CN217086457U - Solid-sealed indoor high-voltage vacuum circuit breaker - Google Patents

Abstract

The utility model discloses a solid-sealed indoor high-voltage vacuum circuit breaker, which comprises a vacuum circuit breaker body and a solid-sealed sleeve assembly. The beneficial effects of the utility model are as follows: by arranging the fixed cover assembly, it is convenient to protect the vacuum interrupter, avoid it being affected by the external environment, and improve its service life, and an insulating pad is fixedly arranged at the connection of the cylinder body, and The inner wall of the cylinder is provided with an insulating coating to prevent high-voltage current from penetrating the cylinder and improve the safety in use; by fixing rollers at the four corners of the lower surface of the base, it is convenient to push the vacuum circuit breaker body into the control cabinet There is no control cabinet circuit for connection, and the operation is convenient. The surface of the base is provided with an insulating coating, which can avoid damage to the operator caused by the leakage of electricity when the power is connected. The upper surface of the base is convenient for disassembly of the vacuum circuit breaker body, which provides convenience for later maintenance and replacement.

Description

A solid-sealed indoor high-voltage vacuum circuit breaker

technical field

The utility model relates to a vacuum circuit breaker, in particular to a solid-sealed indoor high-voltage vacuum circuit breaker, which belongs to the technical field of vacuum circuit breakers.

Background technique

The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are high vacuum; it has the advantages of small size, light weight, suitable for frequent operation, and no need for maintenance for arc extinguishing. The application is more popular. Vacuum circuit breaker is an indoor power distribution device in a 3-10kV, 50Hz three-phase AC system. It can be used for protection and control of electrical equipment in industrial and mining enterprises, power plants, and substations. In the places of maintenance and frequent operation, circuit breakers can be configured in central cabinets, double-layer cabinets and fixed cabinets to control and protect high-voltage electrical equipment.

However, the existing solid-sealed indoor high-voltage vacuum circuit breakers have some problems in use:

1) When the existing solid-sealed indoor high-voltage vacuum circuit breaker is used for solid-sealing the vacuum interrupter, the operation steps are cumbersome, and the insulation performance of the solid-sealing component is poor, and leakage occurs during use, which is safe to use. Low;

2) When the existing solid-sealed indoor high-voltage vacuum circuit breaker is installed in the control cabinet, since there is no roller under the base, it is inconvenient to push it in, resulting in the inability to connect the terminals quickly, and the vacuum circuit breaker and the base cannot be quickly connected. It cannot be disassembled between, and it is inconvenient for later maintenance and replacement.

Utility model content

The purpose of the utility model is to provide a solid-sealed indoor high-voltage vacuum circuit breaker in order to solve the above problems.

The utility model achieves the above-mentioned purpose through the following technical solutions: including

The vacuum circuit breaker body is provided with a plurality of them, and a base is fixedly installed at the lower end of the base, and a joystick is fixedly installed on one side wall of the base;

The fixed envelope assembly is arranged on the outside of the vacuum circuit breaker body, and the vacuum interrupter inside the vacuum circuit breaker body can be protected by arranging the fixed envelope assembly.

As a further solution of the present invention, a mounting plate is fixedly connected to the lower side of each of the vacuum circuit breaker bodies, and two sides of the mounting plate are provided with fastening screws, and the vacuum circuit breaker body is fastened The screw is fixed on the upper surface of the base.

As a further solution of the present invention: the vacuum circuit breaker body is composed of a vacuum interrupter and an insulating support, the upper and lower ends of the insulating support are fixed with a vacuum interrupter, and the vacuum interrupter located at the upper end is The upper side of the arc-extinguishing chamber is provided with an upper connection terminal, a current transformer is also fixedly connected to the vertical side wall of the insulating support and the vacuum arc-extinguishing chamber, and a lower connection terminal is fixedly connected to the end of the current transformer , the lower end of the current transformer is fixed with an insulator.

As a further solution of the present invention, a protective cover is provided on the outer side of the current transformer and the insulator.

As a further solution of the present invention, rollers are fixedly installed at the four corners of the lower surface of the base.

As a further solution of the present invention, the surface of the base is provided with an insulating coating.

As a further solution of the present invention, the fixing cover assembly is composed of two cylinders with a semicircular cross-section, and vertically arranged connecting ears are fixedly connected to the outer side walls of each of the cylinders. The connecting ears are provided with a plurality of threaded holes, and the inner threads of the threaded holes are provided with fastening bolts. The cooperation between them is fixed.

As a further solution of the present invention, an insulating pad is fixedly arranged at the joint of the two cylinder bodies, and an insulating coating is arranged on the inner wall of the cylinder body.

The beneficial effects of the present utility model are:

1) In the present invention, the vacuum interrupter is conveniently protected by setting the fixed cover assembly, avoiding the influence of the external environment and improving its service life, and an insulating pad is fixed at the connection of the cylinder, and the The inner wall is provided with an insulating coating to prevent high-voltage current from penetrating the cylinder and improve the safety of use;

2) In the present utility model, rollers are fixedly installed at the four corners of the lower surface of the base, so that the vacuum circuit breaker body can be pushed into the control cabinet without the control cabinet circuit for connection, and the operation is convenient. The surface of the base is provided with insulating coating. The vacuum circuit breaker body is fixed on the upper surface of the base by fastening screws, which is convenient to disassemble the vacuum circuit breaker body for later maintenance and replacement. to offer comfort.

Description of drawings

Fig. 1 is the front view structure schematic diagram of solid-sealed indoor high-voltage vacuum circuit breaker of the present invention;

FIG. 2 is a schematic view of the test structure of the solid-sealed indoor high-voltage vacuum circuit breaker of the present invention;

Figure 3 is a schematic front view of the structure of the high-voltage vacuum circuit breaker of the present invention when it is not sealed;

Figure 4 is a schematic side view of the structure of the high-voltage vacuum circuit breaker of the present invention when it is not sealed;

5 is a schematic diagram of the three-dimensional structure of the cylinder in the utility model;

Fig. 6 is a schematic view of enlarged structure at A place in Fig. 1;

In the figure: 1. Vacuum circuit breaker body, 101, insulating support, 102, vacuum interrupter, 103, upper terminal, 104, current transformer, 105, lower terminal, 106, lower terminal, 2, lower Terminal, 3, Lower terminal, 4, Lower terminal, 5, Roller, 6, Joystick, 7, Cylinder, 8, Connection lug, 9, Fastening bolt, 10, Insulation coating, 11, Protective cover , 12, insulating pad, 13, tighten the nut.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

Please refer to Figures 1 to 6, a solid-sealed indoor high-voltage vacuum circuit breaker, including

The vacuum circuit breaker body 1 is provided with a plurality of them, and a base 4 is fixedly installed at the lower end of the base 4, and a joystick 6 is fixedly installed on one side wall of the base 4;

The fixed envelope assembly is arranged on the outside of the vacuum circuit breaker body 1 , and the vacuum interrupter inside the vacuum circuit breaker body 1 can be protected by providing the solid envelope assembly.

In the embodiment of the present invention, the vacuum circuit breaker body 1 is composed of a vacuum interrupter 102 and an insulating support 101. The upper and lower ends of the insulating support 101 are fixed with a vacuum interrupter 102 at the upper end. The upper side of the vacuum interrupter 102 is provided with an upper terminal 103, the insulating support 101 and the vertical sidewall of the vacuum interrupter 102 are also fixed with a current transformer 104. The current transformer The end of the 104 is fixed with a lower terminal 105, and the lower end of the current transformer 104 is fixed with an insulator 106, which can control the on-off of the circuit and improve the safety of electricity consumption.

In the embodiment of the present invention, the sealing sleeve assembly is composed of two cylindrical bodies 7 with a semicircular cross-section, and a vertically arranged connecting lug 8 is fixed on the outer side wall of each of the cylindrical bodies 7 , the connecting ear 8 is provided with a plurality of threaded holes, and the inner thread of the threaded hole is provided with a fastening bolt 9, the fastening bolt 9 is threaded with a fastening nut 13, and the two cylinder bodies 7 pass through The cooperation between the tightening bolt 9 and the tightening nut 13 is fixed, and the installation method is simple. By setting the fixed cover assembly, it is convenient to protect the vacuum interrupter 102, avoid it from being affected by the external environment, and improve its service life.

In the embodiment of the present invention, the outer sides of the current transformer 104 and the insulator 106 are both provided with a protective cover 11, which can protect them.

Embodiment 2

Please refer to Figures 1 to 6, a solid-sealed indoor high-voltage vacuum circuit breaker, including

The vacuum circuit breaker body 1 is provided with a plurality of them, and a base 4 is fixedly installed at the lower end of the base 4, and a joystick 6 is fixedly installed on one side wall of the base 4;

The fixed envelope assembly is arranged on the outside of the vacuum circuit breaker body 1 , and the vacuum interrupter inside the vacuum circuit breaker body 1 can be protected by providing the solid envelope assembly.

In the embodiment of the present invention, a mounting plate 2 is fixedly connected to the lower side of each of the vacuum circuit breaker bodies 1, and fastening screws 3 are provided through both sides of the mounting plate 2. The vacuum circuit breaker body 1. It is fixed on the upper surface of the base 4 by fastening screws 3, which facilitates the disassembly of the vacuum circuit breaker body 1 and provides convenience for later maintenance and replacement.

In the embodiment of the present invention, the four corners of the lower surface of the base 4 are fixedly installed with rollers 5, which is convenient for pushing the vacuum circuit breaker body 1 into the control cabinet without the control cabinet circuit for connection, and the operation is convenient.

In the embodiment of the present invention, the surface of the base 4 is provided with an insulating coating, which can avoid damage to the operator caused by leakage of electricity when the power is connected.

In the embodiment of the present invention, an insulating pad 12 is fixed at the connection of the two cylinder bodies 7, and an insulating coating 10 is provided on the inner wall of the cylinder body 7 to prevent high-voltage current from penetrating the cylinder body 7 and improve the use of safety.

Working principle: When using this kind of solid-sealed indoor high-voltage vacuum circuit breaker, firstly fix the vacuum circuit breaker body 1 on the upper surface of the base 4 through the fastening screws 3, and then fix it on the outside of the vacuum interrupter 102. The two cylinders 7 are placed on the outside of the vacuum interrupter 102, and then they are fixed by the cooperation between the tightening bolts 9 and the tightening nuts 13. The installation method is simple. Protect the vacuum interrupter 102 from being affected by the external environment and improve its service life, and then push the base 4 to move through the joystick 6. Under the rolling action of the roller 5, the vacuum circuit breaker can be easily connected to the control system. When in use, since the insulating pad 12 is fixedly arranged at the connection of the cylinder body 7, and the insulating coating 10 is provided on the inner wall of the cylinder body 7, it can effectively prevent high-voltage current from penetrating the cylinder body 7 and improve the Use safety.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (8)

1. A solid-sealed indoor high-voltage vacuum circuit breaker is characterized in that, comprising a vacuum circuit breaker body (1), which is provided with a plurality of bases (4) fixedly installed at the lower end thereof, and a joystick (6) is fixedly installed on one side wall of the base (4); The fixed envelope assembly is arranged on the outer side of the vacuum circuit breaker body (1), and the vacuum interrupter inside the vacuum circuit breaker body (1) can be protected by arranging the fixed envelope assembly. 2. A solid-sealed indoor high-voltage vacuum circuit breaker according to claim 1, characterized in that: a mounting plate (2) is fixedly connected to the lower side of each of the vacuum circuit breaker body (1), so Fastening screws (3) are provided through the two sides of the mounting plate (2), and the vacuum circuit breaker body (1) is fastened to the upper surface of the base (4) by the fastening screws (3). 3. A solid-sealed indoor high-voltage vacuum circuit breaker according to claim 1, characterized in that: the vacuum circuit breaker body (1) is composed of a vacuum interrupter (102) and an insulating support (101) The upper and lower ends of the insulating support (101) are fixedly connected with a vacuum interrupter (102), and the upper side of the vacuum interrupter (102) located at the upper end is provided with an upper connection terminal (103), so A current transformer (104) is also fixedly connected to the vertical side walls of the insulating support (101) and the vacuum interrupter (102), and a lower terminal (104) is fixedly connected to the end of the current transformer (104). 105), an insulator (106) is fixedly connected to the lower end of the current transformer (104). 4 . The solid-sealed indoor high-voltage vacuum circuit breaker according to claim 3 , wherein a protective cover ( 11 ) is provided on the outer sides of the current transformer ( 104 ) and the insulator ( 106 ). 5 . 5 . The solid-sealed indoor high-voltage vacuum circuit breaker according to claim 1 , wherein the four corners of the lower surface of the base ( 4 ) are fixedly installed with rollers ( 5 ). 6 . 6 . The solid-sealed indoor high-voltage vacuum circuit breaker according to claim 1 , wherein an insulating coating is provided on the surface of the base ( 4 ). 7 . 7. A solid-sealed indoor high-voltage vacuum circuit breaker according to claim 1, characterized in that: the solid-sealed sleeve assembly is composed of two cylindrical bodies (7) with a semicircular cross-section, and each of the Vertically arranged connecting ears (8) are fixedly connected to the outer side walls of the cylinder body (7), a plurality of threaded holes are provided through the connecting ears (8), and the inner threads of the threaded holes are provided with fastening bolts (9), a tightening nut (13) is threaded on the tightening bolt (9), and the two cylinder bodies (7) are matched by the tightening bolt (9) and the tightening nut (13). The effect is fixed. 8. A solid-sealed indoor high-voltage vacuum circuit breaker according to claim 7, characterized in that: an insulating pad (12) is fixedly arranged at the junction of the two cylindrical bodies (7), and the cylindrical bodies ( The inner wall of 7) is provided with an insulating coating (10).

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