KR100952984B1 - Motor control center - Google Patents

Abstract

PURPOSE: A motor control center is provided to improve the convenience of administration and maintenance by unitizing an operation switch, an analog current meter, a switch c module, an analog timer, and an electronic overload relay to a single digital module in a body. CONSTITUTION: A digital measuring device(100) measures power data. A control unit(200) comprises a distribution circuit breaker manipulation part and a digital motor control block part. The digital motor control block part comprises a control module, a digital output module, and a communications module. The control module generates the operating information of the electric motor. The digital output module executes the moving, stop, trip and warning command of the electric motor according to the control signal of the control module. The communications module transmits and receives the operating information of the electric motor with a remote server. An LED display panel(300) displays the operating information of the electric motor.

Description

Motor control panel {MOTOR CONTROL CENTER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor control panel, and more particularly, to a motor control panel installed for the purpose of driving and protecting an electric device such as an electric motor or a resistance load of a power consumer.

In general, many electric motors are used for power heating and cooling systems, water and sewage control, elevator operation, and air conditioning in power consumers such as factories and buildings, and as power consumption increases and the size of facilities increases, As stabilization and reliability become important, the role of the motor control panel for driving and controlling these motors more stably becomes more important.

The motor control panel performs a function of distributing low-voltage electric power supplied from a power transformer to a plurality of electric motors and monitoring and blocking an overcurrent flow. For this purpose, the motor control panel has a number of units equipped with motor control power devices such as a circuit breaker (MCCB), an indicator lamp, an operation switch, a current transformer, and an electronic over current relay (EOCR). It is composed of

Since many of these motor control power devices must be installed in a limited unit space, manufacturers increase production costs such as complicated wiring, incorrect wiring due to human error, and increased processing time. It is difficult to control the motor smoothly without specialized knowledge because the operation is possible to know exactly.

In addition, when the on-site manager checks a large number of motor control panels day and night, the operation status of each motor is not easily grasped, and the inconvenience of taking a lot of time for checking each unit individually is inherent. There is also a risk of safety and it is possible to prevent the loss of personnel to lock the door to prevent the door key.

In addition, when the internal inspection in the operating state, there is an element that threatens the safety of workers due to power supply facilities such as busbars and cables, it is urgent to prepare measures to solve these problems.

The present invention has been made in view of the above problems, the first object of the present invention, the operation switch, analog current meter, switching module for operating and stopping the motor, analog timer, electronic By integrating an overload relay (EOCR) as one digital module, the maintenance and management is easy, and the administrator can easily control the operation and stop of the motor.

In addition, a second object of the present invention, by installing an LED sign on the front upper end to enable the field manager to visually and conveniently check the operating state of the motors in operation at a distance.

And the third object of the present invention, by installing a digital door lock on the rear door to block the outsider's access, minimize the number of people lost the door key, the inside of the eye with the naked eye without opening and closing the door through the sight inspection window It is to ensure that the human and physical property of the consumer is safely protected by the constant monitoring of the state of equipment and deterioration.

The present invention for achieving the technical problem relates to a motor control panel including a digital measuring device for measuring the power data including three-phase voltage and current, frequency, power factor, unit for monitoring and displaying the operating state of the motor LED screen for displaying the operation information of each motor, a digital door lock for opening and closing the rear door and the inspection window installed on the rear door to visually check the power equipment installed inside the rear door; .

According to the present invention as described above, by installing an LED sign on the front upper end has an effect that can be visually convenient to check the operating state of the motors in operation to the field workers at a long distance.

In addition, according to the present invention, by integrating a variety of existing power devices as a single digital module, the internal wiring of the unit can be simplified, prevent the incorrect wiring to improve the work efficiency and minimize the defective elements, the user Can be easily controlled, and the damage can be minimized by dealing quickly in case of an accident.

And according to the present invention, by installing a digital door lock on the rear door to block the outsider's access, minimize the number of people lost the door key, the state of the device inside the naked eye without opening and closing the rear door through the sight inspection window And it is also effective to prevent the accident in advance by constantly monitoring the deterioration state.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. In the meantime, when it is determined that the detailed description of the known functions and configurations related to the present invention may unnecessarily obscure the subject matter of the present invention, it should be noted that the detailed description is omitted.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is an external view of a conventional motor control panel, and as shown, a plurality of units 10 in which a circuit breaker is built in order to control various electric motors is configured, and a voltmeter 20 and an ammeter 30 are provided on a front surface thereof. And power devices such as a voltmeter switching switch 40, an ammeter switching switch 50, a wiring breaker operation handle 60, an operation switch 70, and a digital motor protection relay 80.

In addition, the opening / closing handle 90 of the rear door is a push-turn type, which is manufactured to be locked using a door key, and when the door is closed, it is completely enclosed to check the internal power equipment without opening the door. It is made to be impossible.

The motor control panel according to the present invention will be described with reference to FIGS. 2 to 7 as follows.

Figure 2 is an external view showing the front and rear of the motor control panel according to the present invention, the motor control panel as shown is a digital measuring device 100, unit 200, LED sign 300, digital door lock 400 and The inspection window 500 is made.

The digital measuring device 100 measures power data such as three-phase voltage and current, frequency, and power factor supplied from a power transformer.

The unit 200 performs a function of monitoring and displaying an operating state of the corresponding motor, as shown in FIG. 2, an operating state of the wiring breaker operation unit 210 and the motor operating the wiring breaker as shown in FIG. 2. It includes a digital motor control unit 220 to control. Here, although each unit 200 is not shown through the drawings, it is preferable to understand that each unit is connected to one electric motor.

3 is a front view of the digital motor control unit 220 according to an aspect of the present invention. Referring to FIG. 3, the detailed configuration of the digital motor control unit 220 will be described below.

Digital motor control unit 220 according to the present invention is used in the existing motor control panel, the operation switch, analog current meter, switching module for operating and stopping the motor, analog timer, electronic overload relay (EOCR), etc. It is integrated as a module.

Specifically, the digital motor control unit 220 from the power input module 221, the analog input module 222 for receiving each phase current to measure the current generated when the motor is operated, and from the analog input module 222 Based on the converted current data by A / D conversion of the input phase current, it generates information on the operation status of the motor (hereinafter referred to as 'operation information'), and power such as over current, ground fault current and unbalanced setting value. In the event of an accident, the control module 223 generates a control signal for stopping the operation of the motor and outputs an alarm, and executes the start, stop, trip and alarm commands of the motor according to the control signal generated from the control module 223. The digital output module 224, the display module 225 for displaying the operation information of the motor and the operation information of the motor generated from the control module 223 to the remote server (S), It includes a communication module 226 (RS-485) for receiving various control information from the burr (S).

4 is a detailed configuration diagram of the LED sign 300 according to the present invention, the LED sign 300 is installed on the front upper end of the motor control panel, to perform the function of displaying the operation information of each motor in real time, As shown, the information transceiver 310 and the information display unit 320 is included.

In detail, the information transmitting and receiving unit 310 receives the operation information of the motor from the control module 226 of the digital motor control unit 220 and transmits it to the information display unit 320.

The information display unit 320 is composed of a plurality of LED modules 321, and receives and displays the operation information of the motor from the information transmitting and receiving unit 310. At this time, one LED module 321 is composed of 32 pixels 321a, one pixel 321a is composed of a total of five LED (RED, GREEN).

On the other hand, the information transmitting and receiving unit 310 according to the present invention may receive a control signal of the LED sign 300 from a remote server (S) or a portable remote controller (R) of the field manager, the information display unit 320 is the control Information according to the signal can be displayed.

Accordingly, the LED sign 300 may display the operating state of each motor, as well as information displayed in real time based on a control signal input through the remote server (S) or a portable remote control (R) of the field worker. It is possible to change. In addition, the LED sign 300 can be manufactured in a compact size, it is possible to buy or attach to the limited space of the front of the motor control panel, easy to operate, the field workers can easily check the operating situation from a long distance have.

5 is a front view of the digital door lock 400 according to the present invention, the digital door lock 400 is installed in the rear door as shown in Figure 2, the operator can conveniently open and close the rear door of the motor control panel It can perform the function of blocking the access of outsiders.

At this time, the digital door lock 400 as shown in Figure 5 slide protection cover 410, the keypad 420 for password input, the door lock handle 430 for opening and closing and alarm sound when a predetermined number of input errors Alerting means for sending a 440 includes.

Therefore, the administrator can block the outsider's access by opening and closing the rear door through the password input, and can minimize the number of people who lose the door key.

6 is a front view of the inspection window 500 according to the present invention. As shown in FIG. 2, the inspection window 500 is for visually confirming power facilities installed in the rear door. As shown in the bending strength, impact resistance, heat-resistant temperature is formed of a good transparent tempered glass material.

Therefore, it is possible to prevent the accident in advance by constantly monitoring the state and deterioration state of the power equipment inside with the naked eye without opening and closing the rear door.

As described above and described with reference to a preferred embodiment for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described as described above, it is a deviation from the scope of the technical idea It will be understood by those skilled in the art that many modifications and variations can be made to the invention without departing from the scope of the invention. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

1 is an external view of a conventional electric motor control panel.

Figure 2 is an external view showing the front and rear of the motor control panel according to the present invention.

3 is a front view of a digital motor control unit according to an aspect of the present invention.

4 is a detailed configuration of the LED display board according to the present invention.

5 is a front view of a digital door lock according to the present invention;

6 is a front view of the inspection window according to the present invention.

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

100: digital measuring device 200: unit

300: LED display board 400: digital door lock

500: inspection window 210: wiring breaker control panel

220: digital motor control unit 310: information transmitting and receiving unit

320: information display unit 400: digital door lock

410: protective cover 420: keypad

430: door lock handle 440: alarm means

Claims (6)

In a motor control panel including a digital measuring device 100 for measuring power data including a three-phase voltage and current, frequency, power factor, Unit 200 for monitoring and displaying the operation state of the motor, LED display board 300 for displaying the operation information of each motor, digital door lock 400 for opening and closing the rear door and power equipment installed inside the rear door In order to check the naked eye, the inspection window 500 installed on the rear door; ≪ / RTI > The unit 200 includes a circuit breaker operation unit 210 for operating a circuit breaker and a digital motor control unit 220 for controlling an operation state of the motor. The digital motor control unit 220, the power input module 221; An analog input module 222 that receives each phase current to measure a current generated when the motor operates; On the basis of the current data converted by the A / D conversion of the phase current received from the analog input module 222, it generates information (hereinafter referred to as 'operation information') of the operating state of the motor, and when a power accident occurs, A control module 223 for generating a control signal for stopping operation and outputting an alarm; A digital output module 224 for executing a start, stop, trip and alarm command of the motor according to the control signal generated from the control module 223; A display module 225 for displaying operation information of the motor; And a communication module 226 which transmits operation information of the electric motor generated from the control module 223 to a remote server S and receives various control information from the remote server S. Electric motor control panel comprising a. delete The method of claim 1, The LED sign 300, An information transceiving unit 310 receiving operation information of the electric motor from the digital motor control unit 220 and transmitting it to the information display unit 320; And An information display unit 320 including a plurality of LED modules 321 and receiving and displaying operation information of the electric motor from the information transmitting and receiving unit 310; Electric motor control panel comprising a. The method of claim 3, wherein The information transmitting and receiving unit 310 receives a control signal from a remote server (S) or a portable remote control (R), the information display unit 320 is characterized in that for displaying the information according to the control signal. The method of claim 1, The digital door lock 400, Slide cover protection cover 410, the keypad 420 for password input, the door lock handle 430 for opening and closing and the alarm means 440 for transmitting an alarm sound when a predetermined number of password input error, characterized in that it comprises a Electric motor control panel. The method of claim 1, The inspection window 500 is a motor control panel, characterized in that the transparent tempered glass material.

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