CN217720481U

CN217720481U - Small-size modularization inflatable circuit breaker cabinet

Info

Publication number: CN217720481U
Application number: CN202220974799.4U
Authority: CN
Inventors: 凌斯; 凌巍; 周绍喜
Original assignee: Zhejiang Lingao Electrical Industrial Co ltd
Current assignee: Zhejiang Lingao Electrical Industrial Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-11-01
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses a small-size modularization inflatable circuit breaker cabinet, the intelligent cabinet temperature adjusting device comprises a cabinet body, the internal integrated installation department of high-voltage component that is equipped with of cabinet, switch display installation department and cable butt joint portion all are located high-voltage component integrated installation department one side, the switch display installation department includes switch installation department and display installation department, the cable butt joint portion is located switch display installation department lower part, the integrated installation department of high-voltage component includes the box, the case chamber, the seat of intaking and the seat of being qualified for the next round of competitions, the box adopts seal structure, it is gaseous that packing has SF6 in the case chamber in the box. The utility model optimizes the cabinet structure and adopts the partition arrangement, so that the whole space is more compact and reasonable, and the cabinet is particularly suitable for small sites; the design of a built-in sealing box body structure is adopted, so that the high-pressure element is further protected in a sealing way, and the interference of the external environment is avoided.

Description

Small-size modularization inflatable circuit breaker cabinet

Technical Field

The utility model relates to a cubical switchboard assembly technical field, in particular to small-size modularization inflatable circuit breaker cabinet.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, has the function equivalent to the combination of a fuse type switch, an over-under-heat relay and the like, and generally does not need to change parts after breaking fault current.

The existing circuit breaker cabinet mostly uses environment-friendly gas to carry out totally-enclosed insulation, and particularly uses the environment-friendly insulating gas to carry out arc extinguishing and insulation on the inside of the circuit breaker cabinet so as to ensure the electricity safety. Most circuit breaker cabinets adopt a central-positioned type device cabinet, an isolating switch, an earthing switch and a vacuum circuit breaker are mutually independent, a vacuum circuit breaker handcart is adopted to be shaken in and out to serve as the isolating switch, the earthing switch is installed below the vacuum circuit breaker, and the combination is large in size and not suitable for a secondary power distribution system.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims at providing a small-size modularization inflatable circuit breaker cabinet has good protecting effect, and the small-size place of specially adapted uses, can satisfy the butt joint of secondary distribution system simultaneously.

The utility model provides a technical problem can adopt following technical scheme to realize:

the utility model provides a small-size modularization inflatable circuit breaker cabinet, includes the cabinet body, the internal integrated installation department of high-voltage component, switch display installation department and cable butt joint portion of being equipped with of cabinet, switch display installation department and cable butt joint portion all are located integrated installation department one side of high-voltage component, the switch display installation department includes switch installation department and display installation department, the cable butt joint portion is located switch display installation department lower part, the integrated installation department of high-voltage component includes box, case chamber, seat and the seat of being qualified for the next round of competitions, the box adopts seal structure, it is gaseous that the packing has SF6 in the case chamber in the box.

The cable inlet seat and the cable outlet seat are both connected with end-sealing joints in a sealing mode, the end-sealing joints are used for sealing cable groups to lead in or out, and the two end-sealing joints are fixedly installed on the box body respectively.

The outgoing line seat is connected with the cable butt joint portion through a butt joint, the butt joint is provided with a front cable joint and a rear insertion type joint, the front cable joint is connected with a cable group, and the cable group is fixedly mounted with the cabinet body through a cable clamp.

And the zero sequence current transformer and the current transformer are arranged on the cable group in a matched manner and are installed through the current transformer bracket.

The current transformer support is installed in a matched mode with the pressure relief plate, a grounding bus bar is further arranged on the other side of the pressure relief plate in a matched mode, and one end of the grounding bus bar is installed in a matched mode with the box body.

The box body is made of a stainless steel box body.

The cabinet body is provided with a panel part and a cable door plate part, the panel part is positioned on the outer surface part of the switch display installation part and the display installation part, and the cable door plate part is positioned on the outer surface part of the cable butt joint part.

And an SF6 gas density meter, a switch panel, a fault indicator, a high-voltage charged display and a plurality of operation hole sites are arranged on the panel part.

An interlocking mechanism is arranged between the cable door panel part and the inner cavity of the cabinet body, and a handle is arranged on the cable door panel part.

An instrument box is arranged at the upper part of the cabinet body.

Compared with the prior art, the utility model following beneficial effect has: the utility model optimizes the cabinet structure and adopts the partition arrangement, so that the whole space is more compact and reasonable, and the cabinet is particularly suitable for small sites; the high-pressure element is further sealed and protected by adopting the structural design of the built-in sealing box body, so that the interference of the external environment is avoided; the design of the sealed cable inlet and outlet is optimized, and the sealing effect of the box body is improved; optimize the pressure release structural design, have reliable pressure release passageway, improve the security.

The features of the present invention will be apparent from the accompanying drawings and from the detailed description of the preferred embodiments which follows.

Drawings

Fig. 1 is a schematic view of an overall assembly structure of the present invention;

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

FIG. 3 is a schematic view of the installation structure of the butt joint part of the end-capped joint and the cable of the present invention;

fig. 4 is a schematic view of the overall assembly structure of the present invention;

fig. 5 is a schematic structural view of the high-voltage component integrated mounting portion of the present invention;

wherein: 1. a cabinet body; 2. a high-voltage component integrated mounting part; 21. a box body; 22. a box cavity; 23. a wire outlet seat; 24. a wire inlet seat; 3. a switch display mounting portion; 31. a switch mounting portion; 32. a display mounting section; 4. end-capped linkers; 41. butt joints; 42. a cable front connector; 43. a rear plug-in connector; 5. an interlock mechanism; 6. an instrument box; 7. a cable butt joint section; 71. a cable group; 72. a rear plug-in arrester; 73. a zero sequence current transformer; 74. a current transformer; 75. a current transformer support; 76. a pressure relief plate; 77. a ground bus; 78. a cable clamp; 8. a panel portion; 81. SF6 gas density meter; 82. a switch panel; 83. A fault indicator; 84. a high voltage live display; 85. operating hole sites; 9. a cable door panel portion; 91. A handle.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Combine shown in attached figures 1 to 5, this embodiment discloses a small-size modularization inflatable circuit breaker cabinet, including the cabinet body 1, the internal integrated installation department 2 of high voltage component that is equipped with of cabinet, switch display installation department 3 and cable butt joint portion 7 all are located high voltage component integrated installation department 2 one side, the optimization adopts the design of subregion subsection division, make each functional area independent setting thereof, it is more compact reasonable to arrange between the part, be convenient for realize the miniaturized of the whole volume of the cabinet body 1 and handle, improve holistic space utilization.

The switch display installation part 3 comprises a switch installation part 31 and a display installation part 32, the cable butt joint part 7 is located on the lower portion of the display installation part 3, the middle portion of the cable butt joint part is used as a separation area through the interlocking mechanism 5, the partition is clear, the area division is convenient to achieve, and the planning of the internal space is convenient.

The high-voltage element integrated installation part 2 comprises a box body 21, a box cavity 22, a wire inlet seat 24 and a wire outlet seat 23, the box body 21 adopts a sealing structure, the box cavity 22 in the box body 21 is filled with SF6 gas, under the working state, the internal air pressure is 1.4bar usually, the waterproof grade of the box body 21 is IP67, and the high-voltage element integrated installation part is convenient to be applied to various environments; the high-voltage component integrated installation part 2 is used for being matched with and installing conductive parts of high-voltage components such as a circuit breaker, an isolating switch and the like in a main loop, and the conductive parts are concentrated and packaged in a box body in a sealed state, so that the high-voltage component integrated installation part is not interfered by the external environment, the running stability of equipment is improved, and the equipment can be used in a long-term safe running state even in a severe environment area; the integrated installation part of the high-voltage element is arranged as a unilateral independent area, the internal components of the integrated installation part can be divided into a fixed module and an expandable module for design, at most 6 modules can be configured, if the number of the configuration modules exceeds 6, the switch cabinet can be connected by adopting an expandable bus to realize a half module structure, the full module configuration can be carried out by using the mode of the expandable bus among all the modules, and a simple to complex power distribution scheme is formed by combining different functional agricultural reclamation combinations so as to meet various configuration requirements in a secondary substation or a switching station.

Preferably, the wire inlet seat 24 and the wire outlet seat 23 are both hermetically connected with the end-sealing joints 4, the end-sealing joints 4 are used for hermetically leading wires or leading wires from the cable group 71, and the two end-sealing joints 4 are respectively and fixedly installed on the box body 21; by adopting the design of a sealing structure, the sealing effect of the box body 21 is better, and the box cavity 22 is ensured to be in an SF6 gas protection state, so that the box cavity is prevented from being interfered by the outside, and the use safety of products is improved.

Furthermore, the outlet seat 23 is connected with the cable butt joint part 7 through a butt joint 41, the butt joint 41 is provided with a front cable joint 42 and a rear plug-in joint 43, the structural design is optimized, and the partial butt joint is realized, so that the whole space is more compact and reasonable; the cable front connector 42 is connected with a cable group 71, the cable group 71 is fixedly mounted with the cabinet body 1 through a cable clamp 78, a zero sequence current transformer 73 and a current transformer 74 are arranged on the cable group 71 in a matched mode, the zero sequence current transformer 73 and the current transformer 74 are mounted through a current transformer support 75, the current transformer support 75 is mounted with a pressure relief plate 76 in a matched mode, the other side of the pressure relief plate 76 is further provided with a grounding bus bar 77 in a matched mode, and one end of the grounding bus bar 77 is used for being mounted with the cabinet body 21 in a matched mode; the rear plug-in connector 43 is matched with a rear plug-in arrester 72; the structural design of the pressure relief plate 76 and the grounding bus bar 77 is optimized, so that the pressure relief plate has a reliable pressure relief channel, and the use safety of equipment is improved.

Preferably, the box body 21 is made of a stainless steel box body; the stainless steel is adopted for manufacturing, so that the problems of corrosion and rust can be avoided, and the stainless steel can be installed in areas such as damp areas, sand-rich areas, dust-rich areas, salt fog areas, mines, box-type substations and the like.

Preferably, the cabinet 1 is provided with a panel portion 8 and a cable door portion 9, the panel portion 8 is positioned at the outer surface portion of the switch display mounting portion 3, and the cable door portion 9 is positioned at the outer surface portion of the cable butting portion 7; an SF6 gas density meter 81, a switch panel 82, a fault indicator 83, a high-voltage live display 84 and a plurality of operation hole sites 85 are arranged on the panel part 8, wherein the operation hole sites 85 generally comprise an isolating switch operation hole, a breaker energy storage operation hole, a breaker opening operation hole, a breaker closing operation hole and a grounding switch operation hole; an interlocking mechanism 5 is arranged between the cable door plate part 9 and the inner cavity of the cabinet body 1, a handle 91 is arranged on the cable door plate part 9, and a mechanical interlocking structure is adopted, so that the operation reliability is improved.

Preferably, the upper part of the cabinet body 1 is provided with an instrument box 6.

The utility model optimizes the cabinet structure and adopts the partition arrangement, so that the whole space is more compact and reasonable, and the cabinet is particularly suitable for small sites; the high-pressure element is further sealed and protected by adopting the structural design of the built-in sealing box body, so that the interference of the external environment is avoided; the design of a sealed cable inlet and outlet is optimized, and the sealing effect of the box body is improved; optimize the pressure release structural design, have reliable pressure release passageway, improve the security.

The above, it is only the preferred embodiment of the present invention, not to make any restriction on the utility model, all the bases the technical principle of the present invention is to any simple modification, equivalent change or modification made by the above embodiments, still belong to the technical solution scope of the present invention.

Claims

1. A small-size modularization inflatable circuit breaker cabinet, includes the cabinet body (1), its characterized in that: be equipped with integrated installation department of high voltage component (2), switch display installation department (3) and cable butt joint portion (7) in the cabinet body (1), switch display installation department (3) and cable butt joint portion (7) all are located integrated installation department of high voltage component (2) one side, switch display installation department (3) are including switch installation department (31) and display installation department (32), cable butt joint portion (7) are located switch display installation department (3) lower part, integrated installation department of high voltage component (2) are including box (21), case chamber (22), inlet wire seat (24) and outlet wire seat (23), box (21) adopt seal structure, it is gaseous that packing has SF6 in case chamber (22) in box (21).

2. A compact modular gas-filled circuit breaker cabinet according to claim 1, characterized in that: the incoming line seat (24) and the outgoing line seat (23) are both connected with end-sealing joints (4) in a sealing mode, the end-sealing joints (4) are used for enabling a cable group (71) to be led in or out in a sealing mode, and the two end-sealing joints (4) are fixedly installed on the box body (21) respectively.

3. A compact modular gas-filled circuit breaker cabinet according to claim 2, characterized in that: the outgoing line seat (23) is connected with the cable butt joint portion (7) through a butt joint connector (41), the butt joint connector (41) is provided with a cable front joint (42) and a rear insertion type joint (43), the cable front joint (42) is connected with a cable line group (71), and the cable line group (71) is fixedly mounted on the cabinet body (1) through a cable clamp (78).

4. A compact modular gas-filled circuit breaker cabinet according to claim 3, characterized in that: and the cable line group (71) is provided with a zero sequence current transformer (73) and a current transformer (74) in a matching way, and the zero sequence current transformer (73) and the current transformer (74) are installed through a current transformer bracket (75).

5. A compact modular gas-filled circuit breaker cabinet according to claim 4, characterized in that: the current transformer support (75) is installed in a matched mode with the pressure relief plate (76), the other side of the pressure relief plate (76) is further provided with a grounding bus bar (77) in a matched mode, and one end of the grounding bus bar (77) is used for being installed in a matched mode with the box body (21).

6. A compact modular gas-filled circuit breaker cabinet according to claim 1, characterized in that: the box body (21) is made of a stainless steel box body.

7. A compact modular gas-filled circuit breaker cabinet according to any one of claims 1 to 6, characterized in that: be equipped with panel portion (8) and cable conductor door board portion (9) on the cabinet body (1), panel portion (8) are located switch display installation department (3) exterior portion, cable conductor door board portion (9) are located the exterior portion of cable butt joint portion (7).

8. A compact modular gas-filled circuit breaker cabinet according to claim 7, characterized in that: and an SF6 gas density meter (81), a switch panel (82), a fault indicator (83), a high-voltage electrified display (84) and a plurality of operation hole positions (85) are arranged on the panel part (8).

9. A compact modular gas-filled circuit breaker cabinet according to claim 7, characterized in that: an interlocking mechanism (5) is arranged between the cable door plate portion (9) and the inner cavity of the cabinet body (1), and a handle (91) is arranged on the cable door plate portion (9).

10. A compact modular gas-filled circuit breaker cabinet according to claim 7, characterized in that: an instrument box (6) is arranged on the upper part of the cabinet body (1).