KR20070060877A - Air conditioner - Google Patents

Abstract

An air conditioner is provided to prevent a blowing force from being deteriorated and to reduce energy by having a passage varying unit to close a passage in a blowing mode to discharge air through a discharge hole. An air conditioner includes a body(10), a heat exchanger(20), a plurality of blower fans(30,31), and passage varying units(50,60). The body has a plurality of discharge holes(13,14), and a plurality of suction holes(11,12). The heat exchanger is placed in the body. The plurality of blower fans are placed at one side of the heat exchanger. The passage varying units are placed in the body, and changes a passage of air introduced into each of the plurality of blower fans. The passage varying unit are placed at one side of at least one of the plurality of blower fans.

Description

Air Conditioner {AIR CONDITIONER}

1 is a cross-sectional view of an air conditioner according to an embodiment of the present invention.

2 is a cross-sectional view showing an operating state in the air conditioning mode of the air conditioner according to an embodiment of the present invention.

3 is a cross-sectional view showing an operating state in a blowing mode of the air conditioner according to an embodiment of the present invention.

Figure 4 is a cross-sectional view showing the operation state in the remote air-conditioning, near-air blowing mode of the air conditioner according to an embodiment of the present invention.

Figure 5 is a cross-sectional view showing the operation state in the near-air heating, long-distance blowing mode of the air conditioner according to an embodiment of the present invention.

6 is a cross-sectional view of an air conditioner according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: main body, 11, 12: suction port,

13,14: discharge port, 20: heat exchanger,

30,31: blower fan, 32: controller,

33,35: suction flow path, 34,36: heat exchange flow path,

37,39: discharge guide, 38,40: stabilizer,

50,60: flow path variable unit, 51,61: shield plate,

52,62: drive motor.

The present invention relates to an air conditioner, and more particularly, to an air conditioner having a plurality of blowing fans and a plurality of discharge ports.

An example of an air conditioner having a plurality of blowing fans and a plurality of discharge ports is disclosed in Japanese Laid-Open Patent Publication No. 2003-156232.

The air conditioner includes a suction port provided at the front and top of the main body, and first and second discharge ports provided at the lower part of the main body. The first air passage and the second air passage are provided inside the main body, and each of the air passages is provided with a first heat exchanger and a second heat exchanger, respectively. Moreover, each air flow path is provided with a 1st blowing fan and a 2nd blowing fan which consist of a crossflow fan, respectively.

The air conditioner has a limitation in blowing the discharge air to a long distance because the intake port is located on the front and upper surfaces of the main body and both the first and second discharge ports are located on the lower surface of the main body. In other words, it is difficult to circulate the air-conditioning and airflow evenly throughout the indoor space, so a temperature deviation may occur between the upper and lower indoor spaces at the beginning of operation. In addition, since airflow concentrates in the lower part of the room, the user may feel uncomfortable due to the air when the user is close to the air conditioner, and the time to feel the comfort when the user is far away may be delayed.

In addition, another example of an air conditioner having a plurality of blowing fans and a plurality of discharge ports is disclosed in Japanese Patent Laid-Open No. 62-49135.

The air conditioner includes a suction port provided in front of the main body, and first and second discharge ports provided in upper and lower portions of the suction port. A plurality of ventilation paths are provided inside the main body, and each heat exchanger is provided with a heat exchanger, respectively. In addition, a cross flow fan is installed in each ventilation path. The air conditioner discharges heat exchanged air through the lower heat exchanger toward the lower discharge port according to the operation of the lower blower fan, and discharges heat exchanged air through the upper heat exchanger toward the upper discharge port according to the operation of the upper blower fan.

However, the conventional air conditioner has a suction port and a discharge port adjacent to each other, which causes interference during suction and discharge of air, and causes a short circuit of discharged air in which harmonized air discharged from the discharge port is re-intaked into an adjacent suction port. This causes a problem that the heat exchange efficiency is lowered. In addition, the hot air discharged from the lower discharge port during the heating mode rises upward due to the buoyancy, which makes it difficult to improve the heating efficiency of the indoor lower space.

In addition, when the room temperature reaches the set temperature during the operation of a general air conditioner, the cooling / heating mode switches to the blowing mode. In the blowing mode, the air introduced through the inlet is discharged through the heat exchanger. It is a problem that much energy is consumed in blowing the same amount of air as compared with the case where the pressure drop occurs and is blown without passing through the heat exchanger. In addition, the cooling and heating mode and the blowing mode is a selective operation, the problem is that in the heating and cooling mode to provide an additional blower for cooling and heating a large area more efficiently.

The present invention is to solve such a problem, it is an object of the present invention to provide an air conditioner having a structure that can prevent the pressure loss of the air passing through the main body when performing the blowing mode.

Another object of the present invention is to provide an air conditioner having a structure capable of simultaneously blowing and cooling or simultaneously blowing and heating to improve comfort and efficiency.

Still another object of the present invention is to provide an air conditioner having a structure which can prevent the heat exchanged heat exchanger from rising during the heating mode.

Still another object of the present invention is to provide an air conditioner having a structure capable of implementing a control method capable of forming various airflows.

An air conditioner according to the present invention for achieving the above object is a main body having a plurality of discharge ports and a plurality of intake ports, a heat exchanger provided in the main body, a plurality of blowing fans provided on one side of the heat exchanger, and the main body It is characterized in that it comprises a flow path variable unit provided in the variable flow path that can vary the flow path of the air flowing into each of the plurality of blowing fans.

In addition, the flow path variable unit is characterized in that provided on one side of at least one of the plurality of blowing fans.

In addition, the flow path variable unit is characterized in that it comprises a shielding plate that is movable to provide a driving force for shielding a portion of the flow path of the air flowing into the blowing fan, and the shielding plate.

The plurality of discharge ports may include a first discharge port formed at an upper portion of the front surface of the main body and a second discharge hole formed at a lower surface of the main body, and the suction port may be formed at the rear of the main body.

The plurality of blowing fans may include a first blowing fan exerting a blowing force to the first discharge port and a second blowing fan exerting a blowing force to the second discharge port.

In addition, a first discharge guide and a first stabilizer are provided between the first blowing fan and the first discharge port to guide discharge air, and a second discharge guide and a second discharge guide between the second blowing fan and the second discharge port. A second stabilizer is provided.

The shielding plate may be movable between the first discharge guide and the first stabilizer and between the second discharge guide and the second stabilizer, respectively.

The first and second discharge guides and the first and second stabilizers may be inclined downward toward the first and second discharge ports.

In addition, the downward inclination angle of the first discharge guide and the first stabilizer is smaller than the downward inclination angle of the second discharge guide and the second stabilizer.

The air conditioner according to the present invention includes a main body having a plurality of discharge ports and a plurality of suction ports, a heat exchanger provided in the main body, a plurality of blow fans provided in front of the heat exchanger, and air sucked from the suction port. A plurality of suction flow paths introduced into each of the plurality of blowing fans, and at least one of the plurality of suction flow paths, the one or more flow path variable units being provided to be movable and shielding one side of the suction flow paths. Characterized in that.

The suction flow path may include a ventilation flow path through which the air sucked from the suction port directly flows into the blower fan, and a heat exchange flow path through which the air sucked from the suction port passes through the heat exchanger and flows into the blower fan. The variable unit may include a shielding plate movably provided to shield any one of the ventilation channel and the heat exchange channel, and a driving motor for driving the shielding plate.

In addition, the shielding plate is characterized in that selectively shielding any one of the ventilation passage and the heat exchange passage.

In addition, the shielding plate is characterized in that the cooling and heating mode to perform the heating and cooling mode.

In addition, the shielding plate is characterized in that to perform the blowing mode by shielding the heat exchange passage.

In addition, the shielding plate is characterized in that to perform a mixed mode by shielding a part of the ventilation passage of the plurality of suction passages and the heat exchange passage of the remaining portion of the plurality of suction passages.

In addition, it is characterized in that it further comprises a control device for varying the rotational speed of the plurality of blowing fans and to operate each blowing fan independently.

In addition, the blowing fan and the shielding plate is characterized in that they operate independently of each other.

In addition, the air conditioner according to the present invention comprises a main body having a rear inlet port, a first discharge port of the upper front and a second discharge port of the lower front, a heat exchanger provided inside the main body, and the air introduced into the suction port At least one of the first blowing fan and the second blowing fan provided inside the main body, and a first blowing fan for blowing air to the first discharge port, a second blowing fan for blowing air introduced into the suction port to the second discharge port, and the inside of the main body. Characterized in that it comprises a flow path variable unit capable of varying the flow path of air introduced into one.

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

1 is a cross-sectional view of an air conditioner according to an embodiment of the present invention.

As shown in FIG. 1, the air conditioner according to the present invention has an appearance and has a main body 10 having inlets 11 and 12 and outlets 13 and 14 formed therein, and a heat exchanger 20 provided in the main body 10. ), Blowing fans (30,31) provided in front of the heat exchanger 20, and between the heat exchanger (20) and blowing fans (30,31) of the air flowing into the blowing fan (30,31) It includes a flow path variable unit (50, 60) capable of varying the flow path.

The main body 10 includes first and second suction openings 11 and 12 provided at an upper side and a lower side of a rear surface 10a, respectively, and first and second discharge ports 13 and 14 provided at an upper side and a lower side of a front side 10b, respectively. do.

The rear surface 10a of the main body 10 is preferably the first inlet 11 and the second inlet 12 is spaced apart from the wall when the main body 10 is fixed to the wall surface of the building enables a smooth intake of indoor air. The upper and lower sides of the first and second suction ports 11 and 12 are formed to be inclined so as to be inclined.

On the front surface 10a of the main body 10, the first discharge port 13 and the second discharge port 14 are formed long in the transverse direction on the upper side and the lower side, respectively. In addition, the upper and lower sides of the main body front surface 10a are preferably provided to be inclined inwardly, and the air sucked in the first and second suction openings 11 and 12 is discharged to the remote indoor space through the first discharge port 13. It is discharged to the indoor space at a short distance through the second discharge port (14).

The heat exchanger 20 is provided inside the main body 10, in which the air sucked into the first and second suction openings 11 and 12 is blown through the heat exchanger 20 to the blower fans 30 and 31. Spaced apart from the inside of the rear surface (10a) of the main body 10 to be introduced into the rear of the main body 10. At this time, the heat exchanger 20 is provided with a central portion 21 protruding toward the body rear surface 10a side in order to increase the heat exchange area.

The blower fans 30 and 31 may include a first blower fan 30 provided above the front of the heat exchanger 20 and a second blower fan 31 provided below the front and a driving motor for driving each of them. And a control device 32 for controlling the operation of the blower fan by controlling the driving motor.

The first blowing fan 30 and the second blowing fan 31 are preferably made of cross flow fans. In addition, a control device 32 is provided for controlling the driving of the blower fans 30 and 31, and the control device 32 variably controls the rotational speeds of the first and second blower fans 30 and 31. Preferably, the control device may control the rotation speed of the first and second blowing fans 30 and 31 in three stages of strong, medium, and weak, and independently control the first and second blowing fans 30 and 31. Make sure Accordingly, the control device 32 may operate only one of the first and second blowing fans 30 and 31 or both the first and second blowing fans 30 and 31, respectively. The rotation speed of 31) can be adjusted to strong, medium or weak. In addition, the first and second blowing fans 30 and 31 may be provided with the same size to discharge the same amount of air, or may be provided with different sizes to discharge the air of different amounts of air.

In addition, the first discharge guide 37 and the first stabilizer 38 for guiding the air blown by the first blowing fan 30 to the first discharge port 13 in the main body 10, and the second blowing air. A second discharge guide 39 and a second stabilizer 40 for guiding the air blown by the fan 31 to the second discharge port 14 are provided.

The first discharge guide 37 extends from the upper end of the first discharge port 13 toward the upper portion of the first blowing fan 30, and the first stabilizer 38 is provided to surround the lower portion of the first blowing fan 30. do. Therefore, the air blown by the first blowing fan 30 is discharged toward the first discharge port 13 on the upper side.

The second discharge guide 39 extends from the upper end of the second discharge port 14 toward the upper portion of the second blowing fan 31 and is provided to surround the upper portion of the second blowing fan 31, and the second stabilizer 40 is provided. It extends from the lower end of the 2nd discharge port 14 to the lower side of the 2nd blowing fan 31. FIG. Therefore, the air blown by the second blowing fan 31 may be blown toward the second discharge port 14 on the lower side.

In addition, the downward inclination angle α2 of the second discharge guide 39 is larger than the downward inclination angle α1 of the first discharge guide 37, and the downward inclination angle β2 of the second stabilizer 40 is also the first stabilizer. It is formed larger than the downward inclination angle β1 of the riser 39. This is to allow the air blown through the first discharge port 13 to be discharged at a long distance, and to allow the air blown through the second discharge port 14 to be discharged at a short distance.

2 is a cross-sectional view showing an operating state in the air conditioning mode of the air conditioner according to an embodiment of the present invention.

3 is a cross-sectional view showing an operating state in a blowing mode of the air conditioner according to an embodiment of the present invention.

As shown in FIGS. 2 and 3, the main body 10 has a suction path for introducing air sucked into the suction ports 11 and 12 into the blower fans 30 and 31. Ventilation passages 33 and 35 for allowing the air sucked in 12 to directly flow into the blower fans 30 and 31, and the air sucked through the intake ports 11 and 12 pass through the heat exchanger 20 to blow the blower fans ( 30 and 31 are provided including heat exchange passages 34 and 36.

The ventilation passages 33 and 35 are suctioned through the first ventilation passage 33 through which the air sucked through the first suction opening 11 is directly guided to the first blowing fan 30, and the second suction opening 12. It comprises a second air flow passage (35) in which air is guided directly to the second blowing fan (31).

The heat exchange passages 34 and 36 may include a first heat exchange passage 34 guided to the first blower fan 30 after the air sucked through the first inlet 11 is heat-exchanged through the heat exchanger 20, and The air sucked through the second inlet 12 is heat-exchanged through the heat exchanger 20, and then includes a second heat exchange passage 36 that is guided to the second blowing fan 31.

In addition, the air conditioner according to an embodiment of the present invention includes a flow path variable unit (50, 60) capable of varying the suction flow path for guiding the air into the first and second blowing fan (30, 31), The variable units 50 and 60 include a first flow path variable unit 50 for varying the first ventilation flow path 33 and the first heat exchange flow path 34 of the first blowing fan 30, and the second blowing fan 31. It consists of a second flow path variable unit (60) for varying the second ventilation flow path 35 and the second heat exchange flow path (36).

The flow path variable units 50 and 60 drive the shield plates 51 and 61 for shielding any one of the ventilation flow paths 33 and 35 and the heat exchange flow paths 34 and 36, and the shield plates 51 and 61. Driving motors 52 and 62 for driving, guide rails 53 and 63 for guiding the shielding plates 51 and 61 to be driven, and a control device 32 for controlling the driving of the shielding plates 51 and 61; It includes.

The shielding plates 51 and 61 are provided between the blowing fans 30 and 31 and the heat exchanger 20 so as to be rotatably formed so as to be rotatable while surrounding the blowing fans 30 and 31. The shielding plates 51 and 61 are provided on the rear side of the first blowing fan 30 to rotate between one end 37a of the first discharge guide 37 and one end 38a of the first stabilizer 38. A first shielding plate 51 for selectively opening and closing the first ventilation passage 33 and the first heat exchange passage 34, and one end of the second discharge guide 39 provided at the rear side of the second blowing fan 31. A second shielding plate 61 that rotates between 39a and one end 40a of the second stabilizer 40 and selectively opens and closes the second ventilation passage 35 and the second heat exchange passage 36. do.

One side of the shielding plate (51, 61) is coupled to the drive motor (52, 62) is formed a gear portion 54, 64 extending a predetermined length to enable the rotation of the shielding plate (51, 61). The gear parts 54 and 64 are coupled to the driving motors 52 and 62 so that the first and second shield plates 51 and 61 are provided with the first and second discharge guides 37 and 39 and the first and second stabilizers ( The rotational movement is possible between 38 and 40.

In addition, a control device for controlling the rotation of the shielding plate (51, 61) is provided, it may be formed integrally with the control device (32) for the operation of the blower fan (30, 31).

In addition, guide rails 53 and 63 for guiding the shielding plates 51 and 61 which are rotated are formed on both side surfaces of the main body 10.

When the operation command of the heating and cooling mode is input to the air conditioner of the present invention, the control device 32 rotates the first shielding plate 51 upward to open the first heat exchange flow path 34 as shown in FIG. After the air sucked through the first suction port 11 is harmonized through the heat exchanger 20, the air is discharged to the first discharge port 13 by the first blower fan 30, and the second shielding plate 61 is lowered. Rotated to open the second heat exchange flow passage 36 so that the air sucked through the second suction opening 12 is harmonized through the heat exchanger 20, and then the second discharge port 14 is opened by the second blower fan 31. It is discharged to to perform the cooling and heating mode.

In addition, when the operation command of the blowing mode is input, as shown in FIG. 3, the first shielding plate 51 rotates downward to open the first ventilation passage 33, and the second shielding plate 61 rotates upward. The air drawn into the suction ports 11 and 12 by opening the second ventilation passage 35 is directly introduced into the first and second blower fans 30 and 31 and discharged through the first and second discharge ports 13 and 14. Then, the blowing mode is performed. Therefore, in the blowing mode, the suction air is discharged to the discharge ports 13 and 14 through the blower fans 30 and 31 without passing through the heat exchanger 20, thereby reducing the pressure of the suction air while passing through the heat exchanger 20. It is possible to prevent a decrease in the blowing force due to.

At this time, since the first and second blowing fans 30 and 31 are independently operable in the cooling / heating mode or the blowing mode, the speeds of the respective blowing fans 30 and 31 may be changed, and the first and second blowing fans 30 may also be used. It is possible to perform air conditioning, heating, or blowing by operating any one of.

In addition, the air conditioner according to the present invention may perform a mixing mode of mixing the heating and cooling mode and the blowing mode, as shown in Figure 4 by rotating the first shielding plate 51 to the first heat exchange flow path (34) The air flowing into the suction ports 11 and 12 by opening the second ventilating passage 35 by rotating the second shielding plate 61 is the first heat exchange passage 34 and the second venting passage 35. Through the first and the second blowing fan (30, 31) is introduced into the discharge through the first and second discharge port (13, 14). At this time, the air flowing into the first blower fan 30 flows in a harmonized state through the heat exchanger 20, and the air flowing into the second blower fan 31 does not pass through the heat exchanger 20. Since it flows in, it is possible to simultaneously perform heating, cooling, and blowing. In addition, the first shielding plate 51 opens the first ventilation passage 34, and the second shielding plate 61 opens the second heat exchange passage 35 so that the air flowing into the suction ports 11 and 12 Likewise, the air-conditioning and the air blowing are introduced into the first and second blower fans 30 and 31 through the first ventilation passage 33 and the second heat exchange passage 36 and discharged through the first and second discharge ports 13 and 14. Can be performed simultaneously.

Of course, even when the mixing mode is performed, since the first and second blowing fans 30 and 31 may be operated independently, the control device 32 performs the mixing mode by varying the speeds of the respective blowing fans 30 and 31. It can be done.

Next, the operation of the air conditioner according to the exemplary embodiment of the present invention configured as described above will be described with reference to FIGS. 2, 3, and 4.

When the operation command of the cooling or heating mode is input to one embodiment of the present invention, the first heat exchanger channel 34 is opened by rotating the first shield plate 51 upward, and the second shield plate 61 is lowered. By rotating the second heat exchange flow passage 36 so that the air sucked through the inlets 11 and 12 is harmonized through the heat exchanger 20, and then the first and second blower fans 30 and 31 2 is discharged to the discharge port (13, 14) to perform the cooling and heating mode.

At this time, the first and second blower fans 30 and 31 may have the same rotational speed to perform a standard cooling and heating mode, and only one of the first and second blower fans 30 and 31 may be operated or the rotational speed may be changed. The first and second blowing fans 30 and 31 may be operated.

Meanwhile, the downward inclination angles α1 and β1 of the first discharge guide 37 and the first stabilizer 38 are smaller than the downward inclination angles α2 and β2 of the second discharge guide 39 and the second stabilizer 40. Therefore, the air discharged through the first discharge port 13 can be discharged to a farther distance than the air discharged through the second discharge port 14. Therefore, when only the first blowing fan 30 is operated, the harmonized air is discharged through the first discharge port 13 to perform a remote single cooling mode. Similarly, when only the second blowing fan 31 operates, the harmonized air is discharged through the second discharge port 14 to perform the near-field single cooling mode.

In addition, when the rotational speeds of the first and second blowing fans 30 and 31 are different from each other, if the rotational speed of the first blowing fan 30 is faster than the rotational speed of the second blowing fan 31, the amount of air discharged to a long distance is relatively increased. As it becomes larger, it is possible to perform intensive cooling for a long distance. On the contrary, if the rotational speed of the second blowing fan 31 is faster than the rotational speed of the first blowing fan 30, the amount of air discharged to a short distance becomes relatively larger. Short-range intensive heating and cooling is possible.

In addition, when an operation command of the blowing mode is input, the first shielding plate 51 rotates downward to open the first ventilation path 33, and the second shielding plate 61 rotates upward to the second ventilation path 35. ) And the air sucked through the inlet (11, 12) is introduced into the first and second blowing fan (30, 31) side to perform the blowing mode discharged through the first and second discharge port (13, 14) do. Therefore, in the blowing mode, the suction air is discharged to the discharge ports 13 and 14 by the operation of the blowing fans 30 and 31 without passing through the heat exchanger 20. It is possible to prevent a decrease in blowing force due to a drop in suction pressure of the intake air.

At this time, it is possible to perform the standard blowing mode by the same rotation speed of the first and second blowing fans 30 and 31, and to operate only one of the first and second blowing fans 30 and 31 or to change the rotation speed. The first and second blowing fans 30 and 31 may be operated.

When only the first blowing fan 30 is operated, the air sucked into the suction ports 11 and 12 is discharged only to the first discharge port 13 to perform the remote single blowing mode. Likewise, when only the second blowing fan 31 operates, the sucked air is discharged to the second discharge port 14 to perform the short distance single blowing mode.

In addition, when the rotational speeds of the first and second blowing fans 30 and 31 are changed, that is, when the rotational speed of the first blowing fan 30 is faster than the rotational speed of the second blowing fan 31, the air volume is discharged to a long distance. This is relatively larger, so that the long-distance intensive blowing is possible, on the contrary, if the rotational speed of the second blowing fan 31 is faster than the rotational speed of the first blowing fan 30, the amount of air discharged to a short distance is relatively larger. As a result, short-range intensive blowing is possible.

In addition, the operation mode of the air conditioner according to an embodiment of the present invention in which the air-conditioning mode and the blowing mode are mixed is referred to as a mixing mode. ) Rotates to open the first heat exchange flow path 34, and the second shield plate 61 rotates to open the second vent flow path 35 so that the air flowing into the suction ports 11 and 12 passes through the first heat exchange flow path. Through the 34 and the second ventilation passage 35, the first and second air blowers 30 and 31 flow into the first and second air outlets 13 and 14. At this time, the first air blower 30 is discharged. The air flowing into the) side is introduced in a harmonized state through the heat exchanger 20, and the air flowing into the second blowing fan 31 is carried out without passing through the heat exchanger 20, thereby simultaneously performing cooling and heating and blowing. You can do it.

In addition, when the operation command of the long-distance blowing and short-range heating and cooling mode is input in the mixed mode, the first shielding plate 51 rotates to open the first heat exchange flow path 33, and the second shielding plate 61 rotates to the second. The air flowing into the suction ports 11 and 12 by opening the heat exchange passage 36 is introduced into the first and second blower fans 30 and 31 through the first ventilation passage 33 and the second heat exchange passage 36. By discharging, it is possible to simultaneously perform cooling, heating, and blowing.

Even when the mixing mode is performed, the rotational speeds of the first and second blower fans 30 and 31 may be independently controlled to change the rotational speeds of the respective blower fans 30 and 31.

Further, in the mixed mode of the long distance blowing and the near heating mode, since the blower air discharged to the first discharge port 13 has a lower temperature than the heating air discharged to the second discharge port 14, the second discharge port 14 Since the rising of the discharged heating air by the buoyancy is prevented by the low temperature blowing air discharged from the first discharge port 13, there is an effect that can improve the heating effect of the lower part of the room.

6 is a cross-sectional view of an air conditioner according to another embodiment of the present invention.

Hereinafter, in the air conditioner according to another embodiment of the present invention, description of the same configuration as the preferred embodiment of the present invention will be omitted, and the same reference numerals are used for the same configuration as the preferred embodiment of the present invention. .

As shown in FIG. 6, the air conditioner according to another embodiment of the present invention has an exterior and is provided with a main body 10 having inlets 11 and 12 and discharge ports 13 and 14 formed therein, and provided inside the main body 10. A second blowing fan provided between the heat exchanger 20, the first and second blowing fans 30 and 31 provided in front of the heat exchanger 20, and the heat exchanger 20 and the second blowing fan 31. And a second flow path variable unit 60 capable of varying the flow path of the air flowing into the 31.

One end portion 37a of the first discharge guide 37 is provided in contact with an upper end of the heat exchanger 20, and one end portion 38b of the first stabilizer 38 is close to the first blowing fan 30. The suction air introduced into the suction ports 11 and 12 by the operation of the first blowing fan 30 is discharged through the first discharge port 13 through the heat exchanger 20.

At this time, the second shielding plate 61 included in the second flow path variable unit 60 rotates between one end portion 39a of the second discharge guide 39 and one end portion 40a of the second stabilizer 40. The second shielding plate 61 is rotated so that the air introduced into the suction ports 11 and 12 flows directly into the second blower fan 31 and is discharged through the second discharge port 14 so that the first discharge port ( It is possible to improve the cooling and heating efficiency by simultaneously discharging the air-conditioning airflow of 13) and the blower airflow of the second discharge port 14 at the same time.

In addition, at this time, the operation of the first blowing fan 30 may be stopped to operate only the second blowing fan 31 to perform a blowing function, and the operation of the second blowing fan 31 may be stopped to stop the operation of the first blowing fan 31. It is possible to perform the cooling and heating function by (30).

In addition, the second shielding plate 31 is rotated to the lower side to allow the air introduced into the suction ports (11, 12) to be introduced into the second blowing fan 31 through the heat exchanger 20 can perform a cooling and heating function. In this case, the first blowing fan 30 may be independently operated to blow air-conditioning and airflow to a long distance during the operation of the first blowing fan 30.

In addition, according to another embodiment of the present invention, the flow path variable unit 50 is provided only between the heat exchanger 20 and the first blowing fan 31 to vary the flow path of air introduced into the first blowing fan 30. Configuration may also be possible.

As described above in detail, the air conditioner according to the present invention is provided with a variable flow unit inside the main body to close the flow path passing through the heat exchanger when performing the blowing mode so that the intake air is discharged to the discharge port without passing through the heat exchanger As the suction pressure drops through the heat exchanger, the blowing force is prevented from being lowered and energy can be saved.

In addition, by providing a plurality of blowing fan and the flow path variable unit to selectively open and close the flow path of the air flowing into the blowing fan side has the effect of improving the comfort and energy efficiency by simultaneously performing cooling and blowing or heating and blowing. .

In addition, the upper blowing fan to perform the blowing mode and the lower blowing fan to perform the heating mode to prevent the heating air flow of the lower side has the effect of improving the heating effect of the lower room.

In addition, by independently controlling the driving and rotational speed of the plurality of blowing fans and the rotation of the flow path variable unit, the air discharged through the plurality of discharge ports forms various air flows, thereby improving user convenience and comfort.

Claims (18)

A main body having a plurality of discharge ports and a plurality of suction ports, A heat exchanger provided in the main body, A plurality of blowing fans provided at one side of the heat exchanger; And a flow path variable unit provided in the main body to vary a flow path of air introduced into each of the plurality of blowing fans. The air conditioner according to claim 1, wherein the flow path variable unit is provided on at least one side of the plurality of blowing fans. The method of claim 2, wherein the flow path variable unit is characterized in that it comprises a shielding plate that is movable and shielding a portion of the flow path of air flowing into the blowing fan, and a drive motor for providing a driving force to the shielding plate. Air conditioner. The air conditioner according to claim 1 or 3, wherein the plurality of discharge ports comprises a first discharge port formed on the front surface of the main body and a second discharge port formed on the lower surface of the main body, and the suction port is formed at the rear of the main body. group. 5. The air blower as claimed in claim 4, wherein the plurality of blower fans comprise a first blower fan that exerts a blowing force to the first outlet, and a second blower fan that exerts a blower to the second outlet. Air conditioner. 6. The method of claim 5, wherein a first discharge guide and a first stabilizer are provided between the first blowing fan and the first discharge port to guide the discharge air, and between the second blowing fan and the second discharge port. An air conditioner, characterized in that the discharge guide and the second stabilizer is provided. The air conditioner of claim 6, wherein the shielding plate is provided to be movable between the first discharge guide and the first stabilizer, and between the second discharge guide and the second stabilizer, respectively. 8. The air conditioner of claim 7, wherein the first and second discharge guides and the first and second stabilizers are inclined downward toward the first and second discharge ports. The air conditioner according to claim 8, wherein the downward inclination angles of the first discharge guide and the first stabilizer are smaller than the downward inclination angles of the second discharge guide and the second stabilizer. A main body having a plurality of discharge ports and a plurality of suction ports, A heat exchanger provided in the main body, A plurality of blowing fans provided in front of the heat exchanger; A plurality of suction passages through which air sucked from the suction port flows into each of the plurality of blowing fans; And at least one flow passage variable unit provided to be movable in at least one suction passage among the plurality of suction passages and shielding one side of the suction passage. 11. The air inlet according to claim 10, wherein the suction flow path includes a ventilation flow path through which the air sucked from the suction port directly flows into the blower fan, and a heat exchange flow path through which the air sucked from the suction port flows through the heat exchanger to the blower fan. and, The flow path variable unit includes a shield plate movably provided to shield one of the ventilation channel and the heat exchange channel, and an air conditioner for driving the shield plate. The air conditioner of claim 11, wherein the shielding plate selectively shields any one of the ventilation passage and the heat exchange passage. The air conditioner of claim 12, wherein the shielding plate shields the ventilation channel to perform a cooling and heating mode. The air conditioner of claim 13, wherein the shielding plate performs a blowing mode by shielding the heat exchange passage. The air conditioner according to claim 12, wherein the shielding plate performs a mixed mode by shielding a part of the ventilation channel of the plurality of suction channels and the heat exchange channel of the other part of the plurality of suction channels. The air conditioner according to any one of claims 13 to 15, further comprising a control device for varying the rotational speeds of the plurality of blowing fans and independently operating each of the blowing fans. . The air conditioner according to claim 16, wherein the blower fan and the shield plate operate independently of each other. A main body having a suction port in the rear, a first discharge port in the upper front portion, and a second discharge port in the lower front surface; A heat exchanger provided inside the main body, A first blowing fan for blowing air introduced into the suction port to the first discharge port; A second blowing fan for blowing air introduced into the suction port to the second discharge port; And a flow channel variable unit provided inside the main body to vary a flow path of air introduced into at least one of the first blowing fan and the second blowing fan.

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