KR20210049449A - Air conditioner and method for control of air conditioner - Google Patents

Abstract

The present invention relates to an air conditioner and a control method thereof, and to a technology, which uses only minimum energy for lowering indoor humidity during a power-saving cooling operation and increases a perceptible air current through flow paths that are individually separated. An air conditioner according to an embodiment of the present invention comprises: a housing having a first inlet and a second inlet; a main outlet formed in the housing so as to discharge air flowing in through the first inlet; a guide outlet formed to discharge, to the main outlet, the air flowing in through the second inlet; a first flow path allowing the air flowing in through the first inlet to flow to the main outlet; a second flow path and a third flow path which are provided separately from the first flow path, and which allow the air flowing in through the second inlet to flow to the guide outlet; a first blowing device blowing the air flowing in through the first inlet so as to discharge the same through the main outlet; a second blowing device guiding the air flowing in through the second inlet so as to discharge the same to the guide outlet; an indoor temperature sensor sensing indoor temperature; an indoor humidity sensor sensing indoor humidity; a heat exchanger temperature sensor sensing the temperature of a heat exchanger; and a control unit determining a dew point temperature on the basis of the sensed indoor temperature and the sensed indoor humidity, controlling the frequency of a compressor such that the temperature of the heat exchanger is the determined dew point temperature or lower, and controlling the second blowing device such that the air flowing in through the second inlet passes through the second flow path and the third flow path, which are provided separately from the first flow path, so as to be discharged through the guide outlet in a predetermined amount.

Description

Air conditioner and its control method {AIR CONDITIONER AND METHOD FOR CONTROL OF AIR CONDITIONER}

The present invention relates to an air conditioner and a control method thereof, and to a technology for using only a minimum amount of energy to lower indoor humidity during power-saving cooling operation and to increase bodily airflow through a separate flow path.

An air conditioner is a device that keeps indoor air pleasantly suitable for human activities by using a refrigeration cycle. The air conditioner can cool the room by a repetitive action of inhaling hot air in the room, heat exchange with a low-temperature refrigerant, and then discharging it to the room, or can heat the room by the opposite action.

The air conditioner can cool or heat the room by a cooling cycle in which a compressor, a condenser, an expansion valve, and an evaporator are circulated in a forward or reverse direction. The compressor provides a high temperature and high pressure gaseous refrigerant, and the condenser provides a liquid refrigerant at room temperature and high pressure. The expansion valve decompresses the liquid refrigerant at room temperature and high pressure, and the evaporator evaporates the reduced refrigerant into a low temperature gaseous state.

The air conditioner may be divided into a separate air conditioner in which an indoor unit and an outdoor unit are installed separately, and an integrated air conditioner in which an indoor unit and an outdoor unit are installed together in one cabinet. Among them, the indoor unit of the separate air conditioner includes a heat exchanger for exchanging heat of air sucked into the panel, and a blower fan that sucks indoor air into the panel and blows the sucked air back into the room.

Meanwhile, the air conditioner also provides a dehumidifying function as well as a cooling function. The dehumidification function provided by a general air conditioner has a cooling effect, but there are cases where the cooling effect does not accompany the needs of users who only want pure dehumidification.

In recent years, the necessity of power saving in air conditioners is continuously required, and research on a method of cooling operation with minimal power without compromising comfort is being conducted. The disclosed invention relates to a power saving cooling that uses a minimum power of a compressor to remove only indoor moisture and increases a bodily sensation by increasing an air volume by a circulator provided separately from a dehumidifying unit in charge of dehumidification.

The purpose of this is to increase comfort by discharging air by the circulator through a separate flow path independent from the heat exchanger while performing dehumidification using only a minimum amount of energy during the power saving operation of the air conditioner.

An air conditioner according to an embodiment for achieving the above object,

A housing having a first inlet and a second inlet; A main outlet formed in the housing to discharge air flowing into the first inlet; A guide outlet formed to discharge air flowing into the second inlet to the main outlet; A first passage for flowing air introduced through the first inlet to the main outlet; A second passage and a third passage provided separately from the first passage and configured to flow air introduced through the second inlet to the guide outlet; A first blowing device for blowing air so that the air introduced through the first inlet is discharged to the main outlet; A second blowing device for guiding the air introduced through the second inlet to be discharged through the guide outlet; A room temperature sensor that detects a room temperature; An indoor humidity sensor that detects indoor humidity; A heat exchanger temperature sensor for sensing the temperature of the heat exchanger; And determining a dew point temperature based on the sensed indoor temperature and the sensed indoor humidity, controlling a frequency of the compressor such that the temperature of the heat exchanger is equal to or less than the determined dew point temperature, and the air introduced to the second inlet is And a control unit for controlling the second air blower to be discharged with a predetermined air volume through the guide outlet through the second flow path and the third flow path provided separately from the first flow path.

In addition, the frequency of the compressor according to claim 1, further comprising: an input unit for receiving a power saving command input, wherein the control unit comprises: when a power saving command is input from the input unit, the temperature of the heat exchanger is equal to or less than the determined dew point temperature. And control the blower so that air of a predetermined air volume is discharged through the guide outlet.

In addition, when the temperature of the heat exchanger is lower than the dew point temperature by a predetermined value, the control unit decreases the compressor frequency, and when the temperature of the heat exchanger exceeds the dew point temperature, the controller increases the compressor frequency to increase the frequency of the heat exchanger. The temperature can be maintained below the dew point temperature.

In addition, the first blowing device includes a first blowing fan for blowing air introduced through the first inlet, and the control unit stops rotation of the first blowing fan when a power saving command is inputted from the input unit. Or, the first blowing fan may be controlled to rotate at a predetermined minimum rotational speed.

In addition, the second blowing device includes a second blowing fan for blowing the air introduced through the second inlet, and the control unit, when a power saving command is inputted from the input unit, a predetermined amount of air through the guide outlet. The rotation speed of the second blowing fan may be adjusted so that air is discharged.

In addition, the guide outlet includes a first guide outlet formed to be discharged so that a part of the air introduced through the second inlet is mixed with the air discharged from the main outlet and another part of the air introduced through the second inlet. And a second guide outlet formed to be discharged so as to be mixed with the air discharged from the main outlet, the first guide outlet is disposed at one side of the main outlet, and the second guide outlet is one of the main outlet. It may be disposed on the other side opposite to the side.

In addition, a distribution device for controlling a flow rate of air discharged through the first guide outlet and the second guide outlet, wherein the distribution device includes, wherein the air introduced to the second inlet port is discharged from the first guide outlet and It may be disposed in a portion of the housing branching toward the second guide outlet.

In addition, the heat exchanger is disposed between the first inlet and the main outlet, the main outlet is disposed to discharge air that has been heat-exchanged with the heat exchanger, and the first guide outlet and the second guide outlet are arranged to provide the heat exchange It can be arranged to exhaust air that has not passed through the air.

In addition, the second blowing device may be driven independently of the first blowing device.

In addition, the air conditioner control method according to an embodiment for achieving the above object,

A housing having a first inlet and a second inlet, a main outlet formed in the housing to discharge air flowing into the first inlet, a first guide formed to discharge air flowing into the second inlet to the main outlet An outlet and a second guide outlet, a first passage for flowing the air introduced through the first inlet to the main outlet, provided separately from the first passage, and the air introduced through the second inlet may be transferred to the first guide outlet and A second flow path and a third flow path flowing to the second guide outlet, a first blowing device for blowing air so that the air introduced through the first inlet is discharged to the main outlet, and the air introduced through the second inlet are the first A method for controlling an air conditioner comprising a guide outlet and a second blower for guiding discharge to the second guide outlet, the method comprising: sensing an indoor temperature; Detecting indoor humidity; Sensing the temperature of the heat exchanger; Determining a dew point temperature based on the sensed indoor temperature and the sensed indoor humidity; Controlling the frequency of the compressor so that the temperature of the heat exchanger is equal to or less than the determined dew point temperature; The second blowing air so that the air introduced into the second inlet is discharged at a predetermined air volume through the first guide outlet and the second guide outlet through the second and third channels provided separately from the first passage. Control the device.

In addition, receiving a power saving command; further comprising, when the power saving command is input, controlling the frequency of the compressor so that the temperature of the heat exchanger is less than the determined dew point temperature, and the first guide outlet and the first The blower can be controlled so that air of a predetermined air volume is discharged through the 2-guide outlet.

In addition, controlling the frequency of the compressor may include decreasing the compressor frequency when the temperature of the heat exchanger is lower than the dew point temperature by a predetermined value, and increasing the compressor frequency when the temperature of the heat exchanger exceeds the dew point temperature. To maintain the temperature of the heat exchanger below the dew point temperature.

In addition, when the power saving command is input, stopping rotation of the first blowing fan included in the first blowing device or controlling the first blowing fan to rotate at a predetermined minimum rotational speed; may further include have.

In addition, when the power saving command is input, adjusting the number of rotations of the second blowing fan included in the second blowing device so that air of a predetermined air volume is discharged through the first guide outlet and the second guide outlet; It may further include.

In addition, it may further include; adjusting the flow rate of the air discharged through the first guide outlet and the second guide outlet.

In addition, it may include; driving the second blowing device independently of the first blowing device.

Energy saving is realized by performing dehumidification that lowers the humidity of the room using only minimal energy during power-saving operation of the air conditioner, and at the same time, air by the circulator is discharged through a separate flow path separate from the heat exchanger to enhance the sensed airflow. By increasing comfort, there is an effect that you can stay comfortable with less energy.

1 is a view showing an air conditioner according to an embodiment.
FIG. 2 is an exploded view of the air conditioner shown in FIG. 1.
FIG. 3 is a diagram illustrating a cross section taken along line A-A' shown in FIG. 1 when the air conditioner shown in FIG. 1 operates in a first mode.
FIG. 4 is a diagram illustrating a cross section taken along line A-A' shown in FIG. 1 when the air conditioner shown in FIG. 1 operates in a second mode.
FIG. 5 is a diagram illustrating a cross section taken along line A-A' shown in FIG. 1 when the air conditioner shown in FIG. 1 operates in a third mode.
6 is a view showing a part of a cross section taken along line B-B' shown in FIG. 1 when the air conditioner shown in FIG. 1 operates in a third mode and provides a central airflow.
7 is a diagram illustrating a state in which an air conditioner having a distribution device according to an embodiment operates in a third mode and provides a central airflow.
8 is a control block diagram of an air conditioner according to an embodiment.
9 is a flowchart illustrating a control flow of an air conditioner according to an embodiment.
10 is a diagram illustrating that power saving dehumidifying cooling of the air conditioner is performed according to the control method of the air conditioner according to an embodiment.

The embodiments described in the present specification and the configurations shown in the drawings are only preferred examples of the disclosed invention, and there may be various modified examples that can replace the embodiments and drawings of the present specification at the time of filing of the present application.

In addition, the same reference numerals or reference numerals shown in each drawing of the present specification indicate parts or components that perform substantially the same function.

In addition, terms used herein are used to describe the embodiments, and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It does not preclude the presence or addition of elements, numbers, steps, actions, components, parts, or combinations thereof.

In addition, the term'unit, module, member, block' used in this specification may be implemented in software or hardware, and a plurality of'units, modules, members, blocks' may be used as one component according to embodiments. It may be implemented, or one'unit, module, member, block' may include a plurality of components. In addition, throughout the specification, when a part is said to be "connected" with another part, this includes not only the case of being directly connected, but also the case of being indirectly connected, and the indirect connection is connected through a wireless communication network. Includes that.

In addition, terms including ordinal numbers such as "first" and "second" used in the present specification may be used to describe various elements, but the elements are not limited by the terms, and the terms are It is used only for the purpose of distinguishing one component from other components. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. The term "and/or" includes a combination of a plurality of related described items or any of a plurality of related described items.

Meanwhile, the terms "front", "upper", "lower", "left" and "right" used in the following description are defined based on the drawings, and the shape and position of each component are limited by this term. It does not become.

The refrigeration cycle constituting the air conditioner consists of a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle may circulate through a series of processes consisting of compression-condensation-expansion-evaporation, and supply conditioned air that is heat exchanged with a refrigerant.

The compressor compresses and discharges the refrigerant gas in a state of high temperature and high pressure, and the discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase and releases heat to the surroundings through the condensation process.

The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into the low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas at low temperature and low pressure to the compressor. The evaporator can achieve a refrigeration effect by heat exchange with the object to be cooled by using the latent heat of evaporation of the refrigerant. Through this cycle, the air conditioner can control the temperature of the indoor space.

The outdoor unit of the air conditioner refers to a part of the cooling cycle consisting of a compressor and an outdoor heat exchanger. The indoor unit of the air conditioner includes an indoor heat exchanger, and the expansion valve may be in either the indoor unit or the outdoor unit. Indoor heat exchangers and outdoor heat exchangers act as condensers or evaporators. When an indoor heat exchanger is used as a condenser, the air conditioner becomes a heater, and when used as an evaporator, the air conditioner becomes a cooler.

Hereinafter, an air conditioner and a control method thereof will be described in detail with reference to the accompanying drawings according to embodiments described below. In the drawings, the same reference numerals denote the same components, and redundant descriptions thereof will be omitted.

1 is a view showing an air conditioner according to an embodiment. FIG. 2 is an exploded view of the air conditioner shown in FIG. 1. FIG. 3 is a diagram illustrating a cross section taken along line A-A' shown in FIG. 1 when the air conditioner shown in FIG. 1 operates in a first mode. FIG. 4 is a view showing a cross section taken along line A-A' shown in FIG. 1 when the air conditioner shown in FIG. 1 operates in a second mode. FIG. 5 is a diagram illustrating a cross section taken along line A-A' shown in FIG. 1 when the air conditioner shown in FIG. 1 operates in a third mode. 6 is a view showing a part of a cross section taken along line B-B' shown in FIG. 1 when the air conditioner shown in FIG. 1 operates in a third mode and provides a central airflow.

1 and 2, the air conditioner 1 includes a housing 10 forming an exterior, a blower 20 for circulating air inside or outside the housing 10, and a housing 10. It may include a heat exchanger 30 for exchanging heat with the air introduced into the interior of the.

The housing 10 may include a body case 11 in which the blower 20 and the heat exchanger 30 are mounted, and a front panel 16 covering the front surface of the body case 11. The housing 10 may include a first inlet 12, a second inlet 15, a main outlet 17 and guide outlets 13 and 14.

The body case 11 may form a rear surface, both side surfaces, an upper surface and a bottom surface of the air conditioner 1. The front of the body case 11 is open, and the opened front may form a body case opening 11a, and the body case opening 11a may be covered by the front panel 16 and the discharge panel 40. have.

The front panel 16 may be coupled to the body case opening 11a. In FIG. 2, the front panel 16 is shown to be detachably provided from the body case 11, but the front panel 16 and the body case 11 may be integrally formed.

A main outlet 17 may be formed in the front panel 16. The main outlet 17 may be disposed on the front surface of the housing 10. The main outlet 17 may pass through the front panel 16. The main outlet 17 may be formed on the front panel 16. The main outlet 17 may be disposed at a position substantially facing the first inlet 12. Air heat-exchanged inside the housing 10 may be discharged to the outside of the housing 10 through the main outlet 17. The main outlet 17 may discharge air introduced through the first inlet 12.

A panel support member 17a supporting the discharge panel 40 may be formed at a portion of the front panel 16 in which the main outlet 17 is formed. The panel support member 17a may extend along the circumference of the first outlet. The panel support member 17a may support the rear surface of the discharge panel 40.

A first inlet 12 may be formed in the body case 11. The first inlet 12 may pass through the rear surface of the body case 11. The first inlet 12 may be formed on the rear surface of the body case 11. External air may be introduced into the housing 10 through the first inlet 12.

2 shows that two first inlets 12 are provided, but the number of first inlets 12 is not limited thereto, and may be provided in various ways as necessary. 2 illustrates that the first inlet 12 is formed in a square shape, the shape of the first inlet 12 is not limited thereto, and may be variously formed as necessary.

A second inlet 15 may be formed in the body case 11. The second inlet 15 may pass through the rear surface of the body case 11. The second inlet 15 may be formed under the rear surface of the body case 11. The second inlet 15 may be formed under the first inlet 12. External air may be introduced into the housing 10 through the second inlet 15.

Like the first inlet 12, the number and/or shape of the second inlet 15 may be provided in various ways as necessary.

The front panel 16 may form guide outlets 13 and 14 together with the discharge panel 40. The guide outlets 13 and 14 may be formed on the same surface as the main outlet 17. The guide outlets 13 and 14 may be formed on the left side and/or the right side of the main outlet 17. The guide outlets 13 and 14 may be disposed adjacent to the main outlet 17. The guide outlets 13 and 14 may be disposed to be spaced apart from the main outlet 17 by a predetermined distance. The guide outlets 13 and 14 may include a first guide outlet 13 disposed on the left side of the main outlet 17 and a second guide outlet 14 disposed on the right side of the main outlet 17.

The guide outlets 13 and 14 may extend along the vertical direction of the body case 11. The guide outlets 13 and 14 may have approximately the same length as the length of the main outlet 17. Air that is not heat-exchanged inside the housing 10 may be discharged to the outside of the housing 10 through the guide outlets 13 and 14. The guide outlets 13 and 14 may be provided to discharge air introduced through the second inlet 15.

The guide outlets 13 and 14 may be configured to mix air discharged from the guide outlets 13 and 14 with the air discharged from the main outlet 17. Specifically, a portion of the front panel 16 forming the guide outlets 13 and 14 includes a guide outlet 13 so that the air discharged from the guide outlets 13 and 14 is mixed with the air discharged from the main outlet 17. It may include a guide curved portion (13a, 14a, see Fig. 3) for guiding the air discharged from 14).

The air discharged through the guide discharge ports 13 and 14 may be discharged in a direction capable of mixing with the air discharged from the main discharge port 17 along the guide curved portions 13a and 14a. The guide curved portions 13a and 14a may guide the air discharged through the guide discharge ports 13 and 14 to be discharged in approximately the same direction as the air discharged through the main discharge port 17. The guide curved portions 13a and 14a may be provided to guide air discharged through the guide outlets 13 and 14 forward.

Blades 61 and 62 (see FIG. 3) for guiding air discharged through the guide discharge ports 13 and 14 may be provided on the guide discharge ports 13 and 14. The blades 61 and 62 may be continuously disposed along the longitudinal direction of the guide outlets 13 and 14. The first blade 61 may be disposed in the first guide outlet 13, and the second blade 62 may be disposed in the second guide outlet 14.

A flow path of air connecting the first inlet 12 and the main outlet 17 is referred to as a first flow path S1, and a flow path of air connecting the second inlet 15 and the first guide outlet 13 is defined. It is referred to as a 2 flow path S2, and a flow path of air connecting the second inlet 15 and the second guide outlet 14 is referred to as a third flow path S3. Here, the first flow path S1 may be partitioned from the second flow path S2 and the third flow path S3. Accordingly, the air flowing through the first flow path S1 may not be mixed with the air flowing through the second flow path S2 and the third flow path S3. Some sections of the second flow path S2 and the third flow path S3 may overlap. Specifically, the second flow path S2 and the third flow path S3 may have a common section from the second inlet 15 to the second blower 26.

A first duct 18 partitioning the first flow path S1 and the second flow path S2 may be disposed inside the housing 10. The first duct 18 may be disposed on the left side of the first blowing device 21. The first duct 18 may extend along the vertical direction. The first duct 18 may communicate with the second blower 26. The first duct 18 may communicate with the fan outlet 29a of the second blower 26. The first duct 18 may guide part of the air blown by the second blower 26 to the first guide outlet 13. A first duct filter (not shown) may be provided in the first duct 18 to filter foreign substances of air introduced from the second blower 26.

A second duct 19 partitioning the first flow path S1 and the third flow path S3 may be disposed inside the housing 10. The second duct 19 may be disposed on the right side of the first blowing device 21. The second duct 19 may extend in the vertical direction. The second duct 19 may communicate with the second blower 26. The second duct 19 may communicate with the fan outlet 29a of the second blower 26. The second duct 19 may guide part of the air blown by the second blower 26 to the second guide outlet 14. A second duct filter 19a may be provided in the second duct 19 to filter foreign substances of air introduced from the second blower 26.

The air conditioner 1 allows air that has been heat-exchanged with the heat exchanger 30 through the main outlet 17 to be discharged, and air that has not passed through the heat exchanger 30 through the guide outlets 13 and 14. can do. That is, the guide outlets 13 and 14 may be provided to discharge air that has not been heat-exchanged. Since the heat exchanger 30 is disposed on the first flow path S1, air discharged through the main outlet 17 may be heat-exchanged air. Since the heat exchanger is not disposed on the second flow path S2 and the third flow path S3, air discharged through the guide outlets 13 and 14 may be air that has not been heat exchanged.

Meanwhile, in another embodiment, it may be provided to discharge the heat-exchanged air through the guide outlets 13 and 14. That is, the heat exchanger may also be disposed on the second flow path S2 and the third flow path S3. Specifically, a heat exchanger for exchanging heat of air discharged through the guide outlets 13 and 14 may be disposed in the receiving space 11b of the body case 11. According to this configuration, the air conditioner 1 may provide heat-exchanged air through both the main outlet 17 and the guide outlets 13 and 14.

The body case 11 may have a shape in which a cross section along a horizontal direction becomes wider toward a lower side. According to this shape, the housing 10 may be stably supported against the floor.

An accommodation space 11b in which electrical equipment (not shown) may be disposed may be formed inside the body case 11. Electrical equipment necessary for driving the air conditioner 1 may be disposed in the accommodation space 11b. A second blowing device 26 may be disposed in the accommodation space 11b.

The blowing device 20 may include a first blowing device 21 and a second blowing device 26. The second blowing device 26 may be provided to be driven independently from the first blowing device 21. The rotation speed of the second blowing device 26 may be provided to be different from the rotation speed of the first blowing device 21.

The first blower 21 may be disposed on the first flow path S1 formed between the first inlet 12 and the main outlet 17. Air may be introduced into the housing 10 through the first inlet 12 by the first blowing device 21. Air introduced through the first inlet 12 may move along the first flow path S1 and be discharged to the outside of the housing 10 through the main outlet 17. The first blowing device 21 may include a first blowing fan 22 and a first fan driving unit 23.

The first blowing fan 22 may be an axial fan or a four-flow fan. However, the type of the first blowing fan 22 is not limited thereto, and the first blowing fan 22 is configured to flow so that the air introduced from the outside of the housing 10 is discharged to the outside of the housing 10 again. Satisfies. For example, the first blowing fan 22 may be a cross fan, a turbo fan, or a sirocco fan.

In FIG. 2, it is shown that three first blowing fans 22 are provided, but the number of the first blowing fans 22 is not limited thereto, and may be provided in various numbers as necessary.

The first fan driving unit 23 may drive the first blowing fan 22. The first fan driving unit 23 may be disposed in the center of the first blowing fan 22. The first fan driving unit 23 may include a motor.

The second blower 26 may be disposed on the second flow path S2 and the third flow path S3 formed between the second inlet 15 and the guide outlets 13 and 14. Air may be introduced into the housing 10 through the second inlet 15 by the second blowing device 26. Part of the air introduced through the second inlet 15 moves along the second flow path S2 and is discharged to the outside of the housing 10 through the first guide outlet 13 or along the third flow path S3. It may move and be discharged to the outside of the housing 10 through the second guide outlet 14. The second blowing device 26 may be implemented as a circulator according to an embodiment.

Referring to FIG. 6, the second blowing device 26 may include a second blowing fan 27, a second fan driving unit 28, and a fan body case 29.

The second blowing fan 27 may be a centrifugal fan. However, the type of the second blowing fan 27 is not limited thereto, and the second blowing fan 27 is configured to flow so that the air introduced from the outside of the housing 10 is discharged to the outside of the housing 10 again. Satisfies. For example, the second blowing fan 27 may be a cross fan, a turbo fan, or a sirocco fan.

In FIG. 2, it is shown that two second blowing fans 27 are provided, but the number of the second blowing fans 27 is not limited thereto, and may be provided in various numbers as needed.

The second fan driving unit 28 may drive the second blowing fan 27. The second fan driving unit 28 may be disposed in the center of the second blowing fan 27. The second fan driving unit 28 may include a motor.

The fan body case 29 may cover the second blowing fan 27. The fan body case 29 may include a fan inlet (not shown) through which air is introduced and a fan outlet 29a through which air is discharged. Positions of the fan inlet and the fan outlet 29a may be determined corresponding to the type of the second blowing fan 27.

The heat exchanger 30 may be disposed between the first blower 21 and the first inlet 12. The heat exchanger 30 may be disposed on the first flow path S1. The heat exchanger 30 may absorb heat from air introduced through the first inlet 12 or transfer heat to the air introduced through the first inlet 12. The heat exchanger 30 may include a tube and a header coupled to the tube. However, the type of the heat exchanger 30 is not limited thereto.

The air conditioner 1 may include an exhaust panel 40 disposed on a portion of the front panel 16 on which the main outlet 17 is formed. The discharge panel 40 may have a plurality of discharge holes so that air discharged from the main discharge port 17 is discharged more slowly than air discharged from the guide discharge ports 13 and 14. The plurality of discharge holes may pass through the inner and outer surfaces of the discharge panel 40. The plurality of discharge holes may have a fine size. The plurality of discharge holes may be uniformly distributed over the entire area of the discharge panel 40. Heat-exchanged air discharged through the main discharge port 17 by the plurality of discharge holes may be uniformly discharged at low speed. A blocking part 40a in which a plurality of discharge holes are not formed may be provided at the lower end of the discharge panel 40.

The air conditioner 1 may include a first suction grill 51 coupled to a portion of the body case 11 in which the first inlet 12 is formed. The first suction grill 51 may be provided so that foreign matter does not flow through the first inlet 12. To this end, the first suction grill 51 may include a plurality of slits or holes. The first suction grill 51 may be provided to cover the first inlet 12.

The air conditioner 1 may include a second suction grill 52 coupled to a portion of the body case 11 in which the second inlet 15 is formed. The second suction grill 52 may be provided so that foreign matter does not flow through the second inlet 15. To this end, the second suction grill 52 may include a plurality of slits or holes. The second suction grill 52 may be provided to cover the second inlet 15.

The air conditioner 1 may include an exhaust grill 53 coupled to a portion of the front panel 16 in which the first outlet 17 is formed. The discharge grill 53 may be mounted on the panel support member 17a. The discharge grill 53 may be provided so that foreign substances are not discharged through the first discharge port 17. To this end, the discharge grill 53 may include a plurality of slits or holes. The discharge grill 53 may be provided to cover the first discharge port 17.

With reference to FIGS. 3 to 5, the driving of the air conditioner 1 will be described.

First, referring to FIG. 3, the air conditioner 1 may be driven in a first mode in which heat-exchanged air is discharged only through the main outlet 17. Since the discharge panel 40 is disposed at the main discharge port 17, air conditioning can be performed slowly throughout the room. That is, when air is discharged to the outside of the housing 10 through the main discharge port 17, the air passes through a plurality of discharge holes of the discharge panel 40, and the wind speed is reduced, so that the air may be discharged at a low speed. According to this configuration, the user can cool or heat the room at a wind speed that feels comfortable.

Specifically, as the first blower 21 is driven, external air of the housing 10 may be introduced into the housing 10 through the first inlet 12. Air introduced into the interior of the housing 10 may be heat exchanged through the heat exchanger 30. The air that has been heat-exchanged while passing through the heat exchanger (30) passes through the first blower (21), passes through the discharge panel (40), and goes to the outside of the housing (10) through the main discharge port (17) in a reduced speed state. Can be discharged. That is, the heat-exchanged air discharged through the first flow path S1 may be discharged at a wind speed at which a user can feel comfortable.

Since the second blower 26 is not driven in the first mode, air is not discharged through the guide outlets 13 and 14.

Referring to FIG. 4, the air conditioner 1 may be driven in a second mode in which air that has not been heat exchanged is discharged through only the guide outlets 13 and 14. Since the heat exchanger is not disposed on the second flow path S2 and the third flow path S3, the air conditioner 1 can circulate indoor air.

Since the guide discharge ports 13 and 14 are provided with guide curved portions 13a and 14a, air discharged through the guide discharge ports 13 and 14 may be discharged to the front of the air conditioner 1. Since the blades 61 and 62 are provided on the guide outlets 13 and 14, the air can be blown farther toward the front.

Specifically, as the second blower 26 is driven, external air of the housing 10 may be introduced into the housing 10 through the second inlet 15. The air introduced into the interior of the housing 10 passes through the second blower 26 and then moves to the second flow path S2 and the third flow path S3 respectively formed on both sides of the first flow path S1. I can. After the air moves upward in the second flow path S2 and the third flow path S3, the air may be discharged to the outside of the housing 10 through the guide outlets 13 and 14. In this case, the air may be guided to the front of the air conditioner 1 along the guide curved portions 13a and 14a.

Since the first blower 21 is not driven in the second mode, air is not discharged through the main outlet 17. That is, in the second mode, since the air conditioner 1 blows air that has not been heat exchanged, it can simply circulate indoor air or provide strong wind to the user.

Referring to FIG. 5, the air conditioner 1 may be driven in a third mode for discharging heat-exchanged air through the main outlet 17 and the guide outlets 13 and 14. The air conditioner 1 can discharge cool air farther when driven in the third mode than when driven in the first mode.

Specifically, when the air conditioner 1 is driven in the third mode, cold air or warmth discharged through the main outlet 17 and air discharged through the guide outlets 13 and 14 may be mixed. In addition, since the air discharged through the guide discharge ports 13 and 14 is discharged at a faster rate than the air discharged through the main discharge port 17, the air discharged through the guide discharge ports 13 and 14 is the main discharge port 17 The heat-exchanged air discharged through can be moved farther.

According to this configuration, the air conditioner 1 can provide a user with pleasant cool air or warmth in which heat-exchanged air and indoor air are mixed.

In addition, the air conditioner 1 may be provided to provide cool air at various distances by changing the driving force of the first blowing device 21 and/or the second blowing device 26. That is, the first blowing device 21 may be configured to be able to adjust the air volume and/or the wind speed of the air discharged through the main outlet 17, and the second blowing device 26 is the guide outlets 13 and 14 It may be configured to be able to adjust the air volume and / or wind speed of the air discharged through.

For example, when increasing the driving force of the second blower 26 to increase the air volume and/or wind speed of the air discharged from the guide outlets 13 and 14, the air conditioner 1 collects heat-exchanged air. You can move it further. On the other hand, when reducing the driving force of the second blower 26 to reduce the air volume and/or the wind speed of the air discharged from the guide outlets 13 and 14, the air conditioner 1 reduces the heat exchanged air at a relatively short distance. Can be provided to.

6 is a view showing a part of a cross section taken along line B-B' shown in FIG. 1 when the air conditioner shown in FIG. 1 operates in a third mode and provides a central airflow.

2 and 6, the air conditioner 1 may include a distribution device 110. The dispensing device 110 may be disposed inside the housing 10. The distribution device 110 may be disposed in the receiving space 11b of the body case 11. The distribution device 110 may be disposed adjacent to the fan outlet 29a of the second blower 26. The distribution device 110 may be disposed at a portion where air introduced from the second inlet 15 diverges toward the first guide outlet 13 and the second guide outlet 14. The distribution device 110 may be disposed between the first inlet 12 and the second inlet 15. The distribution device 110 may be configured to distribute the air blown by the second blower 26 to the first duct 18 and the second duct 19. The distribution device 110 may be configured to adjust the flow rate of air discharged through the first guide outlet 13 and the second guide outlet 14.

The distribution device 110 may include a distribution case 111 mounted on the body case 11. The distribution case 111 includes a distribution inlet 112 connected to the second blower 26, a first distribution outlet 113 connected to the first duct 18, and the second duct 19. It may include a second distribution outlet 114. The distribution case 111 may be formed to distribute air introduced through the distribution inlet 112 to the first distribution outlet 113 and the second distribution outlet 114.

The distribution inlet 112 may be formed as the bottom surface of the distribution case 111 is opened. The distribution inlet 112 may communicate with the fan outlet 29a of the second blower 26. Air blown by the second blowing device 26 may be introduced into the distribution device 110 through the distribution inlet 112.

The first distribution outlet 113 may be formed as a part of the upper surface of the distribution case 111 is opened. The first distribution outlet 113 may communicate with the first duct 18. Part of the air introduced into the distribution device 110 through the distribution inlet 112 may be discharged to the first duct 18 through the first distribution outlet 113.

The second distribution outlet 114 may be formed as another part of the upper surface of the distribution case 111 is opened. The second distribution outlet 114 may communicate with the second duct 19. Another part of the air introduced into the distribution device 110 through the distribution inlet 112 may be discharged to the second duct 19 through the second distribution outlet 114.

The distribution device 110 includes a damper 115, a damper driving source 116, and a power transmission member 117 to adjust the amount of air discharged to the first duct 18 and the second duct 19. can do.

The damper 115 may be provided to be movable on a path through which air introduced through the distribution inlet 112 moves to the first distribution outlet 113 and the second distribution outlet 114.

That is, the damper 115 may be positioned at a position to block at least a part of the second flow path S2 formed between the second inlet 15 and the first guide outlet 13, and the damper 115 is distributed It may be located at a position blocking at least a portion of the flow path connecting the inlet 112 and the first distribution outlet 113.

In addition, the damper 115 may be located at a position that blocks at least a part of the third flow path S3 formed between the second inlet 15 and the second guide outlet 14, and the damper 115 is distributed It may be located at a second position blocking at least a portion of the flow path connecting the inlet 112 and the second distribution outlet 114.

The damper driving source 116 may generate power for moving the damper 115. The damper drive source 116 may include a motor.

The power transmission member 117 may transmit power generated from the damper driving source 116 to the damper 115. In FIG. 6, the power transmission member 117 is shown to include a rack gear formed on the damper 115 and a pinion gear connected to the damper driving source 116, but the power of the damper driving source 116 is reduced to the damper 115 ), any configuration is not limited.

According to this configuration, when the air conditioner 1 attempts to discharge air that has been heat-exchanged to the center as shown in FIG. 5, the damper 115 may be located between the first position and the second position. Accordingly, the air blown from the second blower 26 is distributed approximately uniformly to the first duct 18 and the second duct 19, and accordingly, the first guide outlet 13 and the second guide outlet The amount of air exhausted through (14) can be approximately the same.

7 is a diagram illustrating a state in which an air conditioner having a distribution device according to an embodiment operates in a third mode and provides a central airflow.

Referring to FIG. 7, a distribution device 140 according to another embodiment of the present invention may include a distribution case 141 mounted on the body case 11. The distribution case 141 is connected to a distribution inlet (not shown) connected to the second blower 26, a first distribution outlet 143 connected to the first duct 18, and a second duct 19 It may include a second distribution outlet (144). The distribution case 141 may be formed to distribute air introduced through the distribution inlet to the first distribution outlet 143 and the second distribution outlet 144.

The distribution device 140 may include a first damper 145 disposed in the first duct 18 and a second damper 146 disposed in the second duct 19. The first damper 145 may be rotatably provided in the first duct 18, and the second damper 146 may be rotatably provided in the second duct 19. The first damper 145 and the second damper 146 may be provided to be rotatable with respect to the housing 10. The first damper 145 may be provided to rotate about a rotation axis along the width direction of the first guide outlet 13. The second damper 146 may be provided to rotate about a rotation axis along the width direction of the second guide outlet 14. The first damper 145 may be provided to block at least a part of the first guide outlet 13. The second damper 146 may be provided to block at least a part of the second guide outlet 14. The first damper 145 and the second damper 146 may be operated independently. A plurality of first dampers 145 may be disposed along a direction in which the first guide outlet 13 is extended. A plurality of second dampers 146 may be disposed along a direction in which the second guide outlet 14 extends.

When the air conditioner 1 is operated in the third mode as shown in FIG. 5 and forms a central airflow, the first damper 145 opens the first guide outlet 13 and the second damper 146 ) May open the second guide outlet 14. Accordingly, the amount of air discharged through the first guide discharge port 13 and the amount of air discharged through the second guide discharge port 14 are approximately the same, and thus, the air conditioner 1 is at the main discharge port 17 The exhausted heat exchanged air can be discharged to the center.

8 is a control block diagram of an air conditioner according to an embodiment. 9 is a flowchart illustrating a control flow of an air conditioner according to an embodiment. 10 is a diagram illustrating that power saving dehumidifying cooling of the air conditioner is performed according to the control method of the air conditioner according to an exemplary embodiment.

Referring to FIG. 8, the air conditioner 1 according to an embodiment includes an indoor temperature sensor 50 for detecting indoor temperature, an indoor humidity sensor 60 for detecting indoor humidity, and a heat exchanger for detecting the temperature of a heat exchanger. The temperature sensor 70, the input unit 80 for receiving a command related to the operation of the air conditioner 1, a storage unit 90 for storing data related to the control of the air conditioner 1, the air conditioner ( It further includes a control unit 100 for overseeing the operation of 1) and a compressor 120 for compressing the refrigerant into a gas of high temperature and high pressure.

The air conditioner 1 according to an embodiment may perform dehumidification in addition to cooling and heating. When a dehumidification command is input from the user, the controller 100 drives the compressor 120 to reduce the temperature of the heat exchanger 30 to below the dew point temperature to perform dehumidification. The controller 100 determines whether the temperature of the indoor heat exchanger falls below the dew point temperature based on the temperature detected by the evaporator temperature sensor.

Air including moisture introduced through the inlet of the indoor unit is cooled down while passing through the heat exchanger 30 cooled below the dew point temperature. When the temperature of the air falls below the dew point temperature, moisture in the air is converted into water and removed from the air, and the air from which the moisture is removed is discharged back into the room by a blower fan. Through this process, indoor humidity is reduced. The air conditioner 1 operates the compressor 120 to circulate the refrigerant so that the indoor humidity falls within a predetermined range so that the user feels comfortable, and drives the blower fan.

Unlike general dehumidifiers, cooling is involved in the dehumidification process of the air conditioner 1.

On the other hand, in order to lower the temperature of the heat exchanger 30 in order to perform dehumidification, the amount of air through the blowing fan should be controlled to a small extent. That is, when the air volume of the blowing fan increases, the cold air of the heat exchanger 30 is discharged into the room and the temperature of the heat exchanger 30 increases, so that dehumidification is not performed properly.

Accordingly, in order to increase the air volume of the blowing fan and to effectively perform dehumidification, the number of rotations of the compressor 120 must be increased, and as a result, energy consumption of the air conditioner 1 increases.

On the other hand, when the air volume of the blowing fan is reduced, the sensational airflow discharged from the air conditioner 1 decreases, so that the user's discomfort increases.

According to the air conditioner 1 and the control method thereof according to an embodiment of the disclosed invention, the relative humidity in the room is reduced by controlling the compressor 120 with a minimum number of revolutions to perform dehumidification, and the heat exchanger 30 By increasing the haptic airflow through the second airflow device 26 having a flow path separated from the flow path, it is possible to secure comfort with a minimum amount of energy.

8 and 9, a user may input a power saving command of the air conditioner 1 through the input unit 80 (1000). In this case, the received power saving command is a control command for power saving cooling of the air conditioner 1, and may include a dehumidification command to perform a dehumidification operation.

The input unit 80 may include a button type switch, a membrane switch, or a touch panel for receiving an operation command for the air conditioner 1. However, since a remote controller (not shown) that receives operation and operation commands for the air conditioner 1 and displays operation information of the air conditioner 1 may be included, the input unit of the air conditioner 1 ( 80) may include only a power button (not shown) that supplies power to the air conditioner 1.

The input unit 80 is a driving mode requested by the user (for example, a wind speed mode or air volume mode such as high, medium, weak, turbo, etc., an automatic mode or a manual mode, cooling, dehumidification, blowing, heating, comfort control mode, etc. Function mode, etc.), start or stop of operation, desired temperature, and set wind direction, etc., including a number of keys on the front panel or remote control provided on the air conditioner (1) for data input. can do. In addition, the input unit 80 may receive information on at least one of an indoor temperature and an indoor humidity of an area in which the air conditioner 1 is located from a user. That is, the user may set a desired temperature for the indoor temperature of the area where the air conditioner 1 is located through the input unit 80 and may set the desired humidity for the indoor humidity. When the indoor temperature or indoor humidity sensed by the operation of the air conditioner 1 is changed, the user can set a new desired temperature or desired humidity through the input unit 80. In addition, the input unit 80 may receive data on a driving cycle, a driving type, and a driving time related to the cooling operation of the air conditioner 1.

Meanwhile, in addition to receiving a power saving command from the user through the input unit 80, the air conditioner 1 automatically operates power saving cooling or dehumidifying when it reaches the condition to perform power saving cooling or dehumidification operation according to a preset setting value. You can do it.

The room temperature sensor 50 may detect the room temperature (1010). The indoor temperature sensor 50 may be installed anywhere in a position capable of sensing the temperature of indoor air in which the air conditioner 1 is installed.

The indoor humidity sensor 60 may detect indoor humidity (1020). The indoor humidity sensor 60 may be installed at any location where the air conditioner 1 is installed and can sense the humidity of the room.

In addition, the heat exchanger temperature sensor 70 may detect the temperature of the heat exchanger 30 (1030 ). The heat exchanger temperature sensor 70 may be installed anywhere in a position capable of sensing the temperature of the heat exchanger 30 provided in the air conditioner 1.

The controller 100 determines the dew point temperature based on the indoor temperature sensed by the indoor temperature sensor 50 and the indoor humidity sensed by the indoor humidity sensor 60, and the determined dew point temperature and the heat exchanger temperature sensor 70 The frequency of the compressor 120 is controlled so that the temperature of the heat exchanger 30 is equal to or less than the determined dew point based on the temperature of the heat exchanger 30 sensed by the first guide outlet 13 and the second guide. The second blowing device 26 may be controlled so that air of a predetermined air volume is discharged through the discharge port 14.

Referring to FIG. 9, the controller 100 calculates the dew point temperature based on the indoor temperature sensed by the indoor temperature sensor 50 and the indoor humidity sensed by the indoor humidity sensor 60. The dew point temperature can be determined (1040).

The controller 100 may control the frequency of the compressor 120 so that the temperature of the heat exchanger 30 is equal to or less than the determined dew point temperature.

That is, the control unit 100 compares the heat exchanger temperature sensed through the heat exchanger temperature sensor 70 with the determined dew point temperature (1050), and when the temperature of the heat exchanger 30 is lowered by a predetermined value from the dew point temperature. If the frequency of the compressor 120 is decreased (1060), and the temperature of the heat exchanger 30 exceeds the dew point temperature, the frequency of the compressor 120 is increased (1070) to keep the temperature of the heat exchanger 30 below the dew point temperature. Can be made (1080). That is, when the temperature of the heat exchanger 30 is excessively low by a predetermined value compared to the dew point temperature, the control unit 100 may reduce the frequency of the compressor 120.

As described above, the conventional air conditioner 1 controls the frequency of the compressor 120 so that the temperature of the heat exchanger 30 is lower than the dew point temperature when performing the dehumidification operation. Accordingly, the air conditioner 1 controls the frequency of the compressor 120 so that the temperature of the heat exchanger 30 is maintained at the dew point temperature or below the dew point temperature. Dehumidification operation can be performed.

In addition, the control unit 100 stops the rotation of the first blowing fan 22 included in the first blowing device 21 when performing the dehumidification operation, or a predetermined minimum rotation speed based on data stored in the storage unit 90. Can be controlled to rotate. That is, as described above, when the air volume of the blowing fan increases during the dehumidification operation, the temperature of the heat exchanger 30 increases, and dehumidification is not properly performed.

During the dehumidification operation of the air conditioner 1, the control unit 100 discharges air of a predetermined air volume through the first guide outlet 13 and the second guide outlet 14. Can be controlled (1090).

As described above in FIG. 4, the controller 100 may control the air conditioner 1 to discharge air that has not been heat-exchanged only through the first guide outlet 13 and the second guide outlet 14.

That is, when the dehumidification operation of the air conditioner 1 is performed, the first air blower 26 is driven under the control of the controller 100, so that the outside air of the housing 10 is transferred to the housing 10 through the second inlet 15. ) Can flow into the interior.

The air introduced into the interior of the housing 10 passes through the second blower 26 and then moves to the second flow path S2 and the third flow path S3 respectively formed on both sides of the first flow path S1. I can. After the air moves upward in the second flow path S2 and the third flow path S3, the air may be discharged to the outside of the housing 10 through the first guide outlet 13 and the second guide outlet 14. . At this time, air may be guided to the front of the air conditioner 1 along the guide curved portions 13a and 14a.

At this time, since the first blower 21 is not driven, air is not discharged through the main outlet 17. That is, when performing the dehumidification operation, the air conditioner 1 blows air that has not been heat-exchanged through the first guide outlet 13 and the second guide outlet 14, so that it performs a function of circulating indoor air or Can provide wind to users.

In addition, the control unit 100 may adjust the number of rotations of the second blowing fan 27 so that air of a predetermined air volume is discharged through the first guide outlet 13 and the second guide outlet 14 when performing the dehumidification operation. . That is, the control unit 100 controls the rotational speed and rotational speed of the second blowing fan 27 based on a preset rotational speed or data previously stored in the storage unit 90 so that a user's sensed airflow may be changed. Can be controlled.

Referring to FIG. 10, according to the control method of the air conditioner 1 according to the above-described embodiment, the air conditioner 1 may perform power saving dehumidification cooling.

That is, when a dehumidification command is input from a user or a condition in which the dehumidification operation of the air conditioner 1 is to be performed is met according to the determination of the control unit 100, the air conditioner 1 performs the dehumidification operation.

When performing the dehumidification operation of the air conditioner 1, the control unit 100 determines the dew point temperature based on the indoor temperature and the indoor humidity, and the compressor 120 controls the temperature of the heat exchanger 30 to be maintained below the dew point temperature. By controlling the frequency, it is possible to lower the relative humidity in the room using minimal energy.

Meanwhile, in order for the air conditioner 1 to perform dehumidification using only a minimum amount of energy, the control unit 100 stops the rotation of the first blowing fan 22 or the number of rotations of the first blowing fan 22 And it is possible to control the rotational speed.

The control unit 100 controls the second air blower 26 so that the air introduced into the second inlet 15 is not heat-exchanged through the distribution device 110 and the first guide outlet 13 and the second guide outlet ( By being discharged to 14), air discharged through the main discharge port 17 and wind may be provided to the user through a separate flow path.

That is, energy saving is realized by performing dehumidification using only a minimum amount of energy during the dehumidification operation of the air conditioner (1), and at the same time, the second air blower (26) through a separate flow path separate from the heat exchanger (30). There is an effect that allows you to stay comfortably with little energy by releasing air to increase comfort.

Meanwhile, the disclosed embodiments may be implemented in the form of a recording medium storing instructions executable by a computer. The instruction may be stored in the form of a program code, and when executed by a processor, a program module may be generated to perform the operation of the disclosed embodiments. The recording medium may be implemented as a computer-readable recording medium.

Computer-readable recording media include all types of recording media in which instructions that can be read by a computer are stored. For example, there may be read only memory (ROM), random access memory (RAM), magnetic tape, magnetic disk, flash memory, optical data storage device, and the like.

As described above, the disclosed embodiments have been described with reference to the accompanying drawings. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be practiced in a form different from the disclosed embodiments without changing the technical spirit or essential features of the present invention. The disclosed embodiments are illustrative and should not be construed as limiting.

1: air conditioner
12: first inlet
13: first guide outlet
14: second guide outlet
15: second inlet
17: main outlet
21: first blower
26: second blower
50: room temperature sensor
60: indoor humidity sensor
70: heat exchanger temperature sensor
80: input
90: storage
100: control unit
110: dispensing device
120: compressor
S1; 1st euro
S2; 2nd euro
S3; 3rd euro

Claims (16)

A housing having a first inlet and a second inlet;
A main outlet formed in the housing to discharge air flowing into the first inlet;
A guide outlet formed to discharge air flowing into the second inlet to the main outlet;
A first passage for flowing air introduced through the first inlet to the main outlet;
A second passage and a third passage provided separately from the first passage and configured to flow air introduced through the second inlet to the guide outlet;
A first blowing device for blowing air so that the air introduced through the first inlet is discharged to the main outlet;
A second blowing device for guiding the air introduced through the second inlet to be discharged through the guide outlet;
A room temperature sensor that detects a room temperature;
An indoor humidity sensor that detects indoor humidity;
A heat exchanger temperature sensor for sensing the temperature of the heat exchanger; And
The dew point temperature is determined based on the sensed indoor temperature and the sensed indoor humidity, and the frequency of the compressor is controlled so that the temperature of the heat exchanger is equal to or less than the determined dew point temperature, and the air introduced through the second inlet is And a control unit for controlling the second blowing device to be discharged with a predetermined air volume through the guide outlet through the second flow path and the third flow path provided separately from the first flow path. The method of claim 1,
An input unit for receiving a power saving command; further includes,
The control unit,
When a power saving command is input from the input unit, the frequency of the compressor is controlled so that the temperature of the heat exchanger is equal to or less than the determined dew point temperature, and air for controlling the blower to discharge air of a predetermined air volume through the guide outlet. Harmony. The method of claim 1,
The control unit,
When the temperature of the heat exchanger is lowered by a predetermined value from the dew point temperature, the compressor frequency is reduced, and when the temperature of the heat exchanger exceeds the dew point temperature, the compressor frequency is increased to reduce the temperature of the heat exchanger to the dew point temperature. Air conditioner maintained with. The method of claim 2,
The first blowing device includes a first blowing fan for blowing air introduced through the first inlet,
The control unit,
When a power saving command is input from the input unit, an air conditioner that stops rotation of the first blowing fan or controls the first blowing fan to rotate at a predetermined minimum rotational speed. The method of claim 2,
The second blowing device includes a second blowing fan for blowing air introduced through the second inlet,
The control unit,
When a power saving command is input from the input unit, the air conditioner adjusts the number of rotations of the second blowing fan so that air of a predetermined amount of air is discharged through the guide outlet. The method of claim 1,
The guide outlet,
The first guide outlet formed to be discharged so that a part of the air introduced into the second inlet is mixed with the air discharged from the main outlet, and the other part of the air introduced into the second inlet is discharged from the main outlet. It includes a second guide outlet formed to be discharged to be mixed with,
The first guide outlet is disposed on one side of the main outlet, and the second guide outlet is disposed on the other side opposite to one side of the main outlet. The method of claim 6,
Including; a distribution device for adjusting the flow rate of the air discharged through the first guide outlet and the second guide outlet,
The distribution device,
An air conditioner disposed in a portion of the housing where air flowing into the second inlet is branched toward the first guide outlet and the second guide outlet. The method of claim 6,
The heat exchanger is disposed between the first inlet and the main outlet,
The main outlet is disposed to discharge air heat-exchanged with the heat exchanger,
The first guide outlet and the second guide outlet are arranged to discharge air that has not passed through the heat exchanger. The method of claim 1,
The second blowing device is an air conditioner that is driven independently from the first blowing device. A housing having a first inlet and a second inlet, a main outlet formed in the housing to discharge air flowing into the first inlet, a first guide formed to discharge air flowing into the second inlet to the main outlet An outlet and a second guide outlet, a first passage for flowing the air introduced through the first inlet to the main outlet, provided separately from the first passage, and the air introduced through the second inlet may be transferred to the first guide outlet and A second flow path and a third flow path flowing to the second guide outlet, a first blowing device for blowing air so that the air introduced through the first inlet is discharged to the main outlet, and the air introduced through the second inlet are the first In the control method of an air conditioner comprising a guide outlet and a second blowing device for guiding discharge to the second guide outlet,
Sensing the room temperature;
Detecting indoor humidity;
Sensing the temperature of the heat exchanger;
Determining a dew point temperature based on the sensed indoor temperature and the sensed indoor humidity;
Controlling the frequency of the compressor so that the temperature of the heat exchanger is equal to or less than the determined dew point temperature;
The second blowing air so that the air introduced into the second inlet is discharged at a predetermined air volume through the first guide outlet and the second guide outlet through the second and third channels provided separately from the first passage. A control method of an air conditioner that controls the device. The method of claim 10,
Receiving a power-saving command input; Including,
When the power saving command is input, the frequency of the compressor is controlled so that the temperature of the heat exchanger is below the determined dew point temperature, and the air of a predetermined air volume is discharged through the first guide outlet and the second guide outlet. A control method of an air conditioner that controls a blower. The method of claim 10,
Controlling the frequency of the compressor,
When the temperature of the heat exchanger is lowered by a predetermined value from the dew point temperature, the compressor frequency is reduced, and when the temperature of the heat exchanger exceeds the dew point temperature, the compressor frequency is increased to reduce the temperature of the heat exchanger to the dew point temperature. Maintaining the air conditioner control method comprising a. The method of claim 11,
When the power saving command is input, stopping the rotation of the first blowing fan included in the first blowing device or controlling the first blowing fan to rotate at a predetermined minimum rotational speed; Control method. The method of claim 11,
When the power saving command is input, adjusting the rotation speed of the second blowing fan included in the second blowing device so that air of a predetermined air volume is discharged through the first guide outlet and the second guide outlet. Control method of an air conditioner comprising. The method of claim 10,
Controlling the air conditioner control method further comprising; adjusting the flow rate of the air discharged through the first guide outlet and the second guide outlet. The method of claim 10,
And driving the second blowing device independently of the first blowing device.

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