CN213212042U

CN213212042U - Vacuum arc-extinguishing device of high-voltage vacuum circuit breaker

Info

Publication number: CN213212042U
Application number: CN202022126948.5U
Authority: CN
Inventors: 崔高鹏; 薛明亮; 杨建俊; 刘征
Original assignee: Cetc North Intelligent Electric Co ltd
Current assignee: Cetc North Intelligent Electric Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-14
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses a high pressure vacuum circuit breaker's vacuum arc control device, including the main casing body, the top of the main casing body slides the intercommunication and has the casing that moves, and the inside of the main casing body is provided with shielding room, and shielding room's inside is provided with moving contact and static contact, and the one end that the static contact was kept away from to the moving contact runs through in the casing, and the rigid coupling has and is located the outside movable conducting rod that moves of movable casing, and the static contact is kept away from the one end of moving. The utility model discloses in move the casing and drive when apron removes, make the apron can not shelter from the through-hole, thereby make the heat can pass through the through-hole, the breather plate discharges to the outside, reach radiating effect, outside operating device continues the pulling and moves the conducting rod and move the casing, make driving piece on the apron transmit kinetic energy for drive mechanism, make drive mechanism drive the breather plate and slide in the spread groove, avoid the breather plate to stop in the through-hole, can reduce thermal discharge otherwise, make the apron cover the through-hole, avoid heat loss, reach heat retaining effect.

Description

Vacuum arc-extinguishing device of high-voltage vacuum circuit breaker

Technical Field

The utility model belongs to the technical field of the vacuum interrupter, especially, relate to high-pressure vacuum circuit breaker's vacuum arc control device.

Background

A vacuum arc-extinguishing chamber, also known as a vacuum switch tube, is a core component of a medium-high voltage power switch, has the main functions of rapidly extinguishing arc and inhibiting current after a medium-high voltage circuit is cut off a power supply through excellent vacuum insulativity in the tube, avoids accidents and accidents, is mainly applied to a power transmission and distribution control system of electric power, and is also applied to power distribution systems of metallurgy, mines, petroleum, chemical engineering, railways, broadcasting, communication, industrial high-frequency heating and the like. The device has the characteristics of energy conservation, material conservation, fire prevention, explosion prevention, small volume, long service life, low maintenance cost, reliable operation, no pollution and the like.

The prior art has the following problems: the existing vacuum arc-extinguishing device is not provided with a temperature regulation control device, so that the vacuum arc-extinguishing device is easily influenced by external temperature to cause temperature change, and the use of the vacuum arc-extinguishing device is not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can accelerate heat dissipation or abundant heat retaining vacuum arc control device to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: high-pressure vacuum circuit breaker's vacuum arc control device, including the main casing body, the top slip intercommunication of the main casing body has movable casing, the bottom intercommunication of the main casing body has quiet casing, the inside of the main casing body is provided with shielding room, shielding room's inside is provided with moving contact and static contact, the one end that the static contact was kept away from to the moving contact runs through in moving the casing, and the rigid coupling has the movable conducting rod that moves the casing outside, the static contact is kept away from the one end of moving the contact and is run through quiet casing, and the rigid coupling has quiet conducting rod, shielding room's outside rigid coupling has a plurality of fin, set up the through-hole that corresponds with the fin position on the main casing body, slide in the through-hole.

The spread groove has been seted up to the inner wall of through-hole, is provided with drive mechanism in the spread groove, and the apron is provided with the driving piece near one side of the main casing body, wherein, the driving piece is used for the drive mechanism makes drive mechanism drive breather plate slides in through-hole and spread groove.

In a preferred embodiment, the driving part comprises a rack fixedly connected to the inner side of the cover plate, the transmission mechanism comprises a connecting shaft rotatably arranged on the inner wall of the connecting groove, a gear is sleeved on the outer side wall of the connecting shaft, a connecting hole is formed in the connecting groove, teeth of the gear rotate in the connecting hole, a traction rope is wound and fixed on the outer side wall of the connecting shaft, and one end, far away from the connecting shaft, of the traction rope is fixedly connected with the vent plate.

In a preferred embodiment, a baffle plate for covering the through hole is fixedly connected to one end of the cover plate, which is far away from the movable shell, and the thickness of the baffle plate is larger than that of the cover plate.

In a preferred embodiment, a spring is fixedly connected to one end of the aeration plate far away from the traction rope, and the spring is fixedly connected with the inner wall of the connecting groove.

In a preferred embodiment, a guide plate is fixedly connected to the outer side of the aeration plate, and a guide groove for the guide plate to slide is formed in the inner wall of the through hole and the inner wall of the connecting groove.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up the apron on the movable casing of activity, outside operating device makes when making movable conducting rod remove the brake break, the heat effluvium when setting up fin on the shielding room can produce electric arc, when moving the casing and drive the apron and remove, make the apron can not shelter from the through-hole, thereby make the heat can pass through the through-hole, the breather plate discharges to the outside, reach radiating effect, when needs increase radiating speed, outside operating device continues the pulling and moves the conducting rod and move the casing, make driving piece on the apron transmit for drive mechanism with kinetic energy, make drive mechanism drive the breather plate and slide in the spread groove, avoid the breather plate to stop in the through-hole, reach quick radiating effect, otherwise can reduce thermal discharge, make the apron cover the through-hole, avoid the heat to run off, reach heat retaining effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a sectional view of the whole structure of the present invention;

FIG. 2 is a schematic overall structure of the present invention;

FIG. 3 is a sectional view of the main housing of FIG. 1 according to the present invention;

FIG. 4 is a schematic view of the connecting slot of FIG. 3 according to the present invention;

fig. 5 is an enlarged view of a structure at a in fig. 3 according to the present invention;

in the figure: 1. a main housing; 2. static contact; 3. a through hole; 4. a moving contact; 5. a movable conductive rod; 6. a movable shell; 7. a cover plate; 8. a heat sink; 9. a stationary housing; 10. a static conductive rod; 11. A shielding chamber; 12. a breather plate; 13. a spring; 14. a rack; 15. a hauling rope; 16. a connecting shaft; 17. connecting grooves; 18. a gear; 19. and connecting the holes.

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 fig. 1-5, the present invention provides the following technical solutions: high-pressure vacuum circuit breaker's vacuum arc extinguishing device, including main casing body 1, the top slip intercommunication of main casing body 1 has movable casing 6, the bottom intercommunication of main casing body 1 has quiet casing 9, main casing body 1's inside is provided with shielding room 11, shielding room 11's inside is provided with moving contact 4 and static contact 2, moving contact 4 is kept away from the one end of static contact 2 and is run through in moving casing 6, and the rigid coupling has and is located the movable conducting rod 5 that moves the casing 6 outside, static contact 2 is kept away from the one end of moving contact 4 and is run through quiet casing 9, and the rigid coupling has static conducting rod 10, shielding room 11's outside rigid coupling has a plurality of fin 8, set up the through-hole 3 that corresponds with fin 8 position on the main casing body 1, it is provided with breather plate 12 to slide in through-hole 3, the lateral wall rigid.

The connecting groove 17 has been seted up to the inner wall of through-hole 3, is provided with drive mechanism in the connecting groove 17, and the apron 7 is provided with the driving piece near one side of main casing body 1, and wherein, the driving piece is used for driving drive mechanism, makes drive mechanism drive breather plate 12 slide in through-hole 3 and connecting groove 17.

In this embodiment: when the movable shell 6 is provided with the cover plate 7 and the external operating mechanism moves the movable conducting rod 5 and breaks the brake, the heat radiating fins 8 arranged on the shielding chamber 11 can radiate heat generated by electric arc, when the movable shell 6 drives the cover plate 7 to move, the cover plate 7 can not shield the through hole 3, thereby leading the heat to be discharged to the outside through the through holes 3 and the vent plate 12, achieving the effect of heat dissipation, when the heat dissipation speed needs to be increased, the external operating mechanism continues to pull the movable conducting rod 5 and the movable shell 6, make driving piece on the apron 7 transmit kinetic energy for drive mechanism, make drive mechanism drive breather plate 12 and slide in spread groove 17, avoid breather plate 12 to stop in through-hole 3, reach quick radiating effect, can reduce thermal discharge otherwise for apron 7 covers through-hole 3, avoids the heat to run off, reaches heat retaining effect.

Specifically, the driving part comprises a rack 14 fixedly connected to the inner side of the cover plate 7, the transmission mechanism comprises a connecting shaft 16 rotatably arranged on the inner wall of a connecting groove 17, a gear 18 is sleeved on the outer side wall of the connecting shaft 16, a connecting hole 19 is formed in the connecting groove 17, teeth of the gear 18 rotate in the connecting hole 19, a traction rope 15 is wound and fixed on the outer side wall of the connecting shaft 16, and one end, far away from the connecting shaft 16, of the traction rope 15 is fixedly connected with the vent plate 12; when the cover plate 7 slides, the rack 14 is in contact with the gear 18, the gear 18 and the connecting shaft 16 are driven to rotate, the connecting shaft 16 rotates to wind the traction rope 15, the ventilation plate 12 is pulled to slide through the traction rope 15, and the effect of increasing the heat dissipation rate is achieved.

Specifically, a baffle plate for covering the through hole 3 is fixedly connected to one end, away from the movable shell 6, of the cover plate 7, and the thickness of the baffle plate is larger than that of the cover plate 7; when the switch is switched on, the baffle covers the outer side of the through hole 3, so that the heat-preserving protection effect is achieved.

Specifically, one end of the vent plate 12, which is far away from the traction rope 15, is fixedly connected with a spring 13, and the spring 13 is fixedly connected with the inner wall of the connecting groove 17; when the movable shell 6 drives the cover plate 7 to move towards the static shell 9, the rack 14 can move and drive the gear 18 and the connecting shaft 16 to rotate, so that the paying-off effect is achieved, and meanwhile, the elastic force of the spring 13 pulls the vent plate 12 to retract into the through hole 3, so that the resetting effect is achieved.

Specifically, the outer side of the vent plate 12 is fixedly connected with a guide plate, and the inner walls of the through hole 3 and the connecting groove 17 are provided with guide grooves for the guide plate to slide; when the vent plate 12 slides, the guide plate and the guide groove can slide, so that the effect of supporting and guiding is achieved.

The utility model discloses a theory of operation and use flow: when the movable shell 6 is provided with the cover plate 7, the heat generated by electric arc can be dissipated by the radiating fins 8 arranged on the shielding chamber 11 when the movable shell 6 moves and breaks the brake, the cover plate 7 can not shield the through hole 3 when the movable shell 6 drives the cover plate 7 to move, so that the heat can be discharged to the outside through the through hole 3 and the vent plate 12, and the heat dissipation effect is achieved, when the heat dissipation speed needs to be increased, the movable conducting rod 5, the movable shell 6 and the cover plate 7 are continuously pulled by the external operating mechanism, the gear rack 14 is in contact with the gear 18 and drives the gear 18 and the connecting shaft 16 to rotate when the cover plate 7 slides, the connecting shaft 16 rotates to wind the traction rope 15, so that the vent plate 12 is pulled to slide by the traction rope 15, the vent plate 12 is prevented from staying in the through hole 3, and the effect of rapid heat dissipation is achieved, otherwise, the heat can be discharged, the cover plate 7 covers the through hole 3, heat loss is avoided, and a heat preservation effect is achieved.

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.

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. Vacuum arc extinguishing device of high-voltage vacuum circuit breaker, including main casing body (1), its characterized in that: the top end of the main shell (1) is in sliding communication with a movable shell (6), the bottom end of the main shell (1) is in communication with a static shell (9), a shielding chamber (11) is arranged inside the main shell (1), a movable contact (4) and a static contact (2) are arranged inside the shielding chamber (11), one end of the movable contact (4) far away from the static contact (2) penetrates through the movable shell (6), a movable conducting rod (5) located outside the movable shell (6) is fixedly connected, one end of the static contact (2) far away from the movable contact (4) penetrates through the static shell (9), a static conducting rod (10) is fixedly connected, a plurality of radiating fins (8) are fixedly connected to the outer side of the shielding chamber (11), a through hole (3) corresponding to the radiating fins (8) is formed in the main shell (1), a ventilating plate (12) is arranged in the through hole (3) in a sliding manner, and two cover, the cover plate (7) is movably arranged on the outer side of the through hole (3);

spread groove (17) have been seted up to the inner wall of through-hole (3), are provided with drive mechanism in spread groove (17), and apron (7) are provided with the driving piece near one side of main casing body (1), wherein, the driving piece is used for the drive mechanism makes drive mechanism drive breather plate (12) slide in through-hole (3) and spread groove (17).

2. The vacuum arc extinguishing apparatus of a high voltage vacuum circuit breaker according to claim 1, wherein: the driving piece includes rack (14) of rigid coupling inboard at apron (7), drive mechanism sets up in connecting axle (16) of spread groove (17) inner wall including rotating, and gear (18) have been cup jointed to the lateral wall of connecting axle (16), has seted up connecting hole (19) on spread groove (17), and the tooth of gear (18) rotates in connecting hole (19), and the lateral wall winding of connecting axle (16) is fixed with haulage rope (15), and the one end and breather plate (12) fixed connection of connecting axle (16) are kept away from in haulage rope (15).

3. The vacuum arc extinguishing apparatus of a high voltage vacuum circuit breaker according to claim 1, wherein: one end of the cover plate (7) far away from the movable shell (6) is fixedly connected with a baffle plate for covering the through hole (3), and the thickness of the baffle plate is larger than that of the cover plate (7).

4. The vacuum arc extinguishing apparatus of a high voltage vacuum circuit breaker according to claim 1, wherein: one end of the aeration plate (12) far away from the traction rope (15) is fixedly connected with a spring (13), and the spring (13) is fixedly connected with the inner wall of the connecting groove (17).

5. The vacuum arc extinguishing apparatus of a high voltage vacuum circuit breaker according to claim 1, wherein: the outer side of the ventilation plate (12) is fixedly connected with a guide plate, and the inner walls of the through hole (3) and the connecting groove (17) are provided with guide grooves for the guide plate to slide.