CN210806352U - Power distribution cabinet with low-voltage self-checking function - Google Patents
Power distribution cabinet with low-voltage self-checking function Download PDFInfo
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- CN210806352U CN210806352U CN201921669272.5U CN201921669272U CN210806352U CN 210806352 U CN210806352 U CN 210806352U CN 201921669272 U CN201921669272 U CN 201921669272U CN 210806352 U CN210806352 U CN 210806352U
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- power distribution
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- distribution cabinet
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Abstract
The utility model provides a switch board with low pressure self-checking function, including landing leg, switch board, cabinet door, self-checking mechanism and reputation warning light, the utility model discloses the setting of switch board has improved cabinet body thermal diffusivity, and the filter screen can block the entering of external dust in the time of ventilating, installs all electrical components on the insulation board, can play better insulating effect, has improved the security of equipment; the self-checking mechanism is arranged, a control signal generated by a PLC in the self-checking mechanism enters the first intermediate relay through the first fuse, the first intermediate relay controls the closing of the second contactor, the running of the equipment is realized, the starting and stopping of the equipment can be manually operated through the alternating current screen, and the automation control of the equipment is effectively improved; the second contactor is arranged, the second intermediate relay controls the disconnection of the first contactor, the working state of the second contactor can be cut off, a power supply can be cut off timely, and the situation that the load works live all the time to cause accidents is prevented.
Description
Technical Field
The utility model belongs to the technical field of the switch board, especially, relate to a switch board with low pressure self-checking function.
Background
Can all have the fault detection ware in the switch board, through the behavior of fault detection ware real-time detection switch board, can report to the police when the discovery problem, but the alarm lamp in the current switch board all is the outside of direct fixed mounting at the switch board casing, but such mounting means can reduce the life of alarm lamp in long-term weather drying, thereby can take place the condition of unable work in normal life cycle, thereby influence the warning, take place dangerously, to above-mentioned problem, a special area is proposed.
But the control of the load of still having the inconvenience of existing, in case can cause equipment live working always when the contactor in the switch board appears the adhesion trouble, can cause the emergence of major accident, can not realize intelligent control and cut off to and utilize the push rod to control the lift of siren and occupied a large amount of spaces of switch board, unpractical problem.
Therefore, the invention of the power distribution cabinet with the low-voltage self-checking function is very necessary.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a switch board with low pressure self-checking function to solve current still having the control of the load of not being convenient for, in case can cause equipment live operation always when the contactor in the switch board appears gluing even trouble, can cause the emergence of major accident, can not realize intelligent control and cut off, and utilize the push rod to control the lift of siren and occupied a large amount of spaces of switch board, unpractical problem. The power distribution cabinet with the low-voltage self-checking function comprises 4 support legs, a power distribution cabinet, a cabinet door, a self-checking mechanism and an acousto-optic warning lamp, wherein the support legs are arranged at four corners of the bottom of the power distribution cabinet and are fixedly welded with the power distribution cabinet; the cabinet door is connected with the power distribution cabinet through a hinge, and a handle lock is embedded in the cabinet door; the self-checking mechanism is arranged inside the power distribution cabinet and is detachably connected with the cabinet door; the acousto-optic warning lamp is fixed in the power distribution cabinet through a bolt.
The power distribution cabinet comprises a cabinet body, a mounting box, a vent, a filter screen and an insulating plate, wherein the cabinet body is in a rectangular box shape made of cold-rolled steel plates, and the mounting box is welded on the upper right side of the cabinet body; the ventilation opening is formed in the left upper end of the cabinet body and is flush with the mounting box in height; 2 filter screens are respectively embedded on the inner sides of the mounting box and the ventilation opening; the insulation board hot air lengthened bolt is fixed on the rear wall inside the cabinet body.
The self-checking mechanism comprises an air switch, a PLC (programmable logic controller), a first fuse, a second fuse, a first intermediate relay, a second intermediate relay, a first contactor, a second contactor and an alternating current screen, wherein the air switch is connected with a mains supply through a wire; the PLC controller is respectively connected with the first fuse, the second fuse and the first contactor through wires; the first fuse is connected with a first intermediate relay through a wire, and the first intermediate relay is connected with a second contactor.
The second fuse is connected with a second intermediate relay through a wire, and the second intermediate relay is connected with the first contactor through a wire; the wire inlet end and the wire outlet end of the first contactor are respectively connected with the air switch and the second contactor through wires; the alternating current screen is embedded on the cabinet door and is connected with the PLC through a lead.
The acousto-optic warning lamp is fixed in the mounting box through a bolt and is connected with the PLC through a wire.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses the setting of switch board, setting up to the height-equality of mounting box and vent, and the cabinet body is controlled penetrating, has improved cabinet body thermal diffusivity to and the filter screen can block the entering of external dust in the ventilation, guarantees the cleanness of the internal portion electrical components of cabinet, installs all electrical components on the insulation board, can play better insulating effect, has improved the security of equipment.
2. The utility model discloses the setting of self-checking mechanism, the control signal that the PLC controller produced among the self-checking mechanism passes through first fuse, gets into first auxiliary relay, and the operation of equipment has been realized to the closure of first auxiliary relay control second contactor, opens through what exchange the screen just can manually operation equipment stops, the effectual automatic control of equipment that has improved.
3. The utility model discloses the setting of second contactor, second contactor inlet wire end concatenates on first contactor is qualified for the next round of competitions and is held, first contactor normal close always provides the power for the second contactor always, when appearing gluing even trouble and when unable disconnection with the second contactor, the signal that the PLC controller produced transmits to second auxiliary relay through the second fuse, the disconnection of the first contactor of second auxiliary relay control, the operating condition of second contactor can cut off, the power cut-off that can be timely, prevent that the load from causing the unexpected condition of unnecessary to take place always live working.
4. The utility model discloses acousto-optic warning light's setting, acousto-optic warning light pass through the bolt fastening in the mounting box, have both reduced occupation space, can play the warning effect again.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the utility model discloses switch board structure schematic diagram.
Fig. 3 is a schematic view of the section A-A of the present invention.
In the figure:
1-supporting leg, 2-power distribution cabinet, 21-cabinet body, 22-mounting box, 23-ventilation opening, 24-filter screen, 25-insulating board, 3-cabinet door, 4-self-checking mechanism, 41-air switch, 42-PLC controller, 43-first fuse, 44-second fuse, 45-first intermediate relay, 46-second intermediate relay, 47-first contactor, 48-second contactor, 49-alternating current screen and 5-acousto-optic warning lamp.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in figures 1 to 3.
The utility model provides a power distribution cabinet with low-voltage self-checking function, including landing leg 1, power distribution cabinet 2, cabinet door 3, self-checking mechanism 4 and reputation warning light 5, 4 are adopted to landing leg 1, set up in the four corners department of power distribution cabinet 2 bottom, and this landing leg 1 and power distribution cabinet 2 welded fastening; the cabinet door 3 is connected with the power distribution cabinet 2 through a hinge, and a handle lock is embedded in the cabinet door 3; the self-checking mechanism 4 is arranged inside the power distribution cabinet 2 and is detachably connected with the cabinet door 3; and the acousto-optic warning lamp 5 is fixed in the power distribution cabinet 2 through a bolt.
The mounting box 22 and the vent 23 set up to highly the same, and the cabinet body 21 is left and right penetrating, has improved the cabinet body 21 thermal diffusivity to and filter screen 24 can block the entering of external dust in the time of ventilating, guarantees the cleaning nature of the inside electrical components of the cabinet body 21, installs all electrical components on insulation board 25, can play better insulating effect, has improved the security of equipment.
Control signal that PLC controller 42 produced among self-checking mechanism 4 passes through first fuse 43, gets into first intermediate relay 45, and the closing of second contactor 48 is controlled to first intermediate relay 45, has realized the operation of equipment, just can manually operation equipment open through exchanging screen 49 and stop, the effectual automatic control of equipment that has improved.
The inlet wire end of the second contactor 48 is connected in series with the outlet wire end of the first contactor 47, the first contactor 47 is normally closed, a power supply is always provided for the second contactor 48, when the second contactor 48 is in adhesion fault and cannot be disconnected, a signal generated by the PLC 42 is transmitted to the second intermediate relay 46 through the second fuse 44, the second intermediate relay 46 controls the disconnection of the first contactor 47, the working state of the second contactor 48 can be cut off, the power supply can be timely cut off, and unnecessary accidents caused by the fact that the load is always electrified are prevented from happening.
The acousto-optic warning lamp 5 is fixed in the mounting box 22 through bolts, so that the occupied space is reduced, and the warning function can be achieved.
Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.
Claims (5)
1. Switch board with low-voltage self-checking function, its characterized in that: the multifunctional cabinet comprises 4 support legs (1), a power distribution cabinet (2), a cabinet door (3), a self-checking mechanism (4) and an acousto-optic warning lamp (5), wherein the support legs (1) are arranged at four corners of the bottom of the power distribution cabinet (2), and the support legs (1) are welded and fixed with the power distribution cabinet (2); the cabinet door (3) is connected with the power distribution cabinet (2) through a hinge, and a handle lock is embedded in the cabinet door (3); the self-checking mechanism (4) is arranged inside the power distribution cabinet (2) and is detachably connected with the cabinet door (3); the acousto-optic warning lamp (5) is fixed in the power distribution cabinet (2) through a bolt.
2. The power distribution cabinet with the low-voltage self-checking function according to claim 1, wherein: the power distribution cabinet (2) comprises a cabinet body (21), a mounting box (22), a ventilation opening (23), a filter screen (24) and an insulating plate (25), wherein the cabinet body (21) is in a rectangular box shape made of cold-rolled steel plates, and the mounting box (22) is welded on the upper right side of the cabinet body (21); the ventilation opening (23) is formed in the left upper end of the cabinet body (21), and the ventilation opening (23) is flush with the mounting box (22) in height; 2 filter screens (24) are respectively embedded on the inner sides of the mounting box (22) and the ventilation opening (23); the insulating plate (25) is fixed on the rear wall inside the cabinet body (21) through the hot air lengthened bolt.
3. The power distribution cabinet with the low-voltage self-checking function according to claim 2, characterized in that: the self-checking mechanism (4) comprises an air switch (41), a PLC (programmable logic controller) (42), a first fuse (43), a second fuse (44), a first intermediate relay (45), a second intermediate relay (46), a first contactor (47), a second contactor (48) and an alternating current screen (49), wherein the air switch (41) is connected with a mains supply through a wire; the PLC controller (42) is respectively connected with the first fuse (43), the second fuse (44) and the first contactor (47) through wires; the first fuse (43) and a first intermediate relay (45) are connected by a wire, and the first intermediate relay (45) is connected to a second contactor (48).
4. The power distribution cabinet with the low-voltage self-checking function according to claim 3, wherein: the second fuse (44) and a second intermediate relay (46) are connected through a lead, and the second intermediate relay (46) is connected with the first contactor (47) through a lead; the inlet end and the outlet end of the first contactor (47) are respectively connected with the air switch (41) and the second contactor (48) through leads; the alternating current screen (49) is embedded on the cabinet door (3) and is connected with the PLC (42) through a lead.
5. The power distribution cabinet with the low-voltage self-checking function according to claim 1, wherein: the acousto-optic warning lamp (5) is fixed in the mounting box (22) through a bolt and is connected with the PLC (42) through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921669272.5U CN210806352U (en) | 2019-10-08 | 2019-10-08 | Power distribution cabinet with low-voltage self-checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921669272.5U CN210806352U (en) | 2019-10-08 | 2019-10-08 | Power distribution cabinet with low-voltage self-checking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210806352U true CN210806352U (en) | 2020-06-19 |
Family
ID=71231969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921669272.5U Active CN210806352U (en) | 2019-10-08 | 2019-10-08 | Power distribution cabinet with low-voltage self-checking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210806352U (en) |
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2019
- 2019-10-08 CN CN201921669272.5U patent/CN210806352U/en active Active
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