CN117477385A - Power distribution cabinet electric leakage detection device - Google Patents
Power distribution cabinet electric leakage detection device Download PDFInfo
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- CN117477385A CN117477385A CN202311812082.5A CN202311812082A CN117477385A CN 117477385 A CN117477385 A CN 117477385A CN 202311812082 A CN202311812082 A CN 202311812082A CN 117477385 A CN117477385 A CN 117477385A
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- power distribution
- cabinet
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
- H02B1/052—Mounting on rails
- H02B1/0523—Mounting on rails locked into position by a sliding member
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/38—Hinged covers or doors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Patch Boards (AREA)
Abstract
The invention belongs to the technical field of electric leakage detection, in particular to a power distribution cabinet electric leakage detection device, which comprises a power distribution cabinet main body, a locking mechanism, a control mechanism and a detection module, wherein an electric leakage protector is arranged in the power distribution cabinet main body; through the cooperation of the structure, the time for protecting the machine equipment in the workshop can be reserved during electric leakage, so that the risk of equipment damage caused by electric leakage tripping is reduced.
Description
Technical Field
The invention belongs to the technical field of electric leakage detection, and particularly relates to an electric leakage detection device of a power distribution cabinet.
Background
The power distribution cabinet is a generic name of a motor control center and is used for occasions with scattered load and fewer loops. The motor control center is used for occasions with concentrated loads and more loops, and the power distribution cabinet generally has the functions of overhead incoming and outgoing lines, cable incoming and outgoing lines, bus connection and the like. The cabinet body is generally formed by welding cold-rolled steel plates or angle steel, and is also assembled by adopting aluminum-zinc plated steel plates or galvanized steel plates. For the requirement of non-magnetic conductivity, the power distribution cabinet can also be manufactured by using a stainless steel plate or an aluminum plate, and in the use process, the power distribution cabinet is frequently leaked due to ageing and abrasion of a circuit.
In the prior art, a leakage protector is used as a power distribution cabinet and protection equipment for electric leakage of internal electric appliances, and when the leakage current is higher than the reaction current of the leakage protector, the leakage protector trips rapidly to cut off the power supply;
meanwhile, as disclosed in China patent with the publication number of CN219874606U, a leakage detection device for a power distribution cabinet belongs to the technical field of leakage detection for the power distribution cabinet, and comprises a power distribution cabinet, wherein a switch door is rotatably connected and installed on the side edge of the power distribution cabinet, a leakage detection box is installed on the other side of the power distribution cabinet and fixedly connected with the power distribution cabinet through a leakage detection box fixing mechanism, a door plate portable fixing mechanism is installed on one side of the leakage detection box, a buzzer alarm is installed on the other side of the leakage detection box, and an LED lamp is installed below the buzzer alarm on the other side of the leakage detection box;
the utility model provides a chinese patent with publication number CN207149925U, a switch board electric leakage self-detecting device, including the switch board, the inside of switch board is equipped with the distribution equipment, the outside of distribution equipment is equipped with earth leakage protector, the inside upper surface of switch board is equipped with the PLC controller, the input of PLC controller is connected with the output of external power supply electricity, the input of earth leakage protector is connected with the output electricity of PLC controller, the inside side surface of switch board is equipped with earth leakage detector, the input of PLC controller is connected to earth leakage detector's output electricity, the outside upper surface of switch board is equipped with alarm device;
however, the above-mentioned techniques often have the following drawbacks: in the process of leakage protection, the leakage protector is powered off to serve as a leakage protection measure, and although a protection reaction can be quickly made, in the working state of machine equipment in a construction workshop, fluctuation of voltage transformation exists in the sudden power-off process, so that insulation breakdown of some elements is caused, and damage to other running or electrified electric appliances is caused by transient voltage fluctuation, so that a large maintenance burden is caused.
Therefore, the invention provides a leakage detection device for a power distribution cabinet.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a power distribution cabinet electric leakage detection device which comprises a power distribution cabinet main body, a locking mechanism, a control mechanism and a detection module, wherein an electric leakage protector is arranged in the power distribution cabinet main body.
The switch board main part includes the cabinet body and rotates the cabinet door of installing in cabinet body one side, and wherein earth leakage protector is the product that can purchase in the market, sets up on the internal bus of electrical apparatus of cabinet, not shown in the figure, and the cabinet door passes through hinge and cabinet body coupling, and cabinet door and cabinet body pass through the wire connection simultaneously.
The opening and closing of the cabinet door is controlled by a locking mechanism.
The control mechanism comprises a distribution plate, a power-off binding post and a protection binding post which are rotatably arranged on the inner side of the cabinet door, wherein the distribution plate is electrically connected with the cabinet door, and the power-off binding post is electrically connected with a ground wire.
The detection module comprises a control resistor and display lamp beads, the display lamp beads are common neon tubes used for test pencil, the electric power input end of the control resistor is electrically connected with the protection wiring terminal, the electric power output end of the control resistor is electrically connected with the electric power input end of the display lamp beads, the control resistor and the display lamp beads are connected in series, after the distribution plate is lapped with the protection wiring terminal, the input end of the control resistor is electrically connected with the distribution plate, the output end of the display lamp beads is electrically connected with the ground wire, and at the moment, the cabinet body and the cabinet door are connected with the ground wire through the control resistor and the display lamp beads.
The locking mechanism comprises a mounting block fixedly mounted on the outer side of the cabinet door, a control handle, a limiting frame and a lock tongue, wherein the control handle, the limiting frame and the lock tongue are slidably mounted in the mounting block, the lock tongue is elastically arranged on the inner side of the cabinet door, the control handle is slid to the outer wall of the mounting block through rotation control of the control handle by sliding of the lock tongue, the control handle is rotated to control the lock tongue to rotate, a groove for inserting the lock tongue is formed in the inner wall of the cabinet body and the outer wall of the limiting frame by fixedly mounting the limiting frame, and when the cabinet door needs to be closed, the sliding lock tongue is inserted with the limiting frame to realize the fixation of the cabinet door.
The inboard fixed mounting of cabinet door has detection box and mounting box, and control resistance and the equal fixed mounting of display lamp pearl are in the inner wall of detection box, and the luminous end of display lamp pearl extends to the outside of cabinet door to observe the luminous condition of display lamp pearl in the cabinet door outside.
The power-off binding post and the protection binding post are fixedly arranged on the inner wall of the mounting box, and the mounting box and the detection box are made of insulating plastic materials.
The inner wall fixed mounting of spacing frame has a holding section of thick bamboo, the inner wall fixed mounting of holding section of thick bamboo has an electro-magnet, the electro-magnet passes through the axial end connection of screw and holding section of thick bamboo, the inner wall elastic mounting of holding section of thick bamboo has a magnetic force board, the magnetic force board is common magnet, the outer wall of magnetic force board is provided with the spring, the one end and the inner wall fixed connection of holding section of thick bamboo of spring, the lateral wall fixed mounting of magnetic force board has the spacer pin that is used for pegging graft with the spring bolt, the through-hole that supplies the spacer pin to peg graft is seted up at the outer wall of spring bolt, the inner wall fixed mounting of the cabinet body has the control module who is used for controlling the electro-magnet, control module comprises the PCB board, the singlechip and current sensor, the singlechip is constituteed and current sensor is all integrated on the PCB board, current sensor is used for real-time detection through the electric current that shows the lamp pearl.
The inner wall elastic mounting of mounting box has the connecting rod, the inner wall fixed mounting of mounting box has the support, connecting rod slidable mounting is in the directness, the lateral wall of support is provided with the spring, the other end of spring and the outer wall fixed connection of spring, the elasticity through the spring promotes the spring bolt and has the gliding trend to the mounting box outside in real time, the one end of connecting rod and the outer wall fixed connection of spring bolt, the other end fixed mounting of connecting rod has the drive plate, the slip drive plate passes through connecting rod control spring bolt slip, the control lever is installed in the inner wall rotation of mounting box, the outer wall fixed mounting of control lever has the control cam that is used for promoting the drive plate, the outer wall laminating in real time of going on of control cam and the outer wall of drive plate, rotate the control lever and promote the drive plate through the control cam, thereby control spring bolt shrink, until spring bolt and spacing frame separation are promoted to the reverse rotation control cam, the one end of control lever extends to the inner chamber of control lever, and with control handle sliding connection, drive the control lever through rotating the control lever, realize the slip regulation of spring bolt, distribution plate fixed mounting is at the outer wall of control lever.
The inner chamber bottom fixed mounting of the cabinet body has the guide rail, and the guide rail is U type structure, and the lateral wall slidable mounting of guide rail has the slider, and the lateral wall of slider is provided with the mounting bracket, and the slider control mounting bracket slides.
The lateral wall of guide rail is provided with the traction plate, and the traction plate slides in step with the mounting bracket, and the outer wall fixed mounting of traction plate has the film, and the film is common insulating rubber pad, has offered in the inside of guide rail and has supplied the gliding storage tank of film, and the sliding mounting bracket passes through the traction plate control film and slides along the storage tank, and the up end fixed mounting of film has tramples the gasbag, tramples the gasbag and is the rubber gasbag that has elasticity.
Preferably, the cabinet body is internally fixedly provided with a control motor, the cabinet body is internally provided with a support, the control motor is fixedly arranged on the support, an output shaft of the control motor is fixedly provided with a control screw rod, the control screw rod is rotationally connected with the support through a bearing, the outer wall of the control screw rod is connected with a control console through threads, the control motor drives the control screw rod to rotate so as to drive the control console to slide, the control console is fixedly connected with the outer wall of the sliding block so as to control the installation frame and the negative film to slide through the sliding block, the control motor rotates through current control through the display lamp beads, and when current passes through the display lamp beads, the control motor is regulated to rotate through the singlechip, so that the negative film and the trampled air bags slide out of the cabinet body and are tiled on the ground, and the security of electric leakage overhaul is improved.
The inner wall fixed mounting of the cabinet body has the carriage, and the lateral wall of carriage rotates and installs the guide roll, and the guide roll extends to the inside of guide rail, and the lateral wall of every carriage is provided with two guide rolls, when the film slides along the guide rail in, laminating with the film through the radial outer wall of guide roll, reduces the gliding resistance of film.
The inner wall of the cabinet body is fixedly provided with a driving motor, the outer wall of the cabinet body is provided with a through hole for discharging the negative film and the trampling air bag, and the output shaft of the driving motor is fixedly provided with a control roller so as to facilitate the negative film discharge and contraction.
Preferably, the outer wall fixed mounting who bears the frame has the mounting box, and the outer wall fixed mounting of mounting box has the rotating electrical machines, and the lateral wall of mounting box rotates and installs the swivel mount, and the bottom surface of swivel mount and the outer wall fixed connection of traction plate, sliding mounting to the turn of guide rail, and swivel mount control traction plate rotates this moment, and the rotating electrical machines passes through worm gear cooperation control swivel mount and rotates.
Preferably, the inner wall of the mounting block is fixedly provided with an attraction ring, the inner wall of the control handle is fixedly provided with a control ring which is attracted with the attraction ring, the control ring and the attraction ring are two magnet rings which are attracted with each other, and the control handle is attracted by magnetic force, so that the control handle has a trend of contracting into the mounting block in real time.
The inner wall fixed mounting of installation piece has the guide cylinder, and the inner wall slidable mounting of guide cylinder has the piston, adjusts guide cylinder inner chamber atmospheric pressure, and the control piston slides, and the axial end fixed mounting of piston has the movable rod that is used for promoting the control handle, and the sliding piston passes through the inner chamber that the movable rod released the control handle installation piece to the cabinet door is opened to the convenience.
Preferably, the inboard fixed mounting of cabinet door has the bin, and the inner chamber of bin passes through the inner chamber intercommunication of pipe and guide cylinder, and the outer wall of bin is provided with the barometer, and the barometer is used for detecting the atmospheric pressure of bin inner chamber, and the bin outer wall is provided with the inflating valve, can aerify the bin inner chamber through the inflating valve for later stage supplements gas, steps on the inner chamber of gasbag and passes through the rubber tube intercommunication with the inner chamber of bin.
Preferably, the inner wall fixed mounting that tramples the gasbag has elastic rubber strip, and elastic rubber strip is provided with a plurality ofly, and even distribution is trampling the inner chamber of gasbag, and after the maintenance, the staff leaves tramples the gasbag, and elastic rubber strip and tramples the recovery of gasbag to control movable rod shrink resets.
The beneficial effects of the invention are as follows:
1. according to the invention, the lock tongue and the limit frame are arranged, the opening and locking of the cabinet door are controlled, the control handle is additionally arranged, the lock tongue is controlled to slide through the rotation of the control handle, the control handle controls the distribution plate to rotate through the control rod, the distribution plate is rotated to be respectively overlapped with the protection binding post and the power-off binding post, the flowing direction of leakage current is controlled, the control resistor reduces the current transmitted to the ground wire to be smaller than the reaction current of the leakage protector, so that the leakage protector does not react, the lamp beads are displayed to emit light, when a worker finds that the lamp beads are displayed to emit light, the time for protecting machine equipment in a workshop can be reserved, so that the risk of equipment damage caused by leakage tripping is reduced, the control handle is rotated after leakage, when the cabinet door is opened, the leakage current directly enters the ground through the ground wire, the leakage protector is powered off, and electric shock of maintenance personnel is prevented.
2. According to the invention, the bottom plate and the trampling air bag are arranged, the working personnel and the ground are separated during maintenance, the guide cylinder is arranged at the same time, the movable rod which is controlled to slide by air pressure is arranged in the inner cavity of the guide cylinder, the working personnel stands on the trampling air bag during maintenance, the trampling air bag is extruded to compress air, the air pressure in the inner cavity of the guide cylinder is further improved, the piston slides to push the control handle to slide out of the inner cavity of the mounting block, the control handle is driven to slide through the air pressure change in the inner cavity of the trampling air bag, the control handle can be rotated to open the cabinet door after the working personnel stands on the trampling air bag, and the safety during maintenance is further improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the installation of the mounting box of the present invention;
FIG. 3 is a schematic view showing the internal structure of the mounting box of the present invention;
FIG. 4 is a schematic view of the installation of the connecting rod of the present invention;
FIG. 5 is a schematic view showing the internal structure of the accommodating cylinder in the present invention;
FIG. 6 is a schematic view of the structure of the guide rail of the present invention;
FIG. 7 is a schematic view of the installation of the traction plate of the present invention;
FIG. 8 is a schematic view of the structure of the mounting bracket of the present invention;
FIG. 9 is a schematic view showing the internal structure of the mounting box of the present invention;
FIG. 10 is a schematic view of the structure of the storage box of the present invention;
FIG. 11 is a schematic view of the installation of a control ring in accordance with the present invention;
fig. 12 is a schematic view showing the internal structure of the guide cylinder in the present invention.
In the figure: 1. a cabinet body; 2. a cabinet door; 3. treading the air bag; 4. a mounting block; 5. a control handle; 6. a mounting box; 61. a control lever; 62. a connecting rod; 63. a control cam; 64. a bolt; 65. protecting the binding post; 66. a distribution plate; 67. a power-off binding post; 68. a drive plate; 7. a detection box; 71. displaying the lamp beads; 8. a limit frame; 81. an accommodating cylinder; 82. a limiting pin; 83. a magnetic plate; 84. an electromagnet; 9. a control module; 10. a negative; 11. a console; 12. a control screw; 13. a guide roller; 14. a carrier; 15. controlling a motor; 16. a rotating frame; 17. a mounting box; 18. a traction plate; 19. a guide rail; 20. a slide block; 21. a mounting frame; 22. a rotating electric machine; 23. a control roller; 24. a driving motor; 25. a piston; 26. an elastic adhesive tape; 27. a storage box; 28. an air pressure gauge; 29. a guide cylinder; 30. a movable rod; 31. a control loop; 32. a suction ring.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Embodiment one: as shown in fig. 1 to 5, the leakage detection device for a power distribution cabinet according to the embodiment of the invention comprises a power distribution cabinet main body with a leakage protector, a locking mechanism, a control mechanism and a detection module.
The switch board main part includes cabinet body 1 and rotates cabinet door 2 of installing in cabinet body 1 one side, and wherein earth leakage protector is the product that can purchase in the market, sets up on the bus line of the internal electrical apparatus of cabinet 1, not shown in the figure, cabinet door 2 passes through the hinge and is connected with cabinet body 1, and cabinet door 2 and cabinet body 1 pass through the wire connection simultaneously.
Electric leakage is conducted on the cabinet body 1 and the cabinet door 2 through electric appliances in the cabinet body 1, at the moment, workers standing on the ground are in contact with the cabinet body 1 and the cabinet door 2 to form a closed loop, and current enters the ground through a human body, so that electric leakage and electric shock accidents occur.
The control mechanism comprises a distribution plate 66, a power-off binding post 67 and a protection binding post 65 which are rotatably arranged on the inner side of the cabinet door, the distribution plate 66 is electrically connected with the cabinet door 2, and the power-off binding post 67 is electrically connected with a ground wire.
When the cabinet body 1 and the cabinet door 2 are electrified, the rotary distribution plate 66 is in contact with the power-off binding post 67, at the moment, the cabinet body 1 and the cabinet door 2 are directly connected with a ground wire, the leakage protector detects leakage current, and tripping and power-off are performed.
The detection module comprises a control resistor and a display lamp bead 71, wherein the display lamp bead 71 is a common neon tube for a test pencil.
The power input end of the control resistor is electrically connected with the protection binding post 65, the power output end of the control resistor is electrically connected with the power input end of the display lamp bead 71, and the control resistor and the display lamp bead 71 are connected in series.
After the distributing plate 66 is lapped with the protective binding post 65, the input end of the control resistor is electrically connected with the distributing plate 66, the output end of the display lamp bead 71 is electrically connected with the ground wire, and at the moment, the cabinet body 1 and the cabinet door 2 are connected with the ground wire through the control resistor and the display lamp bead 71.
When the cabinet body 1 and the cabinet door 2 are electrified and the distribution plate 66 is overlapped with the protective binding post 65, the display lamp beads 71 emit light, so that an electric leakage alarm is given.
When the cabinet body 1 and the cabinet door 2 are not electrified and the distribution plate 66 is overlapped with the protection binding post 65, the potential difference at the two ends of the display lamp beads 71 is zero, so that no light is emitted, and the cabinet body 1 and the cabinet door 2 are not electrified.
When the workshop is constructed, various electric appliances in the workshop are connected with the electric appliances in the cabinet body 1, a common leakage protector is arranged in the cabinet body 1 to detect leakage, and when the leakage of the cabinet body 1 is transmitted to the ground through a ground wire, the leakage protector trips rapidly to cut off the power, so that the machine equipment in a working state in the workshop is easily damaged.
The distributing plate 66 is lapped with the protection binding post 65, if electric leakage leads to cabinet door 2 and cabinet body 1 electrified, and electric current is transmitted to the ground wire through control resistance and display lamp pearl 71 at this moment, because the setting of control resistance reduces the electric current that transmits to the ground wire and is less than the reaction current of earth leakage protector, leads to earth leakage protector unresponsiveness, and the display lamp pearl 71 is luminous simultaneously, when the staff found that display lamp pearl 71 is luminous, can leave the time of machine equipment in the protection workshop to reduce the risk of bringing equipment damage because of electric leakage tripping operation.
When the electric leakage fault in the cabinet body 1 is overhauled, the rotary distribution plate 66 is lapped with the power-off binding post 67, at the moment, the cabinet door 2 and the cabinet body 1 are directly connected with the ground wire, current directly passes through the ground wire to trigger the tripping operation of the electric leakage protector, and after electric leakage, the cabinet door 2 is opened and simultaneously powered off, so that the overhauling safety is improved.
The switch of cabinet door 2 passes through locking mechanical system control, locking mechanical system includes fixed mounting at the installation piece 4 in the cabinet door 2 outside, slidable mounting is in the control handle 5 in installation piece 4, spacing frame 8 and spring bolt 64, spring bolt 64 elasticity sets up the inboard at cabinet door 2, and the slip of spring bolt 64 passes through the rotation control of control handle 5, slide control handle 5 to the outer wall of installation piece 4, rotate control handle 5, control spring bolt 64 rotates, spacing frame 8 fixed mounting has offered the recess that supplies spring bolt 64 grafting at the inner wall of cabinet body 1 and the outer wall of spacing frame 8, when needs closed cabinet door 2, slip spring bolt 64 is pegged graft with spacing frame 8, realize cabinet door 2's fixed.
The inboard fixed mounting of cabinet door 2 has detection box 7 and mounting box 6, and control resistance and the equal fixed mounting of display lamp pearl 71 are at the inner wall of detection box 7, and the luminous end of display lamp pearl 71 extends to the outside of cabinet door 2 to the luminous condition of display lamp pearl 71 is observed in cabinet door 2 outside.
The outage terminal 67 and the protection terminal 65 are fixedly installed on the inner wall of the installation box 6, and the installation box 6 and the detection box 7 are made of insulating plastic materials.
The inner wall fixed mounting of spacing frame 8 has a holding section of thick bamboo 81, the inner wall fixed mounting of holding section of thick bamboo 81 has electro-magnet 84, electro-magnet 84 passes through the screw and is connected with the axial end of holding section of thick bamboo 81, the inner wall elastic mounting of holding section of thick bamboo 81 has magnetic plate 83, magnetic plate 83 is common magnet, the outer wall of magnetic plate 83 is provided with the spring, the one end of spring and the inner wall fixed connection of holding section of thick bamboo 81, the lateral wall fixed mounting of magnetic plate 83 has the spacer pin 82 that is used for pegging graft with spring bolt 64, the through-hole that supplies spacer pin 82 to peg graft is seted up at the outer wall of spring bolt 64, the elasticity of spring promotes magnetic plate 83 and makes spacer pin 82 have the trend of keeping away from spring bolt 64 in real time.
The inner wall fixed mounting of cabinet body 1 has the control module 9 that is used for controlling electro-magnet 84, and control module 9 comprises PCB board, singlechip and current sensor, and the singlechip is constituteed and current sensor is all integrated on the PCB board, and current sensor is used for real-time detection to pass through the electric current of display lamp pearl 71, when having the electric current to pass through display lamp pearl 71, and current sensor passes through singlechip control electro-magnet 84 circular telegram, produces the magnetic field.
When the electric leakage occurs, the current sensor detects the current passing through the display lamp beads 71, at the moment, the electromagnet 84 is electrified to generate magnetic force which is mutually repulsed with the magnetic plate 83, and the limiting pin 82 is pushed to be inserted with the lock tongue 64, so that the lock tongue 64 is fixed, the cabinet door 2 is locked when the electric leakage occurs, the cabinet door 2 is prevented from being opened when the electric leakage occurs, and the use safety is improved.
The independent power supply for supplying electric energy to the electromagnet 84 and the PCB is required to be arranged in the cabinet body 1, the common lithium battery is selected and used in the embodiment, meanwhile, in order to conveniently open the cabinet door 2 during electric leakage, the Bluetooth signal receiving module is integrated in the PCB, a worker is used for sending Bluetooth signals with the Bluetooth signal generating module which is matched with the Bluetooth signal receiving module during maintenance, the Bluetooth signal is received by the Bluetooth signal receiving module, the electromagnet 84 is controlled to be powered off after receiving, the limiting pin 82 is pushed to be separated from the lock tongue 64 through spring force, so that the cabinet door 2 is opened during maintenance, the Bluetooth signal generating module is kept by a professional maintenance worker, and the cabinet door 2 is opened by a non-professional person during electric leakage is prevented.
The inner wall elastic mounting of mounting box 6 has connecting rod 62, the inner wall fixed mounting of mounting box 6 has the support, connecting rod 62 slidable mounting is in the directness, the lateral wall of support is provided with the spring, the other end and the outer wall fixed connection of spring tongue 64, the spring force through the spring promotes spring tongue 64 and has the trend to the outside gliding of mounting box 6 in real time, the one end of connecting rod 62 and the outer wall fixed connection of spring tongue 64, the other end fixed mounting of connecting rod 62 has drive plate 68, slip drive plate 68 passes through connecting rod 62 control spring tongue 64 slip, the inner wall rotation of mounting box 6 is installed control rod 61, the outer wall fixed mounting of control rod 61 has the control cam 63 that is used for promoting drive plate 68, the going on outer wall of control cam 63 is laminated with the outer wall of drive plate 68 in real time, rotate control rod 61 through control cam 63 promotion drive plate 68, thereby control spring tongue 64 shrink, until spring tongue 64 and spacing frame 8 separation, reverse rotation control cam 63 promotes spring tongue 64 and spacing frame 8 grafting through the spring force of spring, the one end of control rod 61 extends to the inner chamber of control handle 5, and sliding connection with control handle 5, drive control rod 61 rotation through rotation control handle 5, realize the slip regulation of spring tongue 64.
The distributing plate 66 is fixedly arranged on the outer wall of the control rod 61, when the control handle 5 controls the lock tongue 64 to slide and the limiting frame 8 to be inserted, the distributing plate 66 is overlapped with the protection binding post 65, the cabinet door 2 is closed, and when the control handle 5 controls the lock tongue 64 to slide and the limiting frame 8 to be separated, the distributing plate 66 is overlapped with the power-off binding post 67, so that the cabinet door 2 is opened.
Under normal condition, cabinet door 2 is closed, if cabinet body 1 and cabinet door 2 electrified this moment, the electric current transmits to the ground wire through control resistance and display lamp pearl 71, can leave the time of machine equipment in the protection workshop to reduce the risk of bringing the equipment damage because of electric leakage tripping.
During the maintenance process of the leakage fault, the cabinet door 2 is required to be opened first, the control handle 5 is rotated after the control handle 5 is adjusted in a sliding mode, until the lock tongue 64 slides to be separated from the limiting frame 8, current directly passes through the ground wire to trigger the leakage protector to trip, after the leakage, the cabinet door 2 is opened, and meanwhile, the power is cut off, so that the maintenance safety is improved.
In this embodiment, it should be noted that the control handle 5 needs to be made of an insulating material, so as to prevent the electric shock of the control handle 5 when the electric leakage occurs, and meanwhile, the internal resistance value of the control resistor needs to be selected according to the rated voltage of the main circuit, so that the current passing through the display lamp bead 71 when the electric leakage occurs is ensured to be smaller than the tripping reaction current of the electric leakage protector.
In addition, in the maintenance of daily use, after opening cabinet door 2, cabinet body 1 and cabinet door 2 are direct with ground connection, through earth leakage protector, security when can effectual improvement daily maintenance.
When daily use, influenced by the electric field, cabinet door 2 and cabinet body 1 are static often, consume the electric energy through display lamp pearl 71 this moment, and after the energy consumption, display lamp pearl 71 goes out, and the staff can judge cabinet door 2 and cabinet body 1 electrified condition according to the luminous duration of display lamp pearl 71 simultaneously.
Embodiment two: as shown in fig. 6 to 9, a comparative example one in which another embodiment of the present invention is:
the bottom of the inner cavity of the cabinet body 1 is fixedly provided with a guide rail 19, the guide rail 19 is of a U-shaped structure, the side wall of the guide rail 19 is slidably provided with a sliding block 20, the side wall of the sliding block 20 is provided with a mounting frame 21, and the sliding block 20 controls the mounting frame 21 to slide.
The side wall of the guide rail 19 is provided with a traction plate 18, the traction plate 18 and the mounting frame 21 synchronously slide, the bottom plate 10 is fixedly arranged on the outer wall of the traction plate 18, the bottom plate 10 is a common insulating rubber pad, a containing groove for the bottom plate 10 to slide is formed in the guide rail 19, the sliding mounting frame 21 controls the bottom plate 10 to slide along the containing groove through the traction plate 18, the pedal air bag 3 is fixedly arranged on the upper end surface of the bottom plate 10, and the pedal air bag 3 is an elastic rubber air bag.
During maintenance, the sliding mounting frame 21 controls the bottom plate 10 and the trampling air bag 3 to slide along the accommodating groove until the bottom plate 10 and the trampling air bag 3 slide out of the cabinet body 1 and are tiled on the ground, and when maintenance is performed, a worker stands on the trampling air bag 3, disconnects the connection between the ground and a human body, prevents current from flowing into the ground through the human body, and improves the use safety.
The cabinet body 1 is internally and fixedly provided with a control motor 15, the cabinet body 1 is internally provided with a support, the control motor 15 is fixedly arranged on the support, an output shaft of the control motor 15 is fixedly provided with a control screw 12, the control screw 12 is rotationally connected with the support through a bearing, the outer wall of the control screw 12 is connected with a control console 11 through threads, the control motor 15 drives the control screw 12 to rotate, thereby driving the control console 11 to slide, the control console 11 is fixedly connected with the outer wall of a sliding block 20, the sliding of a mounting frame 21 and a bottom plate 10 is controlled through the sliding block 20, the rotation of the control motor 15 is controlled through current passing through a display lamp bead 71, and when current passes through the display lamp bead 71, the control motor 15 is regulated through a singlechip, so that the bottom plate 10 and a trampling air bag 3 slide out of the cabinet body 1 and are horizontally paved, and the security of electric leakage overhaul is improved.
After maintenance, the manual adjustment control motor 15 rotates reversely to control the bottom plate 10 and the trampling air bag 3 to shrink into the cabinet body 1 so as to be convenient for the next use.
The inner wall of the cabinet body 1 is fixedly provided with a bearing frame 14, the side wall of the bearing frame 14 is rotatably provided with a guide roller 13, the guide roller 13 extends to the inside of a guide rail 19, the side wall of each bearing frame 14 is provided with two guide rollers 13, and when the bottom plate 10 slides along the guide rail 19, the radial outer wall of the guide roller 13 is attached to the bottom plate 10, so that the sliding resistance of the bottom plate 10 is reduced.
The inner wall fixed mounting of cabinet body 1 has driving motor 24, has seted up the outer wall at cabinet body 1 and has supplied film 10 and trampled gasbag 3 exhaust through-hole, and driving motor 24's output shaft fixed mounting has control roller 23, and driving motor 24 sets up on the support, and control roller 23 sets up in being close to the through-hole position, and control roller 23 symmetry is provided with two, and the radial outer wall of two control rollers 23 is laminated with the upper and lower both sides of film 10 respectively, and driving motor 24 drives control roller 23 rotation to be convenient for supplementary film 10 discharge and shrink.
The outer wall fixed mounting who bears frame 14 has mounting box 17, the outer wall fixed mounting of mounting box 17 has rotating electrical machines 22, the lateral wall of mounting box 17 rotates and installs swivel mount 16, the bottom surface of swivel mount 16 and the outer wall fixed connection of traction plate 18, slide mounting frame 21 to the turn of guide rail 19, swivel mount 16 control traction plate 18 rotates this moment, be convenient for control film 10 upset is buckled, until film 10 is parallel with the upside storage tank of guide rail 19, can improve film 10's accommodation space, and then can improve film 10's usable floor area, rotating electrical machines 22 pass through worm wheel worm cooperation control swivel mount 16 rotation, the output shaft fixed mounting of rotating electrical machines 22 has the worm, the worm wheel with worm meshing is installed in the inner wall rotation of mounting box 17, swivel mount 16 and the axial end fixed connection of worm wheel, in order that rotating electrical machines 22 control swivel mount 16 rotates.
Embodiment III: as shown in fig. 10 to 12, further steps are taken on the basis of the first embodiment and the second embodiment:
the inner wall fixed mounting of installation piece 4 has suction ring 32, and the inner wall fixed mounting of control handle 5 has the control ring 31 with suction ring 32 looks attraction, and control ring 31 and suction ring 32 are two looks attraction's magnet ring, attracts control handle 5 through magnetic force for control handle 5 has the trend of shrink to in the installation piece 4 in real time, after control handle 5 shrink to in the installation piece 4, blocks control handle 5 rotation through the inner wall of installation piece 4.
The inner wall of the mounting block 4 is fixedly provided with a guide cylinder 29, the inner wall of the guide cylinder 29 is slidably provided with a piston 25, the air pressure in the inner cavity of the guide cylinder 29 is regulated, the piston 25 is controlled to slide, the axial end of the piston 25 is fixedly provided with a movable rod 30 for pushing the control handle 5, and the sliding piston 25 pushes the control handle 5 out of the inner cavity of the mounting block 4 through the movable rod 30 so as to facilitate opening of the cabinet door 2.
The inboard fixed mounting of cabinet door 2 has bin 27, bin 27's inner chamber communicates with the inner chamber of guide cylinder 29 through the pipe, bin 27's outer wall is provided with barometer 28, barometer 28 is used for detecting bin 27 inner chamber's atmospheric pressure, bin 27 outer wall is provided with the inflating valve, can aerify bin 27 inner chamber through the inflating valve, trample the inner chamber of gasbag 3 and bin 27's inner chamber and pass through the rubber tube intercommunication, during the maintenance, the staff stands on trampling gasbag 3, thereby the extrusion tramples gasbag 3 compressed air, and then improve guide cylinder 29 inner chamber atmospheric pressure, piston 25 slip promotion control handle 5 roll-off installation piece 4's inner chamber, can rotate control handle 5 this moment.
In this embodiment, the control handle 5 is driven to slide by the air pressure change in the inner cavity of the trampling air bag 3, so that a worker can stand on the trampling air bag 3, and then the control handle 5 can be rotated to open the cabinet door 2, thereby further improving the safety during maintenance.
The inner wall fixed mounting that tramples gasbag 3 has elastic rubber strip 26, elastic rubber strip 26 is provided with a plurality ofly, and even distribution is trampling the inner chamber of gasbag 3, after the maintenance, the staff leaves tramples gasbag 3, elastic rubber strip 26 and tramples the recovery of gasbag 3, thereby control movable rod 30 shrink resets, close cabinet door 2 this moment, rotate control handle 5 until spring bolt 64 pegging graft with spacing frame 8, at this moment through the inner chamber of magnetic force attraction control handle 5 shrink to installation piece 4, realize cabinet door 2's locking, finally adjust control motor 15 shrink film 10 and trample gasbag 3 to the cabinet body 1 in, in order to use next time.
In this embodiment, preferably, the other power-off mode of the electromagnet 84 is that a pressure sensor is arranged in the stepping air bag 3, and the pressure sensor controls the electromagnet 84 to power off through a singlechip to ensure that the worker can release the lock of the limit pin 82 to the lock tongue 64 after standing on the safe stepping air bag 3 during maintenance, so as to open the cabinet door 2 and improve safety.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a switch board electric leakage detection device which characterized in that: the electric leakage protection device comprises a power distribution cabinet main body, a locking mechanism, a control mechanism and a detection module, wherein the power distribution cabinet main body is internally provided with an electric leakage protector;
the power distribution cabinet main body comprises a cabinet body (1) and a cabinet door (2) rotatably arranged on one side of the cabinet body (1);
the switch of the cabinet door (2) is controlled by the locking mechanism;
the control mechanism comprises a distribution plate (66), a power-off binding post (67) and a protection binding post (65) which are rotatably arranged on the inner side of the cabinet door (2), the distribution plate (66) is electrically connected with the cabinet door (2), and the power-off binding post (67) is electrically connected with a ground wire;
the detection module comprises a control resistor and a display lamp bead (71), wherein the electric power input end of the control resistor is electrically connected with the protection binding post (65), the electric power output end of the control resistor is electrically connected with the electric power input end of the display lamp bead (71), and the ground wire of the output end of the display lamp bead (71) is electrically connected.
2. The power distribution cabinet electricity leakage detection device according to claim 1, wherein: the locking mechanism comprises a mounting block (4) fixedly mounted on the outer side of the cabinet door (2), a control handle (5) slidably mounted in the mounting block (4), a limiting frame (8) and a lock tongue (64), wherein the lock tongue (64) is elastically arranged on the inner side of the cabinet door (2), the sliding of the lock tongue (64) is controlled by the rotation of the control handle (5), and the limiting frame (8) is fixedly mounted on the inner wall of the cabinet body (1) and the outer wall of the limiting frame (8) is provided with a groove for the lock tongue (64) to be inserted.
3. The power distribution cabinet electricity leakage detection device according to claim 2, wherein: the inner side of the cabinet door (2) is fixedly provided with a detection box (7) and a mounting box (6), the control resistor and the display lamp beads (71) are fixedly arranged on the inner wall of the detection box (7), and the light-emitting ends of the display lamp beads (71) extend to the outer side of the cabinet door (2);
the power-off binding post (67) and the protection binding post (65) are fixedly arranged on the inner wall of the mounting box (6);
the inner wall fixed mounting of spacing frame (8) has holding section of thick bamboo (81), the inner wall fixed mounting of holding section of thick bamboo (81) has electro-magnet (84), the inner wall elastic mounting of holding section of thick bamboo (81) has magnetic force board (83), the lateral wall fixed mounting of magnetic force board (83) have be used for with locating pin (82) of spring bolt (64) grafting, the inner wall fixed mounting of cabinet body (1) has control module (9) that are used for controlling electro-magnet (84).
4. A power distribution cabinet leakage detection apparatus according to claim 3, characterized in that: the inner wall elastic mounting of installation box (6) has connecting rod (62), the one end of connecting rod (62) with the outer wall fixed connection of spring bolt (64), the other end fixed mounting of connecting rod (62) has drive plate (68), control rod (61) are installed in the inner wall rotation of installation box (6), the outer wall fixed mounting of control rod (61) has control cam (63) that are used for promoting drive plate (68), the one end of control rod (61) extends to the inner chamber of control handle (5), and with control handle (5) sliding connection, distribution plate (66) fixed mounting is in the outer wall of control rod (61).
5. The power distribution cabinet electricity leakage detection device according to claim 4, wherein: a guide rail (19) is fixedly arranged at the bottom of the inner cavity of the cabinet body (1), a sliding block (20) is slidably arranged on the side wall of the guide rail (19), and a mounting frame (21) is arranged on the side wall of the sliding block (20);
the side wall of the guide rail (19) is provided with a traction plate (18), the traction plate (18) and the mounting frame (21) synchronously slide, a bottom plate (10) is fixedly arranged on the outer wall of the traction plate (18), and a trampling air bag (3) is fixedly arranged on the upper end face of the bottom plate (10).
6. The power distribution cabinet electricity leakage detection device according to claim 5, wherein: a control motor (15) is fixedly arranged in the cabinet body (1), a control screw (12) is fixedly arranged on an output shaft of the control motor (15), a control console (11) is connected to the outer wall of the control screw (12) through threads, the control console (11) is fixedly connected with the outer wall of the sliding block (20), and the rotation of the control motor (15) is controlled through current passing through the display lamp beads (71);
the inner wall of the cabinet body (1) is fixedly provided with a bearing frame (14), the side wall of the bearing frame (14) is rotatably provided with a guide roller (13), and the guide roller (13) extends into the guide rail (19);
the inner wall of the cabinet body (1) is fixedly provided with a driving motor (24), and an output shaft of the driving motor (24) is fixedly provided with a control roller (23).
7. The power distribution cabinet electricity leakage detection device according to claim 6, wherein: the outer wall fixed mounting who bears frame (14) has install bin (17), the outer wall fixed mounting of install bin (17) has rotating electrical machines (22), the lateral wall of install bin (17) rotates and installs swivel mount (16), the bottom surface of swivel mount (16) with the outer wall fixed connection of traction plate (18), rotating electrical machines (22) are through worm gear cooperation control swivel mount (16) rotate.
8. The power distribution cabinet electricity leakage detection device according to claim 7, wherein: an attraction ring (32) is fixedly arranged on the inner wall of the mounting block (4), and a control ring (31) which is attracted with the attraction ring (32) is fixedly arranged on the inner wall of the control handle (5);
the inner wall of the mounting block (4) is fixedly provided with a guide cylinder (29), the inner wall of the guide cylinder (29) is slidably provided with a piston (25), and the axial end of the piston (25) is fixedly provided with a movable rod (30) for pushing the control handle (5).
9. The power distribution cabinet electricity leakage detection device according to claim 8, wherein: the inner side of cabinet door (2) fixed mounting has bin (27), the inner chamber of bin (27) pass through the pipe with the inner chamber intercommunication of guide cylinder (29), the outer wall of bin (27) is provided with barometer (28), trample the inner chamber of gasbag (3) with the inner chamber of bin (27) passes through the rubber tube intercommunication.
10. The power distribution cabinet electricity leakage detection device according to claim 9, wherein: the inner wall of trampling gasbag (3) fixed mounting has elastic rubber strip (26), elastic rubber strip (26) are provided with a plurality ofly, and even distribution is in trampling the inner chamber of gasbag (3).
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| CN202311812082.5A CN117477385B (en) | 2023-12-27 | 2023-12-27 | Power distribution cabinet electric leakage detection device |
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| CN202311812082.5A CN117477385B (en) | 2023-12-27 | 2023-12-27 | Power distribution cabinet electric leakage detection device |
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| CN117477385B (en) | 2024-03-22 |
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