KR100450302B1 - air conditioning plant compressor switchboard panel for ship - Google Patents

Abstract

PURPOSE: An air conditioner switchboard panel provided with a micro-chip for use in a ship is provided to easily detect the cause of the failure by directly checking it through the micro-chip. CONSTITUTION: An air conditioner switchboard panel provided with a micro-chip for use in a ship includes an input/output printed circuit board(PCB)(400), a main PCB(300), a switching and display PCB(200) and a front panel(100). The input/output PCB is provided with a plurality of input ports connected to each other in parallel and at least one output port to output a compressor driving signal, a system on signal, a heater control signal, an error information signal and a capacitive control signal. The signal transmitted from the temperature detection sensor installed refrigerating room and the control signal are inputted to the input ports. The main PCB is provided with the micro-chip to set the control program for controlling the compressor in response to the signal transmitted through the input/output ports. The switching and display PCB is installed adjacent to the main PCB and provided with a display window, a plurality of control switch and a lamp. The front panel is installed on the front surface of the aluminum plate and provided with a display window, a plurality of control switches. And, the lamp is protruded from the front panel and a plurality of switches is installed on the front panel.

Description

Air conditioning plant compressor switchboard panel with built-in microchip

The present invention relates to a marine air conditioner switchboard panel with a built-in microchip, and more specifically, to the various types of devices having a control function and a display function and an integrated program that can be configured by integrating and controlling each controller in parallel. With a built-in microchip and a display window that displays the operation status and error of the equipment, the user can easily check the abnormality and operation status of the equipment at a glance, and can easily add, delete and change new controllers. The present invention relates to a shipboard air conditioner switchboard panel with a microchip that can reduce costs by reducing convenience and manpower loss in the production of switchboard panels and reducing the size and weight of the panel.

Conventional ship air conditioner control panel (panel) is composed of a direct connection by a series circuit that is directly transmitted to a pushbutton switch or a sensor (sensor) electrical signal to a magnetic contactor.

The configuration of the series circuit is to connect the various controllers to one panel in series so that each controller that controls one indicator to meet the functions required by the user is a panel having a multifunction ( In order to manufacture a panel, many controllers and indicators are attached to the panel, and thus, the size of the panel is enlarged when the panel is manufactured, which makes it difficult to manufacture, install, and transport.

In addition, it is connected to the controller that operates each indicator, and it displays the abnormality of the devices such as time indicator, temperature indicator, and ammeter among the controllers on the panel formed display panel. It is necessary to check all the equipments sequentially so that the cause can be determined. Checking and repairing panel failures and abnormalities is complicated and time-consuming, which reduces the work efficiency. However, since there is no device with integrated control function, there are no indicators of operation status and cause of failure in operating various types of controllers installed in the panel. To complement different controllers and control periods Since a check line must be formed to recognize the operation of the controller, it is necessary to determine whether the controller is operated.

The present invention has been made in order to solve the above problems, it is possible to configure a plurality of devices having a control function and a display function for one device and each controller in parallel, and integrated program that can integrate and control them The integrated microchips can be installed to perform a batch of control operations. The output of the control operations can be transmitted to the respective devices through the output terminal, and the operation state and error of each device operated by the panel is provided on the panel. It is an object of the present invention to provide a marine air conditioner switchboard panel with a built-in microchip that allows the user to check whether there is a problem with the device by displaying the LED and the display window.

In addition, the present invention is configured by connecting each device in parallel as described above, so that it can be controlled through a control program pre-input to the microchip to add a new device without resetting the control means of other devices or equipment And it aims to provide a marine air conditioner switchboard panel with a built-in microchip that can be easily changed and deleted.

1 is a layout view of an air conditioner panel according to the present invention;

2 is a block diagram of a switching and display PCB of the air conditioner panel according to the present invention,

3 is a configuration diagram of a main PCB of the air conditioner panel according to the present invention;

4 is a configuration diagram of an input / output PCB of an air conditioner panel according to the present invention;

5 is a flowchart illustrating a compressor control process of an air conditioner having an air conditioner panel according to the present invention.

6 shows a state of a compressor of an air conditioner having an air conditioner panel according to the present invention.

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

100: front panel 200: switch and display PCB

300: main PCB 400: input / output PCB

111: confirmation switch 112: heater on / off switch

113: Mode / Setting Switch 114: Upward Switch

115: down switch 116: start switch

117: stop / reset switch

210: current LED 211: counter LED 212: suction temperature LED

213: Power LED 214: Driving LED 215: Alarm LED

216 Heater LED 217 Standby LED 218 Restart prevention LED

219 ~ 222: Capacity control LED

130: first display window 140: second display window

500: microchip

The present invention having the above object is a switchboard panel for controlling an air conditioner including a capacity control valve and a compressor to open and close in stages, the signal transmitted from the temperature sensing sensor and the control signal input from each operation switch is input And an input / output PCB having a plurality of input ports arranged in parallel with each other, and output ports for outputting a compressor driving signal, a system on signal, a heater control signal, an error information signal, and a capacity control signal; And a control program for controlling the compressor according to a signal transmitted through the input port and the input / output port of the input / output PCB. A main PCB with a configured microchip; A switching and display PCB installed adjacent to the main PCB and provided with at least one display window for displaying driving information and error information, and a plurality of control switches and lamps; Installed in the front of the switching and display PCB, the display window, a plurality of control switches and the lamp is made by a ship air conditioner switchboard panel with a built-in microchip, characterized in that consisting of a protruding front plate.

Hereinafter, with reference to the accompanying drawings, an example of a marine air conditioner switchboard panel with a built-in microchip according to the present invention will be described in detail.

1 is a layout view of an air conditioner panel according to the present invention, FIG. 2 is a configuration diagram of a switching and display PCB of an air conditioner panel according to the present invention, and FIG. 3 is a configuration diagram of a main PCB of an air conditioner panel according to the present invention. 4 is a configuration diagram of an input / output PCB of an air conditioner panel according to the present invention, FIG. 5 is a flowchart illustrating a compressor control process of an air conditioner having an air conditioner panel according to the present invention, and FIG. 6 is an air conditioner having an air conditioner panel according to the present invention. The state of the compressor is shown.

As shown in the marine air conditioner switchboard panel with a microchip according to the present invention is composed of a plurality of PCB (200 ~ 400) and the front plate (100).

First, the marine air conditioner switchboard panel with a built-in microchip according to the present invention is provided with at least one temperature sensor and a capacity control valve for regulating the load of the compressor.

Marine air conditioner switchboard panel with a built-in microchip according to the present invention is the front panel 100 exposed to the outside, the switching and display PCB 200 installed on the back of the front panel 100, the main having one or more input and output ports It consists of a PCB 300 and an input / output PCB 400.

The front panel 100 is a portion exposed to the front of the panel, as shown in FIG. 1, the plurality of LEDs 210 to 222, the switches 111 to 117, and the display windows 130 and 140 are exposed. On one side of each LED, switch, and display window, a letter for abbreviating the function of the corresponding means is printed as shown.

The switching and display PCB 200 is installed behind the front panel 100, and the various LEDs and switches installed on the switch and display PCB 200 between the front panel 100 and the switch and display PCB 200. An aluminum plate is formed in which holes are formed so that they can protrude to the front plate.

On the back of the aluminum plate, the switching and display PCB 200, the main PCB 300, and the input / output PCS 400 are sequentially installed.

The switching and display PCB 200 is a printed circuit board on which the switches and LEDs are installed, and display windows 130 and 140 are installed at the center thereof.

The plurality of LEDs 210 to 222 are current LEDs 210, counter LEDs 211, suction temperature LEDs 212, power LEDs 213, and driving as one of means for displaying the operating state of each component. The LED 214, the alarm LED 215, the heater LED 216, the standby LED 217, the restart driving LED 218, and the capacity control LEDs 219 to 222 are provided.

The current LED 210 indicates that a current is displayed on the first display window 130 when the compressor is in operation, and the counter LED 211 has a driving time on the first display window 130 when the compressor is in a stopped state. The suction temperature LED 212 indicates that the suction temperature is displayed on the second display window 140.

The power LED 213 is an indicator lamp indicating that power is applied to the entire system, including an operation panel. The power LED 213 is always turned on when the power is applied, and the driving LED 214 is a means for notifying whether the compressor is driven. It is always on while the compressor is running, and the alarm LED 215 is an indication means for informing that there is an error in the equipment. The state in which the alarm LED 215 is operated may be any one or more of the following states. It is time.

That is, when the compressor pressure is high, when the motor and current protector is closed, when the cooling water pressure is high, when the oil pressure switch is opened, when the suction pressure switch is opened, when the discharge temperature of the compressor is 6 ℃ or less, the motor is abnormal. Lights when any one or more than two states of current error occur.

The heater LED 216 is a means for indicating whether or not the power is supplied to the heater is turned off when the power is not supplied to the heater.

The standby LED 217 is a means for notifying whether the compressor is ready to be driven and is not lit until the compressor and each means linked thereto are in a normal state.

The restart prevention LED 218 is turned on for an anti-recycling time, that is, a predetermined time for preparing for a restart. The restart prevention time can be arbitrarily set by a user in a microchip to be described later, and the restart prevention time can be set in consideration of the characteristics of each component.

In addition, the switching and display PCB 200 is further provided with a capacitive control LED (219 ~ 222), these LEDs (219 ~ 222) is a means for notifying the opening and closing of the capacity control valve of the compressor.

That is, the display means for displaying the opening and closing degree of the capacity control valve to sequentially control the load supplied from the compressor to prevent the excessive load is provided to the compressor.

The plurality of switches 111 to 117 are switches for controlling the power supplied to the air conditioner and setting reference values required for the control of the air conditioner, the confirmation switch 111, the heater on / off switch 112, and the mode. It comprises a / setting switch 113, an up switch 114, a down switch 115, a start switch 116, and a stop / reset switch 117.

The confirmation switch 111 is a switch for confirming the time that the compressor of the air conditioner is driven, and when it is pressed, the driving time is displayed on the first display window 130 described later.

The heater on / off switch 112 is a switch for turning on / off the heaters provided in the motor and the crankcase. When the switch is turned on, the heater is driven and the heater LED 124 is turned on.

The mode / setting switch 113 is a switch for setting the reference value, that is, the value of each parameter that is a reference for driving the air conditioner, and presses it once, and then sets the reference value by operating each switch to be described later. After the mode / setting switch 113 is pressed again, the confirmation switch 111 is pressed to finish setting the reference value.

The upswitch 114 and the downswitch 115 are switches for finding a reference value to be set, and after pressing the setting switch 113, a mode to be adjusted is displayed on the display window. Press to select the mode you want to adjust.

The start switch 116 is a switch for starting the driving of the compressor and by pressing the start switch 116, power is supplied to the compressor so that the compressor starts driving.

The stop / reset switch 117 not only stops all the air conditioner constituent means including the compressor and various control equipment for controlling the same, but also serves to return an error after removing the cause when an alarm occurs.

In addition, the switching and display PCB 200 is provided with a first display window 130 and a second display window 140.

The first display window 130 and the second display window 140 may display letters and numbers as alphanumeric displays, and the first display window 130 may display motor current or drive time. The second display cup 140 displays the suction temperature.

The setting value input from each switch and the control signal input from each switch are stored in the microchip 500 installed in the main PCB 300 to control the driving of the air conditioner.

The main PCB 300 includes one microchip 500, and controls the driving of the air conditioner according to a process described below according to signals input from the input ports of the input / output PCB 400.

An air conditioner control program is installed in the microchip 500.

The panel of the present invention is provided with an input / output PCB 400 which provides an input to the main PCB 300 and transmits a control signal transmitted from the main PCB 300 to each driving means.

The main PCB 300 includes a controller power supply port for supplying power to a controller, a current signal input port through which a motor current sensing signal transmitted through a current transformer is input, and a power supply control input from a power supply control means. Input ports for inputting signals from signals and temperature sensing sensors are arranged.

The input / output PCB 400 includes a plurality of input ports and output ports.

The input ports include a signal input from sensors of each compressor, a digital signal input port to which a microchip control signal and an overload signal of a motor are input, and an output port to transmit an input signal.

The air conditioner control program installed in the microchip 500 controls the air conditioner as follows.

First, a method of adjusting the set value of the air conditioner control program is as follows.

Press the stop / reset switch to cut off the power supply to the compressor.

At this time, the power of the control panel is being applied.

When the setting switch is pressed, the corresponding mode that can be adjusted is displayed on the first display window 130.

Looking at the first display window 130 and pressing the up or down switch (114, 115) to select the mode to be adjusted again, press the setting switch 113 again, the value of the selected mode is displayed on the second display window 140 While looking at this value, press the up or down position (114, 115) to select the set value of the mode.

When the setting value of the corresponding mode is selected, press the mode / setting switch 113 again, and then press the confirmation switch 111.

When the confirmation switch 111 is pressed, the setting value of the corresponding mode set in the foregoing is immediately stored in the microchip 500.

When the setting switch 113 is pressed and the confirmation switch 111 is pressed, the setting value of the corresponding mode set in the foregoing is immediately stored in the microchip 500.

As described above, the set value of various modes according to the control is adjusted or the preset reference value is stored in the microchip 500 and controlled by the air conditioner control program pre-installed in the microchip 500 as described above. In this case, the preset reference value or readjusted setting value serves as the reference value.

Hereinafter, an example of the driving process by the air conditioner control program installed in the microchip 500 will be described.

First, in order to be in the normal state (①) in which the compressor can be driven, the input port input from the remote controller and the input port through which the oil pressure signal is input are closed, and a signal is input from the preliminary controller and the motor overload relay. The input port should be open, the compressor high pressure input port should be open and the high temperature input port should be closed.

Furthermore, in order to be in a normal state (1) in which the compressor can be driven, the suction temperature must be high and the motor current must be normal under the above conditions.

The compressor low pressure input port, the coolant low pressure signal input port, and the interlockable input port remain closed when the compressor is driven (③) .In contrast, when the compressor is stopped (④), the low pressure port and the coolant of the compressor are closed. One of the low voltage signal input port and the interlockable input port is in an open state.

In addition, the error condition of the compressor operation is that any one of an input port input from a remote controller, an input port for inputting an oil pressure signal is closed, or an input port for inputting signals from a preliminary controller and a motor overload relay, and a compressor high pressure input port. It is closed, the high temperature input port is open, the suction temperature is low, and the motor current is high or at any one of two or more states.

In order to operate the compressor, power must be applied, and the compressor must maintain the above-mentioned normal state (①).

When the driving condition of the compressor is established and the drive is started, the compressor is driven and continuously detects the driving state of the compressor and continues to be driven if the compressor is in the normal state (①).

When a new drive control signal is input by the user in the process of driving the compressor as described above, the compressor is driven by the new control signal.If the compressor is not in a normal state, the compressor is stopped and the external used for driving the compressor. The control signal is turned off.

At this time, the error mode is displayed on the display window and an alarm sounds. The state of the compressor is then checked by the user.

After the inspection, the cause of failure is eliminated, and then the re-preventive time set in the microchip 500 is sensed as well as whether the compressor is returned to its normal state (①).

When the compressor returns to the normal state (①) and the user presses the start switch and the restart prevention time elapses, the compressor is restarted.

The present invention as described above is the operating state of the controller formed in the various devices constituting the equipment is directly input to the microchip through the input and output PCB configured in parallel so that the current state of the device after the operation operation appears on the LED or display window It is easy to know the operation status of the equipment you want to use, and also to identify the cause of the failure of the device constituting the equipment. It is easy to find the cause of the problem by checking through the system, which shortens the time for troubleshooting and improves the efficiency of the work, and does not form a new controller or display unit even if new equipment is added, changed or deleted. Connect the input / output port to the input terminal of the microchip and The contents of the integrated program of the chip can be easily changed from the outside, so the panel can be easily checked and the panel production work can be performed by making new panels or not installing additional controllers due to the addition or deletion of controllers. The reduction in size and weight has the effect of reducing the weight of the ship.

Claims (8)

In the switchboard panel for controlling an air conditioner including a capacity control valve and a compressor to open and close in stages, The signal transmitted from the temperature sensing sensor and the control signal input from each operation switch are input and a plurality of input ports arranged in parallel with each other, the compressor driving signal, the system on signal, the heater control signal, the error information signal, and the capacity control signal. I / O PCB with parallel output ports arranged in parallel with each other; And a control program for controlling the compressor according to a signal transmitted through the input port and the input / output port of the input / output PCB. A main PCB with a configured microchip; A switching and display PCB installed adjacent to the main PCB and provided with at least one display window for displaying driving information and error information, and a plurality of control switches and lamps; A shipboard air conditioner switchboard panel with a microchip installed on the front of the switching and display PCB, wherein the display window, the plurality of control switches and lamps are configured as a front plate. According to claim 1, wherein the microchip installed on the main PCB is provided with an air conditioner control program, The air conditioner control program includes: means for checking whether the compressor is in a driving state based on a signal input from each sensor or the like and checking a preparation state of an external device; Means for supplying power to the compressor to drive the compressor when it is determined that the driving condition is possible, and continuously detecting a driving state of the compressor; Means for stopping the operation of the compressor when the compressor error status information is input, turning on the alarm LED, the restart prevention LED and the standby LED, and displaying the error information on the display window and then waiting for the result; Means for continuously detecting whether the compressor is in a steady state while waiting; When the compressor is in a normal state, it is determined whether the restart prevention time has elapsed according to the user's switch operation, and if the restart prevention time has elapsed, the compressor is restarted and the LEDs turned off are turned off. Marine air conditioner switchboard panel with chip. According to claim 1 or claim 2, wherein the plurality of switches configured in the switching and display PCB by setting the reference value according to the drive control of the air conditioner including a compressor, by pressing it so that the set value is stored in the microchip described later A confirmation switch to switch on, a heater on / off switch for turning on / off a heater provided in the defrosting device, a mode / setting switch for setting a value of each parameter as a reference for driving the air conditioner, and a display on the display window. The mode to be adjusted is to stop the up and down switches for selection, the start switch for starting the compressor, the air conditioner constituting means including the compressor, and the various control equipment for controlling the error. Includes a stop / reset switch for resetting The display window includes a first display window and a second display window for displaying a corresponding mode when a setting value is changed, displaying driving information such as a time that the system is running during driving, and displaying corresponding error information when an error occurs. The lamp includes a current LED indicating that a current is displayed on a display window, a counter LED indicating that a driving time is displayed on a display window, a suction temperature LED indicating that a suction temperature is displayed on a display window, and an operation panel. A power LED to indicate whether power is supplied to the system, a drive LED to indicate whether the compressor is running, an alarm LED to indicate that there is a problem with the equipment, a heater LED to indicate whether power is supplied to the heater, A shipboard air conditioner switchboard panel comprising a microchip, comprising: a standby LED indicating whether the compressor is ready to be driven and an anti-recycling LED indicating an anti-recycling time. The shipboard air conditioner switchboard panel according to claim 1 or 2, wherein the display window is an alphanumeric display capable of displaying both letters and numbers. 4. The marine air conditioner switchboard panel according to claim 3, wherein the display window is an alphanumeric display capable of displaying both letters and numbers. The state in which the compressor can be driven is closed by an input port input from a remote controller and an input port through which an oil pressure signal is input, and an input port through which a signal is input from the preliminary controller and the motor overload relay is open. A marine air conditioner switchboard panel with a built-in microchip, characterized in that the high pressure input port of the compressor is opened, the high temperature input port is closed, the suction temperature must be high and the motor current is normal. The compressor fault condition is any one of an input port input from a remote controller, an input port for inputting an oil pressure signal, or an input port for inputting a signal from a preliminary controller and a motor overload relay. A shipboard air conditioner switchboard panel with a built-in microchip, characterized in that it is closed or the compressor high temperature input port is opened, the suction temperature is low, or the motor current is high. The method of claim 2, wherein the detecting of the driving state of the compressor in the means for continuously detecting the driving state of the compressor is made by detecting that both the low pressure port, the coolant pressure signal input port and the interlockable input port of the compressor is closed. Marine air conditioner switchboard panel with integrated microchip.