KR20070078143A - Control system of distributing board - Google Patents

Abstract

A control system of a distributing board is provided to simplify an electrical wiring within the distributing board by omitting electrical lines between an operational button and a display lamp. An electromagnetic switch is installed an inside of a distributing board(10) in order to control power of a load such as a motor. An operational button(22) and display lamps(24,33) are installed at an opening/shutting door(11) of the distributing board in order to identify on/off states of the electromagnetic switch. A transmission unit(20) is installed an inner surface of the opening/shutting door of the distributing board in order to output an infrared control signal according to on/off operations of an operational button. A reception unit(30) is installed in the inside of the distributing board and is electrically connected to the electromagnetic switch in order to turn on/off the electromagnetic switch.

Description

Control system for switchboard {CONTROL SYSTEM OF DISTRIBUTING BOARD}

1 is a general motor control circuit diagram,

2 to 4 is a reference picture of a conventional switchboard,

5 is an exemplary view illustrating a control system for a switchboard according to the present invention;

6 is a block diagram of a control system for a switchboard according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: switchboard 11: switchgear door

20: transmitter 21: first power supply

22: operation button 23: infrared light emitting unit

24: first indicator light 25: first dip switch portion

25a: first dip switch 25b: IC chip

30: receiver 31: second power supply

32: infrared light receiving unit 33: second display

34: second dip switch unit 34a: second dip switch

34b: IC chip 35: output stage

35a: relay 36: emergency switch

The present invention relates to a control system for a switchboard, and more specifically, to simplify the electrical wiring of the switchboard by omitting the electrical wiring with the operation buttons and indicator lights installed in the switchgear door, while the on / off control of the load between the transmitter and receiver The present invention relates to a control system for a switchgear that enables the data path to be set up to improve operational reliability.

FIG. 1 shows a general motor control circuit. As shown in the drawing, when the circuit breaker 1 is applied to supply power, the electronic switch is excited by pressing the on operation button 2. 3 'is closed, and thus power is applied to the motor 4 to be started.

The motor control circuit as described above is implemented in a switchboard of a machine room or a control room, and a general switchboard includes MCCB, TOR, and MC inside thereof, and is electrically wired in sequence, so that the switchboard opening and closing doors can be checked from the outside. Electrical wiring is made to the control buttons and indicator lights installed on the screen.

Next, FIGS. 2 to 4 are reference photographs of a conventional switchboard.

2 is a photograph in which one line is electrically wired in the switchboard, and b of FIG. 2 is a photograph in which operation buttons and indicators are electrically wired on the switchgear door.

3 is a photograph in which seven lines are electrically wired in a switchboard, and FIG. 3b is a photograph in which operation buttons and indicators are electrically wired on a switchgear door.

Figure 4a is a photograph of the 12 lines are electrically wired in the switchboard, Figure 4b is a photograph of the operation button and the indicator according to the electrical wiring on the switchgear opening door, Figure 4c is according to the outer surface of the switchboard opening door The picture shows the operation button and indicator.

According to the conventional switchgear, in order to check the control of the electronic switchgear installed in the switchgear and the operation state according to the operation buttons and indicators are installed on the outside of the switchgear door, the electrical wiring is made on the inner surface of the switchgear door. Electric wiring is required from the switchboard to the inner side of the door, which has a limitation in reducing work time and simplifying wiring work.

In particular, as the number of circuits in the switchgear increases, separate ducts are required for electrical wiring, and when an abnormality occurs on the tracks, the ducts must be dismantled to check all the lines. There was a problem that was difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its object is to omit the electrical wiring with operation buttons and indicator lights installed on the switchgear doors, simplifying the electrical wiring in the switchboard, and transmitting the load during on / off control. It is to provide a control system for a switchboard to improve the operation reliability by establishing a data path between receivers.

It is another object of the present invention to provide a control system for a switchboard that is extremely easy to maintain by enabling an immediate detection of an abnormality of a corresponding line even if the line increases in the switchboard.

In order to achieve the above technical problem, an electronic switch for controlling a load power source such as a motor is disposed in a switchboard, and operated outside the switchboard opening / closing door so that the electronic switch can be checked on / off operation and operation from the outside. A transmitter and a transmitter, which are provided on the inner side of the switchgear door so as to omit electrical wiring between the electronic switch, the operation button and the indicator, and a transmitter for outputting an infrared control signal according to on / off operation of the operation button, and a transmitter Corresponding to and is installed in the switchboard is characterized in that the receiving unit for receiving the infrared control signal of the transmitter to turn on / off the electronic switch.

In addition, the transmission unit is provided with a first dip switch unit for controlling to transmit an infrared control signal of a specific band according to the on / off operation of the operation button, and emits red and green light in accordance with the on / off operation of the operation button A first indicator is provided, and a receiver is provided with a second dip switch unit for controlling to receive an infrared control signal of a specific band, and a second indicator that emits red and green colors according to on / off of the electronic switch. It is characterized by.

And the receiving unit is provided with a relay for opening and closing the contact of the electronic switch based on the second dip switch unit, characterized in that the emergency switch for manually operating the relay in case of emergency.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the control system for switchboard according to the present invention.

5 is an exemplary view illustrating a control system for a switchboard according to the present invention, and FIG. 6 is a block diagram of a control system for a switchboard according to the present invention.

First, as shown in FIG. 5, according to the embodiment of the present invention, a circuit breaker, a relay, an electronic switch 3, etc. are sequentially wired for driving or controlling a load, driving an electric motor, and the like in the switchboard 10. A receiving unit 30 is provided to receive the infrared control signal and turn on / off the contact point of the electronic switch 3.

In addition, on the switchboard opening / closing door 11, an operation button for controlling the operation of the load on / off, and a transmitter 20 for transmitting the on / off signal by the operation button as an infrared control signal to the receiver 30. It is prepared in response.

Accordingly, the electric wiring between the electronic switch 3 in the switchboard 10 and the operation buttons on the switchboard opening / closing door 11 can be omitted, and when several lines are arranged in the switchboard 10, the receiver 30 and each line are arranged. Each of the transmitters 20 can simplify electrical wiring.

6 is a block diagram of a control system for a switchboard according to the present invention.

As shown in the figure, the transmitter 20 receives a 220 volt input, a first power source 21 for supplying power to the transmitter, an operation button 22 for transmitting an infrared control signal, and infrared light emission. Infrared control signal of a specific band according to the unit 23, the first indicator 24 for displaying the operation state according to the on / off operation button 22 and the on / off operation of the operation button 22 Is provided with a first dip switch unit 25 for controlling to send.

The receiver 30 receives the 220 volts and receives a second power supply 31 for supplying power to the receiver, an infrared receiver 32 for receiving an infrared control signal transmitted from the transmitter 20, and an infrared receiver. A second indicator 33 for displaying an operation state according to the control unit, a second dip switch unit 34 for controlling to receive an infrared control signal of a specific band, and an electronic device when receiving an infrared control signal of a specific band. An output end 35 for opening and closing the contact of the switch 3 is provided.

According to the above technical configuration, when the operation button 22 is pressed, the first indicator 24 lights red to display an operation state of a load (for example, a motor, etc.) side, and the first dip switch unit 25. The infrared control signal of the specific band set by? Is transmitted from the infrared light emitting section 23.

When the infrared control signal of a specific band set by the second dip switch unit 34 is received through the infrared light receiving unit 32, the second indicator 33 lights red to indicate an operation state of the load side. The contact of the electromagnetic switch 3 is closed by the output terminal 35 to supply power to the load side.

That is, the dip switch unit consisting of an IC chip and a dip switch transmits and receives an infrared control signal of a specific band, and is operated by a matched infrared control signal.

Therefore, even if it is desired to control several lines by operating the first and second dip switches 25a and 35b of the first and second dip switch units 25 and 34 so as to operate only in the infrared control signal of a specific band, mutual interference is desired. Will not receive.

Meanwhile, the first dip switch 25a allows the infrared control signal of a specific band to be transmitted through the infrared light emitting unit 23 by the first IC chip 25b, and the second dip switch 34a is the second dip switch 34a. Since the IC chip 35b is for intermittently receiving the infrared control signal of a specific band, the IC chip 35b may be implemented by various means for switching the internal circuit of the IC chip.

In addition, the output terminal 35 is a relay 35a electrically connected to the electromagnetic switch 3 side so as to open and close a contact of the electromagnetic switch 3 based on the second dip switch unit 34, and an emergency relay ( An emergency switch 36 is provided for manually operating 35a).

The above detailed description is a preferred embodiment according to the present invention, and the present invention is not limited to the above embodiments, and the present invention without departing from the gist of the present invention claimed in the claims of the present invention is common in the field. Anyone with knowledge will be able to make various variations.

As described in detail above, according to the present invention, by simplifying the electrical wiring in the switchboard by omitting the electrical wiring with the operation buttons and indicator lights installed on the switchgear door, while the on / off control of the load (motor) between the transmitter and receiver The effect of setting the data path is to improve operational reliability.

In particular, even if the line is increased in the switchboard, the electrical wiring with the operation button and the indicator is omitted, it is possible to immediately detect the abnormality of the corresponding line, there is a very excellent effect that the maintenance is extremely easy accordingly.

Claims (3)

Electronic switchgear for interrupting load power such as a motor is installed in the switchboard, and a control system for a switchboard having an operation button and an indicator light on the switchgear door so as to check whether the electronic switch is on / off from the outside. To A transmission unit installed on the inner side of the switchboard opening / closing door so as to omit electrical wiring between the electronic switch, the operation button, and the indicator light, and outputting an infrared control signal according to an on / off operation of the operation button; And a receiver installed in the switchboard corresponding to the transmitter and electrically connected to the electronic switch to receive the infrared control signal of the transmitter and to turn on / off the electronic switch. The method of claim 1, The transmitting unit includes a first dip switch unit for controlling to transmit an infrared control signal of a specific band according to an on / off operation of the operation button, and loads an operation state according to an on / off operation of the operation button. A first indicator for emitting green light is provided. The receiving unit is provided with a second dip switch unit for controlling to receive an infrared control signal of a specific band, and a switch board characterized in that it is provided with a second indicator for emitting light in red and green to open and close the electronic switch Control system. The method of claim 2, The receiving unit is provided with a relay for opening and closing the contact of the electronic switch based on the second dip switch unit, the emergency switch for controlling the relay further comprises an emergency switch for the manual operation.

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