CN220341728U - Integrated cubical switchboard of protection against electric shock - Google Patents

Abstract

The utility model belongs to the field of switch cabinets, in particular to an integrated switch cabinet capable of preventing electric shock, which comprises a switch cabinet, an electric shock protection device and a dust isolation mechanism; the electric shock protection device is provided with a first fixing plate with the number of two, one side of the first fixing plate penetrates through and is fixedly connected with a fixing shaft, the top of the fixing shaft is fixedly connected with cylinders with the number of three, and one side of each cylinder is movably sleeved with an insulating push rod; through mechanical movement's mode, keep apart personnel and cubical switchboard, the cylinder promotion insulating push rod forward motion that this moment, the preceding impeller block of insulating push rod will promote the plug-in strip when moving moves, and the messenger that the plug-in strip removed is the outside activity of axial with the junction of connecting axle, and when the plug-in strip activity to a scope, the plug-in strip top will separate with the connection of gate activity, cuts off the electric current, has realized the function of long-range switching on and off, has solved the problem that has probability by the electric current contact harm personal safety, has improved holistic security.

Description

Integrated cubical switchboard of protection against electric shock

Technical Field

The utility model relates to the field of switch cabinets, in particular to an integrated switch cabinet capable of preventing electric shock.

Background

The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of generating, transmitting, distributing and converting electric energy of the electric power system. The components in the switch cabinet mainly comprise a breaker, a disconnecting switch, a load switch, an operating mechanism, a transformer, various protection devices and the like. The switch cabinets are classified into a movable switch cabinet and a fixed switch cabinet according to the installation mode of the circuit breaker; or according to the different cabinet structures, the switch cabinet can be divided into an open switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; according to different voltage levels, the high-voltage switch cabinet, the medium-voltage switch cabinet, the low-voltage switch cabinet and the like can be further divided. The method is mainly suitable for various different occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industry textile, factories and mining enterprises, residential communities, high-rise buildings and the like.

Chinese patent No. CN202022704228.2 discloses an integrated cubical switchboard of protection against electric shock, which comprises a cabinet body, the internal fixedly connected with baffle of cabinet, the louvre has all been seted up to the both sides of the cabinet body, the card is equipped with the dust guard in the louvre, equal fixedly connected with baffle on the top inner wall and the bottom inner wall of louvre, the dust guard contacts with one side of baffle, the equal fixedly connected with extension board in one side bottom that two dust guards are close to each other, the below of baffle is equipped with the fan, the bottom fixedly connected with two long boards of fan, the equal fixedly connected with short board in bottom both sides of fan.

It can be seen from the above that when the dust-proof plate needs to be cleaned to overhaul the fan, the cabinet door is opened, then the implementation plate is pushed, the implementation plate drives the square plate to move, the square plate drives the stabilizing plate to move, the stabilizing plate stretches the spring, the implementation plate drives the side plate to move, the side plate drives the clamping plate to move, the clamping plate moves out of the clamping groove, and the limit to the long plate is relieved.

However, this case has the following disadvantages: firstly, when a person needs to perform power distribution or power transformation work during work, a knife switch (27) needs to be switched on or switched off to cut off a power supply for work, if the operation is improper, the person is possibly endangered by current contact because the five-prevention principle is not complied with by negligence;

secondly, because of carrying high current, the inside electric connection component can be under the influence of electric current the temperature rise, be unfavorable for work in the heavy environment of moisture simultaneously, in order to increase the life, generally need dispel the heat dehumidification, this just can't guarantee holistic leakproofness, outwards extract inside air through the fan, make organism internal air exchange with outside air, the air gets into by the filter screen, contain debris such as dust in the air, when adsorbing on the internal component, adsorb too much can lead to the organism trouble.

Therefore, an integrated switch cabinet capable of preventing electric shock is provided for the problems.

Disclosure of Invention

In order to make up the defects of the prior art, the problems that the safety of a person is damaged by current contact and the body is damaged due to the fact that excessive dust is adsorbed are solved, and the utility model provides an integrated switch cabinet capable of preventing electric shock.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to an integrated switch cabinet capable of preventing electric shock, which comprises a switch cabinet, an electric shock protection device and a dust isolation mechanism; the electric shock protection device is provided with a first fixing plate with the number of two, one side of the first fixing plate penetrates through and is fixedly connected with a fixing shaft, the top of the fixing shaft is fixedly connected with a cylinder with the number of three, one side of the cylinder is movably sleeved with an insulating push rod respectively, the other end of the insulating push rod is fixedly connected with a pushing block, one side of the pushing block is movably sleeved with a knife blade, the top of the knife blade is movably connected with a gate, and the bottom of the knife blade is movably sleeved with a connecting shaft.

Preferably, the dust isolation mechanism is provided with anode plates with the number of two, one side of the anode plates is fixedly connected with a switch cabinet, one side of the switch cabinet is fixedly connected with a cathode plate, one side of the switch cabinet is fixedly connected with an air inlet filter screen, one side of the switch cabinet is fixedly connected with an exhaust fan, an ash collecting hopper is placed at the bottom of the cathode plate, and one side of the ash collecting hopper is movably connected with the switch cabinet.

Preferably, the inside of the switch cabinet is provided with three circuit breakers, and the bottoms of the circuit breakers are respectively and fixedly connected with an electric connection copper plate.

Preferably, the bottom of the electric connection copper plate is fixedly connected with a current transformer, and the bottom of the current transformer is fixedly connected with the electric connection copper plate.

Preferably, a first insulator is fixedly connected to one side of the gate, a second insulator is fixedly connected to one side of the connecting shaft, an electric connection copper plate is fixedly connected to the top of the first insulator, and an electric connection copper plate is fixedly connected to the bottom of the second insulator.

Preferably, a second fixing plate is fixedly connected to one side of the first insulator, a third fixing plate is fixedly connected to one side of the second insulator, and a first fixing plate is fixedly connected to one side of the front face of the second fixing plate.

Preferably, a control main board is fixedly connected to one side of the switch cabinet, three control lines are fixedly sleeved on one side of the control main board, and an air cylinder is fixedly connected to one side of the control lines

The utility model has the advantages that:

1. according to the utility model, through the structural design of the electric shock protection device, personnel and a switch cabinet are isolated in a mechanical movement mode, at the moment, the air cylinder pushes the insulation push rod to move forwards, the push block in front of the insulation push rod pushes the switch blade to move during movement, the connection part of the connecting shaft is used as the axial external movement for the movement of the switch blade, when the switch blade moves to a certain range, the movable connection between the top of the switch blade and the switch port is separated, the current is cut off, the remote switch-on and switch-off function is realized, the problem that the personal safety is damaged by the current contact probability is solved, and the overall safety is improved;

2. according to the utility model, through the structural design of the dust isolation mechanism, a high-voltage electric field is generated between the anode plate and the cathode plate after the anode plate and the cathode plate are electrified, when air enters the air inlet filter screen, the air enters the high-voltage electric field, and corona discharge is generated through the cathode plate, so that the air is ionized, at the moment, negatively charged air ions move towards the cathode plate under the action of the electric field force and collide with dust particles in the moving process, so that the dust is negatively charged, and the charged dust moves towards the anode plate under the action of the electric field force, thereby realizing the function of isolating the dust from entering the machine body, solving the problem that the machine body is broken down due to the fact that too much dust is adsorbed, prolonging the service life of internal elements and reducing the fault rate.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is an exploded view of the overall structure of the present utility model;

FIG. 3 is a schematic diagram of the shock protection device according to the present utility model;

FIG. 4 is an enlarged view of the structure of FIG. 3A according to the present utility model;

FIG. 5 is a schematic view of a dust isolation mechanism according to the present utility model;

fig. 6 is a schematic diagram of the switch cabinet of the present utility model.

In the figure: 1. a switch cabinet; 2. an electric shock protection device; 3. a dust isolation mechanism; 11. a circuit breaker; 12. an electric copper plate; 13. a current transformer; 14. a first insulator; 15. a second insulator; 20. a pushing block; 21. a first fixing plate; 22. a fixed shaft; 23. a control main board; 24. a second fixing plate; 25. a cylinder; 26. an insulating push rod; 27. a knife switch; 28. a gate; 29. a connecting shaft; 30. a third fixing plate; 31. an anode plate; 32. a cathode plate; 33. an air inlet filter screen; 34. an ash collecting hopper; 35. an exhaust fan; 201. and a control line.

Description of the embodiments

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. 1-6, an integrated switch cabinet capable of preventing electric shock comprises a switch cabinet 1, an electric shock protection device 2 and a dust isolation mechanism 3; the electric shock protection device 2 is provided with a first fixing plate 21 with the number of two, one side of the first fixing plate 21 penetrates through and is fixedly connected with a fixing shaft 22, the top of the fixing shaft 22 is fixedly connected with a cylinder 25 with the number of three, one side of the cylinder 25 is respectively and movably sleeved with an insulating push rod 26, the other end of the insulating push rod 26 is fixedly connected with a pushing block 20, one side of the pushing block 20 is movably sleeved with a knife 27, the top of the knife 27 is movably connected with a gate 28, and the bottom of the knife 27 is movably sleeved with a connecting shaft 29;

during operation, personnel and the switch cabinet 1 are isolated in a mechanical movement mode, at the moment, the air cylinder 25 pushes the insulation push rod 26 to move forwards, the push block 20 in front of the insulation push rod 26 pushes the knife switch 27 to move during movement, the connection part of the connecting shaft 29 is made to move outwards in the axial direction by the movement of the knife switch 27, and when the knife switch 27 moves to a certain range, the movable connection between the top of the knife switch 27 and the gate 28 is separated, so that current is cut off.

Further, the dust isolation mechanism 3 is provided with anode plates 31 with the number of two, one side of each anode plate 31 is fixedly connected with a switch cabinet 1, one side of each switch cabinet 1 is fixedly connected with a cathode plate 32, one side of each switch cabinet 1 is fixedly connected with an air inlet filter screen 33, one side of each switch cabinet 1 is fixedly connected with an exhaust fan 35, an ash collecting hopper 34 is arranged at the bottom of each cathode plate 32, and one side of each ash collecting hopper 34 is movably connected with the switch cabinet 1;

when the air inlet filter screen 33 is powered on, air enters the high-voltage electric field, corona discharge occurs through the cathode plate 32, so that air is ionized, negatively charged air ions move towards the cathode plate 32 under the action of the electric field force, collide with dust particles in the moving process, so that the dust is negatively charged, and the charged dust moves towards the anode plate 31 under the action of the electric field force.

Further, three circuit breakers 11 are arranged in the switch cabinet 1, and the bottoms of the circuit breakers 11 are fixedly connected with a power-on copper plate 12 respectively;

in operation, the circuit breaker 11 can be used to distribute electrical energy, not frequently start the asynchronous motor, protect the power supply line and the motor, and automatically cut off the circuit when serious overload or short circuit and under-voltage faults occur, and the functions of the circuit breaker are equivalent to the combination of a fuse type switch, an over-under-heating relay and the like. And the parts are not required to be changed after breaking the fault current.

Further, the bottom of the electric connection copper plate 12 is fixedly connected with a current transformer 13, and the bottom of the current transformer 13 is fixedly connected with the electric connection copper plate 12;

when the current transformer 13 works, the whole current of the circuit always flows through the current transformer 13, the number of turns of the secondary side winding is relatively large, the secondary side winding is connected in series in the measuring instrument and the protection loop, and when the current transformer 13 works, the secondary side loop is always closed, so that the impedance of the series coil of the measuring instrument and the protection loop is very small, the working state of the current transformer 13 is close to a short circuit, the current transformer 13 converts the primary side large current into the secondary side small current for measurement, and the secondary side cannot be opened.

Further, a first insulator 14 is fixedly connected to one side of the gate 28, a second insulator 15 is fixedly connected to one side of the connecting shaft 29, a copper plate 12 is fixedly connected to the top of the first insulator 14, and a copper plate 12 is fixedly connected to the bottom of the second insulator 15;

in operation, the first insulator 14 and the second insulator 15 are devices that are mounted between conductors of different electric potentials or between conductors and a ground member, and are capable of withstanding voltage and mechanical stress.

Further, a second fixing plate 24 is fixedly connected to one side of the first insulator 14, a third fixing plate 30 is fixedly connected to one side of the second insulator 15, and a first fixing plate 21 is fixedly connected to one side of the front surface of the second fixing plate 24;

in operation, the second fixing plate 24 and the third fixing plate 30 are fixed to effectively insulate the whole body, so that the threat of electric leakage is prevented.

Further, a control main board 23 is fixedly connected to one side of the switch cabinet 1, three control lines 201 are fixedly sleeved on one side of the control main board 23, and an air cylinder 25 is fixedly connected to one side of the control lines 201;

during operation, the control main board 23 is used for controlling, and a remote signal can be received during operation of the control main board 23, so that the control line 201 is used for controlling the air cylinder 25, and remote opening and closing are performed.

Working principle: in the first embodiment, when a person needs to perform work, the air cylinder 25 is driven to isolate the person from the switch cabinet 1 in a mechanical movement mode, the air cylinder 25 at this time pushes the insulation push rod 26 to move forward, the push block 20 in front of the insulation push rod 26 pushes the knife 27 to move during movement, the connection part of the knife 27, which is moved by the connecting shaft 29, is moved axially outwards, when the knife 27 moves to a certain range, the movable connection between the top of the knife 27 and the gate 28 is separated, current is cut off, overhaul equipment or overhaul lower-level circuit is performed, the air cylinder 25 is driven to close after the work is completed, test operation is performed, when the person is not present, remote control can be performed through the control main board 23, signals are transmitted to the control main board 23 through the control line 201, and the signals are transmitted to the air cylinder 25 to perform work.

In the second embodiment, the air in the machine body is extracted outwards through the exhaust fan 35, so that the air in the machine body and the external air are exchanged, the air enters through the air inlet filter screen 33, sundries such as dust are contained in the air, when the air is adsorbed on the internal elements, the adsorption is excessive, the machine body is failed, the anode plate 31 and the cathode plate 32 are electrified simultaneously, a high-voltage electric field is generated between the anode plate 31 and the cathode plate 32 after the anode plate 31 and the cathode plate 32 are electrified, when the air enters into the air inlet filter screen 33, the air enters into the high-voltage electric field, corona discharge is generated through the cathode plate 32, so that the air is ionized, at the moment, negatively charged air ions move towards the cathode plate 32 under the action of the electric field force, collide with dust particles mutually in the moving process, so that the dust is charged negatively, moves towards the anode plate 31 under the action of the electric field force, the charged dust is discharged from the dust after reaching the anode plate 31, the dust is adsorbed on the surface of the anode plate 31, and when a certain weight is accumulated, the dust falls into the dust collecting hopper 34 for collection, and the dust collecting hopper 34 can be cleaned.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (7)

1. An integrated cubical switchboard of protection against electric shock, its characterized in that: comprises a switch cabinet (1), an electric shock protection device (2) and a dust isolation mechanism (3); the electric shock protection device is characterized in that the first fixing plates (21) with the number of two are arranged on the electric shock protection device (2), one sides of the first fixing plates (21) penetrate through and are fixedly connected with the fixing shafts (22), the tops of the fixing shafts (22) are fixedly connected with cylinders (25) with the number of three, one sides of the cylinders (25) are respectively and movably sleeved with the insulating push rods (26), the other ends of the insulating push rods (26) are fixedly connected with the pushing blocks (20), one sides of the pushing blocks (20) are movably sleeved with the blades (27), the tops of the blades (27) are movably connected with the gates (28), and the bottoms of the blades (27) are movably sleeved with the connecting shafts (29).

2. An integrated switchgear for protection against electric shock according to claim 1, characterized in that: the dust isolation mechanism (3) is provided with anode plates (31) with the number of two, one side of the anode plates (31) is fixedly connected with a switch cabinet (1), one side of the switch cabinet (1) is fixedly connected with a cathode plate (32), one side of the switch cabinet (1) is fixedly connected with an air inlet filter screen (33), one side of the switch cabinet (1) is fixedly connected with an exhaust fan (35), an ash collecting hopper (34) is arranged at the bottom of the cathode plate (32), and one side of the ash collecting hopper (34) is movably connected with the switch cabinet (1).

3. An integrated switchgear for protection against electric shock according to claim 2, characterized in that: the three-in-three circuit breakers (11) are arranged in the switch cabinet (1), and the bottoms of the circuit breakers (11) are respectively and fixedly connected with an electricity connection copper plate (12).

4. An integrated switchgear as claimed in claim 3, wherein: the bottom of the electric connection copper plate (12) is fixedly connected with a current transformer (13), and the bottom of the current transformer (13) is fixedly connected with the electric connection copper plate (12).

5. An integrated switchgear for protection against electric shock according to claim 4, characterized in that: one side fixedly connected with first insulator (14) of gate (28), one side fixedly connected with second insulator (15) of connecting axle (29), the top fixedly connected with of first insulator (14) meets electric copper plate (12), the bottom fixedly connected with of second insulator (15) meets electric copper plate (12).

6. An integrated switchgear for protection against electric shock according to claim 5, characterized in that: one side of first insulator (14) fixedly connected with second fixed plate (24), one side of second insulator (15) fixedly connected with third fixed plate (30), the front one side fixedly connected with first fixed plate (21) of second fixed plate (24).

7. An integrated switchgear for protection against electric shock according to claim 1, characterized in that: one side fixedly connected with control mainboard (23) of cubical switchboard (1), one side fixedly cup joints control line (201) that are three in quantity of control mainboard (23), one side fixedly connected with cylinder (25) of control line (201).