proof thin-film capacitor of cluster formula, includes the aluminium system shell, aluminium system shell bottom is provided with capacitance device, capacitance device comprises insulating division board, positive pole foil, negative pole foil, conductor pipe, metallized film capacitance jointly, a plurality of groups fold formula fixed connection between the capacitance device and form string formula structure capacitance device, the insulating division board of internal face fixedly connected with of aluminium system shell bottom, the both sides on insulating division board top fixedly connected with negative pole foil and positive pole foil respectively, one side fixedly connected with conductor pipe of negative pole foil and positive pole foil, two fixedly connected with metallized film capacitance between the conductor pipe.

Preferably, the top of the aluminum shell is in threaded connection with an explosion-proof cover plate, and one side of the top end of the explosion-proof cover plate is hinged with an insulating cover plate.

Preferably, the outer wall surface of the aluminum shell is fixedly sleeved with an explosion-proof shell.

Preferably, both sides of the top ends of the insulating cover plate and the explosion-proof cover plate are fixedly provided with hole grooves, a cathode port and an anode port are respectively led out through the hole grooves, the inner wall surfaces of the top ends of the cathode port and the anode port are fixedly connected with connecting leads, the bottom ends of the connecting leads are fixedly connected with fuses, the bottom ends of the fuses are fixedly connected with connecting leads, and the bottom ends of the connecting leads are respectively fixedly connected with cathode foil pieces and anode foil pieces.

Preferably, the top end of the lead-out cathode port is fixedly connected with a cathode iron sheet, and the top end of the lead-out anode port is fixedly connected with an anode iron sheet.

Preferably, the aluminum shell is filled with potting insulating material.

Preferably, the cathode foil and the anode foil are electrically connected through wires respectively.

The utility model discloses a technological effect and advantage:

(1) the utility model is connected with fuses at the leading-out cathode port, the leading-out anode port and the connecting lead, and can fuse to protect the circuit when the circuit load is too large or the temperature is too high, thereby preventing the circuit elements from being damaged by the overlarge voltage;

(2) the utility model is provided with the explosion-proof shell on the outer surface of the aluminum shell, and the explosion-proof cover plate is fixedly arranged at the bottom end of the insulating cover plate to form a sealed inner environment, thereby increasing the safety guarantee of the environment outside the circuit;

(3) the utility model discloses electric capacity department adopts epoxy encapsulation multilayer metallization safety film, and the resistance can be more excellent, and the humidity resistance is good, and the promotion safety film wearability that can be great, needn't change for a long time.

Drawings

Fig. 1 is a schematic view of the external structure of the present invention.

Fig. 2 is a schematic front structural view of the present invention.

Fig. 3 is a schematic diagram of the structure of the capacitor device of the present invention.

In the figure: 1. an insulating separator plate; 2. leading out a cathode port; 3. an insulating cover plate; 4. an aluminum housing; 5. a cathode foil; 6. an anode foil; 7. leading out an anode port; 8. an explosion-proof cover plate; 9. connecting a lead; 10. A fuse; 11. a metallized film capacitor; 12. an anode iron sheet; 13. a cathode iron sheet; 14. an explosion-proof housing; 15. a conductor tube.

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 interior burst mode explosion-proof film capacitor as shown in fig. 1-3, including

aluminium system shell

4, 4 bottoms of aluminium system shell are provided with capacitance device, capacitance device comprises insulating division board 1, positive pole foil 6, negative pole foil 5, conductor pipe 15, metallized film capacitor 11 jointly, a plurality of groups fold formula fixed connection between the capacitance device and form string formula structure capacitance device, the insulating division board 1 of the internal face fixedly connected with in 4 bottoms of aluminium system shell, the both sides on insulating division board 1 top fixedly connected with negative pole foil 5 and positive pole foil 6 respectively, the equal fixedly connected with conductor pipe 15 in one side of negative pole foil 5 and positive pole foil 6, fixedly connected with metallized film capacitor 11 between two conductor pipes 15.

The top of the aluminum shell 4 is in threaded connection with an explosion-proof cover plate 8, and one side of the top end of the explosion-proof cover plate 8 is hinged with an insulating cover plate 3.

The outer wall surface of aluminum shell 4 is fixedly sleeved with explosion-proof shell 14, and the inside of aluminum shell 4 is filled with potting insulating material.

The both sides on insulating apron 3 and 8 tops of explosion-proof apron have all fixedly seted up the hole groove, and through hole groove fixed installation draw forth negative pole port 2 respectively and draw forth positive pole port 7, draw forth negative pole port 2 and draw forth the internal face fixedly connected with connecting lead 9 on positive pole port 7 top, connecting lead 9's bottom fixedly connected with fuse 10, fuse 10's bottom fixedly connected with connecting lead 9, connecting lead 9's bottom fixedly connected with negative pole foil 5 and positive pole foil 6 respectively, draw forth the top fixedly connected with negative pole iron sheet 13 of negative pole port 2, draw forth the top fixedly connected with positive pole iron sheet 12 of positive pole port 7.

The utility model discloses the theory of operation: when the inner series type explosion-proof film capacitor is charged, the positive electrode and the negative electrode of an external power supply can be respectively connected with an anode iron sheet 12 and a cathode iron sheet 13, corresponding electric ions in the external power supply respectively reach a cathode foil 5 and an anode foil 6 through a connecting lead 9 and an electric wire, a multilayer metallized film capacitor 11 packaged by epoxy resin is connected between the cathode foil 5 and the anode foil 6, and potential difference is formed under the blocking action of a conductor tube 15 and a medium of the metallized film capacitor 11, so that the aim of storing electric energy is achieved, in the process of ion transmission, a fuse 10 can play a role in protecting a circuit system, can automatically fuse to form a short circuit when the circuit is overloaded to protect the circuit, and when the inner series type explosion-proof film capacitor is required to supply electric energy, the external electric appliance can be respectively connected to the anode iron sheet 12 and the cathode iron sheet 13 in a reverse mode to provide breakdown voltage thereof, the metallized film capacitor 11 is turned into a path by voltage breakdown, and the electric energy stored in the cathode foil 5 and the anode foil 6 is transmitted to an electric appliance through the electric wire and the connecting lead 9 to supply power to the electric appliance. In the process, the explosion-proof cover plate 8 fixedly connected with the top end of the aluminum shell 4 and the explosion-proof shell 16 fixedly sleeved on the inner wall surface of the aluminum shell 4 play a role in protecting the inner-string type explosion-proof film capacitor, so that a sealed internal environment is formed, and the explosion accident can be well stopped.

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 inner string type explosion-proof film capacitor, comprising an aluminum casing (4), characterized in that: the aluminum casing (4) is provided with a capacitor device at the bottom end of the aluminum casing (4), and the capacitor The device is composed of an insulating isolation plate (1), an anode foil (6), a cathode foil (5), a conductor tube (15), and a metallized film capacitor (11). Several groups of the capacitor devices are stacked and fixed. Connected to form a string structure capacitor device, the inner wall surface of the bottom end is fixedly connected with a plurality of insulating isolation plates (1), and the two sides of the top of the insulating isolation plate (1) are respectively fixedly connected with a cathode foil (5) and an anode. A foil (6), a conductor tube (15) is fixedly connected to one side of the cathode foil (5) and the anode foil (6), and a metallized film capacitor is fixedly connected between the conductor tubes (15). (11).

2. An inner-string type explosion-proof film capacitor according to claim 1, characterized in that: an explosion-proof cover plate (8) is threadedly connected to the top of the aluminum casing (4), and the explosion-proof cover plate (8) One side of the top is hinged with an insulating cover plate (3).

3. An inner-string type explosion-proof film capacitor according to claim 1, wherein the outer wall surface of the aluminum casing (4) is fixedly sleeved with an explosion-proof casing (14).

4. An inner-string type explosion-proof film capacitor according to claim 2, characterized in that: both sides of the top of the insulating cover plate (3) and the explosion-proof cover plate (8) are fixedly provided with holes and grooves, and through the The hole slot is fixedly installed with a cathode extraction port (2) and an anode extraction port (7) respectively, and a connecting lead (9) is fixedly connected to the inner wall surface of the top of the cathode extraction port (2) and the anode extraction port (7). , the bottom end of the connecting lead (9) is fixedly connected to the fuse (10), the bottom end of the fuse (10) is fixedly connected with a connecting lead (9), and the bottom ends of the connecting lead (9) are respectively fixedly connected with Cathode foil (5) and anode foil (6).

5. An inner-string type explosion-proof film capacitor according to claim 4, characterized in that: the top of the lead-out cathode port (2) is fixedly connected with a cathode iron sheet (13), and the lead-out anode port (7) An anode iron sheet (12) is fixedly connected to the top of the anode.

6 . The inner-string explosion-proof film capacitor according to claim 1 , wherein the aluminum casing ( 4 ) is filled with potting insulating material. 7 .