KR100239575B1 - 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 device 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; Controls the dry operation to the completion point of one cycle that reaches the set temperature by cooling and heating according to the detected room temperature, and controls the on / off time of the compressor so that the one cycle is completed within a predetermined time while the room temperature is constant temperature. If it is higher, it consists of a control means for variable control of the air volume by increasing the speed of the indoor fan, a certain time during dry operation Time conversion control to complete one cycle at a time and variable air volume control according to room temperature prevents overcooling of the room temperature.In case of overcooling, it adds heating function and raises the room temperature to a certain temperature. ~ 25 ℃) while improving the dehumidification efficiency, keeping the indoor space in a comfortable state gives a 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 has the discharge port ( 5) Up and down wind vane 11 for adjusting the direction of the air discharged into the room through up and down and 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 provided, and the rear side lower portion of the indoor heat exchanger (15) sucks indoor air through the suction port (3) and at the same time receives the air heat exchanged in the indoor heat exchanger (15). Indoor fan (1) for discharging into the room through the discharge port (5)

7) is installed.

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 at the time of heating, and the refrigerant is switched from the compressor 30 to the four-way valve 31, as shown by the 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, when cooling, the four-way valve 31 is turned off, so that the refrigerant is shown in the solid line of FIG. 3. The compressor 30 → four-way valve 31 → outdoor heat exchanger 40 → capillary tube 50 → indoor heat exchange. 15 to → 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 encoded signal is modulated to transmit an infrared signal.

When the infrared signal is transmitted from the remote controller 9, the remote controller signal receiver of the indoor unit 1

7) receives the signal and converts it into an electric signal, and demodulates the converted electric signal to start the operation of the indoor unit 1. First, the indoor fan 17 is rotated according to the set air volume, and the room is opened through the intake port 3. Air starts to be sucked into the indoor unit 1.

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, in heating operation, the set temperature (Ts) is compared with the set temperature (Ts) and the room temperature (Tr).

) Is higher than room temperature (Tr) depending on the difference between room temperature (Tr) and 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 large / decreased load of the internal space, the room temperature is controlled to be overheated and supercooled, and PPD (Predicted) expresses the comfort level felt by the user as a constant. The Percentage of Dissatisfied index was quite high, causing the user to be offended.

Accordingly, the present invention has been made to solve the above-mentioned problems, and prevents the overcooling of the room temperature by the time conversion control and the variable air volume control according to the room temperature to complete one cycle within a predetermined time during dry operation, In the case of supercooling, by adding a heating function, the indoor temperature is raised to a certain temperature to maintain the indoor temperature at a constant temperature (23 ~ 25 ℃) while improving the dehumidification efficiency. And a control method thereof.

In order to achieve the above object, the dry operation place of the 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 device 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; Drying is controlled according to the detected room temperature to control the dry operation until the completion of one cycle to reach the set temperature, and the on / off time of the compressor is variably controlled so that the one cycle is completed within a predetermined time while the indoor temperature is a constant temperature. If it is higher, characterized in that the control means for increasing the speed of the indoor fan variable control the air volume .

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, A time control step of variablely controlling the on / off time, and if the room temperature is higher than a predetermined temperature, By increasing the speed of the fan characterized by consisting of a flow rate controlling step of increasing the cooling capacity.

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 flowchart showing a flow rate variable control operation procedure according to the present invention.

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

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

<Explanation of symbols for major parts of drawings>

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.

And, the control means 154 is applied to the DC voltage output from the power supply means 150 to initialize the air conditioner, as well as the air conditioner according to the operation selection signal input by the operation operation means 152 As a microcomputer that controls the overall operation of the control means 154, the control means 154 controls the on / off time of the compressor 30 by time conversion control to complete one cycle within a predetermined time during dry operation, Indoor fan

The airflow control in (17) increases the cooling capacity.

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 154.

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 stepping motor 163 to move the up and down wind vane 11

Up and down wind direction control unit 162 for driving the left and right wind direction control unit for driving the left and right stepping motor 165 to receive the pulse signal output from the control means 154 and the left and right wind vane 13 ( 164).

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. In response to the control signal output from 154, the compressor 30 is driven and controlled, and the outdoor fan motor driving means 168 is a 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 By controlling the number of outdoor fans (41

Drive control.

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).

In addition, 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.

FIG. 6 is a flow chart showing a dry operation operation procedure of the air conditioner according to the present invention. In FIG. 6, S denotes a step.

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

Therefore, in step S1, the DC voltage output from the power supply means 150 is input 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 controller 9, the remote controller signal receiver of the indoor unit 1

7) it is received and converted into an electrical signal, and the operation selection signal and the operation start signal are input to the control means 154 by demodulating the converted electrical signal.

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

As a result of the discrimination in step S2, when the driving signal is input (YES), the control unit 154 proceeds to step S3, whereby 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 (NO), the process proceeds 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 and the control means 154 includes a compressor drive means 166, an outdoor fan motor drive means 168, As shown in FIG. 10, 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 to turn on the fan 17 to the difficult dehumidification wind (ultra low speed wind lower than the driving wind speed). If the room temperature reaches the set temperature (YES), the process proceeds to step S414 and the value of FCOOL is reached. Returns with 1 set.

As a result of the discrimination 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 S422, if 5 minutes have not elapsed (NO), the flow advances to step S423 and the control means 154 includes the compressor drive means 166, the outdoor fan motor drive means 168, and the 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 for turning on the dehumidifying wind. If 5 minutes have elapsed (YES), the initial blowing operation is completed, and the flow returns to step S424 and returns while setting the value of FFAN to 1.

As a result of the discrimination in step S42, when the value of FFAN is 1 (YES), the control means 154 determines whether the value of FHEAT is 1, and when the value of FHEAT is not 1 (if YES). If NO), the process proceeds to step S432 and after the indoor temperature reaches the set temperature, the indoor 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 proceeds 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 driving. By controlling the means 170, as shown in FIG. 10, the compressor 30, the outdoor fan 41, and the four-way valve 31 are turned on, and the heating operation for turning on the indoor fan 17 with the difficult dehumidification wind is performed. When the room temperature reaches 25 ° C. (26 ° C.) during the blowing operation, the heating operation that is the section 1 shown in FIG. 10 is ignored.

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

As a result of the discrimination in step S43, if 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 determination 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. 10, 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. One cycle is complete when fluid and set temperature is reached.

As described above, when one cycle of alternately performing 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.

Upon completion of one cycle of healthy operation of the air conditioner, 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 determination in step S51, when 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 process proceeds to step S522, and the control means 154 moves the time pattern one step to the left (as shown in FIG. 11) from the current pattern to the left. To return while varying the on / off time of the compressor (30).

As a result of the discrimination 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 1 hour 30 minutes (NO), the process proceeds 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 determination in step S53, when one cycle execution time is less than 1 hour 30 minutes (Y

In case of ES), the control means 154 returns to step S532 while maintaining the time pattern in the current pattern state.

As described above, if one cycle is completed within a predetermined time by variably controlling the on / off time of the compressor 30 according to one cycle execution time, the control means 154 proceeds to step S6 of FIG. When the temperature is higher than about 25 ° C., the speed of the indoor fan 17 is increased to variably control the air volume, which will be described in detail with reference to FIG. 9.

Fig. 9 is a flowchart showing the operation procedure of the air volume variable control of the air conditioner according to the present invention.

When one cycle is completed within a predetermined time, in step S61, the control means 154 determines whether the room temperature is above a certain comfort temperature (about 25 ° C), and if the room temperature is not more than 25 ° C (NO). In step S62, the control means 154 controls the indoor fan motor driving means 170 to return while driving the speed of the indoor fan 17 in a super breeze.

As a result of the discrimination in step S61, if the room temperature is 25 ° C or more (YES), the control means 154 controls the indoor fan motor driving means 170 to increase the speed of the indoor fan 17. By driving with a breeze to increase the speed of the indoor fan 17 (for example, a super breeze to a breeze), it returns while increasing the cooling capacity.

As described above, the room temperature is controlled by the time conversion control and the airflow variable control according to the room temperature so as to switch the cooling and heating according to the change of the room temperature and complete one cycle within a predetermined time. 25 ° C, 24 ~ 26 ° C), so that the PPD index (unsatisfaction) is low, as shown in FIG. 10, to provide a comfortable feeling to the user.

According to the dry operation apparatus and the control method of the air conditioner according to the present invention as described above, the indoor temperature by the time conversion control and the air volume variable control according to the room temperature to complete one cycle within a predetermined time during the dry operation It prevents over-cooling and improves the dehumidification efficiency while maintaining the room temperature at a certain temperature (23 ~ 25 ℃) by adding heating function during supercooling, which can occur during existing cooling or dehumidification operation. It prevents cooling bottles, colds, etc. due to the overcooling of the room temperature, and maintains the indoor space in a pleasant state, thereby providing 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. The four-way valve for converting the cooling operation to the heating operation, the indoor temperature sensing means for detecting the indoor temperature, and the heating and heating conversion according to the indoor temperature detected by the indoor temperature sensing means until one cycle completion time is reached. It is made of a control means for controlling the dry operation, and variable control of the air volume by increasing the speed of the indoor fan when the indoor temperature is higher than the predetermined temperature while controlling the on / off time of the compressor so that the one cycle is completed within a certain time Dry operation apparatus of the air conditioner characterized in that. 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, and thus cooling, blowing, and heating operation are performed according to a change in the indoor temperature to maintain the indoor temperature at a predetermined temperature and reach a set temperature. A dry control step of controlling the dry operation until the completion of one cycle, a time control step of variably controlling the on / off time of the compressor by counting one cycle execution time so that the one cycle is completed within a predetermined time, and room temperature Is higher than a predetermined temperature, the air volume control step of increasing the cooling capacity by increasing the speed of the indoor fan Dehumidifying operation control method of an air conditioner, characterized in that formed. 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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