CN210956537U

CN210956537U - Long-life vacuum circuit breaker based on outdoor use

Info

Publication number: CN210956537U
Application number: CN202020035372.9U
Authority: CN
Inventors: 陈刚健; 郭建平; 叶伟; 马玉蛟
Original assignee: Ccre Electric Co ltd
Current assignee: Ccre Electric Co ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-07-07
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses a long-life vacuum circuit breaker based on outdoor use, the bottom of the two side walls in the protection box body is connected with a limiting spring, one end of the limiting spring is provided with a connecting block, one end of the connecting block is symmetrically provided with a limiting post, the two ends of the vacuum circuit breaker body are symmetrically provided with a limiting groove corresponding to the position of the limiting post, the bottom end of the protection box body is positioned at the two sides of the vacuum circuit breaker body and is symmetrically provided with a groove, the inside of the groove is provided with an extrusion block, one end of the extrusion block is connected with a screw rod, the utility model has scientific and reasonable structure, safe and convenient use, the vacuum circuit breaker body is fixed by the cooperation of the extrusion block and the screw rod, the time of disassembly and installation is reduced, the working efficiency is improved, the position of the limiting post can be adjusted by utilizing the limiting spring, the position of the vacuum circuit breaker body during installation is prevented from shifting.

Description

Long-life vacuum circuit breaker based on outdoor use

Technical Field

The utility model relates to a vacuum circuit breaker technical field specifically is long-life vacuum circuit breaker based on outdoor use.

Background

The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum, and has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is more popularized in a power distribution network, the vacuum circuit breaker is an indoor power distribution device in a 3-10 kV and 50Hz three-phase alternating current system, is used for protecting and controlling electrical equipment, and is particularly suitable for use places requiring no oil, less maintenance and frequent operation, and the circuit breaker can be configured in a middle cabinet, a double-layer cabinet and a fixed cabinet and used for controlling and protecting high-voltage electrical equipment;

the vacuum circuit breaker mounting means of outdoor use adopts the welding mostly in the existing market, wastes time and energy, and difficult dismantlement changes the position, has reduced vacuum circuit breaker's practicality, so the utility model provides a long-life vacuum circuit breaker based on outdoor use satisfies people's demand.

SUMMERY OF THE UTILITY MODEL

The utility model provides a long-life vacuum circuit breaker based on outdoor use can effectively solve the most welding that adopts of the mounting means that proposes in the above-mentioned background art, wastes time and energy, and difficult dismantlement changes the position, has reduced the problem of vacuum circuit breaker's practicality.

In order to achieve the above object, the utility model provides a following technical scheme: the long-life vacuum circuit breaker based on outdoor use comprises a protection box body, wherein a vacuum circuit breaker body is installed at the bottom end inside the protection box body, the bottoms of two side walls inside the protection box body are both connected with limiting springs, one end of each limiting spring is provided with a connecting block, one end of each connecting block is symmetrically provided with limiting columns, limiting grooves are symmetrically formed in positions, corresponding to the limiting columns, of two ends of the vacuum circuit breaker body, the limiting columns are embedded and installed inside the limiting grooves, grooves are symmetrically formed in positions, located on two sides of the vacuum circuit breaker body, of the bottom end of the protection box body, extrusion blocks are installed inside the grooves, and one ends of the extrusion blocks are connected with;

the utility model discloses a drying machine, including protection box, baffle, air-out pipe, axial fan, air-out pipe, the case lid is installed at the top of protection box, the baffle is installed to the both ends symmetry of case lid, the top of case lid is connected with vacuum interrupter, the air-out pipe is installed to the one end of protection box, the internally mounted of air-out pipe has axial fan, the other end of protection box and the corresponding position department of air-out pipe are installed out, the inside axial fan that is.

Preferably, the air inlet pipe and the air outlet pipe are connected with a cover plate through hinges, the bottom of the cover plate is connected with a fixing block, and a fixing bolt is installed at one end of the fixing block.

Preferably, one end of the extrusion block is attached to the vacuum circuit breaker body, a clamping groove is formed in the other end of the extrusion block, one end of the screw rod is clamped in the clamping groove, the other end of the screw rod penetrates through the protection box body, and the screw rod is connected with the protection box body through threads.

Preferably, the bottom of the vacuum arc-extinguishing chamber is connected with the vacuum circuit breaker body, and a sealing rubber pad is installed at the joint of the vacuum arc-extinguishing chamber and the box cover.

Preferably, the input end of the axial flow fan is electrically connected with the output end of an external power supply, and the axial flow fan is fixedly connected with the air inlet pipe through a mounting hoop.

Preferably, the baffle is internally provided with a waterproof diaphragm and is respectively positioned right above the air inlet pipe and the air outlet pipe.

Preferably, the cover plate is internally provided with filter holes, the fixing bolt penetrates through the fixing block, and the fixing bolt is respectively in threaded connection with the air inlet pipe and the air outlet pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. be provided with spacing spring, spacing post, the spacing groove, a groove, extrusion piece and screw rod, cooperation through extrusion piece and screw rod is used, be convenient for fix the vacuum circuit breaker body, reduce the time of dismantling the installation, work efficiency is improved, and utilize spacing spring can adjust the position of spacing post, cooperation through spacing post and spacing groove is used, it is spacing further to carry out the vacuum circuit breaker body, avoid the vacuum circuit breaker body when the installation position takes place to squint, and spacing spring and spacing post have good buffering effect, play the cushioning effect to the vacuum circuit breaker body in the use, make the vacuum circuit breaker body obtain better protection.

2. Be provided with the baffle, the air-supply line, axial fan, go out tuber pipe and drier, through axial fan and the use that goes out the tuber pipe, guarantee the inside circulation of air of protection box, dispel the heat to the vacuum circuit breaker body, avoid the high temperature of vacuum circuit breaker body to influence normal use, use through the cooperation of drier and baffle simultaneously, it is inside to avoid there being moisture and moisture to get into the protection box, make the inside environment of protection box remain dry throughout, device life has been improved.

3. Be provided with apron, fixed block and fixing bolt, through the use of apron, can filter the inside air of entering protection box, avoid having foreign matters such as dust to get into the inside normal use that influences vacuum circuit breaker of protection box, use through the cooperation of fixed block and fixing bolt simultaneously, be convenient for open the apron and change the drier.

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 schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the internal structure of the protective box of the present invention;

fig. 3 is a schematic view of the installation structure of the air outlet pipe of the present invention;

fig. 4 is a schematic structural diagram of the region a in fig. 3 according to the present invention.

Reference numbers in the figures: 1. a protective box body; 2. a vacuum circuit breaker body; 3. a limiting spring; 4. connecting blocks; 5. a limiting column; 6. a limiting groove; 7. a groove; 8. extruding the block; 9. a screw; 10. a box cover; 11. a vacuum arc-extinguishing chamber; 12. a baffle plate; 13. an air inlet pipe; 14. an axial flow fan; 15. an air outlet pipe; 16. placing a chamber; 17. a desiccant; 18. a cover plate; 19. a fixed block; 20. and (5) fixing the bolt.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-4, the utility model provides a technical scheme, based on the long-life vacuum circuit breaker of outdoor use, the bottom of the interior of the protection box 1 is provided with a vacuum circuit breaker body 2, the bottoms of the two side walls of the interior of the protection box 1 are both connected with a limiting spring 3, one end of the limiting spring 3 is provided with a connecting block 4, one end of the connecting block 4 is symmetrically provided with a limiting post 5, the two ends of the vacuum circuit breaker body 2 are symmetrically provided with a limiting groove 6 corresponding to the position of the limiting post 5, the limiting post 5 is embedded in the limiting groove 6, the limiting spring 3 drives the limiting post 5 to be embedded in the limiting groove 6, the vacuum circuit breaker body 2 can be further limited, the vacuum circuit breaker body 2 is prevented from being pushed by an extrusion block 8 to cause position deviation when being installed, and the limiting spring 3 and the limiting post 5 have good buffering effect, play a, the vacuum circuit breaker body 2 is better protected, the bottom end of the protection box body 1 is symmetrically provided with grooves 7 at the positions of two sides of the vacuum circuit breaker body 2, extrusion blocks 8 are installed inside the grooves 7, one ends of the extrusion blocks 8 are connected with screw rods 9, one ends of the extrusion blocks 8 are attached to the vacuum circuit breaker body 2, the other ends of the extrusion blocks 8 are provided with clamping grooves, one ends of the screw rods 9 are clamped in the clamping grooves, the other ends of the screw rods 9 penetrate through the protection box body 1, the screw rods 9 are in threaded connection with the protection box body 1, the extrusion blocks 8 can be pushed to be close to the vacuum circuit breaker body 2 through the screw rods 9, the vacuum circuit breaker body 2 is clamped and fixed, the time for dismounting and mounting is shortened, and;

the top of the protection box body 1 is provided with a box cover 10, two ends of the box cover 10 are symmetrically provided with baffle plates 12, the baffle plates 12 are internally provided with waterproof diaphragms, the baffle plates 12 are respectively positioned right above the air inlet pipe 13 and the air outlet pipe 15 to shield the air inlet pipe 13 and the air outlet pipe 15 and prevent rainwater from drifting into the protection box body 1, the top of the box cover 10 is connected with a vacuum arc extinguish chamber 11, the main function of the vacuum arc extinguish chamber is that after a medium-high voltage circuit is cut off power supply, the arc extinguish chamber can be rapidly extinguished and current can be inhibited through excellent indoor vacuum insulation, accidents and accidents are avoided, the bottom end of the vacuum arc extinguish chamber 11 is connected with a vacuum circuit breaker body 2, a sealing rubber pad is arranged at the joint of the vacuum arc extinguish chamber 11 and the box cover 10, the joint is ensured to be sealed, rainwater is prevented from entering the protection box body, an axial flow fan 14 is arranged inside the air inlet pipe 13, the input end of the axial flow fan 14 is electrically connected with the output end of an external power supply, the axial flow fan 14 is fixedly connected with the air inlet pipe 13 through a mounting hoop, the axial flow fan 14 blows air inside the protection box body 1 out of the air outlet pipe 15, so that air inside the protection box body 1 circulates, namely, the vacuum circuit breaker body 2 is radiated, the normal use is prevented from being influenced by overhigh temperature of the vacuum circuit breaker body 2, the air outlet pipe 15 is arranged at the position, corresponding to the air inlet pipe 13, of the other end of the protection box body 1, a placing cavity 16 is arranged at the position, located at one side of the axial flow fan 14, inside the placing cavity 16 is filled with a drying agent 17, moisture in the air entering the protection box body 1 is absorbed, one end of each of the air inlet pipe 13 and the air outlet pipe 15 is connected with, fixing bolt 20 is installed to the one end of fixed block 19, and the filtration pore has been seted up to the inside of apron 18, filters the inside air that gets into protection box 1, avoids having foreign matters such as dust to get into the inside normal use that influences vacuum circuit breaker of protection box 1, and fixing bolt 20 runs through in fixed block 19, passes through threaded connection between fixing bolt 20 and air-supply line 13 and the play tuber pipe 15 respectively, is convenient for open apron 18 and changes drier 17.

The utility model discloses a theory of operation and use flow: in the process of using the long-life vacuum circuit breaker based on outdoor use, firstly, the connecting block 4 and the limiting column 5 are pulled outwards, the limiting spring 3 is compressed, the vacuum circuit breaker body 2 is placed inside the protective box body 1, the connecting block 4 is loosened, the limiting spring 3 extends, the limiting column 5 is embedded and installed inside the limiting groove 6, then the screw rod 9 is screwed, the screw rod 9 drives the extrusion block 8 to slide forwards inside the groove 7, and the extrusion block 8 is tightly attached to the surface of the vacuum circuit breaker body 2, so that the vacuum circuit breaker body 2 can be fixed;

in the normal use process, axial fan 14 starts, axial fan 14's model is SP4T-550A, carry out forced air cooling heat dissipation to vacuum circuit breaker body 2, external air is filtered earlier by apron 18, keep off the dust impurity outside the device, simultaneously drier 17 can absorb moisture and moisture in the air, air gets into inside protection box 1 by air-supply line 13 at last, and the inside air of protection box 1 is discharged by going out tuber pipe 15, if when raining, baffle 12 can block the rainwater, avoid the rainwater directly to get into inside protection box 1 by air-supply line 13 and play tuber pipe 15, if need change drier 17, only need twist fixing bolt 20, open apron 18, it can to change drier 17.

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 may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Long-life vacuum circuit breaker based on outdoor use, including protection box (1), its characterized in that: the vacuum circuit breaker comprises a protection box body (1), and is characterized in that a vacuum circuit breaker body (2) is installed at the bottom end inside the protection box body (1), limiting springs (3) are connected to the bottoms of two side walls inside the protection box body (1), a connecting block (4) is installed at one end of each limiting spring (3), limiting columns (5) are symmetrically installed at one end of each connecting block (4), limiting grooves (6) are symmetrically formed in positions, corresponding to the limiting columns (5), of two ends of the vacuum circuit breaker body (2), the limiting columns (5) are embedded and installed inside the limiting grooves (6), grooves (7) are symmetrically formed in positions, located on two sides of the vacuum circuit breaker body (2), of the bottom end of the protection box body (1), extrusion blocks (8) are installed inside the grooves (7), and one end of each extrusion block (;

case lid (10) are installed at the top of protection box (1), baffle (12) are installed to the both ends symmetry of case lid (10), the top of case lid (10) is connected with vacuum interrupter (11), air-supply line (13) are installed to the one end of protection box (1), the internally mounted of air-supply line (13) has axial fan (14), the other end of protection box (1) is installed out tuber pipe (15) with the corresponding position department of air-supply line (13), air-supply line (13) inside is located axial fan (14) one side position department and has been seted up and has been placed cavity (16), the inside packing of placing cavity (16) has drier (17).

2. Long life vacuum circuit breaker based on outdoor use according to claim 1, characterized in that: the air inlet pipe (13) and the one end of air outlet pipe (15) all have apron (18) through hinged joint, the bottom of apron (18) is connected with fixed block (19), fixing bolt (20) are installed to the one end of fixed block (19).

3. Long life vacuum circuit breaker based on outdoor use according to claim 1, characterized in that: the one end and the laminating of vacuum circuit breaker body (2) of extrusion piece (8) mutually, the draw-in groove has been seted up to the other end of extrusion piece (8), the one end joint of screw rod (9) is in the draw-in groove, the other end of screw rod (9) runs through in protection box (1), pass through threaded connection between screw rod (9) and protection box (1).

4. Long life vacuum circuit breaker based on outdoor use according to claim 1, characterized in that: the bottom of vacuum interrupter (11) is connected with vacuum circuit breaker body (2), sealing rubber pad is installed to the junction of vacuum interrupter (11) and case lid (10).

5. Long life vacuum circuit breaker based on outdoor use according to claim 1, characterized in that: the input end of the axial flow fan (14) is electrically connected with the output end of an external power supply, and the axial flow fan (14) is fixedly connected with the air inlet pipe (13) through a mounting hoop.

6. Long life vacuum circuit breaker based on outdoor use according to claim 1, characterized in that: the interior of baffle (12) is installed waterproof membrane, baffle (12) are located air-supply line (13) and play tuber pipe (15) directly over respectively.

7. Long life vacuum interrupter based on outdoor use according to claim 2, characterized in that: the filter holes are formed in the cover plate (18), the fixing bolts (20) penetrate through the fixing blocks (19), and the fixing bolts (20) are connected with the air inlet pipe (13) and the air outlet pipe (15) through threads respectively.