KR0111169Y1 - Controll circuits of an airconditioner - Google Patents

Abstract

The present invention is provided with a detection unit for detecting the temperature of water in the water tank installed in the air conditioning and air conditioner, by controlling the heater operation properly when the hot air is selected, the hot air with a constant temperature is always discharged, and the water tank has a quantity detection unit It is possible to know when to replenish water from the outside according to the operation of the buzzer driving unit operated by the output signal of this quantity detection unit, and also to control the humidity according to the season by operating the dust collector during blowing and cold wind. It is about a control circuit.

Description

Control circuit of air-conditioning air conditioner

1 is a schematic diagram of a conventional heating and cooling air conditioner control circuit

2 is a schematic diagram of a heating and cooling air conditioner control circuit according to the present invention

3 is a view illustrating an embodiment of a heating and cooling air conditioner control circuit according to the present invention.

* Explanation of symbols for main parts of the drawings

10: AC / DC changing section 11: radio speaker

20: operation control unit 30: system controller

40: display unit 50: fan motor drive control unit

55: quantity detection unit 57: water temperature detection unit

60: buzzer drive unit 70: heat exchange filter drive unit

80: dust collector driving unit 90: heater driving unit

The present invention relates to a control circuit of a heating and cooling air conditioner, and more particularly, to control the operation of a heat exchange filter, a fan (FAN), a dust collector, and a heater according to the operation selection of the heating and cooling air conditioner to provide a comfortable and convenient heating and cooling function. The present invention relates to an executable control circuit.

The control circuit in the above is applied to the air-conditioning and air conditioner of the present applicant patent application (application number No. 92-7737).

In general, the operation control circuit of a conventional air-conditioning air conditioner that sucks indoor air, converts it into cold / hot air, and discharges it into a room has an outline as shown in FIG.

In FIG. 1, the AC / DC converter 1 converts AC power into DC power so that the system controller 2, the operation control unit 3, the fan motor drive control unit 4, the heat exchange filter drive unit 5 and the heater The system controller 2 inputs the data selected by the operation manipulator 3 as input to each power input terminal of the driver 6, and the system controller 2 supplies the fan motor drive controller (according to the data). 4) and the heat exchange filter driver 5 and the heater driver 6 is configured to control the connection.

The operation of the air-conditioning and air conditioner employing the control circuit as described above is determined by the selection of each function switch installed in the operation control unit 3.

That is, when any one of the strong, medium, and weak air volume switches installed in the driving unit 3 is selected, the corresponding data is applied to the input port 11 of the system controller 2, and according to the input data. The system controller 2 executes a program stored therein and supplies the result to the fan motor driving controller 4 through the output port 01. Therefore, the fan motor drive control unit 4 rotates the fan motor in accordance with the selected air volume by operating a switch such as a relay.

When the user selects the cold air switch installed in the operation control unit 3 in such a state or the initialization state, the corresponding data is applied to the input port 11 of the system controller 2, and accordingly the program stored therein is executed. The system controller 2 outputs a predetermined control signal to the output ports 01 and 02. Therefore, since the fan motor drive control unit 4 and the heat exchange filter drive unit 5 are operated, the indoor air is sucked and heat-exchanged with cold air and then discharged into the room.

On the other hand, when the user selects the hot air switch installed in the operation control unit (3), the data corresponding thereto is applied to the system controller 2, accordingly, the system controller 2 that performs the program stored therein is output port (01) A predetermined control signal is output to (02) (03). That is, the control signal output from the output port 01 of the system controller 2 is supplied to the fan motor drive control unit 4 to operate the fan motor as described above, and the control signal output from the output port 02 is heat exchanged. The heat exchange filter is supplied to the filter driver 5 to operate the heat exchange filter, and a control signal output from the output port 03 is applied to the heater driver 6 to operate the heater. Therefore, the sucked indoor air is heat-exchanged with warm air by the heat exchange filter and discharged into the room.

The air conditioning and air conditioner employing the control circuit operating as described above can not control the indoor humidity according to the season because almost constant moisture is mixed and discharged in the air when converting the indoor air sucked into the cold and hot air in the heat exchange filter, Since the operation of the heater is continued during hot air, the water temperature (temperature of the water in the water tank) cannot be kept constant, and there is a disadvantage in that the amount of water remaining in the water tank is unknown.

Therefore, the present invention was devised to solve the above-mentioned shortcomings, and the present invention was adopted in an air-conditioning and air conditioner to control indoor humidity by controlling operations of a heat exchange filter, a fan, a dust collector, and a heater according to the operation selection of the system. It is an object of the present invention to provide a control circuit that maintains the temperature of water in an air conditioner at an appropriate value and executes a comfortable and convenient cooling and heating function.

In order to achieve the above object, the control circuit according to the present invention has a peripheral device according to the data output from the operation control unit for selecting the operation direction of the system and the output data of the water quantity detection unit and the water temperature detection unit for detecting the quantity and temperature of water in the water tank, respectively. A display unit comprising a system controller for controlling the operation of the controller, an inverter for controlling the lighting of the light emitting element indicating the system operation direction by the signal level output from the output port of the system controller, and a resistor; Inverter that operates the relay which determines the rotational speed of the fan motor according to the level of the control signal output from the output port of the system controller when the water temperature is appropriate for the air flow rate, the air flow selection, and the warm air selection. Fan motor drive control unit composed of a diode, the quantity detection unit and the water temperature detection unit A buzzer driver comprising a transistor and a resistor for driving the buzzer by a system controller for comparing the data outputted from the data with the set reference data and outputting a control signal corresponding to the result value to the output port, and the system operation direction selected from the operation control unit. According to the data output from the water quantity detection unit and the water temperature detection unit, a heat exchange filter driver comprising a relay for controlling the operation of the heat exchange filter by a level inverting the output signal of the output port of the system controller from the inverter, and blowing is selected in the operation operation unit. In addition, when the cold air is selected and the amount of water is above a certain value, the dust collector driving unit is composed of a relay for controlling the operation of the dust collector by the level in which the output signal of the output port of the system controller is inverted in the inverter, and the warm air is selected in the operation control unit Over temperature Depending on the level in which inverts the output signal of the output port of the system controller in the drive characterized by consisting of a heater driving unit consisting of a relay for controlling the operation of the heater.

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

2 is a schematic diagram of a heating and cooling air conditioner control circuit according to the present invention,

3 is an exemplary view of a control circuit.

2 and 3, the system controller 30 is a water temperature detection unit 57 and a water quantity detection unit for detecting the temperature and the amount of water output from the operation control unit 20 for selecting the operation direction of the system and the water in the water tank And executes an internal program according to the output data of 55 to control the peripheral device.

The display unit 40 is operated by the system controller 30 to display the driving direction selected by the driving control unit 20 to the outside, and to display signal levels output from the output ports P6-P13 of the system controller 30, respectively. In this way, the inverters include an inverter IN1-IN8 and a resistor R4-R11 for controlling the lighting of the light emitting elements LED1-LED8 indicating the driving direction of the system.

The fan motor drive control unit 50 outputs the output port (P16-P18) of the system controller 30 when the temperature of the water is appropriate when the air flow rate selection, the airflow selection, and the warm air selection are performed in the operation control unit 20. Inverters IN9-IN11 for controlling the operation of relays RY1, RY2, and RY3, which determine the rotational speed of the fan motor M according to the level of the control signal output from the inverter, and the reverse voltage prevention diodes D1-D3. It is composed of

The quantity detecting unit 55 is in the heating / cooling air conditioner by the system controller 30 which performs an internal program according to the data output from the driving control unit 20 for selecting the operation direction of the system and the data corresponding to the temperature of the water in the water tank. A water quantity sensor 55A is installed in the water tank to detect the amount of water in the water tank of the water tank, and both terminals of the water quantity sensor 55A are connected to the input / output port P15 of the system controller 30 and the power supply voltage (+). 5V) is connected between the supply terminals, and the water temperature detection unit 57 is composed of a temperature sensor 57A and a resistor R14 whose internal resistance changes with temperature change in the water tank.

The buzzer driver 60 is operated by the system controller 30 which compares the data input from the water quantity detector 55 and the water temperature detector 57 with the reference value data set in the internal program and outputs the result to drive the buzzer. A switching transistor which is switched according to the control signal level of the system controller 30 which compares the data output from the water quantity detector 55 and the water temperature detector 57 with the set reference data and outputs the result to the output port P22. and buzzer BZ and resistors R12 and R13 that are driven by θ1 to generate buzzer sounds.

The heat exchange filter driving unit 70 is an output port of the system controller 30 when the cold air is selected in the operation control unit 20 and the amount of water is above a certain value and when the warm air is selected, the amount of water is above a certain value and the temperature of the water is within an appropriate value. A relay RY4 operated by an inverter IN12 that inverts and amplifies the level of the signal output from P20, and a heat exchange filter for heat-exchanging indoor air sucked by the relay RY4 for cooling and heating. .

The dust collector driving unit 80 may operate according to the level of the signal output from the output port P20 of the system controller 30 when air is selected from the driving control unit 20 or cold air is selected so that the amount of water is higher than a predetermined value. RY5 and a dust collector driven by this relay RY5.

The heater driving unit 90 is a heater by the level of the signal output from the output port (P21) of the system controller 30 when the warm air is selected in the operation control unit 20 and the water volume is appropriate and the temperature of the water is within the appropriate value It consists of a relay (RY6) that activates.

The AC / DC converter 10 is connected to a secondary coil of the transformer TRA to rectify an AC voltage to a DC voltage, and is connected in series to an output terminal of the rectifier circuit DB. A regulator (REG1) (REG2) for respectively outputting a voltage of the capacitor, and a capacitor (C1) (C2) connected to the front ends of the regulator (REG1) (REG2) to remove noise, and is output from the regulator (REG1). The voltage to be connected is connected to the radio speaker 11.

Referring to the operation relationship of the control circuit having the configuration as described above is as follows.

In FIG. 3, the AC power supply is converted into a DC voltage through the transformer TRA and the rectifier circuit BD in the AC / DC converter 10, and then set to two regulators that output different output voltages (12V and 5V). REG1 and REG2, and output voltages of the regulator REG1 and REG2 are supplied to the system controller 30, the radio speaker 11, and the peripheral devices, respectively. In such a manner that the voltage is supplied to the system controller 30 and the peripheral device, the system controller 30 scans the switch selected by the data input unit 20 by the scan pulse output from the input / output ports P0, P1, and P2. Then operate the system accordingly. For example, if you want to make the air volume discharged from the data input unit 20 strong, and select the corresponding switch, the scanned signal is supplied to the input / output port P3 of the system controller 30, so that the input / output ports P6 and P16 High signals are output at Since the high signal output from the input / output port P6 of the system controller 30 is applied to the inverter IN1 in the display unit 20, the light emitting device LED1 is turned on to display the system operation state to the outside. In addition, since the high signal output from the input / output port P16 of the system controller 30 is supplied to the inverter IN9, the relay RY1 of the fan motor drive control unit 50 is operated so that the amount of air discharged is strong. Determine the rotation speed of M). On the other hand, when the switch SW2 (SW3) in the data input unit 20 is selected to set the air volume to medium or weak, the system controller 30 operates as described above to operate the light emitting element LED2 in the display unit 40, ( The LED3) is turned on and the relays RY2 and RY3 are driven to control the rotation speed of the fan motor M to medium and weak.

When the blower switch SW4 of the operation control unit 20 is in the operating state or the initialization state as described above, the system controller 30 detects this and outputs a high signal for controlling the peripheral device. Output to (P17) (P20). Since the high signal output from the ports P7 and P10 of the system controller 30 is supplied to the inverters IN2 and IN5 in the display unit 40, the light emitting elements LED2 and LED5 are turned on and discharged. In addition to indicating that it is in the middle and the dust collector driving to the outside, the high signal output from the port (P7) (P20) of the system controller 30 is supplied to the inverter (IN10) (IN13) fan motor drive control unit 50 The relay RY2 and the dust collecting mechanism 80 is operated to rotate the fan motor in the middle and the air blown is cleaned by the dust collector.

When the cold air switch SW5 is selected in the operation control unit 20, the system controller 30 determines whether the amount of water detected by the quantity detecting sensor 55A of the quantity detecting unit 55 is greater than or equal to a predetermined value. If the amount of water supplied is not greater than a predetermined value, the system controller 30 outputs a high signal to the port P22, so that the buzzer BZ driving switching transistor θ1 of the buzzer driver 60 is turned on so that a buzzer sound is generated. If the amount of water detected is below a certain value, the system controller 30 outputs a high signal to the ports P10, P13, and P19 and P20. Since the light emitting element LED5 (LED5) in the display unit 40 to be displayed is turned on and the heat exchange filter driving unit 70 and the dust collector driving unit 80 are operated, the air sucked in the room is heat-exchanged by cold in the heat exchange filter. Through dust collector Tenderly it is discharged.

On the other hand, when the hot air switch (SW6) is selected in the operation control unit 20, the system controller 30 drives the buzzer (BZ) in accordance with the amount of water output from the water quantity detection unit 55 as described above to supply water in the water tank. In addition, when a certain value is exceeded, the system controller 30 outputs a high signal to the port P12 to cause the light emitting element LED7 to externally indicate that the heater is driven, and the high signal output from the port P21. Is supplied to the heater driving unit 90 through the inverter IN14 to increase the temperature of the water in the water tank.

In the process of increasing the temperature of the water in the water tank, the system controller 30 detects the temperature of the water in the water tank by the temperature sensor 57A and outputs an output signal of the water temperature detector 57 for outputting corresponding data. Take it as an input port (P15) and compare it with the reference temperature. As a result of the comparison, if the temperature of the water detected by the water temperature detector 57 is not an appropriate value, the system controller 30 outputs a control signal corresponding to the stop to the output ports P16, P17, and P18 to drive the fan motor. The operation of the control unit 50 is stopped to stop the rotation of the fan motor, and if it is within an appropriate value, the system controller 30 heat exchanges the filter driving unit 70 and the heater driving unit 90 to heat exchange the indoor air sucked in the room with warm air. ) And fan motor drive control unit 50, and outputs a signal to each output port to indicate whether the operation of them to the outside.

As described above, the system controller 30 determines whether the temperature of the water in the water tank detected by the water temperature detector 57 is appropriate while operating the heater driver 90 to increase the temperature of the mole in the water tank. If the detected temperature of the water is higher than the proper value, the system controller 30 inverts the signal output from the port P21 from high to low and supplies it to the inverter IN4 so that the heater configuration unit 90 stops operating. . When the detected water temperature is less than or equal to an appropriate value, the system controller 30 continuously operates the heater driving unit 90 to increase the temperature of the water in the water tank.

This proposal, which operates as described above, has a sensing unit that detects the temperature of the water in the water tank installed in the air conditioner and air conditioner, so that the heater operation can be properly controlled when the hot air is selected, and the hot air having a temperature within a certain range is always discharged. It is equipped with a water quantity detector in the water tank and knows when to replenish water from the outside according to the operation of the buzzer driver operated by the output signal of the water quantity detector. There is an effect that can be adjusted.

Claims (1)

The operation of the peripheral device is controlled according to the data output from the operation control unit 20 which selects the operation direction of the system and the output data of the water quantity detection unit 55 and the water temperature detection unit 57 which detect the quantity and temperature of the water in the water tank, respectively. With the system controller 30, Inverters IN1-IN8 and resistors R4 for controlling the lighting of the light emitting elements LED1-LED8 indicating the operation direction of the system by the signal levels output from the output ports P6-P13 of the system controller 30, respectively. A display portion 40 composed of -R11, When the temperature of the water is appropriate when the air flow rate selection, the airflow selection, and the warm air selection are performed in the operation control unit 20, the control signal output from the output ports P16-P18 of the system controller 30 is adjusted. A fan motor driving control unit 50 including an inverter IN9-IN11 for controlling the operation of the relay RY1-RY3 for determining the rotational speed of the fan motor M and a reverse voltage preventing diode D1-D3; The buzzer BZ is compared by the system controller 30 which compares the data output from the water quantity detector 55 and the water temperature detector 57 with the set reference data and outputs a control signal corresponding to the result to the output port P22. A buzzer driver 60 composed of a transistor Q1 and a resistor R12 and R13 for driving the The output signal of the output port P20 of the system controller 30 is inverted in the inverter IN12 according to the system operation direction selected by the operation operator 20 and the data output from the water quantity detector 55 and the water temperature detector 57. A heat exchange filter driver 70 composed of a relay RY4 for controlling the operation of the heat exchange filter by the level at which The operation of the dust collector by the level in which the output signal of the output port P20 of the system controller 30 is inverted in the inverter IN13 when the air blowing is selected in the operation control unit 20 and the cold air is selected is a predetermined amount or more. Dust collector driving unit 80, consisting of a relay (RY5) for controlling the, The operation of the heater is controlled according to the level of the inverted output signal of the output port P21 of the system controller 30 by the inverter IN14 when the warm air is selected by the operation control unit 20 and the amount of water and the temperature are predetermined values. Control circuit of a heating and cooling air conditioner, characterized in that consisting of a heater drive unit 90 consisting of a relay (RY6).