CN212161683U

CN212161683U - High-voltage alternating-current vacuum circuit breaker

Info

Publication number: CN212161683U
Application number: CN202021290104.8U
Authority: CN
Inventors: 陈竟辉; 危美华; 胡宗山
Original assignee: Tianyi Tongyi Electric Co ltd
Current assignee: Tianyi Tongyi Electric Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2020-12-15
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses a high-voltage alternating current vacuum circuit breaker, including control box, insulator, plug-in strip and pull ring, the bottom of control box is provided with heat dissipation mechanism, the both sides of control box all are fixed with the insulator, the one end of control box articulates there is the plug-in strip, one side of fixed block and the one end fixed connection of control box, the inside of mount pad all is provided with the spout with the inside of fixed block, the inside of spout all is provided with the bolt. The utility model discloses a be provided with the dismouting structure, take the control box, then place the inside of mount pad with the fixed block on the control box, spout on the fixed block this moment just in time aligns with the spout on the mount pad, and the staff takes out the bolt again and injects the inside of spout with the bolt, and spout and bolt block this moment can accomplish the installation of control box, have realized the dismouting of being convenient for of control box to the practicality of the device when using has been strengthened greatly.

Description

High-voltage alternating-current vacuum circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field specifically is a high-pressure alternating current vacuum circuit breaker.

Background

Along with the development of economy and the enhancement of national comprehensive strength, the power development of our country is very rapid, and all the parts are visible as transmission towers, so that the civil power utilization is basically realized, in the process of power transmission, current short circuit can happen accidentally and needs to be maintained by maintenance workers, and the circuit needs to be controlled and protected by using a special high-voltage alternating-current vacuum circuit breaker when the circuit is completely disconnected during maintenance due to the danger of high voltage;

however, when the conventional ac vacuum circuit breaker is used, it is inconvenient to mount and dismount the circuit breaker, which affects the working efficiency, and thus a high voltage ac vacuum circuit breaker has been developed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high voltage alternating current vacuum circuit breaker to propose the inconvenient problem of carrying out the dismouting of circuit breaker in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-voltage alternating-current vacuum circuit breaker, includes control box, insulator, plug-in strip and pull ring, the bottom of control box is provided with heat dissipation mechanism, the both sides of control box all are fixed with the insulator, the one end of control box articulates there is the plug-in strip, one side of plug-in strip is fixed with the pull ring, the lateral wall of pull ring is provided with protective structure, the other end of control box is provided with the dismouting structure, the dismouting structure includes mount pad, fixed block, spout and bolt, the mount pad sets up in the one end of control box, one side of fixed block and the one end fixed connection of control box, the inside of mount pad all is provided with the spout with the inside of fixed block, the inside of spout all is provided with the bolt.

Preferably, the cross section of the sliding groove is larger than that of the bolt, and a sliding structure is formed between the sliding groove and the bolt.

Preferably, four groups of insulators are arranged, and the four groups of insulators are symmetrically distributed around a central axis of the control box.

Preferably, heat dissipation mechanism includes dust screen, negative-pressure air fan and louvre, negative-pressure air fan all installs in the bottom of control box, negative-pressure air fan's top and bottom all are provided with the louvre, the bottom mounting of louvre has the dust screen.

Preferably, the protection structure comprises a clamping block, an insulating edge and a clamping groove, the insulating edge is arranged on the outer side wall of the pull ring, the clamping groove is fixed inside the insulating edge, and the clamping block is arranged inside the clamping groove.

Preferably, one end of each fixture block is fixed with the outer side wall of the pull ring, and the fixture blocks are distributed on the outer side wall of the pull ring in an annular shape.

Compared with the prior art, the beneficial effects of the utility model are that: the high-voltage alternating-current vacuum circuit breaker not only realizes convenient disassembly and assembly of the circuit breaker and realizes enhancement of internal heat dissipation of the circuit breaker, but also realizes the function of insulation protection;

1. the control box is taken out by arranging the dismounting structure at one end of the control box, then the fixed block on the control box is placed in the mounting seat, so that the chute on the fixed block is exactly aligned with the chute on the mounting seat, a worker takes out the bolt to insert the bolt into the chute, and the chute is clamped with the bolt, so that the control box can be mounted, the control box is convenient to dismount and mount, and the practicability of the device is greatly enhanced when the device is used;

2. the bottom end of the control box is provided with the heat dissipation mechanism, the negative pressure fan is started to discharge heat inside the control box to the outside of the control box through the heat dissipation holes, and meanwhile, dust outside the control box is not easy to enter the control box due to the use of the dustproof net, so that the heat dissipation effect of the circuit breaker is enhanced, and the service life of electronic elements inside the control box is greatly prolonged;

3. be provided with protective structure through the lateral wall at the pull ring, take out insulating limit, then with the block that carries out of the fixture block on insulating limit and draw-in groove block, and then install insulating limit at the lateral wall of pull ring, the use of insulating limit makes the insulating effect of this circuit breaker better simultaneously, greatly increased the security of the device when using.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a schematic side view of the detachable structure of the present invention;

fig. 3 is a schematic view of the bottom view of the partial section structure of the heat dissipation mechanism of the present invention;

fig. 4 is a schematic view of the front view partial section structure of the protection structure of the present invention.

In the figure: 1. a control box; 2. a heat dissipation mechanism; 201. a dust screen; 202. a negative pressure fan; 203. heat dissipation holes; 3. an insulator; 4. a knife switch; 5. a protective structure; 501. a clamping block; 502. an insulating edge; 503. a card slot; 6. a pull ring; 7. a disassembly and assembly structure; 701. a mounting seat; 702. a fixed block; 703. a chute; 704. and (4) a bolt.

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. 1-4, the present invention provides an embodiment: a high-voltage alternating-current vacuum circuit breaker comprises a control box 1, an insulator 3, a switch blade 4 and a pull ring 6, wherein a heat dissipation mechanism 2 is arranged at the bottom end of the control box 1, the heat dissipation mechanism 2 comprises a dust screen 201, a negative pressure fan 202 and heat dissipation holes 203, the negative pressure fan 202 is installed at the bottom end of the control box 1, the type of the negative pressure fan 202 can be 9-19NO:16D, the input end of the negative pressure fan 202 is electrically connected with the output end of a control panel through a lead, the top end and the bottom end of the negative pressure fan 202 are respectively provided with the heat dissipation holes 203, and the dust screen 201 is fixed at the bottom;

specifically, as shown in fig. 1 and 3, when the mechanism is used, firstly, when the temperature inside the control box 1 is too high and heat dissipation is required, a worker starts the negative pressure fan 202 first, and hot air inside the control box 1 can be discharged to the outside of the control box 1 through the action of the heat dissipation holes 203 under the action of the negative pressure fan 202, because four groups of negative pressure fans 202 are provided, the heat dissipation effect is good, and meanwhile, the dust outside the control box 1 is not easy to enter the inside of the control box 1 due to the use of the dust screen 201, the heat dissipation effect of the circuit breaker is enhanced, so that the service life of electronic components inside the control box 1 is greatly prolonged;

insulators 3 are fixed on two sides of a control box 1, four groups of insulators 3 are arranged, the four groups of insulators 3 are symmetrically distributed about a central axis of the control box 1, a knife switch 4 is hinged to one end of the control box 1, a pull ring 6 is fixed on one side of the knife switch 4, a protective structure 5 is arranged on the outer side wall of the pull ring 6, the protective structure 5 comprises a fixture block 501, an insulating edge 502 and a fixture groove 503, the insulating edge 502 is arranged on the outer side wall of the pull ring 6, the fixture groove 503 is fixed inside the insulating edge 502, the fixture block 501 is arranged inside the fixture groove 503, one end of the fixture block 501 is fixed with the outer side wall of the pull ring 6, and the fixture blocks 501 are annularly distributed;

specifically, as shown in fig. 1 and 4, when the mechanism is used, firstly, before the circuit breaker is installed, a worker takes out the insulating edge 502, aligns the clamping groove 503 on the insulating edge 502 with the clamping block 501 on the outer side wall of the pull ring 6, and then clamps the insulating edge 502 one by one, so that the installation of the insulating edge 502 can be completed, and meanwhile, the insulating effect of the circuit breaker is better due to the use of the insulating edge 502, and the safety of the device in use is greatly improved;

the other end of the control box 1 is provided with a dismounting structure 7, the dismounting structure 7 comprises an installation seat 701, a fixed block 702, a sliding groove 703 and a bolt 704, the installation seat 701 is arranged at one end of the control box 1, one side of the fixed block 702 is fixedly connected with one end of the control box 1, the sliding groove 703 is arranged in the installation seat 701 and the fixed block 702, the bolt 704 is arranged in the sliding groove 703, the cross section of the sliding groove 703 is larger than that of the bolt 704, and a sliding structure is formed between the sliding groove 703 and the bolt 704;

specifically, as shown in fig. 1 and fig. 2, when the mechanism is used, firstly, when the control box 1 needs to be disassembled, a worker firstly takes the control box 1, then places a fixed block 702 on the control box 1 into the mounting seat 701, at this time, a chute 703 on the fixed block 702 is just aligned with a chute 703 on the mounting seat 701, the worker takes out a bolt 704 again to insert the bolt 704 into the chute 703, at this time, the chute 703 is clamped with the bolt 704, so that the control box 1 can be installed, when the control box 1 needs to be disassembled, the worker firstly takes out the bolt 704 from the chute 703, at this time, the fixed block 702 is separated from the mounting seat 701, the control box 1 can be taken down, so that the disassembly of the control box 1 is completed, the control box 1 is convenient to disassemble, and the practicability of the device is greatly enhanced.

The working principle is as follows: when the device is used, an external power supply is adopted, firstly, a worker carries the device to a proper position, takes out the insulating edge 502, aligns the clamping groove 503 on the insulating edge 502 with the clamping block 501 on the outer side wall of the pull ring 6, and then clamps the insulating edge 502 one by one, so that the installation of the insulating edge 502 can be completed;

then, the control box 1 is taken out, then a fixed block 702 on the control box 1 is placed in the mounting seat 701, at the moment, a sliding groove 703 on the fixed block 702 is just aligned with a sliding groove 703 on the mounting seat 701, a worker takes out the bolt 704 to insert the bolt 704 into the sliding groove 703, at the moment, the sliding groove 703 is clamped with the bolt 704, the control box 1 can be installed, at the moment, the worker penetrates the pull ring 6 with a finger to close or open the knife switch 4, and due to the existence of the insulating edge 502, the worker is safer when opening or closing the circuit breaker;

finally, when the temperature in control box 1 is too high and needs to be dissipated, the worker starts negative pressure fan 202 at first, the hot air in control box 1 can be discharged to the outside of control box 1 through the effect of heat dissipation holes 203 under the work of negative pressure fan 202, because negative pressure fan 202 is provided with four groups, the heat dissipation effect is good, the dust screen 201 is used to make the dust outside of control box 1 not easily enter the inside of control box 1 simultaneously, when control box 1 needs to be disassembled, the worker firstly takes out bolt 704 from the inside of chute 703, fixed block 702 is separated from mounting seat 701 at this moment, can take down control box 1, and then accomplish the dismantlement of control box 1, finally accomplish the work of this circuit breaker.

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 or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a high voltage alternating current vacuum circuit breaker, includes control box (1), insulator (3), plug-in strip (4) and pull ring (6), its characterized in that: the bottom end of the control box (1) is provided with a heat dissipation mechanism (2), insulators (3) are fixed on both sides of the control box (1), one end of the control box (1) is hinged with a knife switch (4), one side of the knife switch (4) is fixed with a pull ring (6), the outer side wall of the pull ring (6) is provided with a protective structure (5), the other end of the control box (1) is provided with a dismounting structure (7), the dismounting structure (7) comprises a mounting seat (701), a fixed block (702), a sliding groove (703) and a bolt (704), the mounting seat (701) is arranged at one end of the control box (1), one side of the fixing block (702) is fixedly connected with one end of the control box (1), the inner portion of the mounting seat (701) and the inner portion of the fixing block (702) are both provided with sliding grooves (703), and the inner portions of the sliding grooves (703) are both provided with bolts (704).

2. A high voltage ac vacuum interrupter as claimed in claim 1, wherein: the cross section of the sliding groove (703) is larger than that of the bolt (704), and a sliding structure is formed between the sliding groove (703) and the bolt (704).

3. A high voltage ac vacuum interrupter as claimed in claim 1, wherein: the four sets of insulators (3) are arranged, and the four sets of insulators (3) are symmetrically distributed about the central axis of the control box (1).

4. A high voltage ac vacuum interrupter as claimed in claim 1, wherein: heat dissipation mechanism (2) include dust screen (201), negative-pressure air fan (202) and louvre (203), negative-pressure air fan (202) are all installed in the bottom of control box (1), the top and the bottom of negative-pressure air fan (202) all are provided with louvre (203), the bottom mounting of louvre (203) has dust screen (201).

5. A high voltage ac vacuum interrupter as claimed in claim 1, wherein: the protective structure (5) comprises a clamping block (501), an insulating edge (502) and a clamping groove (503), wherein the insulating edge (502) is arranged on the outer side wall of the pull ring (6), the clamping groove (503) is fixed inside the insulating edge (502), and the clamping block (501) is arranged inside the clamping groove (503).

6. A high voltage AC vacuum interrupter as claimed in claim 5, wherein: one end of each clamping block (501) is fixed with the outer side wall of the pull ring (6), and the clamping blocks (501) are distributed on the outer side wall of the pull ring (6) in an annular mode.