KR100450301B1 - provision refrigeration plant compressor switchboard panel for ship - Google Patents

Abstract

PURPOSE: A 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: A switchboard panel provided with a micro-chip for use in a ship includes an input/output printed circuit board(PCB)(300), 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 transmit the control signal to the compressor. 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, the display window, a plurality of control switches and a plurality of lamps are protruded from the front panel.

Description

Provision refrigeration plant compressor switchboard panel for ship

The present invention relates to a ship cooler switchboard panel with a microchip embedded, and more specifically, a plurality 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. The built-in microchip allows the user to easily check the abnormality and operation status of the equipment at a glance, as well as to add, delete and change new controllers. The present invention relates to a marine chiller switchboard panel with a microchip that can reduce the cost and reduce the size and weight of the panel.

Conventional ship cooler control panel (panel) is composed of a direct connection by a series circuit that is directly transmitted to a push button switch (sensor) or electrical signal of the sensor (sensor) 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 device such as the time indicator and ammeter among the controllers on the display panel that forms the panel. It is necessary to check sequentially so that the cause can be judged, so checking or repairing panel failure and abnormality is complicated and time-consuming, which reduces the work efficiency. As there is no device with control function, there are no indicators of operation status and cause of failure in operating various types of controllers installed on the panel. In order to be able to recognize the operation between different controllers and control periods So to form a line to be confirmed is determined whether or not the operation controller to each other so that there is a problem that is complex FIG step of making the panel glass of a failure often occurs.

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 each device through the output terminal, and the operating status of each device operated by the LEDs is provided on the panel. It is an object of the present invention to provide a marine cooler switchboard panel with a microchip that allows a user to check whether there is an abnormality of a device by displaying it on one or more display windows.

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 It is an object of the present invention to provide a marine cooler switchboard panel with a built-in microchip that can be easily changed and deleted.

1 is a layout view of a cooler panel according to the present invention,

2 is a configuration diagram of a cooler panel according to the present invention,

3 is a flowchart illustrating a cooler control process of a freezer compartment in a cooler panel according to the present invention;

4 shows a state of a chiller compressor with a chiller panel according to the invention.

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

100: front panel 200: switch and display PCB

300: main and input / output PCB

111: setting end switch 112: heater on / off switch

113: setting switch 114: upward switch

115: down switch 116: start switch

117: stop / reset switch

121: Power LED 122: Drive LED 123: Alarm LED

124: Heater LED 125: Standby LED 126: Restart LED

130: count display window 140: current display window

310: control signal input port 320: motor current signal input port

330: power supply signal input port 340: output port

500: microchip

The present invention having the above object is provided with a ventilator, a switch board panel for controlling a cooler including a solenoid valve for controlling the refrigerant circulation and a defrost heater and a compressor, transmitted from a temperature sensing sensor installed in a freezer compartment or a refrigerating compartment. An input / output PCB having a plurality of input ports connected to each other in parallel with each other and a control signal inputted from each operation switch, and one or more output ports connected to each other in parallel with each other, the control signals being transmitted to the compressor; A main PCB having a microchip having a control program configured to control a compressor according to a signal transmitted through the input / output PCB; A switching and display PCB installed adjacent to the main PCB and provided with at least one display window for displaying driving status and error information, and a plurality of control switches and lamps; Installed on the front of the switching and display PCB, the display window, a plurality of control switches and the lamp is made by a marine cooler 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 cooler switchboard panel with a built-in microchip according to the present invention will be described in detail.

1 is a layout view of a cooler panel according to the present invention, Figure 2 is a configuration diagram of a cooler panel according to the present invention, Figure 3 is a flow chart for explaining the cooler control process of the freezer compartment in the cooler panel according to the present invention, Figure 4 shows a state of a chiller compressor having a chiller panel according to the present invention.

As shown, the marine cooler switchboard panel with a microchip according to the present invention is composed of a plurality of PCB (200 ~ 300) and the front plate (100).

First, a ship equipped with a ship cooler switchboard panel with a microchip according to the present invention is provided with a fan for circulating cold air in the freezer compartment and the refrigerating compartment.

In addition, the freezer compartment and the refrigerating compartment are equipped with one or more temperature sensors for sensing the internal temperature.

In addition, the cooling fan installed in the freezing chamber is provided with a temperature sensor for detecting the defrost temperature, and is provided with a defrost heater.

Next, a description will be given of a ship cooler switchboard panel with a built-in microchip according to the present invention used in a ship having a cooler as described above.

The shipboard cooler switchboard panel with a microchip according to the present invention includes a front panel 100 that is exposed to the outside, a switching and display PCB 200 installed on a rear surface of the front panel 100, and a main having one or more input / output ports. And an input / output PCB 300.

The front panel 100 is a portion exposed to the front of the panel, as shown in FIG. 1, the plurality of LEDs 121 to 126, 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 and the main and input / output PCB 300 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 121 to 126 are power LEDs 121, driving LEDs 122, alarm LEDs 123, heater LEDs 124, and standby LEDs as one of means for indicating an operating state of each component. 125, and a restart prevention LED 126 is provided.

The power LED 121 is an indicator lamp indicating that power is applied to the entire system, including an operation panel. The power LED 121 is always turned on when the power is applied, and the driving LED 122 is a means for notifying whether the compressor is driven. The compressor is always on while the compressor is being driven, and the alarm LED 123 also sounds as a display means for informing that there is an error in the equipment.

The state in which the alarm LED 123 is activated is any one or more of the following states.

That is, when the compressor pressure is high, the motor is overcurrent, the cooling water pressure is low, the oil pressure switch is open when any one or more of the state is turned on.

The heater LED 124 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 125 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 126 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.

The plurality of switches 111 to 117 are switches for interrupting the power supplied to the cooler and setting a reference value required for the control of the cooler, including a setting end switch 111, a heater on / off switch 112, It is configured to include a setting switch 113, an up switch 114, a down switch 115, a start switch 116, and a stop / reset switch 117.

The setting end switch 111 is stored in the microchip 500 to be described later by setting the reference value according to the drive control of the cooler including the compressor by using each switch to be described later, by pressing it.

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 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 cooler, and presses it once, and then sets the reference value by operating each switch to be described later. Press the setting switch 113 again and the setting end switch 111 is pressed to end the setting of 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 drive of the compressor and by pressing it, power is supplied to the compressor so that the compressor starts driving.

The stop / reset switch 117 not only stops all the cooler 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 count display window 130 and the current display window 140.

The count display window 130 and the current display window 140 may display letters and numbers as an alphanumeric display, and the count display window 130 displays a corresponding mode when a setting value described later is changed. In operation, the system displays the time that the system is being driven, and the current display window 140 displays the motor current.

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 and input / output PCB 3 (00) to control the driving of the cooler.

The main and input / output PCB 300 includes one microchip 500, and includes a plurality of input ports 310 to 330 and an output port 340, which are input from each input port. The driving of the cooler is controlled according to a signal described later.

The cooler control program is installed in the microchip 500.

The input ports 310 to 330 may include a digital signal input port 310 through which a detection signal, a microchip control signal, and the like are input from control sensors of each compressor, and a motor current signal through which a current signal of a cooler motor is input. And an input port 320 and a power supply signal input port 330 to which a signal sensed from the power supply is input, and the output port 340 receives a control signal transmitted from the microchip 500 for each connector or It serves to deliver to the drive means.

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

First, a method of adjusting the set value of the freezer 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 current display window 140.

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

When the setting value of the corresponding mode is selected, the setting switch 113 is pressed again, and then the setting end switch 111 is pressed.

When the setting end switch 111 is pressed, the power supplied to the panel is turned off, and then turned on, and the setting value of the corresponding mode set in advance is immediately stored in the microchip 500.

As described above, the set values of various modes according to the control are adjusted or the preset reference values are stored in the microchip 500 and controlled by a refrigerator 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 refrigerator 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.

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

In addition, the error state of the compressor driving is a state in which any one of an input port input from a remote controller and an input port for inputting an oil pressure signal is closed, or one of an input port for inputting a signal from a preliminary controller and a motor overload relay is closed. to be.

In order for the compressor to be driven, the fan must be waiting to be driven, and the compressor must be maintained in the normal state (1) described above.

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 signal is turned off and an alarm signal is generated.

At this time, the restart prevention LED 126 and the standby LED 125 are turned on, and the state of the compressor is checked by the user.

During the inspection, the microchip 500 detects whether the reset driving prevention time is taken, as well as whether the compressor returns to its normal state (①).

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

The present invention as described above is the user's 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, the user can easily It is possible to know the operation status of the equipment to be used, and in order to identify the cause of the failure of the device constituting the equipment, the display means or alarms are applied to the switch board itself input through the microchip without checking step by step along the circuits in series. It is easy to find the cause of the fault through the quick check through the system, which shortens the time for repair work and improves the efficiency of work, and does not form a new controller or display unit even if a new device is added, changed, or deleted. Connect the port to the microchip's input The contents of the program can be easily changed from the outside, and the convenience of panel production, panel size and The reduction in weight has the effect of reducing the weight of the ship.

Claims (8)

A switch board panel having a fan and controlling a cooler including a solenoid valve for controlling a refrigerant circulation, a defrost heater, and a compressor, A signal input from a temperature sensing sensor installed in a freezer compartment or a refrigerating compartment and a control signal input from each operation switch are input and connected in parallel to each other, and one or more outputs that transmit the control signal to a compressor and are connected in parallel to each other. I / O PCB with port; A main PCB having a microchip having a control program configured to control a compressor according to a signal transmitted through the input / output PCB; A switching and display PCB installed adjacent to the main PCB and provided with at least one display window for displaying operation status and error information, and a plurality of control switches and lamps; The shipboard cooler switchboard panel with a microchip mounted to the front of the switching and display PCB, characterized in that the display panel, a plurality of control switches and the lamp is composed of a front plate protruding. The microchip installed in the main PCB has a cooler control program installed therein. The refrigerator control program includes: means for checking whether the compressor is in a driveable state and checking the ready state of the external device based on signals input from each sensor; 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, lighting the alarm LED, the restart prevention LED and the standby LED, and displaying and waiting for error information on the display window; Means for continuously detecting whether the compressor is in a steady state while waiting; When the compressor is in a normal state, it is judged whether the restart prevention time has elapsed, and when the restart prevention time has elapsed, the compressor is restarted. Switchboard panel. 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 cooler including the compressor after pressing it so that the set value is stored in the microchip described later A setting end switch for setting the heater, a heater on / off switch for turning on / off the heaters provided in the motor and the crankcase, a setting switch for setting the value of each parameter that is a reference for driving the cooler, and a display window. The mode to be displayed is to stop the up and down switches for selection, the start switch for starting the compressor operation, and to stop each compressor constituent means including the compressor and various control equipment for controlling the same. Includes a stop / reset switch that is responsible for recovering from an error The display window displays the corresponding mode when the setting value is changed, and displays the time that the system is running during the driving, a count display window for displaying an error, and a current display window for displaying the motor current. The lamp includes a power LED indicating that power is supplied to the entire system including an operation panel, a driving LED indicating whether the compressor is driven, an alarm LED indicating that there is an error in the equipment, and whether the power is supplied to the heater. For ships with microchips, comprising a heater LED indicating whether or not, a standby LED indicating whether the compressor is ready for operation, and an anti-recycling time indicating an anti-recycling time. Chiller switchboard panel. The shipboard cooler switchboard panel according to claim 1 or 2, wherein the display window is an alphanumeric display capable of displaying both letters and numbers. The shipboard cooler 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. Shipboard cooler switchboard panel with integrated microchip. 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. Marine chiller switchboard panel with built-in microchip, characterized in that the closed state. The method of claim 2, wherein the sensing state of the compressor in the means for continuously detecting the driving state of the compressor is characterized in that the low pressure port, the coolant pressure signal input port and the compressor high pressure port of the compressor is detected by the closed state Shipboard cooler switchboard panel with integrated microchip.