KR100239574B1 - Dry operation control apparatus and method for air conditioner - Google Patents

Abstract

The present invention relates to a dry operation apparatus for an air conditioner and a control method thereof, wherein a refrigerant is circulated in the order of a compressor, an outdoor heat exchanger, a capillary tube, and an indoor heat exchanger to perform a cooling operation, and a refrigerant is circulated in a reverse cycle of the cooling operation. An operating apparatus of an air conditioner for heating operation, comprising: a four-way valve for converting a refrigerant flow to convert the cooling operation to a heating operation, an indoor temperature sensing means for sensing an indoor temperature, and the indoor temperature sensing means; Control means for controlling the dry operation until the completion of one cycle to reach the set temperature by heating and cooling conversion according to the sensed room temperature, and variable control on / off time of the compressor so that the one cycle is completed within a certain time, Time conversion control that completes one cycle within a certain time during dry operation prevents overcooling of the room temperature. The heating function increases the indoor temperature to a certain temperature by improving the dehumidification efficiency while maintaining the indoor temperature at a constant temperature (23 ~ 25 ℃), thereby keeping the indoor space in a comfortable state to give the user a feeling of comfort.

Description

Dry operation device of air conditioner and control method

The present invention relates to an air conditioner for performing a heating and cooling operation, and in particular, the dry operation apparatus of the air conditioner to remove only moisture while maintaining the room temperature at a constant temperature (23 ~ 25 ℃) by switching the heating and cooling according to the room temperature and its It is about a method.

In general, an air conditioner includes a heating device that warms indoor cold air and supplies it to a room, and a cooling device that supplies cold indoor hot air to a room.

In addition, there is also a cooling and heating device that combines the cooling function and the heating function, a situation that includes a clean function for cleaning the contaminated indoor air.

FIG. 1 shows an indoor unit of an air conditioner (commonly referred to as an air conditioner) that performs an air conditioning function among the air conditioners described above.

Of course, the air-conditioning device of course includes an outdoor unit not shown.

As shown in FIG. 1, reference numeral 1 denotes an indoor main body (hereinafter, referred to as an indoor unit) of an air conditioner, and an inlet 3 for sucking indoor air is formed on the front of the indoor unit 1, In the lower part of the front surface of the indoor unit 1, a discharge port 5 for discharging air (cold or warm air) heat-exchanged by an indoor heat exchanger to be described later is formed.

On the right side of the discharge port 5, a remote control signal receiver 7 for receiving a remote control signal transmitted from a remote controller 9 (hereinafter referred to as a remote controller) is provided, and the discharge port 5 is provided with the discharge port 5 Up and down wind vane 11 for adjusting the direction of the air discharged into the room through the () and the left and right wind vane 13 for adjusting the left and right are installed.

On the other hand, the remote control 9, the operation / stop of the air conditioner, operation selection (automatic, cooling, dehumidification, blowing, heating, etc.), air volume selection (strong wind, weak wind, breeze, etc.), turbo, mild, temperature control, etc. A plurality of operation mode keys for input and a plurality of timer mode keys for inputting a current time, a simple reservation, a start / end reservation, and the like are provided.

FIG. 2 is a side cross-sectional view of the indoor unit of FIG. 1 in a state where the indoor unit is installed on a wall, and the same parts as in FIG.

As shown in FIG. 2, the inside of the indoor unit 1 has a straight shape at the rear side of the intake port 3 so as to heat-exchange the indoor air sucked through the intake port 3 to cold or warm air by the latent heat of evaporation of the refrigerant. An indoor heat exchanger (15) is installed, and at the rear lower portion of the indoor heat exchanger (15), the air is sucked into the indoor air through the intake port (3) and at the same time, the air heat exchanged in the indoor heat exchanger (15) is discharged. An indoor fan 17 for discharging into the room through (5) is provided.

In addition, a duct member 19 is installed inside the indoor unit 1 to guide the flow of air sucked through the suction port 3 and discharged to the discharge port 5.

On the other hand, reference numeral 21 is an evaporated water dish.

When the air conditioner configured as described above is an inverter air conditioner that is also used for both heating and cooling, the four-way valve 31 is turned on during heating so that the refrigerant is shown by a dotted line in FIG. 3. → indoor heat exchanger (15) → capillary tube (50) → outdoor heat exchanger (40) → four-way valve (31) → compressor (30).

On the other hand, during cooling, the four-way valve 31 is turned off, so that the refrigerant is shown by the solid line of FIG. 3, and the compressor 30 → four-way valve 31 → outdoor heat exchanger 40 → capillary tube 50 → indoor heat exchange. 15 to the four-way valve 31 → compressor 30 in order to circulate.

At this time, the four-way valve 31 adjusts the flow path so that the refrigerant circulates in a solid line when off, and adjusts the flow path so that the refrigerant circulates in a dotted line when on.

In the above-described air conditioning and air conditioner, the user operates the remote controller 9 to press the operation / stop key (hereinafter referred to as the operation key), and then the desired operation mode (for example, cooling) and the set temperature (Ts). When the set air volume is input, the remote control signal corresponding to the key input is encoded by a predetermined protocol, and the coded signal is transmitted by modulating the infrared signal.

When the infrared signal is transmitted from the remote control unit 9, the remote control signal receiving unit 7 of the indoor unit 1 receives it, converts it into an electric signal, and demodulates the converted electric signal to start operation of the indoor unit 1. First, the indoor fan 17 rotates according to the set air volume, and the indoor air starts to be sucked into the indoor unit 1 through the suction port 3.

At this time, when the temperature of the indoor air sucked through the suction port 3 is detected by a temperature sensor (not shown) in the indoor unit 1, the indoor unit 1 transmits the set temperature Ts and the room temperature transmitted from the remote controller 9. When the indoor temperature Tr is higher than the set temperature Ts by comparing the Tr, the operating frequency of the compressor 30 is determined according to the difference between the indoor temperature Tr and the set temperature Ts. Drive it.

When the compressor 30 is driven, the refrigerant cycle is made in the solid arrow direction of FIG. 3 as the four-way valve 31 is turned off. The high-temperature, high-pressure gas refrigerant discharged from the compressor 30 of the outdoor unit is the four-way valve 31. When the outdoor heat exchanger (40) is introduced into the outdoor heat exchanger (40), the outdoor heat exchanger (40) exchanges the gas refrigerant compressed at high temperature and high pressure with air blown by the outdoor fan (41), forcibly cools it, and condenses it. The low temperature and high pressure liquid refrigerant condensed in the heat exchanger 40 flows into the capillary tube 50.

The low temperature and high pressure liquid refrigerant introduced into the capillary tube 50 is expanded into a low temperature low pressure free refrigerant which is easy to evaporate, and flows into the indoor heat exchanger 15 installed in the indoor unit 1, and the refrigerant in the indoor heat exchanger 15. When the evaporation is evaporated to take the heat from the air blown by the indoor fan 17 to cool the indoor air.

The cold air heat exchanged by the indoor heat exchanger (15) performs cooling operation while the wind direction is adjusted up or down or left and right according to the wind direction angle of the up and down wind direction blades 11 and the left and right wind direction wings 13 installed in the discharge port 5, The low temperature and low pressure gas refrigerant cooled in the indoor heat exchanger (15) flows back into the compressor (30) through the four-way valve (31) and is converted into a high temperature and high pressure refrigerant gas by the adiabatic compression action of the compressor (30). Repeat the refrigerant cycle.

On the other hand, during heating operation, if the set temperature (Ts) is compared with the room temperature (Tr) and the set temperature (Ts) is higher than the room temperature (Tr), the compressor depends on the difference between the room temperature (Tr) and the set temperature (Ts). The operating frequency of the 30 is determined to drive the compressor 30.

When the compressor 30 is driven, a refrigerant cycle is made in the direction of the dotted arrow of FIG. 3 according to the ON of the four-way valve 31. The high-temperature, high-pressure gas refrigerant discharged from the compressor 30 of the outdoor unit is the four-way valve 31. Inflow into the indoor heat exchanger (15), the indoor heat exchanger (15) as the air blown by the indoor fan (17) by heat exchanged with the coolant or air at room temperature to cool the refrigerant at room temperature and high pressure The warmed air (hot air) is discharged into the room through the discharge port 5 to perform the heating operation.

The refrigerant liquefied in the indoor heat exchanger (15) expands under reduced pressure into a free low-temperature free refrigerant which is easy to evaporate through the capillary tube (50) and flows into the outdoor heat exchanger (40), and the low temperature low pressure in the outdoor heat exchanger (40). The free refrigerant of heat exchanged by the air blown by the outdoor fan 41 to cool, and the low-temperature low-temperature gas refrigerant cooled in the outdoor heat exchanger 40 flows back into the compressor 30 through the four-way valve 31. By the adiabatic compression action of the compressor 30 is converted into a refrigerant gas of high temperature and high pressure to repeat the refrigerant cycle described above.

In the air conditioner functioning as a cooling and heating function by the refrigerant cycle described above, if the user selects the dehumidification mode by operating the remote controller 9, the cooling and dehumidification operation is the same as the refrigerant cycle of the cooling operation until the set temperature is reached. Operation mode for lowering only the air volume of the fan), and as shown in FIG. 4, the indoor fan 17, the outdoor fan 41, the four-way valve 31, and the compressor 30 are 53 as shown in FIG. 4. Carry out heating dehumidifying operation that runs along a certain pattern by 1 cycle.

By the way, in the conventional dehumidification control, as shown in FIG. 4 according to the load of the internal space, the PPD (Predicted) which expresses the comfort feeling which a user feels as a constant by overheating and supercooling control of room temperature. The Percentage Of Dissatisfied Index is quite high, causing a user to be offended.

Accordingly, the present invention has been made to solve the above-described problems, and prevents overcooling of the room temperature by time conversion control to complete one cycle within a predetermined time during dry operation, and adds a heating function during overcooling. The purpose of this invention is to provide a dry operation device and a control method of the air conditioner that maintains the indoor space in a comfortable state by improving the dehumidification efficiency while maintaining the indoor temperature at a constant temperature (23 ~ 25 ℃) by raising the temperature to a certain temperature. There is this.

In order to achieve the above object, the dry operation apparatus of an air conditioner according to the present invention performs a cooling operation by circulating a refrigerant in the order of a compressor, an outdoor heat exchanger, a capillary tube, and an indoor heat exchanger, and circulates the refrigerant by the reverse cycle of the cooling operation. An operating apparatus of an air conditioner for heating operation, comprising: a four-way valve for converting a refrigerant flow to convert the cooling operation to a heating operation, an indoor temperature sensing means for sensing an indoor temperature, and the indoor temperature sensing means; By controlling the dry operation until the completion of one cycle to reach the set temperature by heating and cooling conversion according to the sensed room temperature, and the control means for variable control on / off time of the compressor to complete the one cycle within a certain time It features.

In addition, the dry operation control method of the air conditioner according to the present invention performs the cooling operation by circulating the refrigerant in the order of the compressor, the outdoor heat exchanger, the capillary tube and the indoor heat exchanger, and circulates the refrigerant by the reverse cycle of the cooling operation to perform the heating operation. A method of operating an air conditioner, comprising: a signal judging step of judging whether a dry driving signal is inputted from a driving operation means, and cooling, blowing, and heating according to a change in an indoor temperature when a dry driving signal is input at the step of judging the signal. A dry control step of controlling the dry operation to the completion of one cycle of reaching the set temperature while maintaining the room temperature at a constant temperature; and by counting the one cycle execution time to complete the one cycle within a predetermined time, Characterized in that it consists of a time control step of variable control on / off time.

1 is a perspective view showing an indoor unit of a general air conditioner.

FIG. 2 is a side cross-sectional view of the indoor unit of FIG. 1 mounted on a wall; FIG.

3 is a refrigerant cycle diagram of a general air conditioner.

4 is a dry driving pattern area diagram of a conventional air conditioner.

5 is a control block diagram of a dry operation apparatus of an air conditioner according to an embodiment of the present invention.

6 is a flowchart showing a dry operation operation procedure of the air conditioner according to the present invention.

7 is a flowchart showing a dry control operation procedure of the air conditioner according to the present invention.

8 is a flowchart showing a time conversion control operation procedure of the air conditioner according to the present invention.

9 is a dry driving pattern area diagram of an air conditioner according to the present invention.

10 is a time pattern diagram of an air conditioner according to the present invention.

<Explanation of symbols for main parts of drawing>

1: indoor unit 5: discharge port

7: Remote control signal receiver 9: Remote control

11: up and down wind vane 13: left and right wind vane

15: indoor heat exchanger 17: indoor fan

30 compressor 31 four-way valve

40: outdoor heat exchanger 41: outdoor fan

152: operation operation means 154: control means

156: room temperature sensing means

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

Since the air conditioner according to the present invention is the same as the conventional configuration shown in Figs. 1 to 3, the same name and the same reference numeral are specified to omit overlapping description.

As shown in FIG. 5, the power supply means 150 converts a commercial AC voltage supplied from an AC power supply terminal (not shown) into a predetermined DC voltage required for the operation of the air conditioner, and outputs the same. Has a plurality of function keys for inputting the operation mode (automatic, cooling, dry, blowing, heating, etc.) of the air conditioner, the set air volume, the set wind direction, the set temperature (Ts), and the start / stop of the air conditioner. The driving operation means 152 is a remote control signal for receiving an infrared signal transmitted from the remote control 9 according to the key input unit 153 provided on the control panel of the indoor unit 1 and the key operation of the remote control 9. The receiver 7 is comprised.

In addition, the control means 154 is a water for initializing the air conditioner by receiving a DC voltage output from the power supply means 150, and according to the operation selection signal inputted by the operation control means 152 of the air conditioner. As a microcomputer for controlling the overall operation, this control means 154 performs cooling and heating operations by controlling the on / off time of the compressor 30 by a time conversion control that allows one cycle to be completed within a predetermined time during dry operation. do.

The indoor temperature detecting means 156 controls the indoor temperature to a temperature Ts set by the user by the driving operation means 152 to suck the indoor air 10 into the indoor unit 10 to perform the cooling and heating operation of the air conditioner. Detects the temperature Tr, and the indoor pipe temperature detecting means 158 passes through the pipe temperature of the indoor heat exchanger 15 that changes during the dry operation of the air conditioner, that is, through the indoor heat exchanger 15. The coolant temperature is sensed and output to the control means 9154.

In addition, the wind direction control means 160 is to adjust the direction of the air discharged through the discharge port 5 up and down and left and right, this wind direction control means 160 receives a pulse signal output from the control means 154 Up and down wind direction control unit 162 for driving the up and down wind stepping motor 163 to move the up and down wind vane 11, the pulse signal output from the control means 154 to receive the left and right wind vane 13 to move. The left and right wind direction control unit 164 for driving the left and right stepping motor 165 is configured.

The compressor driving means 166 may control the control means according to the difference between the temperature Ts set by the user by the driving operation means 152 and the room temperature Tr sensed by the room temperature sensing means 156. Receiving the control signal output from the 154 to control the drive of the compressor 30, the outdoor fan motor driving means 168 is the temperature Ts set by the user by the driving operation means 152 and the indoor temperature sensing means Rotation of the outdoor fan motor to receive the control signal output from the control means 154 according to the difference of the room temperature (Tr) sensed by the 156 and blow the air heat-exchanged in the outdoor heat exchanger 40 to the outside The number is controlled to drive control the outdoor fan 41.

In addition, the indoor fan motor driving means 170 receives the control signal output from the control means 154 according to the air volume set by the user by the operation operation means 152 is heat exchanged in the indoor heat exchanger (15) By controlling the rotation speed of the indoor fan motor to blow air (cold or warm air) into the room, the indoor fan 17 is driven and controlled, and the four-way valve driving means 172 is driven by the driving operation means 152. The four-way valve 31 is controlled on / off by receiving a control signal output from the control means 154 so as to convert the flow of the refrigerant according to a condition (cooling or heating).

Also, in the drawing, the display means 174 displays the operation selection mode (automatic, cooling, dry, blowing, heating, etc.) input by the driving operation means 152 under the control of the control means 154. Of course, the operating state of the air conditioner.

Hereinafter, the operational effects of the dry operation apparatus and the control method of the air conditioner configured as described above will be described.

6 is a flowchart showing a dry operation operation procedure of the air conditioner according to the present invention, in which S denotes a step (STEP).

First, when power is applied to the air conditioner, the power supply unit 150 converts a commercial AC voltage supplied from an AC power terminal (not shown) into a predetermined DC voltage required for driving the air conditioner, thereby driving each circuit and control means ( 154).

Therefore, in step S1, the DC voltage output from the power supply means 150 is received by the control means 154 to initialize the air conditioner.

At this time, when the user operates the key input unit 153 or the remote controller 9 and presses the operation key, and inputs the operation mode (eg, health dry), the set temperature (Ts), and the set air volume of the desired air conditioner, The remote controller 9 encodes a remote control signal corresponding to a key input by a predetermined protocol, modulates the encoded signal and transmits an infrared signal.

When the infrared signal is transmitted from the remote control unit 9, the remote control signal receiving unit 7 of the indoor unit 1 receives it and converts it into an electric signal, and demodulates the converted electric signal to control the operation selection signal and the operation start signal. Input to the means 154.

Accordingly, in step S2, the control means 154 determines whether the driving signal is input from the driving operation means 152, and maintains the air conditioner in the operating standby state when the driving signal is not input (NO). The operation of step S2 and below is repeated.

As a result of the discrimination in step S2, when a driving signal is input (YES), the control means 154 goes to step S3 and the driving signal input through the key input unit 153 or the remote control signal receiver 7 is healthy. It determines whether it is dry operation (hereinafter referred to as dry operation), and returns when it is not dry operation (NO).

As a result of the discrimination in step S3, in the case of dry operation (YES), the control means 154 changes the room temperature within a comfortable temperature range (23-25 ° C, 24-26 ° C). By controlling the healthy dry operation so that the room temperature is not too cold or hot, this will be described in detail with reference to FIG.

7 is a flowchart showing a dry control operation procedure of the air conditioner according to the present invention.

As initial conditions for explaining the operation of the present invention, FCOOL, FFAN, FHEAT, CYCLE initial values are zero.

When the air conditioner enters the healthy dry control, in step S41, the control means 154 determines whether the value of FCOOL is 1, and if the value of FCOOL is not 1 (if NO), the flow advances to step S412 and the temperature of the indoor air. (Tr) is sensed by the room temperature detecting means 156 to determine whether the room temperature Tr has reached the set temperature Ts.

As a result of the discrimination in step S412, when the room temperature does not reach the set temperature (NO), the flow advances to step S413, where the control means 154 includes a compressor drive means 166, an outdoor fan motor drive means 168, As shown in FIG. 9, the four-way valve driving means 172 and the indoor fan motor driving means 170 are controlled to turn on the compressor 30 and the outdoor fan 41 and to turn off the four-way valve 31. Returning while performing the cooling operation of turning on the fan 17 to the difficult dehumidification wind (ultra low speed wind lower than the driving wind speed), and when the room temperature reaches the set temperature (YES), the flow advances to step S414 to indicate the FCOOL value. Returns with 1 set.

As a result of the determination in step S41, if the value of FCOOL is 1 (YES), the flow advances to step S42, and the control means 154 determines whether the value of FFAN is 1, and if the value of FFAN is not 1 ( If NO), the flow advances to step S422 and the control means 154 counts the time to determine whether the predetermined time (about 5 minutes) has elapsed.

As a result of the discrimination in step S42, when 5 minutes have not elapsed (NO), the flow advances to step S423 and the control means 154 includes a compressor drive means 166, an outdoor fan motor drive means 168, and a four-way valve drive means. 172, the indoor fan motor driving means 170 is controlled to turn off the compressor 30, the outdoor fan 41, and the four-way valve 31, as shown in FIG. Returning is performed while performing the blowing operation to turn on the dehumidifying wind. If 5 minutes have elapsed (YES), the initial blowing operation is completed, and the flow returns to step S424, where the value of FFAN is set to 1 and returned.

As a result of the discrimination in step S422, if the value of FFAN is 1 (YES), the flow advances to step S43 and the control means 154 determines whether the value of FHEAT is 1, and the value of FHEAT is not 1 ( If NO), the process proceeds to step S432 and after the indoor temperature reaches the set temperature, the indoor air temperature detecting means 156 detects the temperature of the indoor air that changes according to the initial blowing operation to determine whether the indoor temperature is 25 ° C. or higher. .

As a result of the discrimination in step S432, if the room temperature is not 25 DEG C or more (NO), the flow advances to step S433, and the control means 154 counts the time to determine whether a predetermined time (about 5 minutes) has elapsed. If 5 minutes have not elapsed (NO), the control means 154 moves to the compressor driving means 166, the outdoor fan motor driving means 168, the four-way valve driving means 172, and the indoor fan motor. As shown in FIG. 9, the drive unit 170 is controlled to turn on the compressor 30, the outdoor fan 41, and the four-way valve 31, and the heating operation to turn on the indoor fan 17 in a difficult dehumidification wind. When the room temperature reaches 25 deg. C (26 deg. C) during the blowing operation, the heating operation in the section 1 shown in Fig. 9 is ignored.

When 5 minutes have passed (YES), the determination result in step S433 indicates that the initial heating operation is completed after the set temperature has been reached, and the determination result in step S432 indicates that the room temperature is 25 ° C or higher (YES). Is not required to perform the heating operation, the process returns to step S435 and the FHEAT value is set to 1 to return.

As a result of the discrimination in step S43, when the value of FHEAT is 1 (YES), the flow advances to step S44 and the control means 154 determines whether the value of CYCLE is 1, and the value of CYCLE is 1 (YES). In this case), the control means 154 returns to step S45 while setting the values of FFAN, FHEAT and CYCLE to zero.

As a result of the determination in step S44, if the value of CYCLE is not 1 (NO), the flow advances to step S442 to determine whether the compressor 30 is off time, and if the compressor 30 is off time (YES). In step S446, the control means 154 controls the compressor driving means 166, the outdoor fan motor driving means 168, the four-way valve driving means 172, and the indoor fan motor driving means 170, as shown in FIG. As described above, the compressor 30, the outdoor fan 41, and the four-way valve 31 are turned off and returned while performing the blowing operation for turning on the indoor fan 17 with the difficult dehumidification wind.

As a result of the discrimination in step S442, if it is not the compressor 30 off time (NO), the flow advances to step S443 to determine whether the room temperature has reached the set temperature, and if the room temperature has not reached the set temperature ( NO), the control means 154 controls the compressor driving means 166, the outdoor fan motor driving means 168, the four-way valve driving means 172, and the indoor fan motor driving means 170. As shown in FIG. 9, the compressor 30 and the outdoor fan 41 are turned on, the four-way valve 31 is turned off, and the indoor fan 17 is turned on in a difficult dehumidification wind (ultra low speed wind lower than the driving wind speed). Return while performing cooling operation.

As a result of the determination in step S443, when the indoor temperature reaches the set temperature (YES), one cycle (the time of one cycle is variable), which is a process to reach the set temperature, is completed. Going to S445 and returning while setting the value of CYCLE to 1, the time of sections ②, ③, ④, and ⑤ shown in FIG. 9, which is the cooling operation time at this time, may be at least 1 to 5 minutes depending on the room temperature. One cycle is complete when fluid and set temperature is reached.

As described above, when one cycle of alternately performing the cooling, heating, and blowing operations according to the room temperature and the off time of the compressor 30 is completed, the process proceeds to step S5 of FIG. In order to complete the cycle, if one cycle completion time is less than or exceeding a predetermined time, the time conversion is controlled so as to come within a predetermined time by varying the time pattern, which will be described in detail with reference to FIG. 8.

8 is a flowchart showing the operation procedure of the time conversion control of the air conditioner according to the present invention.

As an initial condition for explaining the operation of the present invention, the initial value of the time pattern is four steps.

When one cycle of healthy dry operation of the air conditioner is completed, in step S51, the control means 154 determines whether the value of CYCLE is 1, and returns if the value of CYCLE is not 1 (NO).

As a result of the discrimination in step S51, if the value of CYCLE is 1 (YES), the flow advances to step S52, and the control means 154 determines whether the one cycle execution time is less than one hour, and the one cycle execution time is one. If it is less than the time (YES), the flow advances to step S522, and the control means 154 moves the time pattern one step to the left as shown in FIG. 10 from the current pattern (to the left with respect to the initial four steps). To return while varying the on / off time of the compressor (30).

As a result of the determination in step S52, if the one cycle execution time is not less than one hour (NO), the process proceeds to step S53 and the control means 154 determines whether the one cycle execution time is less than one hour and thirty minutes, If it is not less than one hour and thirty minutes (NO), the flow advances to step S54, whereby the control means 154 moves the time pattern one step to the right as shown in FIG. Center to the right) to return while varying the on / off time of the compressor 30.

As a result of the discrimination in step S53, when one cycle execution time is less than 1 hour and 30 minutes (YES), the flow advances to step S532 and the control means 154 returns while maintaining the time pattern in the current pattern state.

As such, as shown in FIG. 9, the indoor temperature is controlled by a time conversion control for switching the heating / cooling according to the change of the indoor temperature and completing one cycle within a predetermined time, as shown in FIG. 9. The PPD index (unsatisfaction) is low, as shown in Fig. 9, so as to keep the range in a comfortable state, thereby giving the user a feeling of comfort.

According to the dry operation apparatus and control method of the air conditioner according to the present invention as described above, the time conversion control to complete one cycle within a predetermined time during the dry operation to prevent overcooling of the room temperature, By adding a heating function to increase the indoor temperature to a certain temperature to maintain the room temperature at a constant temperature (23 ~ 25 ℃) to improve the dehumidification efficiency of the cooling bottle due to the overcooling of the room temperature that can occur during conventional cooling or dehumidification operation Prevents colds and maintains indoor spaces in a pleasant state, giving comfort to the user.

Claims (5)

In the operation unit of an air conditioner in which a refrigerant is circulated in the order of a compressor, an outdoor heat exchanger, a capillary tube, and an indoor heat exchanger to perform a cooling operation, and a refrigerant is circulated in a reverse cycle of the cooling operation to perform a heating operation. Four-way valve for converting the cooling operation into a heating operation, an indoor temperature sensing means for sensing an indoor temperature, and one cycle of reaching a set temperature by converting heating and cooling according to the indoor temperature detected by the indoor temperature sensing means. Drying control device for controlling the dry operation, and the control unit for controlling the on / off time of the compressor so that the one cycle is completed within a predetermined time. A method of operating an air conditioner in which a refrigerant is circulated in the order of a compressor, an outdoor heat exchanger, a capillary tube, and an indoor heat exchanger to perform a cooling operation, and a refrigerant is circulated in a reverse cycle of the cooling operation to perform a heating operation. A signal discrimination step of determining whether an operation signal is input and a dry operation signal are input at the signal discrimination step, thereby cooling, blowing, and heating operation according to the change of the indoor temperature to maintain the indoor temperature at a predetermined temperature and reaching the set temperature. And a dry control step of controlling the dry operation until the completion of one cycle, and a time control step of variably controlling the on / off time of the compressor by counting the one cycle execution time so that the one cycle is completed within a predetermined time. Dry operation control method of air conditioner. The dry operation of the air conditioner according to claim 2, wherein the time control step increases the on time of the compressor in the current time pattern and decreases the off time of the compressor when the one cycle execution time is less than one hour. Control method. The method of claim 2, wherein the time control step maintains a current time pattern when one cycle execution time is 1 hour or more and less than 1 hour 30 minutes. The air conditioner of claim 2, wherein the time control step reduces the on time of the compressor in the current time pattern and increases the off time of the compressor when the one cycle execution time is 1 hour 30 minutes or more. Dry operation control method.

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