CN110942912B

CN110942912B - Explosion-proof type condenser

Info

Publication number: CN110942912B
Application number: CN201911335382.2A
Authority: CN
Inventors: 汪源; 罗大虎; 乔东旗; 李久青
Original assignee: State Grid Henan Electric Power Co Tongbai County Power Supply Co
Current assignee: State Grid Henan Electric Power Co Tongbai County Power Supply Co
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2021-06-29
Anticipated expiration: 2039-12-23
Also published as: CN110942912A

Abstract

The invention relates to the technical field of electric power correlation, in particular to an explosion-proof capacitor, which comprises an outer shell and an inner shell; the inner shell sets up in the inboard of shell and through the piece that connects with the inner wall connection of shell, the inboard of shell and the outside of inner shell form the cooling cavity, the side symmetry of inner shell is provided with and runs through the chamber that extends of shell, and extend the chamber orientation one side of inner shell with the inboard intercommunication of inner shell, the inboard that extends the chamber is provided with gliding elasticity movable assembly with it, works as the inboard high temperature of inner shell, elasticity movable assembly orientation under the effect of pressure the shell removes in order to change the inboard volume of inner shell. Through the extension chamber cooperation elasticity movable assembly that sets up realize at the inboard high temperature of inner shell, when taking place the volume change, elasticity movable assembly moves towards under the effect of pressure the shell removes in order to change the inboard volume of inner shell to play explosion-proof effect, the practicality is strong.

Description

Explosion-proof type condenser

Technical Field

The invention relates to the technical field of electric power correlation, in particular to an explosion-proof capacitor.

Background

Two conductors close to each other with a layer of non-conductive insulating medium in between constitute the capacitor. When a voltage is applied across the two plates of the capacitor, the capacitor stores charge. The capacitance of the capacitor is numerically equal to the ratio of the amount of charge on one conductive plate to the voltage between the two plates. The basic unit of capacitance of a capacitor is farad (F). The capacitor element is generally denoted by letter C in the circuit diagram.

The phenomenon that the shell is broken and damaged often appears in current condenser, mainly because the condenser produces heat in the working process for its inside insulating medium is heated the inflation and says that the shell struts.

Disclosure of Invention

The present invention is directed to an explosion-proof capacitor, which solves the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

an explosion-proof type capacitor, comprising an outer shell and an inner shell; the inner shell sets up in the inboard of shell and through the bearing piece with the inner wall connection of shell, the inboard of shell and the outside of inner shell form the cooling cavity, the side symmetry of inner shell is provided with and runs through the chamber that extends of shell, and extend the chamber orientation one side of inner shell with the inboard intercommunication of inner shell, the inboard that extends the chamber is provided with gliding elasticity movable assembly with it, works as the inboard high temperature of inner shell, when taking place volume change, elasticity movable assembly orientation under the effect of pressure the shell removes in order to change the inboard volume of inner shell.

As a further scheme of the invention: the elastic movable assembly comprises a movable plate which slides in the extension cavity through a sliding assembly, and one surface, far away from the inner shell, of the movable plate is connected with the extension cavity through an elastic piece.

As a still further scheme of the invention: the elastic piece adopts a spring or a shrapnel.

As a still further scheme of the invention: the side of shell is provided with the radiating fin that a plurality of equidistance set up.

As a still further scheme of the invention: the radiating fins are arranged in a hollow structure and communicated with the inner side of the shell.

As a still further scheme of the invention: the inner sides of the adjacent two radiating fins are communicated through a communicating pipe, and the inner sides of the radiating fins close to the extending cavity are communicated with the inner sides of the extending cavity through a guide pipe.

As a still further scheme of the invention: the motor is characterized in that electrode plates are symmetrically arranged on the inner side of the inner shell, the motor plates are connected with wiring terminals penetrating through the inner shell and the outer shell, and sealing sleeves are sleeved on the outer sides of the wiring terminals on the outer shell.

Compared with the prior art, the invention has the beneficial effects that: the anti-explosion inner shell is novel in design, the temperature of the inner side of the inner shell is overhigh through the matching of the arranged extension cavity and the elastic movable assembly, and when the volume of the inner shell is changed, the elastic movable assembly moves towards the outer shell under the action of pressure to change the volume of the inner side of the inner shell, so that the anti-explosion effect is achieved, and the practicability is high.

Drawings

Fig. 1 is a schematic structural view of an explosion-proof capacitor.

Fig. 2 is a sectional view of an explosion-proof capacitor.

Fig. 3 is an enlarged view of a structure at a in fig. 2.

In the figure: 1-outer shell, 2-wiring terminal, 3-sealing sleeve, 4-fan heat fin, 5-extension cavity, 6-conduit, 7-spring, 8-movable plate, 9-sliding groove, 10-sliding block, 11-inner shell, 12-bearing block, 13-electrode plate and 14-communicating pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, an explosion-proof capacitor includes an outer shell 1 and an inner shell 11; inner shell 11 set up in the inboard of shell 1 and through the piece 12 with the inner wall connection of shell 1, the inboard of shell 1 and the outside of inner shell 11 form the cooling cavity, the side symmetry of inner shell 11 is provided with and runs through the chamber 5 that extends of shell 1, and extend the chamber 5 orientation one side of inner shell 11 with the inboard intercommunication of inner shell 11, the inboard that extends chamber 5 is provided with gliding elasticity movable assembly with it, works as 11 inboard high temperatures of inner shell, when taking place volume change, elasticity movable assembly orientation under the effect of pressure shell 1 removes in order to change the inboard volume of inner shell 11.

In the embodiment of the invention, the fact that the temperature of the inner side of the inner shell 11 is too high is realized through the matching of the arranged extension cavity 5 and the elastic movable component, and when the volume changes, the elastic movable component moves towards the outer shell 1 under the action of pressure to change the volume of the inner side of the inner shell 11, so that the explosion-proof effect is achieved, and the practicability is high.

In the embodiment of the present invention, the extension cavity 5 is arranged in a square structure to facilitate the cooperation with the elastic movable component, and it can be understood that the elastic movable component slides in the extension cavity 5 in a sealing manner.

As an embodiment of the present invention, the elastic movable assembly includes a movable plate 8 sliding with the extension cavity 5 through a sliding assembly, and a surface of the movable plate 8 away from the inner shell 11 is connected with the extension cavity 5 through an elastic member.

In the embodiment of the present invention, the movable plate 8 moves when the pressure in the inner shell 11 increases, and simultaneously presses the elastic member, so as to realize volume increase and prevent burst, when the temperature decreases, the pressure in the inner shell 11 decreases, and the movable plate 8 is reset under the action of the elastic member.

As an embodiment of the present invention, the sliding assembly includes a sliding block 10 fixed to the movable plate 8 and a sliding groove 9 disposed on an inner wall of the extension cavity 5, and the sliding block 10 is in sliding fit with the sliding groove 9.

As an embodiment of the present invention, the elastic member is a spring 7 or a leaf spring.

As an embodiment of the present invention, a plurality of heat dissipating fins 4 are disposed at equal intervals at the side end of the housing 1.

In the embodiment of the invention, the heat in the shell 1 is effectively dissipated through the arranged heat dissipation fins 4, so as to obtain the effect of cooling.

As an embodiment of the present invention, the heat dissipation fins 4 are disposed in a hollow structure and communicate with the inside of the housing 1.

In the embodiment of the present invention, the inner sides of the heat dissipation fins 4 are communicated with the cooling cavity, and it can be understood that, in order to improve the cooling effect, the cooling cavity may be filled with cooling oil, and the upper layer of the inner side of the cooling cavity is in a non-filled state, so that the cooling oil will be filled into the heat dissipation fins 4 when standing still, thereby improving the heat dissipation effect.

As an embodiment of the present invention, the inner sides of two adjacent heat dissipation fins 4 are communicated through a communication pipe 14, and the inner side of the heat dissipation fin 4 near the extension chamber 5 is communicated with the inner side of the extension chamber 5 through a conduit 6.

In the embodiment of the present invention, the amount of cooling oil in the extension cavity 5 can be changed when the movable plate 8 moves, and it can be understood that the cooling oil partially enters the cooling cavity through the conduit 6 and the heat dissipation fins 4, so that an effect of pushing the cooling oil to flow is provided to increase the heat dissipation effect.

As an embodiment of the present invention, electrode plates 13 are symmetrically disposed on the inner side of the inner shell 1, the motor plates 13 are connected to the terminal 2 penetrating through the inner shell 11 and the outer shell 1, and a sealing sleeve 3 is sleeved on the outer side of the terminal 2 on the outer shell 1.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An explosion-proof capacitor, characterized in that it comprises an outer shell (1) and an inner shell (11); the utility model discloses a heat exchanger, including shell (11), inner shell (11) set up in the inboard of shell (1) and through holding piece (12) with the interior wall connection of shell (1), the inboard of shell (1) and the outside of inner shell (11) form the cooling cavity, the side symmetry of inner shell (11) is provided with runs through extension chamber (5) of shell (1), and extends chamber (5) orientation one side of inner shell (11) with the inboard intercommunication of inner shell (11), the inboard of extending chamber (5) is provided with gliding elastic movable component with it, works as inner shell (11) inboard high temperature, when the volume change takes place, elastic movable component moves towards under the effect of pressure shell (1) removes in order to change the inboard volume of inner shell (11), the side of shell (1) is provided with radiating fin (4) that a plurality of equidistance set up, radiating fin (4) are hollow structure and set up, and the inner sides of the adjacent two radiating fins (4) are communicated through a communicating pipe (14), and the inner sides of the radiating fins (4) close to the extension cavity (5) are communicated with the inner side of the extension cavity (5) through a conduit (6).

2. An explosion-proof capacitor as claimed in claim 1, characterized in that said elastically movable element comprises a movable plate (8) sliding with said extension cavity (5) by means of a sliding element, the face of said movable plate (8) remote from said inner shell (11) being connected with said extension cavity (5) by means of an elastic element.

3. An explosion-proof capacitor as claimed in claim 2, characterized in that the elastic element is a spring (7) or a leaf spring.

4. An explosion-proof capacitor as claimed in any one of claims 1 to 3, characterized in that the inner side of the inner casing (1) is symmetrically provided with electrode plates (13), the motor plates (13) are connected with the terminals (2) penetrating through the inner casing (11) and the outer casing (1), and the outer side of the terminals (2) on the outer casing (1) is sleeved with a sealing sleeve (3).