KR20180007381A - Control method of air conditioner - Google Patents

Abstract

The purpose of the present invention is to provide a control method of an air conditioner, enabling a user to feel comfortable in the shortest period of time by determining a priority for all conditions of a comfortable indoor environment that the user needs and sequentially controlling an air conditioner depending on the determined priority. To achieve the purpose of the present invention, the control method of an air conditioner, which controls an environment of indoor air by detecting at least two environmental conditions among a plurality of indoor environmental conditions, comprises: a) a step in which a control unit determines if the detected at least two environmental conditions satisfy references, respectively; and b) a step in which if the at least two environmental conditions do not satisfy the references, respectively, the control unit determines a priority between the environmental conditions, and controls a reference of an environmental condition with a high priority to be satisfied first.

Description

{CONTROL METHOD OF AIR CONDITIONER}

The present invention relates to a control method of an air conditioner, and more particularly, to a control method of an air conditioner in which a plurality of indoor environmental conditions are prioritized and controlled in sequence.

Generally, an air conditioner is a device that adjusts room temperature and humidity according to a user's request, or keeps the room pleasant by ventilating the room air.

In recent years, various technologies such as dehumidification, humidification, cooling, heating, air purification, ventilation and the like have been added to the air conditioner to develop a technique for keeping indoor air pleasantly according to seasonal changes according to the user's selection.

Such an air conditioner includes a humidifier for increasing the humidity of the indoor air and a dehumidifier for reducing the humidity of the indoor air. In addition, the indoor air cooling / heating function and the function of ventilating indoor air are implemented as a separate device as a cooling / heating device or a ventilation device, or as a device combined with either a dehumidifier or a humidifier.

Therefore, in order to implement humidification, dehumidification, cooling and heating, air purification and ventilation in a single device, it must be made into a complicated structure, which makes it difficult to put it into practical use.

Korean Patent No. 10-0943356 "Four Seasons Ventilating & Air-Conditioning Equipment" and Korean Patent Laid-Open Publication No. 2001-0111601 disclose "an air conditioning system having an indoor dehumidification system and an indoor humidification system and a method for controlling the operation thereof " .

On the other hand, the factor that determines the indoor air quality may be temperature / humidity / odor / fine dust. When all of the above elements are satisfied, the user who lives in the room can feel the best comfort. However, there is a problem that it is difficult for the user to feel the comfort quickly because the control of the air conditioner, the humidifier, and the ventilation can not be performed at the same time in one apparatus.

Also, there is a problem in that, if one of the control modes is firstly selected and the air conditioner is operated, if the user first controls the room air condition, which is relatively less sensitive, the user can not provide comfort to the user quickly .

SUMMARY OF THE INVENTION The present invention has been devised to solve the above-described problems, and it is an object of the present invention to provide a system and method for providing a user with a comfortable environment in which a user can feel comfort in a shortest time by prioritizing all conditions of a comfortable indoor environment required by a user, And a control method of the air conditioner.

In order to achieve the above object, a control method of an air conditioner according to the present invention is a control method of an air conditioner for controlling an environment of indoor air by detecting at least two environmental conditions among a plurality of indoor environmental conditions, Determining by the control unit whether each of the two or more detected environmental conditions meets the criterion; and b) when the two or more environmental conditions are out of the respective standards, the control unit judges the priority among the environmental conditions and controls so that the reference of the environmental condition having a high priority is satisfied first.

Wherein the environmental condition is composed of a first environmental condition detected by the first environmental condition detection sensor and a second environmental condition detected by the second environmental condition detection sensor; Wherein the control unit determines whether the first environmental condition meets a first criterion in a range between an upper limit value and a lower limit value in the step a) Judge whether or not it is satisfied; In the step b), if the first environmental condition and the second environmental condition detected in the step a) are different from the ranges of the first reference and the second reference, respectively, the control unit sets the first environmental condition and the second environment It may be possible to judge the priority of the condition and to control so that the criterion of the environmental condition of high priority is satisfied first.

The control unit sets a plurality of control orders such that the control order becomes faster as the deviation of the first environmental condition from the first reference range becomes larger, 1 environmental condition first control condition based on a first environmental condition first reference value and a first environmental condition second reference value smaller than the first environmental condition first reference value, Is set; A second environmental condition first control order in which control is first performed when the second environmental condition exceeds the second reference condition and is equal to or greater than the second environmental condition first reference value, A second environmental condition second control order is set which is within a range of a second criterion and is controlled based on a second environmental condition second reference value smaller than the second environmental condition first reference value; In the step b), if the first environmental condition and the second environmental condition all correspond to the first control order, the control unit controls the first environmental condition to first meet the first criterion, 2 environmental condition to meet the second criterion.

Wherein the first environmental condition is the temperature and humidity of the room air; When the temperature of the room air measured corresponds to the first environmental condition first control order and the humidity of the detected room air corresponds to the first environmental condition first control order, Adjusting the temperature of the room air to meet the first criterion and then adjusting the humidity of the room air so that the humidity of the room air meets the first criterion.

Wherein the second environmental condition comprises at least two of CO2, VOC, odor, and fine dust contained in the indoor air; If the content of two or more of CO2, VOC, odor, and fine dust in the detected indoor air corresponds to the second environmental condition first control order, it is determined that the order of CO2, VOC, odor, and fine dust is high And an air purifying mode or a ventilation mode of the room air is performed so as to satisfy the second criterion.

In the step b), when one of the first environmental condition and the second environmental condition corresponds to the first control order and the remaining one corresponds to the second control order, the control unit determines that the environmental condition corresponding to the first control order It may first be controlled to meet the criterion, and then the environmental condition corresponding to the second control order may be controlled to meet the criterion later.

According to the present invention, the air conditioner capable of operating in various modes can set a priority order for a plurality of indoor environmental conditions and firstly satisfy the most necessary conditions in the present indoor condition, so that the user can feel comfort quickly.

In addition, indoor environmental conditions are classified into environmental conditions that require adjustment to be in the upper and lower ranges such as temperature and humidity, and environmental conditions that become better as the odor and dust and lower CO2 and VOC are lower. It is possible to provide the most comfortable indoor environment to the user by giving priority to the operation between the environmental conditions.

1 is a view showing a configuration of an air conditioner according to an embodiment of the present invention;
2 is a view showing a control configuration according to the present invention;
3 is a view showing an operating state in the heating and humidifying mode in the air conditioner according to the present invention
4 is a view showing an operation state in the air conditioning and dehumidifying mode in the air conditioner according to the present invention
5 is a view showing an operation state in the air cleaning mode in the air conditioner according to the present invention
6 is a view showing an operating state in the ventilation mode in the air conditioner according to the present invention
7 is a flowchart showing the control method of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A configuration of an air conditioner according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

The air conditioner of the present invention includes first air passages 110a, 110b and 110c connected at both ends to the room, second air passages 210a, 210a, 210b and 210c at both ends connected to the outside, The first region 310 and the second region 320 are formed on the first region 310 and the second region 320 by rotation of the first region 310 and the second region 320, A first heat exchanger 150 and a second heat exchanger 250, a third heat exchanger 170 and a fourth heat exchanger 270 are connected to a condenser and an evaporator A plurality of sensors 701, 702, 703, 704, 705, 706 for detecting indoor environmental conditions, a plurality of sensors (not shown) for sensing the indoor environmental conditions, 701, 702, 703, 704, 705, and 706) for controlling the rotor member 300 and the heat pump 600 according to the environmental conditions detected.

The first and second air passages 110 and 210 include inlet portions 110a and 210a through which indoor / outdoor air flows, intermediate portions 110b and 210b, and indoor / And outlet portions 110c and 210c for discharging the liquid to the other side.

The first air passage 110 is provided with a plurality of filters 120, 130 and 140, a first heat exchanger 150, a third heat exchanger 170 and a first blower 160 in sequence. A plurality of filters 220 and 230, a second heat exchanger 250, a damper 280-2, a fourth heat exchanger 270 and a second blower 260 are sequentially installed in the second air passage 210 .

The damper 280-2 is located between the fourth heat exchanger 270 and the second region 320 and the intermediate portion 210b of the second air passage 210 and the bypass passage 285-2 At the intersecting point. The bypass passage 285-2 is connected to the outside of the room.

The rotor member 300 is provided with an adsorbent for adsorbing moisture of air therein. The first region 310 is connected to the first air passage 110 and the second region 320 is connected to the second air passage 210.

A third region 330 is formed between the first region 310 and the second region 320 to supply moisture by the water supply unit 500. However, the third region 330 may not be formed independently, and the third region 330 may be formed as one region with the second region 320. In this case, the moisture supplied from the water supply unit 500 may be supplied to the second area 320.

The first region 310, the second region 320 and the third region 330 are separated from each other, and the adsorbent of the rotor member 300 is driven by a driving unit (not shown) .

The flow path switching unit 400 includes a first inlet 410 through which indoor air flows, a second inlet 420 through which outdoor air flows, a first outlet 430 connected to the first region 310, And a second outlet 440 connected to the second region 320. The flow path switching unit 400 may include a four-way valve. The first inlet 410 is connected to the first outlet 430 or the second outlet 440, A direction switching gate (not shown) may be provided to switch the connection direction so that the first outlet 420 or the second outlet 420 is connected to the first outlet 430 or the second outlet 440.

The water supply unit 500 includes a third blower 510 disposed on the humidifying air passage 540 to flow the humidifying air, a water supply unit 500 for supplying moisture when the air supplied by the third blower 510 passes, A water supply valve 550 for supplying water to the water tank 530, a water supply valve 550 for supplying water to the water tank 530, And a drain valve 560 for draining the water of the water pump 530.

In the water tank 530, water is filled at a predetermined water level, and the humidifying filter 520 is provided so that a part of the lower end of the water is immersed in the water. The humidifying filter 520 may be configured to be rotated by a driving unit (not shown).

When the air passes through the humidifying filter 520, the moisture adsorbed by the humidifying filter 520 evaporates and flows into the third region 330 along the humidifying air passage 540. The air that has been dried after the moisture adsorbed on the adsorbent of the third region 330 is again caused to flow to the humidifying filter 520 by the third blower 510. Thus, the humidifying air passage 540 may be a closed (closed) passage.

The water supply pipe 570 provided with the water supply valve 550 may be connected to supply tap water. The drain pipe 580 provided with the drain valve 560 is connected to the outside of the air conditioner and is configured to be able to drain the water of the water tank 530 to the outside.

The heat pump 600 includes a compressor 610 for compressing the refrigerant into high temperature and high pressure gas refrigerant and a four-way valve 620 provided at the outlet side of the compressor 610 for switching the flow direction of the refrigerant. The refrigerant compressed in the compressor 610 is circulated through the first refrigerant circulation path 640-1 during heating and humidification in the four-way valve 620, and is circulated through the second refrigerant circulation path 640-2 ≪ / RTI >

On the first refrigerant circulation path 640-1, a first expansion valve 630-1 for decompressing the refrigerant condensed in the first heat exchanger 150, a second expansion valve 630-2 for decompressing the refrigerant condensed in the first heat exchanger 150, And a fourth heat exchanger (270) that operates as an evaporator by evaporating the refrigerant decompressed in the first expansion valve (630-1).

A second expansion valve 630-2 for decompressing the refrigerant condensed in the second heat exchanger 250, a second expansion valve 630-2 for decompressing the refrigerant condensed in the second heat exchanger 250, And a third heat exchanger 170 that operates as an evaporator by evaporating the refrigerant decompressed in the second expansion valve 630-2.

The indoor environmental conditions may be room temperature, humidity, dust, odor, CO2, VOC (volatile organic compound). The sensors 701, 702, 703, 704, 705 and 706 for detecting indoor environmental conditions include a temperature sensor 701, a humidity sensor 702, a dust sensor 703, an odor sensor 704, a CO2 sensor 705 and a VOC sensor 706 . The odor sensor 704 may be configured to detect the amount of ammonia and amine contained in the indoor air. Here, the temperature sensor 701 and the humidity sensor 702 are classified as a first environmental condition detection sensor, and the dust sensor 703, the odor sensor 704, the CO2 sensor 705, and the VOC sensor 706 are classified into a second environment Condition sensor.

The indoor environment conditions measured by the sensors 701, 702, 703, 704, 705, and 706 are received by the control unit 100. The control unit 100 compares the measured values with the predetermined standards to perform the cooling, heating, dehumidification, humidification, So that the mode can be performed.

The heating and humidifying mode will be described with reference to Fig.

In the heating and humidifying mode, the first blower 160, the second blower 260, and the compressor 610 are turned on, and the rotor member 300 is rotated. The refrigerant flows along the first refrigerant circulation path 640-1 so that the first heat exchanger 150 operates as a condenser and the fourth heat exchanger 270 operates as an evaporator. The water is supplied from the water supply unit 500 to the third region 330 and the direction of the damper 280-2 is changed from the bypass flow passage 285-1 to the outlet portion 210c of the second air flow passage 210 ).

The indoor air flows through the first air passage 110 by the operation of the first blower 160. [ The heated indoor air passing through the first heat exchanger (150) passes through the first region (310) of the rotor member (300). In this case, the adsorbent adsorbing moisture in the third region 330 is rotated to be located in the first region 310, and the heated indoor air passes through the first region 310 to evaporate the moisture of the adsorbent, . The room air having passed through the first area 310 is discharged to the room through the outlet part 110c of the first air flow path 110. [ As a result, indoor heating is performed together with indoor humidification.

The outdoor air is introduced through the bypass passage 285-2 and the outlet portion 210c of the second air passage 210 through the fourth heat exchanger 270 To the outside of the other side.

Although the heating and humidification are simultaneously performed in the above description, the heating and humidification may be independently performed through the control of the rotor member 300 and the water supply unit 500.

The cooling and dehumidifying mode will be described with reference to FIG.

In the dehumidification and cooling mode, the first blower 160, the second blower 260 and the compressor 610 are turned on, the rotor member 300 rotates, and water is not supplied from the water supply unit 500 Do not.

When the compressor 610 is turned on in the dehumidification mode, the refrigerant is circulated through the compressor 610, the four-way valve 620, the second heat exchanger 250, 2 expansion valve 630-2, the third heat exchanger 170, and the compressor 610, respectively. In this case, the second heat exchanger 250 operates as a condenser, and the third heat exchanger 170 operates as an evaporator.

When the first blower 160 is operated, the room air passes through the first zone 310 and the moisture contained in the room air is adsorbed to the adsorbent of the first zone 310. The indoor air from which the moisture is removed in the first region 310 is discharged to the room through the outlet portion 110c of the first air flow path 110. In this case, since the temperature of the air discharged into the room is lowered by the third heat exchanger 170, the indoor air cooling effect is obtained.

When the second blower 260 is operated, the outdoor air introduced through the inlet 210a of the second air passage 210 is heated while passing through the second heat exchanger 250, 320). When the adsorbent of the rotor member 300 which absorbs the moisture of indoor air in the first region 310 rotates and is located in the second region 320, the heated outdoor air passing through the second region 320 The moisture of the adsorbent is evaporated and the outdoor air is humidified and discharged to the outside through the outlet 210c of the second air passage 210. [ By this process, the indoor air is dehumidified, and a pleasant indoor environment can be maintained.

In the above description, the cooling and dehumidifying are simultaneously performed. However, the cooling and dehumidifying may be controlled independently.

The air cleaning mode will be described with reference to FIG.

In the air cleaning mode, the first blower 160 is turned on. The compressor 610 is turned off and the water supply unit 500 does not supply water.

The indoor air introduced through the inlet 110a of the first air passage 110 due to the operation of the first blower 160 passes through the plurality of filters 120,130 and 140 while the harmful elements such as foreign particles, The fine particles are removed, and the air is discharged to the room through the outlet 110c of the first air flow path 110, thereby purifying the room air.

The ventilation mode will be described with reference to Fig.

When the ventilation mode is activated, the first blower 160 and the second blower 260 are operated. In this case, the direction switching gate of the flow path switching unit 400 is switched in the flow path direction different from that shown in FIGS. The compressor 610 is turned off and the water supply unit 500 does not supply water.

The indoor air sucked into the inlet portion 110a of the first air passage 110 by the operation of the second blower 260 passes through the filter 120 and the second region 320 of the rotor member 300 And then discharged through the outlet 210c of the second air passage 210 to the outside of the room. At the same time, the outdoor air sucked into the inlet portion 210a of the second air passage 210 passes through the first region 310 of the rotor member 300 through the filters 220, 130 and 140, And is discharged to the room through the outlet portion 110c.

By this process, the room air is discharged to the outside, and the outdoor air flows into the room through the plurality of filters 220, 230, 130 and 140, thereby ventilating the room air.

As described above, it is possible to operate the cooling, heating, dehumidifying, humidifying, air cleaning and ventilation modes in one air conditioner.

Hereinafter, a control method of the air conditioner having the above-described configuration will be described with reference to FIG.

In step S101, the temperature, humidity, and humidity of the indoor air, which is an indoor environmental condition, are detected by the temperature sensor 701, the humidity sensor 702, the dust sensor 703, the odor sensor 704, the CO2 sensor 705, and the VOC sensor 706, Dust, ammonia and amines, CO2, and VOC, and the detected values are transmitted to the control unit 100. [0051]

The temperature and humidity are determined based on the range between the upper limit value and the lower limit value such as 20 to 26 ° C and 40 to 60% RH. If the current temperature and humidity are within the range, the user becomes comfortable. Therefore, temperature and humidity are defined as first environmental conditions. In addition, the smaller the amount of dust and smell, the lower the amount of CO2 and VOC, the more pleasant the room is, so this environmental condition is defined as the second environmental condition.

In step S102, it is determined whether the first environmental condition meets a first criterion and whether the second environmental condition meets a second criterion. If it is determined that the first environmental condition and the second environmental condition both satisfy the first criterion and the second criterion, the operation of the air conditioner is terminated. Otherwise, the process goes to step S103.

The table below shows an example of the criteria set for each of the first environmental condition and the second environmental condition, and the priority order for each environmental condition. Here, the priority order is for determining a mode in which a plurality of environmental conditions deviate from the established criteria and which mode should be operated first, and the higher the priority is, the higher the priority is defined.

Environment
Condition
Details
Condition standard Definition of operation mode priority level in automatic operation driving
mode The priority between the first control ranks The first control
ranking Second control
ranking Third control
ranking First environmental condition
Temperature
20-26 ℃
Greater than 4 ° C Greater than 3-4 ° C Greater than 2-3 ℃ cooling One Less than 4 ℃ Less than 3-4 ℃ Greater than 2-3 ℃ heating 2 Humidity
40 to 60% RH
15 to 20% RH or more 10 to 15% RH
Excess 5 to 10% RH
Excess Dehumidification 3 15 to less than 20% RH 10 to 15% RH
under 5 to 10% RH
under Humidification 4 Second environmental condition fine dust 50 μg / m 3 or less 51 μg / m 3
More than 16 to 50 μg / m 3 15 μg / m 3
under air
purity 8 smell
(gas) Ammonia, Amine: 30 μg / ㎥ or less 31 μg / m 3
More than 26 to 30 μg / m 3 25 μg / m 3
under air
purity 7 CO2 1000ppm or less 1001 or more 901-1000 Less than 800-900 Ventilation 5 VOCs 400 ㎍ / ㎥ or less 401 or more 350 to 400 Less than 350 Ventilation 6

The first criterion is a range between the upper limit value and the lower limit value. As shown in the table, the first temperature of the temperature is set in a range of 20 to 26 DEG C, and the first standard of humidity is in a range of 40 to 60% RH . If the temperature and humidity detected by the temperature / humidity sensors 701 and 702 are within the set range, it is determined that the condition is such that the user can provide comfort.

In addition, when the temperature and humidity of the room detected by the temperature / humidity sensors 701 and 702 are out of the range defined by the first reference, priority is given to the third control order from the first control order to the third control order Respectively.

For example, when the room temperature detected by the temperature sensor 701 is higher than or equal to 4 degrees Celsius than the upper limit value of the first criterion or lower than 4 degrees Celsius as the lower limit value, it is determined that the room temperature is very high or low. Here, 4 占 폚 is referred to as a first environment reference first reference value.

If the room temperature exceeds the upper limit of the first criterion by 3 to 4 DEG C or less than the lower limit by 3 to 4 DEG C, it is determined that the necessity to control the room temperature is a middle control criterion. Here, 3 to 4 占 폚 is referred to as a first environmental condition second reference value.

If the room temperature is higher than the upper limit of the first reference by 2 to 3 DEG C or lower than the lower limit by 2 to 3 DEG C, it is determined that the third control order is the lowest necessity to control the room temperature. Here, 2 to 3 占 폚 is referred to as a first environmental condition third reference value.

In the case of humidity, the controller 100 is set to have the first control order to the third control order in the same manner as the temperature, and the first environmental condition first reference value to the third reference value are set.

When the detected indoor temperature exceeds the upper limit of the first reference, the controller operates in the cooling mode. When the indoor temperature is lower than the first reference lower limit, the controller operates in the heating mode. Similarly, when the indoor humidity exceeds the upper limit value of the first reference or is lower than the lower limit value, the operation is performed in the dehumidification mode or the humidification mode.

As shown in the table above, the second criterion is not more than the upper limit value. As shown in the table, the concentration of ammonia and amine is less than 30 μg / m 3 in the case of fine dust, the ammonia and amine is less than 1000 ppm in case of odor, For VOCs, it is set at 400 ㎍ / ㎥ or less. The second environmental condition consists of conditions that affect the health of the user and the upper limit of the second criterion is the minimum environmental condition that the indoor environment should not exceed this upper limit.

For example, in the case of fine dust in the second environmental condition, when the value of fine dust detected by the dust sensor 703 is 51 μg / m 3 or more, the first control order is determined. Here, 51 μg / m 3 is referred to as a second environmental condition first reference value.

Even if fine dust detected by the dust sensor 703 is detected within the range of the second reference, the user's health may be deteriorated. Therefore, the second control order and the third control such that the higher the detected value, And sets the second environmental condition second reference value and the second environmental condition third reference value corresponding to the ranking. In the above example, the second environmental condition second reference value of fine dust is set at 16 to 50 占 퐂 / m3, and the second environmental condition third reference value is set to be less than 15 占 퐂 / m3.

The remaining odor, CO2, and VOC are set to the first to third control orders and the second environmental condition first reference value to the third reference value, respectively, in the same manner as the fine dust.

In each case, operate in the air clean mode to lower the fine dust and odor values, and ventilation mode to lower the CO2 and VOC values.

In addition, the "priority among the first control orders" described in Table 1 is a priority order when all the environmental conditions correspond to the first control order. That is, when the first environmental condition and the second environmental condition all correspond to the first control order, the priority of the first environmental condition is set higher so that the user can feel the comfort level quickly. When both the temperature and the humidity of the first environmental condition correspond to the first control order, the priority of the temperature is set to be higher than the humidity in order to allow the user to feel the comfort level more quickly. In addition, when the fine dust and odor of the second environmental condition, and both the CO2 and the VOC correspond to the first control order, priority is given to CO2, VOC, odor, and fine dust according to degree of harm to the user Is set high. However, the room temperature and the humidity do not occur when the priority between 1 and 2 and the priority between 3 and 4 are determined because there is only one value measured by the sensor.

On the other hand, the first control order has the highest priority and the third control order has the lowest priority among the first to third control orders. For example, when the temperature is in the range of the third control order, the humidity is in the range of the second control order, and the dust is in the range of the first control order, the order of air cleaning → humidity / .

In step S103, a priority between the first criterion of the first environmental condition and the second criterion of the second environmental condition is determined. That is, when a plurality of environmental conditions among the detected values of temperature, humidity, fine dust, odor, CO2, and VOC described above do not satisfy the first and second criteria, or the control ranks are different from each other, Judge the ranking.

In step S104, the operation is performed in cooling, heating, dehumidification, humidification, air cleaning, and ventilation modes so as to satisfy the first criterion or the second criterion from the environment condition having a high priority determined in step S103.

In step S105, it is determined in step S104 whether both of the first reference and the second reference of the operation result are satisfied. If all of the determination results are satisfied, the operation of the air conditioner is terminated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And this also belongs to the present invention.

100: control unit 110: first air passage
120, 130, 140: filter 150: first heat exchanger
160: first blower 170: third heat exchanger
210: second air passage 220, 230: filter
250: second heat exchanger 260: second blower
270: fourth heat exchanger 300: rotor member
310: first region 320: second region
330: third region 400: flow path switching portion
410: first inlet 420: second inlet
430: first outlet 440: second outlet
500: water supply part 510: third blower
520: humidifying filter 530: water tank
540: Humidification air channel 550: Water supply valve
560: Drain valve 570: Water supply pipe
580: Water pipe 600: Heat pump
630-1: first expansion valve 630-2: second expansion valve
640-1: first refrigerant circulation path 640-2: second refrigerant circulation path
701: Temperature sensor 702: Humidity sensor
703: Dust sensor 704: Odor sensor
705: CO2 sensor 706: VOC sensor

Claims (6)

A control method of an air conditioner for controlling an environment of indoor air by detecting at least two environmental conditions among a plurality of indoor environmental conditions,
a) determining by the control unit whether each of the two or more detected environmental conditions meets the criterion;
and b) if the two or more environmental conditions deviate from the respective criteria, the control unit judges the priority among the environmental conditions and controls so that the reference of the environment condition of high priority is satisfied first. Control method of The method according to claim 1,
Wherein the environmental condition is composed of a first environmental condition detected by the first environmental condition detection sensor and a second environmental condition detected by the second environmental condition detection sensor;
Wherein the control unit determines whether the first environmental condition meets a first criterion in a range between an upper limit value and a lower limit value in the step a) Judge whether or not it is satisfied;
In the step b), if the first environmental condition and the second environmental condition detected in the step a) are different from the ranges of the first reference and the second reference, respectively, the control unit sets the first environmental condition and the second environment Judges the priority of the condition and controls so that the criterion of the environmental condition of high priority is first satisfied 3. The method of claim 2,
The control unit sets a plurality of control orders such that the control order becomes faster as the deviation of the first environmental condition from the first reference range becomes larger, 1 environmental condition first control condition based on a first environmental condition first reference value and a first environmental condition second reference value smaller than the first environmental condition first reference value, Is set;
A second environmental condition first control order in which control is first performed when the second environmental condition exceeds the second reference condition and is equal to or greater than the second environmental condition first reference value, A second environmental condition second control order is set which is within a range of a second criterion and is controlled based on a second environmental condition second reference value smaller than the second environmental condition first reference value;
In the step b), if the first environmental condition and the second environmental condition all correspond to the first control order, the control unit controls the first environmental condition to first meet the first criterion, 2 < / RTI > environment condition satisfies the second criterion < RTI ID = 0.0 > The method of claim 3,
Wherein the first environmental condition is the temperature and humidity of the room air;
When the temperature of the room air measured corresponds to the first environmental condition first control order and the humidity of the detected room air corresponds to the first environmental condition first control order, Controlling the temperature of the room air so as to satisfy the first criterion and then adjusting the humidity of the room air so that the humidity of the room air satisfies the first criterion The method of claim 3,
Wherein the second environmental condition comprises at least two of CO2, VOC, odor, and fine dust contained in the indoor air;
If the content of two or more of CO2, VOC, odor, and fine dust in the detected indoor air corresponds to the second environmental condition first control order, it is determined that the order of CO2, VOC, odor, and fine dust is higher Wherein the air clean mode or the ventilation mode of the room air is performed so as to satisfy the second criterion The method of claim 3,
In the step b), when one of the first environmental condition and the second environmental condition corresponds to the first control order and the remaining one corresponds to the second control order, the control unit determines that the environmental condition corresponding to the first control order The control is performed so as to satisfy the criterion first, and then the environmental condition corresponding to the second control order is controlled so as to meet the criterion later

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