KR20190026380A - Air conditioner and control method thereof - Google Patents

Abstract

The present invention relates to an air conditioner and a control method thereof. According to an idea of the present invention, the air conditioner comprises: a case in which a suction hole and a discharge hole are formed; a blowing unit and a humidifying unit which are disposed in the case; a filter unit disposed adjacent to the suction hole; and a heater unit disposed adjacent to the discharge hole. The heater unit has a heater which is turned on and off in accordance with input of power. Moreover, the heater unit rotates in the adjacent direction to the discharge hole when the heater is turned on, and is installed in the case to be rotatable in the direction spaced from the discharge hole when the heater is turned off.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air conditioner,

The present invention relates to an air conditioner and a control method thereof.

The air conditioner is a device for providing harmonized air to the indoor space for the user's convenience. In detail, the air conditioner adjusts the temperature, humidity, cleanliness, etc. of the room air to supply the air required by the user.

The air conditioner may include an air conditioner, a heater, a humidifier, a dehumidifier, and an air purifier. At this time, the air conditioner and the heater control the temperature of the room air, and the humidifier and the dehumidifier adjust the humidity of the room air, and the air purifier functions to improve the cleanliness of the room air.

2. Description of the Related Art In recent years, devices for effectively controlling indoor air have been developed by combining such devices. The present applicant has filed and registered the following prior art documents.

(1) First Prior Art: Registration No. 10-1225981, Air Purifier

The above-mentioned first prior art is an invention relating to an air purifier, but a humidifying function is added to increase the humidity and lubrication of room air. Specifically, in the first prior art document, the water contained in the water tank is spontaneously vaporized by the operation of the fan to provide humidified air in the indoor space.

At this time, in the process of natural vaporization, heat is taken from the indoor space, and the temperature of the indoor space is lowered. Particularly, there is a problem that when the humidifier is used in a dry winter season, the user is very uncomfortable.

In order to solve such a problem, the present embodiment is intended to propose an air conditioner having a heater and a control method thereof.

It is another object of the present invention to provide an air conditioner and its control method which are operated in various operation modes that provide comfort to the user.

An air conditioner according to an embodiment of the present invention includes a case having a suction port and a discharge port, an air blowing unit and a humidifying unit disposed inside the case, a filter unit disposed adjacent to the suction port, Wherein the heater unit is provided with a heater which is turned on and off according to an input of a power source, the heater unit is rotated in a direction adjacent to the discharge port when the heater is turned on, and when the heater is turned off, And may be installed in the case so as to be rotatable in a direction away from the discharge port.

When the heater is turned on, the air introduced into the case through the suction port may be discharged to the discharge port through the filter unit, the air blowing unit, the humidification unit, and the heater unit.

The blowing unit includes a blowing fan operated by a strong wind or a weak wind, and when the humidity of the room is lower than a predetermined temperature, the blowing fan can be operated with a strong wind.

The heater may be turned on when the blowing fan operates with strong wind and the room temperature is equal to or higher than a predetermined temperature.

The humidifying unit may include a rotatably provided humidifier and a tray in which a predetermined amount of humidifying water is stored so that at least a part of the humidifier is immersed.

The heater unit may be detachably installed in the case.

A control method of an air conditioner according to the present invention includes a filter unit, an air blowing unit, a humidification unit, and a heater unit. The control method includes the steps of measuring indoor humidity and determining whether the humidity is lower than a predetermined humidity And when the blowing unit is operated with a strong wind, the indoor temperature is measured to judge whether or not it is lower than a predetermined temperature, and when the blowing unit is operated with a strong wind, , The heater unit is arranged such that air flowing by the blowing unit sequentially passes through the filter unit, the humidifying unit and the heater unit.

The heater unit may be rotated toward the discharge port when the temperature of the air passing through the humidifying unit and the blowing unit is less than the predetermined temperature such that the air passes through the heater unit and is discharged through the discharge port.

The heater unit may be rotated toward the discharge port so as to correspond to the discharge port, and power may be supplied to the heater provided in the heater unit to radiate a predetermined heat.

The heater unit may be disposed at a predetermined distance from the discharge port so that air passing through the humidifying unit and the blower unit bypasses the heater unit and is discharged through the discharge port when the temperature is equal to or higher than the predetermined temperature.

When the temperature is equal to or higher than the predetermined temperature, a range of the optimum airflow velocity according to the measured temperature can be calculated.

The distance between the air conditioner and the air conditioner can be calculated by detecting the human body around the air conditioner and calculating the distance between the air conditioner and the air conditioner.

It is possible to judge whether the measuring air flow rate is included in the range of the optimum air flow rate and to operate the air blowing unit as a weak air flow when the measuring air flow rate is not included in the range of the optimum air flow rate.

When the measured air flow rate is included in the range of the optimum air flow rate, the air blowing unit can be operated with strong wind.

The range of the optimum airflow velocity may be determined based on a PMV (Predicted Mean Vote), which is an index indicating a predicted thermal sensation.

According to the proposed embodiment, the air conditioning apparatus and the control method thereof according to the present invention can provide air with improved temperature, humidity, and cleanliness to the user.

Especially, the air whose temperature is lowered by humidification by natural evaporation can be heated to a suitable temperature by using a heater.

Further, the heater can be installed at the discharge port to effectively raise the temperature of the discharged air.

In addition, the heater is provided inside the case so as to be rotatable, and is installed in the discharge port only when the heater is used, so that the loss of the flow rate due to the heater can be prevented.

Further, the air conditioner of the present invention can be controlled so that unpleasant air is not provided to the user through airflow control.

Accordingly, the air conditioner can be operated in various modes suitable for the user by adding airflow control as well as temperature, humidity, and cleanliness.

1 is a view illustrating an air conditioner according to an embodiment of the present invention.
2 is an exploded view of an air conditioner according to an embodiment of the present invention.
3 is a cross-sectional view taken along line I-I 'of FIG.
4 is a diagram illustrating a control structure of an air conditioner according to an embodiment of the present invention.
5 is a view showing a control flow of the air conditioner according to an embodiment of the present invention.
6 is a view showing a control flow of the air conditioner according to another embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

FIG. 1 is a view showing an air conditioner according to an embodiment of the present invention, and FIG. 2 is an exploded view of an air conditioner according to an embodiment of the present invention.

As shown in Figs. 1 and 2, the air conditioner 1 according to the present invention includes a case 10 forming an outer appearance.

The case 10 is provided with a front panel 20 and a rear panel 30 coupled to form an internal space. The front panel 20 is coupled to the front surface of the rear panel 30. Such a shape is exemplary and the case 10 may be provided in various shapes.

In addition, the front panel 20 may be movably installed on the rear panel 30. The front panel 20 may be in close contact with the rear panel 30 to close the internal space or at least a part of the rear panel 30 may be spaced apart to form at least one inlet 12.

That is, when the air conditioner 1 is turned on, the front panel 20 is moved in a direction away from the rear panel 30 so that the room air is sucked through the inlet 12. When the air conditioner 1 is turned off, the front panel 20 is moved in close contact with the rear panel 30 such that the inlet 12 is closed.

However, this is an example, and the front panel 20 may be fixed to the rear panel 30 to form the inlet 12.

As shown in FIG. 1, the air inlet 12 is formed on both side surfaces and a lower surface of the air conditioner 1, and room air can be sucked in the direction of the arrow. The position of the suction port 12 is illustrative, and the suction port 12 may be provided at various positions where the room air is sucked.

The front panel 20 may be provided with a filter unit 22 for removing foreign substances from the indoor air to be sucked. The filter unit 22 may be disposed on the rear surface of the front panel 20. thereafter. The suction port 12 and the filter unit 22 may be disposed at corresponding positions when the front panel 20 is moved in a direction away from the rear panel 30, Therefore, the indoor air sucked through the suction port (12) passes through the filter unit (22) and the foreign matter can be removed.

The filter unit 22 may be provided with various filters such as a pre-filter, a plasma filter, an antibacterial filter, a hepar filter, and a deodorization filter.

The pre-filter has a function of removing a relatively large foreign substance and may be disposed nearest to the suction port 12. [ The plasma filter has a function of collecting foreign matter by electricity, and the antibacterial filter can adsorb and decompose allergens causing allergies, and can perform antibacterial action.

The HEPA filter is an air filter that removes fine particles such as dust, mites, pollen, tobacco smoke, floating fungus, animal hair and the like as well as fine dust in the air . The deodorization filter is a comprehensive deodorization filter and functions to remove various odors such as tobacco smoke (odor) in the air, living odor, food waste odor, bathroom odor, and the like.

At least one of the various function filters may be provided in the filter unit 22 to remove foreign matter contained in the room air.

The front panel 20 may include a power unit (not shown) for turning on / off the power of the air conditioner 1 or an input unit (not shown) for selecting various modes. Also, a display unit (not shown) may be provided to indicate the operating state of the air conditioner 1.

The air blowing unit 40 and the humidifying unit 50 may be disposed in the inner space formed by the front panel 20 and the rear panel 30. [ Further, the blowing unit 40 may be positioned on the front surface of the humidifying unit 50. [ That is, the air blowing unit 40 is disposed closer to the suction port 12 than the humidifying unit 50, so that room air can be forcedly convected.

The air blowing unit 40 includes a blowing fan 42 rotatably arranged and a blowing motor (not shown) for providing a driving force to the blowing fan 42. Further, the blowing fan 42 includes a blowing fan mounting portion 44 provided in the inner space.

The blowing motor can be operated at various RPMs so that the blowing fan 42 can be driven at various speeds. For example, the blowing motor may drive the blowing fan 42 as a strong wind or a weak wind. Further, the blowing motor may provide a driving force to a humidifier or a heater driving unit, which will be described later.

The humidifier unit (50) includes a humidifier (52) provided rotatably and a humidification motor (not shown) for providing a driving force to the humidifier (52). As described above, the ventilation motor and the humidification motor may be configured in the same manner.

The humidifying unit 50 includes a tray 54 for storing a predetermined amount of humidifying water and a water tank 56 connected to one side of the tray 54. The tray 54 may receive a predetermined amount of humidified water from the water tank 56.

At this time, the water tank 56 is detachably attached to the tray 54, and at least a part of the water tank 56 is exposed on one side of the case 10 to be detachable. The water tank 56 may be at least partially transparent so that the amount of humidified water stored in the water tank 240 can be known. Accordingly, the user can check the amount of the humidifying water stored in the water tank 56 and remove the water tank 56 to replenish the humidifying water.

The humidifier 52 may be installed to contact at least a portion of the humidifier water stored in the tray 54. Accordingly, as the humidifier 52 is rotated, the portion in contact with the humidifying water is exposed to the air, and evaporation is generated by the air forcedly flowed by the blowing unit 40. That is, the absolute humidity of the flowing air can be increased, and the humidity of the indoor space can be increased through such a process.

In addition, a heater unit 60 may be provided in the inner space formed by the front panel 20 and the rear panel 30. The heater unit 60 may include a heater 62 that dissipates predetermined heat by inputting power.

Hereinafter, the heater unit 60 will be described in detail.

3 is a cross-sectional view taken along line I-I 'of FIG. 3 corresponds to a view showing a simplified section of the air conditioner 1 for convenience of explanation.

As shown in FIG. 3, the front panel 20 is provided in a predetermined plate shape extending vertically, and the rear panel 30 is protruded rearward to form an inner space. At least a part of the rear panel 30 is provided with at least one discharge port 32 through which conditioned air is discharged into the indoor space.

The heater unit (60) may be installed adjacent to the discharge port (32). Also, as shown in FIG. 3, the heater unit 60 may be rotatable. The rotating structure of the heater unit 60 is not described in detail by a general technique, and various types of driving methods may be provided.

Specifically, when the heater 62 is turned on, the heater unit 60 is rotated in a direction adjacent to the discharge port 32. When the heater 62 is turned off, the heater unit 60 is separated from the discharge port 32 Lt; / RTI >

3, when the heater unit 60 is positioned adjacent to the discharge port 32, the air passing through the discharge port 32 passes through the heater 62 and is discharged into the indoor space. That is, the temperature of the air flowing into the discharge port 32 is raised by the heater 62.

When the heater unit 60 is positioned so as to be spaced apart from the discharge port 32, the heater unit 60 can block the air flowing without passing through the humidifying unit 50. Accordingly, air flowing by the air blowing unit (40) passes through most of the humidifying unit (50), so that the humidifying efficiency can be increased.

However, the position of the heater unit 60 may be different depending on the shape of the case 10. The heater unit 60 may be detachably mounted to the case 10.

4 is a diagram illustrating a control structure of an air conditioner according to an embodiment of the present invention.

4, the air conditioner 1 according to the present invention includes a temperature sensor 70, a humidity sensor 72 and a human body sensor 74, a temperature sensor 70, A controller 72 for receiving information from the human body sensor 74, and a controller 80 for controlling various components described above.

The temperature sensor 70 corresponds to a sensor for measuring the temperature of the indoor space, and the humidity sensor 72 corresponds to the sensor for measuring the humidity of the indoor space. The human body sensor 74 corresponds to a sensor for measuring the distance between the air conditioner 1 and the human body in the room. Such sensors are general and will not be described in detail.

The temperature sensor 70, the humidity sensor 72 and the human body sensor 74 may be installed in the case 10. However, it is not necessary to be installed in the case 10, and it is sufficient that the measured information can be transmitted to the controller 80. That is, it may be provided in another apparatus or provided in an indoor space.

The control unit 80 can control the configuration of the air conditioner 1 described above. In detail, the control unit 80 can turn the heater unit 60 on or turn the heater 62 on / off by applying power to the heater 62. In addition, the controller 80 may apply power to the blower motor or the humidifier motor to drive the blower fan 42 and the humidifier 52 at a predetermined speed.

In addition, the control unit 80 receives commands from the power unit and the input unit, controls various configurations, and displays the operating status on the display unit.

Hereinafter, a control flow according to this control configuration will be described as an example.

5 is a view showing a control flow of the air conditioner according to an embodiment of the present invention. The control flow shown in Fig. 5 corresponds to the air conditioner 1 in which the human body detecting sensor 74 is omitted.

As shown in FIG. 5, the air conditioner 1 is turned on (100), and the indoor humidity measured by the humidity sensor 72 is determined. This may be understood as a case where the user turns on the air conditioner 1 via the power supply unit or the air conditioner 1 is turned on at a predetermined time.

This is an example, and the air conditioner 1 can be turned on according to the room humidity measured by the humidity sensor 72. That is, when the indoor humidity is equal to or lower than the predetermined humidity, it can be automatically operated.

It is determined whether the room humidity measured by the humidity sensor 72 is 35% or more (110). At this time, 35% is an exemplary value and can be understood as a humidity value at which the user feels uncomfortable.

When the indoor humidity is 35% or more, the air conditioner 1 is operated in the power saving and humidifying mode 120. The power saving and humidifying mode 120 corresponds to a mode in which the blowing fan 42 is operated by the weak wind. This can be understood as a case where the air conditioner 1 is operated when the room humidity is relatively high.

In addition, the air blowing fan 42 can operate in a strong wind according to the degree of cleanliness of indoor air, thereby removing foreign matter from the indoor air. Further, in the case of the structure in which the air blowing fan 42 and the humidifier 52 are operated together, it can be operated as a weak wind.

On the other hand, when the indoor humidity is less than 35%, the air conditioner 1 is operated in the rapid humidification mode 130. The rapid humidification mode 130 corresponds to a mode in which the blowing fan 42 and the humidifier 52 are operated by strong winds. This can be understood as a case in which, when the indoor humidity is relatively low, the air conditioner 1 is operated to provide fast humidification air.

As described above, the humidifying unit 50 of the air conditioner 1 according to the present invention raises the absolute humidity of the room air through the evaporation of the humidifying water. In the process of evaporation of the humidification water, the temperature of the room air is lowered. Particularly, when operating in the rapid humidification mode 130, since a relatively large amount of evaporation occurs, the temperature of the indoor air can be lowered to a degree of discomfort to the user.

Therefore, the indoor temperature measured by the temperature sensor 70 can be determined. Specifically, it is determined whether the room temperature is equal to or higher than 22 degrees (140). At this time, 22 degrees can be understood as a temperature at which the user feels discomfort with an exemplary value.

If the room temperature is above 22 degrees, the room humidity and the room temperature are again determined. This is because there is a high possibility that the room temperature is lowered when the air conditioner 1 continuously operates in the rapid humidification mode (130). On the other hand, when the operation mode is the power saving mode 120, the possibility of lowering the room temperature is relatively low.

Accordingly, the indoor humidity and the indoor temperature are continuously monitored to determine the room temperature when entering the rapid-mode humidifying mode 130. [ In addition, even when the apparatus is driven in the power saving and humidifying mode 120, it may be controlled to determine the room temperature after a predetermined time and turn on the heater.

On the other hand, if the room temperature is less than 22 degrees, the heater is turned on (150). As described above, the heater unit 60 can be rotated adjacent to the discharge port 32 when the heater 62 is turned on.

This control flow corresponds to the control according to the room humidity and the room temperature measured by the humidity sensor 70 and the temperature sensor 72. [ Hereinafter, a control flow considering the human body sensor 74 will be described in detail.

6 is a view showing a control flow of the air conditioner according to another embodiment of the present invention. The same portions as those in FIG. 5 are referred to and omitted.

As shown in FIG. 6, the air conditioner 1 is turned on (200), and the humidity of the room measured by the humidity sensor 72 is determined. Also, it is determined whether the room humidity measured by the humidity sensor 72 is 35% or more (210).

When the indoor humidity is 35% or more, the air conditioner 1 is operated in the power saving and humidifying mode 120. On the other hand, when the indoor humidity is less than 35%, the air conditioner 1 is operated in the rapid humidification mode 230.

Also, it is determined whether the room temperature measured by the temperature sensor 70 is 22 degrees or more (240). If the room temperature is less than 22 degrees, the heater is turned on (250).

On the other hand, if the room temperature is equal to or higher than 22 degrees, a range of the optimum airflow speed depending on the temperature is calculated (260). This can be determined based on the PMV (Predicted Mean Vote), which is an indicator of the estimated thermal sensation.

PMV is understood as an index of the thermal environment determined to quantitatively express the influence of the complex elements of the thermal environment on the human body and thereby to provide a simple and accurate range of the comfortable thermal environment.

Specifically, the predicted thermal sensation (PMV) is measured by measuring the temperature, humidity, air flow rate, average radiation temperature, clothing amount, and activity amount, which are factors of the six kinds of warm environment of human and the surrounding environment and assigned to the comfort equation based on the human body thermal equilibrium , Which is an index for theoretically predicting human warmth.

PMV can be calculated by the following equation.

PMV = 0.303 e ^-0.036M + 0.028 {(MW) - 3.05 * 10 ^-3 * [5733 -6.99 (MW) -p _a ] -0.42 * [(MW) -58.15] -1.7 * 10 ^-5 M _{(5867- p a) - 0.0014 M} (34-t a) - 3.96 * 10 - 8 f cl * [(t cl +273) 4 - (t r +273) 4] - f cl h c (t cl - t _a )}

In the above formula, each factor activity (W / m ^2), air temperature, average copy temperature, air velocity (m / s), the water vapor partial pressure (pascals), the convective heat transfer ^{(W / m 2 ° C)} , the surface of the garment Temperature, naked body, and the ratio of the surface area of the human body to the body surface area.

As such, most of the parameters of the PMV correspond to values that are difficult to be changed or measured. Accordingly, in the air conditioner according to the present invention, all other factors of the PMV are calculated to a predetermined constant value, and only the values according to the airflow speed and the air temperature are considered.

In general, when the PMV value falls within the range of -0.5 < PMV < 0.5, it is determined that the user can give the optimal thermal sensation. Accordingly, the range of the airflow velocity can be calculated according to a predetermined temperature value, which is referred to as a 'range of the optimum airflow velocity'.

Further, a human body is sensed through the human body sensor 74, and a distance between the sensed human body and the air conditioner 1 is measured. Then, the measurement airflow velocity according to the measured distance is calculated (270).

As described above, the blowing fan 42 can be operated as a strong wind or a weak wind. At this time, it is understood that a strong wind means a case in which air is discharged at 1 m / s, and a case in which air is discharged in a weak wind at 0.1 m / s. Such values are illustrative and may vary depending on the device and fan performance.

The air conditioner maintains a speed of 1 m / s up to a distance of 0.5 m when air is discharged in a strong wind (1 m / s). However, as the distance increases, the air velocity gradually decreases, 0.7 m / s at a distance of 0.7 m, 0.3 m / s at a distance of 1 m, and 0.15 m / s at a distance of 2 m.

It is determined whether the measured airflow rate thus calculated is included in the range of the optimum airflow rate (280). For example, when the range of the optimum airflow speed is included in the range of the optimum airflow rate, the blowing fan 42 is operated at a strong wind (1 m / s). That is, the operation is continued to the comfortable humidification mode 230.

On the other hand, when the measured air flow rate is not included in the range of the optimum air flow rate, the blowing fan 42 is operated at a weak wind (1 m / s). At this time, the air conditioner 1 is operated in the low-speed operation mode 290 in order to lower the flow rate so that unpleasant air is not supplied to the user.

For example, if the room temperature is 24 degrees, the optimum airflow speed range is calculated at 0.1 m / s to 0.3 m / s. At this time, when it is determined that the human body is located at a distance of 2 m from the human body sensor 74, the air conditioner 1 is continuously operated in the rapid operation mode 230. That is, the air blowing fan 42 is driven at a high speed, so that it is possible to provide comfortable air to the user more quickly.

On the other hand, when it is determined by the human body sensor 74 that the human body is located at a distance of 0.7 m, the air conditioner 1 operates in the low speed operation mode 290. That is, the air blowing fan 42 is driven at a low speed, so that the user can feel uncomfortable airflow.

Accordingly, the air conditioner according to the present invention can provide air having cleanliness, humidity, temperature, and airflow rate that provides comfort to the user.

1: air conditioner 12: inlet
32: discharge port 22: filter unit
40: blowing unit 42: blowing fan
50: humidifying unit 52: humidifier
60: heater unit 62: heater
70: Temperature sensor 72: Humidity sensor
74: Human body detection sensor 80:

Claims (15)

A case having a suction port and a discharge port;
An air blowing unit and a humidification unit disposed inside the case;
A filter unit disposed adjacent to the suction port; And
A heater unit disposed adjacent to the discharge port,
The heater unit is provided with a heater which is turned on / off according to an input of a power source,
Wherein the heater unit is installed in the case so as to be pivotable in a direction adjacent to the discharge port when the heater is turned on and rotatable in a direction away from the discharge port when the heater is turned off. The method according to claim 1,
Wherein the air introduced into the case through the suction port passes through the filter unit, the air blowing unit, the humidification unit, and the heater unit and is discharged to the discharge port when the heater is turned on. The method according to claim 1,
The blowing unit includes a blowing fan operated by a strong wind or a weak wind,
Wherein when the indoor humidity is lower than a predetermined temperature, the air blowing fan operates as a strong wind. The method of claim 3,
Wherein the heater is turned on when the blowing fan is operated with a strong wind and the room temperature is equal to or higher than a predetermined temperature. The method according to claim 1,
Wherein the humidifying unit includes a rotatable humidifier and a tray for storing a predetermined amount of humidifying water so that at least a part of the humidifier is immersed. The method according to claim 1,
Wherein the heater unit is detachably installed in the case. A control method for an air conditioner including a filter unit, an air blowing unit, a humidifying unit, and a heater unit,
The indoor humidity is measured and it is judged whether or not it is lower than a predetermined humidity,
When the humidity is lower than the predetermined humidity, the blowing unit is operated with strong wind,
When the air blowing unit is operated with a strong wind, the indoor temperature is measured to determine whether it is lower than a predetermined temperature,
And the heater unit is arranged such that air flowing by the air blowing unit passes through the filter unit, the humidifying unit and the heater unit in order, when the air temperature is lower than the predetermined temperature. 8. The method of claim 7,
The air passing through the humidifying unit and the blowing unit passes through the heater unit and is discharged through the discharge port,
Wherein the heater unit is rotated toward the discharge port when the temperature is less than the predetermined temperature. 9. The method of claim 8,
The heater unit is rotated toward the discharge port and arranged to correspond to the discharge port,
Wherein power is input to a heater provided in the heater unit to radiate a predetermined heat. 8. The method of claim 7,
If the temperature is equal to or higher than the predetermined temperature,
Wherein the heater unit is disposed at a predetermined distance from the discharge port so that air passing through the humidifying unit and the air blowing unit bypasses the heater unit and is discharged through a discharge port . 8. The method of claim 7,
And calculating a range of the optimum airflow speed according to the measured temperature when the temperature is equal to or higher than the predetermined temperature. 12. The method of claim 11,
A human body around the air conditioner is sensed, a distance to the air conditioner is calculated,
Wherein the measuring air flow rate is calculated according to the distance from the air conditioner when the air blowing unit is operated with a strong wind. 13. The method of claim 12,
Determining whether the measured air flow rate is included in the range of the optimum air flow rate,
Wherein when the measured air flow rate is not included in the range of the optimum air flow rate, the air blowing unit is operated as a weak air flow. 14. The method of claim 13,
Wherein the air blowing unit is operated with a strong wind when the measuring air flow rate is included in the range of the optimum air flow rate. 12. The method of claim 11,
Wherein the range of the optimum airflow speed is determined based on a PMV (Predicted Mean Vote) which is an index indicating a predicted thermal sensation.

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