CN218896964U

CN218896964U - Switch board with electric leakage monitoring function

Info

Publication number: CN218896964U
Application number: CN202223380381.XU
Authority: CN
Inventors: 赵财雨; 郎春程; 祖懿
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-04-21
Anticipated expiration: 2032-12-16

Abstract

The utility model discloses a control cabinet with an electric leakage monitoring function, which comprises a control cabinet, wherein a cabinet door is hinged on the control cabinet through a hinge, a central processing unit is arranged on the inner side of the cabinet door, a display screen is embedded on the cabinet door, an audible and visual alarm is electrically connected on the display screen, and an electric leakage protection device is arranged in the control cabinet. Compared with the prior art, the control cabinet with the electric leakage monitoring function has the following advantages: the control cabinet is prevented from electric shock accidents by adopting double protection of the leakage protection device and the grounding protection conductor; the fan blows air into the control cabinet regularly, so that the air is discharged from the radiating holes, and the electric appliance wires in the control cabinet are cooled, so that the overhigh temperature is prevented; when the control cabinet is required to move, the rollers at four corners can be moved out of the grooves at the same time, so that the control cabinet can be conveniently moved and transported, and when the rollers are retracted into the grooves, the base enables the control cabinet to be stably supported on the ground.

Description

Switch board with electric leakage monitoring function

Technical Field

The utility model relates to the technical field of control cabinets, in particular to a control cabinet with an electric leakage monitoring function.

Background

The switch equipment, the measuring instrument, the protection electrical appliance and the auxiliary equipment are assembled in the closed or semi-closed metal cabinet or on the screen according to the electrical wiring requirement, the arrangement of the switch equipment, the measuring instrument, the protection electrical appliance and the auxiliary equipment is required to meet the requirement of normal operation of a power system, the maintenance is convenient, the safety of personnel and surrounding equipment is not endangered, if the electrical equipment continuously works at high strength, in addition, the electronic element and the lead are seriously oxidized due to the fact that the electrical equipment is not maintained and maintained in place in daily life, the rubber insulating layer loses elasticity, the rubber insulating layer is broken due to the fact that the rubber insulating layer is slightly careless, the internal components are burnt, and serious leakage accidents are caused.

Disclosure of Invention

The utility model aims to provide a control cabinet with an electric leakage monitoring function.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a switch board with electric leakage monitoring function, includes the switch board, it has the cabinet door to articulate through the hinge on the switch board, central processing unit is installed to the inboard of cabinet door, the embedded display screen that has on the cabinet door, electric connection has audible-visual annunciator on the display screen, install earth leakage protection device in the switch board, install two residual current transformer on the earth leakage protection device, the display screen passes through internal conductor electric connection at central processing unit signal output part, residual current transformer signal output part passes through internal conductor connection at central processing unit signal input part, the base is installed to the switch board below, install the ground connection protection conductor on the base.

Preferably, a groove is formed in the base, an adjusting device is installed in the groove, and the adjusting device comprises a threaded rod, a threaded sleeve, a perforated round plate and an adjusting piece;

the threaded rod is arranged in the groove, the threaded sleeve is sleeved on the threaded rod, the perforated circular plate is arranged on the threaded sleeve, the adjusting pieces are arranged on the perforated circular plate, the number of the adjusting pieces is not less than four, and the adjusting pieces are distributed below the perforated circular plate at equal intervals;

the adjusting piece comprises a pore plate, a vertical rod, a roller and a spring;

the pore plate is installed in the groove, the vertical rod passes through the hole on the pore plate, the roller is installed on the vertical rod, the spring is sleeved on the vertical rod, and the spring is arranged between the pore plate and the roller.

Preferably, a round hole is formed in the control cabinet, and a fan is arranged in the round hole.

Preferably, the fan is installed in the round hole through the mounting, the quantity of mounting is not less than four, the mounting equidistance distributes on the fan, the mounting includes otic placode and bolt, the otic placode is installed on the lateral wall of fan, the mounting hole has been seted up on the otic placode, the screw hole has been seted up on the switch board, the mounting hole is in same vertical line with the screw hole, the bolt passes the mounting hole and cup joints at threaded hole.

Preferably, the side wall of the control cabinet is provided with a heat dissipation hole.

Preferably, a switch is arranged on the cabinet door, and a warning board is attached to the cabinet door.

Compared with the prior art, the utility model has the beneficial effects that: compared with the prior art, the control cabinet with the electric leakage monitoring function has the following advantages:

the control cabinet is prevented from electric shock accidents by adopting double protection of the leakage protection device and the grounding protection conductor; the fan blows air into the control cabinet regularly, so that the air is discharged from the radiating holes, and the electric appliance wires in the control cabinet are cooled, so that the overhigh temperature is prevented;

when the control cabinet is required to move, the rollers at four corners can be moved out of the grooves at the same time, so that the control cabinet can be conveniently moved and transported, and when the rollers are retracted into the grooves, the base enables the control cabinet to be stably supported on the ground.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic structural diagram of the control cabinet, the leakage protection device and the residual current transformer in fig. 1;

fig. 3 is a schematic view of the structure of the base, the groove and the adjusting device in fig. 1.

In the figure: 1. control cabinet, 2, cabinet door, 3, switch, 4, adjusting device, 401, threaded rod, 402, thread bush, 403, foraminiferous round plate, 404, orifice plate, 405, montant, 406, gyro wheel, 407, spring, 5, warning sign, 6, base, 7, louvre, 8, round hole, 9, fan, 10, otic placode, 11, bolt, 12, earth leakage protection device, 13, ground connection protection conductor, 14, display screen, 15, audible-visual annunciator, 16, residual current transformer, 17, recess.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a switch board with electric leakage monitoring function, including switch board 1, the model of switch board 1 is xl21 power cabinet, install the louvre 7 through the hinge on the switch board 1, install switch 3 on the cabinet door 2, paste warning sign 5 on the cabinet door 2, the central processing unit is installed to the inboard of cabinet door 2, the model of central processing unit is S7-1200, the embedded display screen 14 that has on the cabinet door 2, the model of display screen 14 is ZT0020, be connected with audible and visual alarm 15 on the display screen 14 electrically, the model of audible and visual alarm 15 is P101-103, install earth leakage protection device 12 in the switch board 1, earth leakage protection device 12 'S model is CBM1LZ, install two residual current transformers 16 on the earth leakage protection device 12, residual current transformers 16' S model is KY, display screen 14 is connected at central processing unit signal output terminal through the internal wire electrically, residual current transformers 16 signal output terminal is connected at central processing unit signal input terminal through the internal wire, install base 6 below the switch board 1, install the conductor 13 on the base 6 ground connection conductor;

the internal lead of the control cabinet 1 respectively passes through the residual current transformer 16 on the earth leakage protection device 12, when the current parameter of the control cabinet 1 changes, the internal signal receiving module of the central processing unit receives the detection signal of the residual current transformer 16 to the current state of the circuit, the setting current of the protection action of the residual current transformer 16 can be from mA level to A level, the sensitivity is very high, therefore, the subtle change of the earth leakage current in the electric circuit can be detected, the residual current signal of the monitored circuit is extracted, the leakage current of the earth leakage system can be continuously detected, the primary current with larger value can be converted into the secondary current with smaller value through a certain transformation ratio, the secondary current is used for protection and measurement, and the purposes of monitoring the electric quantity of the three-phase system can be simultaneously realized.

The base 6 is provided with a groove 17, an adjusting device 4 is arranged in the groove 17, and the adjusting device 4 comprises a threaded rod 401, a threaded sleeve 402, a belt Kong Yuanban 403 and an adjusting piece;

the threaded rod 401 is arranged in the groove 17, the threaded sleeve 402 is sleeved on the threaded rod 401, the belt Kong Yuanban is arranged on the threaded sleeve 402, the control cabinet 1 is inclined, the threaded sleeve 402 is rotated to move downwards on the threaded rod 401, the threaded sleeve 402 drives the belt Kong Yuanban 403 to move downwards, the adjusting pieces are arranged on the perforated round plate 403, the number of the adjusting pieces is not less than four, and the adjusting pieces are distributed below the perforated round plate 403 at equal intervals;

the adjusting piece comprises an orifice plate 404, a vertical rod 405, a roller 406 and a spring 407;

the orifice plate 404 is installed in the recess 17, the montant 405 passes the hole on the orifice plate 404, the gyro wheel 406 is installed on the montant 405, the spring 407 cover is on the montant 405, the spring 407 sets up between orifice plate 404 and gyro wheel 406, drive plectane 403 and move down, press on the montant 405 of four corners, make the montant 405 of four corners simultaneously move down in corresponding orifice plate 404, then montant 405 drive corresponding gyro wheel 406 simultaneously move down, the spring 407 that corresponds stretches at this moment, then the gyro wheel 406 of four corners stretches out recess 17 simultaneously, then switch board 1 can be transported through the gyro wheel 406 removal of four corners, when the square of switch board 1 is needed, the thread bush 402 moves up on threaded rod 401, make foraminiferous plectane 403 move up, then through the restoring force of spring 407, make gyro wheel 406 withdraw in the recess 17, then base 6 makes switch board 1 stably support subaerial.

The round hole 8 has been seted up on the switch board 1, install the fan 9 in the round hole 8, the work of fan 9 connecing the electricity, the fan 9 passes through the mounting and installs in the round hole 8, the quantity of mounting is not less than four, the mounting equidistance distributes on the fan 9, the mounting includes otic placode 10 and bolt 11, otic placode 10 installs on the lateral wall of fan 9, the mounting hole has been seted up on the otic placode 10, the screw hole has been seted up on the switch board 1, the mounting hole is in same vertical line with the screw hole, bolt 11 cup joints at threaded hole through the mounting hole, regular fan 9 bloies in to the switch board 1, then wind is discharged from louvre 7, make the interior electrical apparatus line of switch board 1 cool down, prevent that the temperature is too high.

When the control cabinet with the leakage monitoring function is used, the internal lead wires of the control cabinet 1 respectively penetrate through the residual current transformer 16 on the leakage protection device 12, when the current parameters of the control cabinet 1 change, the internal signal receiving module of the central processing unit receives detection signals of the residual current transformer 16 on the current state of the circuit, the setting current of the protection action of the residual current transformer 16 can be from an mA level to an A level, the sensitivity is very high, thus the subtle change of the leakage current in an electric circuit can be detected, the residual current signals of the monitored circuit are used for extracting, the leakage current of a ground system can be continuously detected, the primary current with larger value can be converted into secondary current with smaller value through a certain transformation ratio, the secondary current with smaller value can be used for protection and measurement, and the purposes of monitoring the electric quantity of the three-phase system can be simultaneously realized.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Control cabinet with electric leakage monitoring function, including switch board (1), its characterized in that: the control cabinet (1) is hinged with a cabinet door (2) through a hinge, a central processing unit is mounted on the inner side of the cabinet door (2), a display screen (14) is embedded in the cabinet door (2), an audible-visual annunciator (15) is electrically connected to the display screen (14), a leakage protection device (12) is mounted in the control cabinet (1), two residual current transformers (16) are mounted on the leakage protection device (12), the display screen (14) is electrically connected to a signal output end of the central processing unit through an internal lead, the signal output end of the residual current transformers (16) is connected to a signal input end of the central processing unit through an internal lead, a base (6) is mounted below the control cabinet (1), and a grounding protection conductor (13) is mounted on the base (6).

2. The control cabinet with an electric leakage monitoring function according to claim 1, wherein: a groove (17) is formed in the base (6), an adjusting device (4) is arranged in the groove (17), and the adjusting device (4) comprises a threaded rod (401), a threaded sleeve (402), a perforated round plate (403) and an adjusting piece;

the threaded rod (401) is arranged in the groove (17), the threaded sleeve (402) is sleeved on the threaded rod (401), the perforated round plate (403) is arranged on the threaded sleeve (402), the adjusting pieces are arranged on the perforated round plate (403), the number of the adjusting pieces is not less than four, and the adjusting pieces are equidistantly distributed below the perforated round plate (403);

the adjusting piece comprises an orifice plate (404), a vertical rod (405), a roller (406) and a spring (407);

the pore plate (404) is arranged in the groove (17), the vertical rod (405) penetrates through a hole in the pore plate (404), the roller (406) is arranged on the vertical rod (405), the spring (407) is sleeved on the vertical rod (405), and the spring (407) is arranged between the pore plate (404) and the roller (406).

3. The control cabinet with an electric leakage monitoring function according to claim 1, wherein: a round hole (8) is formed in the control cabinet (1), and a fan (9) is arranged in the round hole (8).

4. A control cabinet with leakage monitoring function according to claim 3, characterized in that: the fan (9) is installed in round hole (8) through the mounting, the quantity of mounting is not less than four, the mounting equidistance distributes on fan (9), the mounting includes otic placode (10) and bolt (11), otic placode (10) are installed on the lateral wall of fan (9), the mounting hole has been seted up on otic placode (10), set up threaded hole on switch board (1), the mounting hole is in same vertical line with the screw hole, bolt (11) pass the mounting hole and cup joint at threaded hole.

5. The control cabinet with an electric leakage monitoring function according to claim 1, wherein: and a heat dissipation hole (7) is arranged on the side wall of the control cabinet (1).

6. The control cabinet with an electric leakage monitoring function according to claim 1, wherein: the cabinet door (2) is provided with a switch (3), and the cabinet door (2) is provided with a warning board (5).