CN211123742U - Time-sharing power-off control device of power distribution cabinet - Google Patents

Time-sharing power-off control device of power distribution cabinet Download PDF

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Publication number
CN211123742U
CN211123742U CN202020021600.7U CN202020021600U CN211123742U CN 211123742 U CN211123742 U CN 211123742U CN 202020021600 U CN202020021600 U CN 202020021600U CN 211123742 U CN211123742 U CN 211123742U
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power
control
time
controller
sharing
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CN202020021600.7U
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胡冶川
杨槐
涂石养
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Vertiv Tech Co Ltd
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Vertiv Tech Co Ltd
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Abstract

The utility model relates to a time-sharing power-off control device of a power distribution cabinet, which comprises a controller, a detection unit and a plurality of power-off control switches; the detection unit is used for sending a trigger signal to the controller when the mains supply is powered off or the UPS inverter is in a working state; the power-off control switch is used for controlling the power supply on-off of the UPS inverter and the load; the controller is used for controlling the time-sharing opening and closing of the plurality of power-off control switches when receiving the trigger signal; the detection unit sends a trigger signal to the controller when detecting that the commercial power is cut off or the UPS inverter is in a working state, the controller controls the time-sharing opening and closing of the plurality of power-off control switches according to a set program, and then the power supply of the UPS backup battery can be distinguished, important key equipment is selectively supplied, the UPS backup battery runs for a longer time, the power supply and distribution mode is more reasonable, and fine control and management are easy to achieve.

Description

Time-sharing power-off control device of power distribution cabinet
Technical Field
The utility model relates to an uninterrupted power source technical field, more specifically say, relate to an electric control device under timesharing of switch board.
Background
In application scenes such as banking industry, telecommunication industry, financial industry, internet industry, public transportation control, important industry and the like, the requirements on power supply reliability and continuity are higher and higher, and the requirements on the use and distribution control of the supplied electric energy are higher.
Under the background, the application range of the UPS is wider and wider, and a scheme of the UPS and a backup storage battery also becomes a guarantee scheme for continuous power supply in many important occasions. However, due to factors such as battery cost, later maintenance and occupied space, the capacity of a backup battery matched with a set of UPS can only support the UPS to fully operate for 1-2 hours after power failure. However, even if the key equipment is important and subordinate, if all the equipment is uniformly powered by the UPS backup battery and is not controlled differently, all the equipment is powered on and powered off together, the energy of the battery can be consumed quickly, the important key equipment cannot be operated for a longer time, the power supply and distribution mode is unreasonable, fine control and management of current social development cannot be met, and accordingly the improvement of the technical management level is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide an electric control device under timesharing of switch board.
The utility model provides a technical scheme that its technical problem adopted is:
the time-sharing power-off control device of the power distribution cabinet is constructed and comprises a controller, a detection unit and a plurality of power-off control switches;
the detection unit is used for sending a trigger signal to the controller when the mains supply is powered off or the UPS inverter is in a working state;
the power-off control switch is used for controlling the power supply on-off of the UPS inverter and the load;
and the controller is used for controlling the time-sharing opening and closing of the plurality of power-down control switches when receiving the trigger signal.
Time sharing lower electric control device of switch board, wherein, electric control device still includes the input/output unit under the time sharing of switch board, the input/output unit is used for the adjustment control the controller.
Timesharing of switch board is electric control device down, wherein, input/output unit still is used for exporting controller running state.
Timesharing of switch board electric control device down, wherein, input/output unit adopts touch display screen.
The utility model discloses a timesharing of switch board is down electric control device, wherein, single down electric control switch control have one or more the load with the power supply break-make of UPS dc-to-ac converter; and each load is connected in series with a protection switch for controlling the on-off of the branch in which the load is positioned.
The utility model discloses a timesharing of switch board is down electric control device, wherein, the control switch that goes down includes signal conversion unit and ac contactor; and the signal conversion unit is used for receiving the control signal of the controller and converting the control signal into a passive dry contact point signal for triggering the AC contactor to be switched on and switched off.
Timesharing of switch board under electric control device, wherein, signal conversion unit adopts auxiliary relay.
Timesharing of switch board under electric control device, wherein, commercial power detecting element adopts auxiliary relay.
Timesharing of switch board electric control device down, wherein, the controller adopts P L C controller.
Timesharing of switch board electric control device down, wherein, the controller adopts time relay, electric control switch adopts timing relay down.
The beneficial effects of the utility model reside in that: the detection unit sends a trigger signal to the controller when detecting that the commercial power is cut off or the UPS inverter is in a working state, the controller controls the time-sharing opening and closing of the plurality of power-off control switches according to a set program, and then the power supply of the UPS backup battery can be distinguished, important key equipment is selectively supplied, the UPS backup battery runs for a longer time, the power supply and distribution mode is more reasonable, and fine control and management are easy to achieve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work according to the drawings:
fig. 1 is a schematic block diagram of a time-sharing power-off control device of a power distribution cabinet according to a preferred embodiment of the present invention;
fig. 2 is a power distribution time-sharing power-off system diagram of the time-sharing power-off control device of the power distribution cabinet according to the preferred embodiment of the present invention;
fig. 3 is a schematic circuit diagram of the power-off control switch of the time-sharing power-off control device of the power distribution cabinet according to the preferred embodiment of the present invention;
fig. 4 is a schematic diagram of a controller input/output circuit of the time-sharing power-down control device of the power distribution cabinet according to the preferred embodiment of the present invention;
fig. 5 is a schematic diagram of the circuit connection between the controller and the input/output unit of the time-sharing power-down control device of the power distribution cabinet according to the preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The time-sharing power-off control device of the power distribution cabinet of the preferred embodiment of the present invention, as shown in fig. 1, simultaneously participates in fig. 2-5, and comprises a controller 1, a detection unit 2, and a plurality of power-off control switches 3;
the detection unit 2 is used for sending a trigger signal to the controller 1 when the mains supply is powered off or the UPS inverter is in a working state;
the power-off control switch 3 is used for controlling the power supply on-off of the UPS inverter and the load;
the controller 1 is used for controlling the time-sharing opening and closing of the plurality of power-off control switches 3 when receiving the trigger signal;
the detection unit 2 sends a trigger signal to the controller 1 when detecting that the commercial power is cut off or the UPS inverter is in a working state, the controller 1 controls the time-sharing on-off of a plurality of power-off control switches according to a set program, and therefore power supply of the UPS backup battery can be distinguished, important key equipment can be selectively supplied, the UPS backup battery runs for a longer time, the power supply and distribution mode is more reasonable, and fine control and management are easy to achieve;
the utility model discloses an installation in the switch board of electricity down in need time sharing still has simple to operate, reliability height, occupation space are few simultaneously, and the reaction is fast, characteristics such as with low costs.
Preferably, the controller 1 adopts a P L C controller;
preferably, the time-sharing power-off control device of the power distribution cabinet further comprises an input/output unit 4, and the input/output unit 4 is used for adjusting the control controller 1; the input and output unit 4 is also used for outputting the running state of the controller; the input and output unit 4 adopts a touch display screen;
the touch display screen is an important component device matched with the P L C for use, plays a very important role in the device, and has two main functions, wherein one of the two main functions is to know the state of the P L C in real time, command setting and system operation conditions through the touch display screen, and the other function is to select whether the working state of the P L C is an automatic state or a manual state through the display screen, most importantly, the electricity supply time of each time period can be flexibly set according to the actual situation of the field, and compared with the traditional P L C control program mode, the time of background programming and copy implantation is reduced;
preferably, the power supply of the touch display screen is converted into a 24V/DC power supply by a third party power supply or a UPS output power supply through a power supply module;
preferably, the P L C controller and the touch display screen are connected through an RS485 twisted pair shielded wire, and the communication mode is an RS485 protocol.
Preferably, the single power-off control switch controls the power supply of one or more loads and the UPS inverter to be switched on and off; each load is connected in series with a protection switch for controlling the on-off of the branch in which the load is located;
it can be understood that a mode of controlling the on/off of a plurality of loads by one power-down control switch, a mode of controlling the on/off of one load by one power-down control switch, or a mixed collocation form of the two can be adopted according to the actual use requirement;
of course, P L C output point can be used to control a plurality of power-down control switches, each of which controls one or more output circuits, or P L C output point can be used to control one power-down control switch, each of which controls one output circuit;
the protection switch preferably adopts small circuit breakers QF 1-QF 27 to provide power supply and line protection for the terminal load, and the functions of ensuring safe operation of the rear-end load, breaking fault current and the like are achieved.
Preferably, the power-off control switch comprises a signal conversion unit and alternating current contactors, alternating current contactors KM1, KM2 and KM3, preferably, the signal conversion unit adopts intermediate relays KA1, KA2 and KA3, and 3 intermediate relays convert P L C output signals into passive dry contact point signals which are connected into a control loop of the contact coil, so that the switching-on and switching-off of the alternating current contactors are controlled, and finally, the power-on and power-off of circuit breakers arranged at the rear ends of the alternating current contactors are realized.
The alternating current contactor serves as a key device for power supply breaking/attracting in the control system, the alternating current contactor performs corresponding actions after receiving a signal output by P L C to realize a time-sharing power-off function, the current of the alternating current contactor is determined according to the current amount loaded in each time period, and the number of the alternating current contactors depends on the number of power-off time periods required by the system.
Preferably, the output ends of the alternating current contactors are connected into a 3-phase bus copper bar, and the bus bar supplies power to the tail end output switch.
Preferably, the utility power detection unit adopts an intermediate relay KA, and the intermediate relay KA converts the utility power on-off condition into a passive dry contact signal and provides the passive dry contact signal for judgment of P L C.
One alternative is to: the controller adopts a time relay, and the power-off control switch adopts a timing relay; the mode can also realize the purpose of time-sharing control;
another alternative is: the alternating current contactor is replaced by a switch which can receive passive signals to carry out switching on and off control, such as an infrared switch.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims (10)

1. The time-sharing power-off control device of the power distribution cabinet is characterized by comprising a controller, a detection unit and a plurality of power-off control switches;
the detection unit is used for sending a trigger signal to the controller when the mains supply is powered off or the UPS inverter is in a working state;
the power-off control switch is used for controlling the power supply on-off of the UPS inverter and the load;
and the controller is used for controlling the time-sharing opening and closing of the plurality of power-down control switches when receiving the trigger signal.
2. The time-sharing power-down control device of the power distribution cabinet according to claim 1, further comprising an input-output unit, wherein the input-output unit is used for adjusting and controlling the controller.
3. The time-sharing power-down control device of the power distribution cabinet according to claim 2, wherein the input-output unit is further configured to output the controller operation state.
4. The time-sharing power-down control device of the power distribution cabinet according to claim 2 or 3, wherein the input/output unit adopts a touch display screen.
5. The time-sharing power-down control device of the power distribution cabinet according to claim 1, wherein a single power-down control switch controls power supply switching of one or more loads and the UPS inverter; and each load is connected in series with a protection switch for controlling the on-off of the branch in which the load is positioned.
6. The time-sharing power-down control device of the power distribution cabinet according to claim 1, wherein the power-down control switch comprises a signal conversion unit and an alternating current contactor; and the signal conversion unit is used for receiving the control signal of the controller and converting the control signal into a passive dry contact point signal for triggering the AC contactor to be switched on and switched off.
7. The time-sharing power-off control device of the power distribution cabinet according to claim 6, wherein the signal conversion unit adopts an intermediate relay.
8. The time-sharing power-off control device of the power distribution cabinet according to claim 1, wherein the commercial power detection unit adopts an intermediate relay.
9. The time-sharing power-off control device of the power distribution cabinet according to claim 1, wherein the controller is a P L C controller.
10. The time-sharing power-off control device of the power distribution cabinet according to claim 1, wherein the controller is a time relay, and the power-off control switch is a timing relay.
CN202020021600.7U 2020-01-06 2020-01-06 Time-sharing power-off control device of power distribution cabinet Active CN211123742U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020021600.7U CN211123742U (en) 2020-01-06 2020-01-06 Time-sharing power-off control device of power distribution cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020021600.7U CN211123742U (en) 2020-01-06 2020-01-06 Time-sharing power-off control device of power distribution cabinet

Publications (1)

Publication Number Publication Date
CN211123742U true CN211123742U (en) 2020-07-28

Family

ID=71707500

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020021600.7U Active CN211123742U (en) 2020-01-06 2020-01-06 Time-sharing power-off control device of power distribution cabinet

Country Status (1)

Country Link
CN (1) CN211123742U (en)

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