CN214898310U

CN214898310U - Arc control device of SVG high-voltage circuit breaker

Info

Publication number: CN214898310U
Application number: CN202121590231.4U
Authority: CN
Inventors: 刘斌斌; 赵瑞; 李宏健; 黄佳; 戴晓亮; 马文瑜; 司通兵
Original assignee: Shandong Taikai Power Electronic Co ltd; TBEA Xinjiang Sunoasis Co Ltd
Current assignee: Shandong Taikai Power Electronic Co ltd; TBEA Xinjiang Sunoasis Co Ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2021-11-26
Anticipated expiration: 2031-07-14

Abstract

The utility model discloses an arc control device of SVG high-voltage circuit breaker, which comprises a device body, the inboard middle part of device body is equipped with the arc-extinguishing cover, the surface of arc-extinguishing cover evenly twines the condenser pipe, the upper end fixed mounting of arc-extinguishing cover has the water tank, the both ends of condenser pipe are respectively with the both ends fixed connection of water tank, the inside of water tank is equipped with the drive assembly that drives the water inside the water tank and pass through the circulation motion of condenser pipe, the utility model discloses, through having set up water tank, condenser pipe, water pump, water pipe, pressure plate, reset spring, slide bar, dead lever, rope, switch knife and movable rod etc. structural component, after electric arc is produced, the gas in the arc-extinguishing cover expands rapidly, and the pressure plate compresses the reset spring, promotes the slide bar simultaneously and removes to the blade, makes it closed to make the blade be close to switch knife through the movable rod, then starts the water pump, so that the water in the water tank flows circularly through the condensing pipe to cool the arc extinguishing chamber quickly.

Description

Arc control device of SVG high-voltage circuit breaker

Technical Field

The utility model relates to an arc control device technical field especially relates to an arc control device of SVG high voltage circuit breaker.

Background

An arc is a form of gas discharge. Gas discharge is classified into self-sustaining discharge and non-self-sustaining discharge, and an arc belongs to arc discharge in the gas self-sustaining discharge. Tests prove that when a circuit with voltage over 10V and current over 0.5A is opened or closed in the atmosphere, a mass of gas with extremely high temperature, extremely strong brightness and conductivity, called an electric arc, is generated in a contact gap (or arc gap). Because of the high temperature and strong light of the electric arc, it can be widely applied to the aspects of welding, smelting, chemical synthesis, strong light source, space technology and the like. For the electrical appliances with contacts, the high temperature will burn the contacts and the insulation when the contacts break the circuit, and even cause the short circuit between the phases and the explosion of the electrical appliances under serious conditions, thereby causing fire and endangering the safety of personnel and equipment.

The arc control device of the SVG high-voltage circuit breaker used in the market at present can not timely and effectively cool the arc extinguishing cover, and has certain potential safety hazard, so that the arc extinguishing device is necessary to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the arc control device of a SVG high voltage circuit breaker who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an arc extinguishing device of an SVG high-voltage circuit breaker comprises a device body, wherein an arc extinguishing cover is arranged in the middle of the inner side of the device body, a condensation pipe is uniformly wound on the outer surface of the arc extinguishing cover, a water tank is fixedly mounted at the upper end of the arc extinguishing cover, two ends of the condensation pipe are respectively fixedly connected with two ends of the water tank, and a driving assembly for driving water in the water tank to circularly move through the condensation pipe is arranged in the water tank;

the device comprises a device body and is characterized in that a switch assembly for controlling the start and stop of a driving assembly is fixedly mounted on one side of the inner side wall of the device body, and a movable assembly for controlling the switch of the switch assembly is fixedly mounted on one side, close to the switch assembly, of the inner side wall of an arc extinguishing chamber.

As a further description of the above technical solution:

the drive assembly comprises a water pump, the water pump is fixedly connected with the inner bottom wall of the water tank, the output end of the water pump is fixedly connected with a water pipe, and one end of the water pipe is fixedly connected with the condensation pipe.

As a further description of the above technical solution:

the switch assembly comprises a switch knife switch, the switch knife switch is fixedly connected with the inner side wall of the device body and electrically connected with the water pump, a blade is rotatably connected to the bottom end of the switch knife switch, and a first rotating pair is fixedly connected to one side of the upper end of the blade.

As a further description of the above technical solution:

the movable assembly comprises a pressure plate, a plurality of reset springs are fixedly connected to one side of the pressure plate, one ends of the reset springs are fixedly connected with the inner side wall of the arc extinguishing chamber, through holes are formed in the side wall of the arc extinguishing chamber and located above the pressure plate, and sliding rods are in sliding contact with the inner portions of the through holes.

As a further description of the above technical solution:

the bottom of one end, located the inboard arc-extinguishing chamber, of the slide bar is fixedly connected with a fixed rod, the surface of the fixed rod is fixedly connected with a rope, and one end of the rope is fixedly connected with a pressure plate.

As a further description of the above technical solution:

the one end fixedly connected with second revolute pair outside the arc-extinguishing chamber is located to the slide bar, second revolute pair rotates and is connected with the movable rod, the other end and the first revolute pair rotation of movable rod are connected.

The utility model discloses following beneficial effect has:

compared with the prior art, this SVG high voltage circuit breaker's arc extinguishing device through having set up structural component such as water tank, condenser pipe, water pump and water pipe, drives the water pump and can make the inside water of water tank carry out rapid cooling to the arc-extinguish chamber through condenser pipe circulation flow.

Through having set up structural component such as pressure plate, reset spring, slide bar, dead lever, rope, switch knife and movable rod, after electric arc produced, the gas in the arc-extinguish chamber expands rapidly, and pressure plate compression reset spring promotes the slide bar simultaneously and removes to the blade, makes the blade be close to switch knife through the movable rod and makes its closure, then starts the water pump, makes the inside water of water tank flow through condenser pipe circulation, to arc-extinguish chamber rapid cooling.

Drawings

Fig. 1 is a cross-sectional view of an arc extinguishing device of an SVG high-voltage circuit breaker according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is an enlarged view at B in fig. 1.

Illustration of the drawings:

1. a device body; 2. an arc extinguishing chamber; 3. a condenser tube; 4. a water tank; 5. a water pump; 6. a water pipe; 7. a pressure plate; 8. a rope; 9. fixing the rod; 10. a slide bar; 11. a return spring; 12. a through hole; 13. a second revolute pair; 14. a movable rod; 15. a first rotating pair; 16. switching a knife switch; 17. a blade.

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.

Referring to fig. 1-3, the utility model provides a pair of arc control device of SVG high voltage circuit breaker: the device comprises a device body 1, wherein an arc extinguishing chamber 2 is arranged in the middle of the inner side of the device body 1, a condensing pipe 3 is uniformly wound on the outer surface of the arc extinguishing chamber 2, a water tank 4 is fixedly arranged at the upper end of the arc extinguishing chamber 2, two ends of the condensing pipe 3 are respectively and fixedly connected with two ends of the water tank 4, and a driving assembly for driving water in the water tank 4 to circularly move through the condensing pipe 3 is arranged in the water tank 4; a switch assembly for controlling the starting and stopping of the driving assembly is fixedly mounted on one side of the inner side wall of the device body 1, and a movable assembly for controlling the opening and closing of the switch assembly is fixedly mounted on one side, close to the switch assembly, of the inner side wall of the arc extinguishing chamber 2.

Drive assembly includes water pump 5, water pump 5 and water tank 4's interior diapire fixed connection, water pump 5's output fixedly connected with water pipe 6, the one end and the 3 fixed connection of condenser pipe of water pipe 6.

The switch component comprises a switch knife switch 16, the switch knife switch 16 is fixedly connected with the inner side wall of the device body 1 and electrically connected with the water pump 5, the bottom end of the switch knife switch 16 is rotatably connected with a blade 17, and one side of the upper end of the blade 17 is fixedly connected with a first rotating pair 15.

The movable assembly comprises a pressure plate 7, one side of the pressure plate 7 is fixedly connected with a plurality of reset springs 11, the pressure plate 7 is enabled to gradually reset along with the falling of the temperature, one ends of the reset springs 11 are fixedly connected with the inner side wall of the arc extinguishing chamber 2, the side wall of the arc extinguishing chamber 2 is located above the pressure plate 7, a through hole 12 is formed in the upper portion of the pressure plate 7, the through hole 12 and a slide rod 10 are in sealing contact with the arc extinguishing chamber 2 through a sealing ring, and the slide rod 10 is in sliding contact with the inner portion of the through hole 12.

The bottom of one end of the slide bar 10, which is positioned at the inner side of the arc extinguishing chamber 2, is fixedly connected with a fixing rod 9, the surface of the fixing rod 9 is fixedly connected with a rope 8, and one end of the rope 8 is fixedly connected with a pressure plate 7.

One end of the sliding rod 10, which is positioned at the outer side of the arc extinguishing chamber 2, is fixedly connected with a second rotating pair 13, the second rotating pair 13 is rotatably connected with a movable rod 14, and the other end of the movable rod 14 is rotatably connected with a first rotating pair 15.

The working principle is as follows: after electric arc is generated in the arc extinguishing chamber 2, gas in the arc extinguishing chamber 2 expands rapidly, so that the pressure plate 7 compresses the return spring 11, the slide bar 10 is pushed to move towards the blade 17, the blade 17 is close to the switch knife 16 through the movable rod 14 to be closed, so that the water pump 5 is started, water in the water tank 4 flows circularly through the condensation pipe 3, the temperature of the arc extinguishing chamber 2 is cooled rapidly, the temperature drops after a period of time, the return spring 11 resets gradually, then the pressure plate 7 pulls the slide bar 10 to move inwards through the rope 8, so that the blade 17 is disconnected, and the water pump 5 can be stopped.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an arc control device of SVG high voltage circuit breaker, includes device body (1), its characterized in that: an arc extinguishing cover (2) is arranged in the middle of the inner side of the device body (1), a condensing pipe (3) is uniformly wound on the outer surface of the arc extinguishing cover (2), a water tank (4) is fixedly mounted at the upper end of the arc extinguishing cover (2), two ends of the condensing pipe (3) are respectively and fixedly connected with two ends of the water tank (4), and a driving assembly for driving water in the water tank (4) to circularly move through the condensing pipe (3) is arranged in the water tank (4);

a switch assembly for controlling the starting and stopping of the driving assembly is fixedly mounted on one side of the inner side wall of the device body (1), and a movable assembly for controlling the opening and closing of the switch assembly is fixedly mounted on one side, close to the switch assembly, of the inner side wall of the arc extinguishing chamber (2).

2. The arc extinguishing device of the SVG high voltage circuit breaker according to claim 1, wherein: the driving assembly comprises a water pump (5), the water pump (5) is fixedly connected with the inner bottom wall of the water tank (4), the output end of the water pump (5) is fixedly connected with a water pipe (6), and one end of the water pipe (6) is fixedly connected with the condensation pipe (3).

3. The arc extinguishing device of the SVG high voltage circuit breaker according to claim 2, wherein: the switch assembly comprises a switch knife switch (16), the switch knife switch (16) is fixedly connected with the inner side wall of the device body (1) and electrically connected with the water pump (5), a blade (17) is rotatably connected to the bottom end of the switch knife switch (16), and a first rotating pair (15) is fixedly connected to one side of the upper end of the blade (17).

4. The arc extinguishing device of the SVG high voltage circuit breaker according to claim 3, wherein: the movable assembly comprises a pressure plate (7), a plurality of reset springs (11) are fixedly connected to one side of the pressure plate (7), one ends of the reset springs (11) are fixedly connected with the inner side wall of the arc extinguishing chamber (2), through holes (12) are formed in the side wall of the arc extinguishing chamber (2) and above the pressure plate (7), and sliding rods (10) are in sliding contact with the inner portions of the through holes (12).

5. The arc extinguishing device of the SVG high-voltage circuit breaker according to claim 4, characterized in that: the novel arc extinguishing cover is characterized in that a fixing rod (9) is fixedly connected to the bottom of one end, located on the inner side of the arc extinguishing cover (2), of the sliding rod (10), a rope (8) is fixedly connected to the surface of the fixing rod (9), and one end of the rope (8) is fixedly connected with the pressure plate (7).

6. The arc extinguishing device of the SVG high-voltage circuit breaker according to claim 5, characterized in that: the one end fixedly connected with second revolute pair (13) in slide bar (10) is located arc-extinguishing chamber (2) outside, second revolute pair (13) rotate and are connected with movable rod (14), the other end and the first revolute pair (15) of movable rod (14) rotate and are connected.