KR20070023398A - Air conditioner and Control method of the same - Google Patents

Abstract

The air conditioner of the present invention includes a blower fan having a transverse flow fan unit for discharging air to the side air discharge port, and a centrifugal fan unit for discharging air to the bottom air discharge port; A stabilizer for guiding air blown by the cross flow fan to a side air discharge port; When the air blown by the centrifugal fan is configured to include a scroll to guide the air discharge port, it is possible to discharge the air conditioned with low noise and high air volume to the left, right, and the lower side, so that it is possible to distribute the proper airflow during heating operation. There is an advantage that can increase the comfort, air conditioning the room with high air volume and low noise.

Air conditioner, Cross flow fan section, Centrifugal fan section, Left side air outlet, Right side air outlet, Bottom air outlet, Scroll

Description

Air conditioner and control method {Air conditioner and Control method of the same}

1 is an exploded perspective view of an example of an air conditioner according to the prior art;

2 is a front view of the air conditioner according to one embodiment of the present invention when discharging the air-conditioned air to the left, right, and bottom,

3 is a front view of the air conditioner according to one embodiment of the present invention when discharging air-conditioned air to the left and the lower side,

4 is a front view of the air conditioner according to one embodiment of the present invention when discharging the air-conditioning air to the right, the lower side,

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

6 is a longitudinal sectional view of an embodiment of an air conditioner according to the present invention;

7 is an exploded perspective view of an embodiment of an air conditioner according to the present invention;

8 is a partially cut-away perspective view of the blowing fan illustrated in FIG. 7;

9 is a control block diagram of an air conditioner according to the present invention;

10 is a flow chart of an embodiment of a control method of an air conditioner according to the present invention;

11 is a flowchart of another embodiment of a control method of an air conditioner according to the present invention.

<Explanation of symbols on main parts of the drawings>

1: body 2: air intake

4: left air outlet 6: right air outlet

8: lower air outlet 12: chassis

13: rear guide 14: center guide

20: front panel 22: front case

24: suction panel 26: filter

30: heat exchanger 32: left cross flow fan

34: left centrifugal fan portion 40: left blower fan

43: left blowing motor 44: left bearing

46: left stabilizer 48: left scroll

52: right cross flow fan portion 54: right centrifugal fan portion

60: right blowing fan 63: right blowing motor

64: right bearing 66: right stabilizer

68: right guide 70: input unit

72: control unit P1: blowing flow path of left blowing fan

P2: Blowing flow path of the right blowing fan

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner and a control method thereof, and more particularly, to an air conditioner capable of discharging air heat-exchanged to the left, right, and bottom with high air volume and low noise.

In general, an air conditioner uses a refrigeration cycle of refrigerant consisting of a compressor, a four-way valve, an outdoor heat exchanger (condenser or evaporator), an expansion device, and an indoor heat exchanger (evaporator or condenser) to create a more comfortable indoor environment for the user. By cooling or heating, it is largely divided into a separate type and an integrated type.

The separation type and the integrated type are functionally the same, but the separation type has a cooling / heating device, an indoor fan and an indoor fan motor installed in the indoor unit, and a heat radiation / cooling device, a compression device, an outdoor fan and an outdoor fan motor installed in the outdoor unit. The indoor and outdoor units separated from each other are connected by a refrigerant pipe, and the integrated type integrates the function of cooling heat dissipation to drill holes in the walls of the houses or directly install the devices by hanging the windows.

1 is an exploded perspective view of an example of an air conditioner according to the prior art.

As shown in FIG. 1, a conventional air conditioner includes an air inlet 102 formed on a front surface thereof, and air outlets 104 and 106 formed on both left and right sides thereof, respectively, and the air intake 102. It is configured to include a heat exchanger 130 installed in the rear, and left and right cross-flow fan 140, 150 is disposed to be spaced left and right in the interior of the main body 110 and vertically long.

The main body 110 includes a cabinet 112, a front panel 120 disposed at the front of the cabinet 112, and having the air intake port 102 and the air discharge port 104 and 106 formed therein, and the air intake port ( It is configured to include a suction panel 124 disposed to be spaced apart in front of the 102 and to form an air intake passage between the air intake port (102).

The cabinet 112 is provided with a left blower motor 142 for rotating the left side flow fan 140 and a right blower motor 152 for rotating the right side flow fan 150.

The front panel 120 is provided with a filter 126 for filtering foreign substances in the air sucked into the air inlet 102.

Referring to the operation of the conventional air conditioner configured as described above are as follows.

In the air conditioner, during the cooling operation or the heating operation, the left blower motor 142 and the right blower motor 152 are driven to rotate the left side flow fan 140 and the right side flow fan 150 to rotate indoor air. Is sucked into the body 10 through the air inlet 102.

The sucked air is heat-exchanged with the refrigerant while passing through the heat exchanger 130 to be heated or cooled, and thereafter, it is distributed and flows into the left cross flow fan 140 and the right cross flow fan 150 inside the main body 110.

The air-conditioned air flowing to the left cross flow fan 140 is discharged to the front of the left or left of the air conditioner through the left air discharge port 104, the air-conditioned air flows to the right cross flow fan 140 Is discharged to the front of the right or right of the air conditioner through the right air outlet 106, the air discharged to the left and right of the air conditioner to cool or heat the room.

However, the air conditioner according to the prior art uses the two transverse flow fans 140, 150 formed vertically long to suck the indoor air through the front and discharge the air-conditioned air through the left and right sides, so that the downward discharge It is difficult to have a problem that the comfort is lowered in the case of heating operation.

On the other hand, Korean Patent Publication No. 10-2004-0015872 (published February 21, 2004) has a left and right centrifugal fan installed inside the main body for downward discharge, and sucks the indoor air to the front side, and the left and right sides and the bottom surface. The air conditioner improves the comfort by discharging through the air and evenly diffuses the air-conditioned air into the room. However, the air conditioner disclosed in the above-mentioned patent publication has a dead zone of the heat exchanger due to the installation of a centrifugal fan. There is a problem that the vibration and noise is larger than the cross flow fan is installed, and there is a problem with a small amount of air.

The present invention has been made in order to solve the above problems of the prior art, it is possible to discharge the air-conditioned air to the left, right, lower side, it is possible to distribute the proper airflow during heating operation, and to increase the comfort, high air volume and An object of the present invention is to provide an air conditioner capable of air conditioning the room with low noise.

Another object of the present invention is to control the air conditioner which can discharge the air conditioning air in only one of the left and right direction of the room or the amount of air conditioning air discharged to the left and right, thereby increasing the ease of use To provide.

The air conditioner according to the present invention for solving the above problems is the air inlet is formed on the front surface, the side air discharge port is formed on the side, the lower surface and the air discharge port is formed; A blower fan disposed vertically in the main body, the cross-flow fan part discharging air to the side air discharge port, and a centrifugal fan part to discharge air to the bottom air discharge port; A stabilizer for separating the suction flow path and the exhaust flow path of the cross flow fan portion; Surrounding the centrifugal fan portion and characterized in that it comprises a scroll for guiding the air blown by the centrifugal fan portion to the lower surface air discharge port.

In addition, the air conditioner is characterized in that it further comprises a rear guide for guiding the air blown by the cross flow fan portion to the side air discharge port.

In addition, the centrifugal fan is characterized in that formed on the lower end of the cross flow fan.

In addition, the centrifugal fan is characterized in that the bell mouse is formed at the boundary with the crossflow fan.

In addition, the air conditioner is characterized in that it further comprises a heat exchanger disposed behind the air inlet.

The air conditioner may include a blower motor installed on any one of the main body and the scroll to rotate one of the upper and lower rotary shafts of the blower fan, and the other of the upper and lower rotary shafts of the blower fan. It characterized in that it further comprises a bearing installed on the other one of the main body and the scroll to support.

The side air outlet, the blower fan, the stabilizer, the scroll, the blower motor, and the bearing are provided on the left and right sides of the main body, respectively.

The air conditioner may further include a central guide installed in the main body so as to partition a flow path of the left blower fan and a flow path of the right blower fan.

The air conditioner may further include a controller configured to rotate only one of the left blowing fan and the right blowing fan according to the blowing mode, or rotate the left blowing fan and the right blowing fan at different rotational speeds. .

In addition, the air conditioner of the present invention is the air intake port is formed on the front surface, the left side air discharge port is formed on the left side, the right side air discharge port is formed on the right side, the lower surface and the air discharge port is formed; A left blower fan disposed vertically on the inner left side of the main body and having a left side flow fan portion for discharging air to the left side air discharge port and a left centrifugal fan portion for discharging air to the bottom air discharge port at the bottom; ; A left stabilizer for separating an intake flow path and an exhaust flow path of the left cross flow fan portion; A left scroll for guiding the air blown by the left centrifugal fan to the bottom air outlet; A right blower fan disposed vertically on the inner right side of the main body, and having a right side flow fan portion for discharging air to the right side air discharge port and a right centrifugal fan portion for discharging air to the bottom air discharge port at the bottom; A right stabilizer for distinguishing an intake flow path and an exhaust flow path of the right cross flow fan portion; And a right scroll for guiding the air blown by the right centrifugal fan to the lower air discharge port.

In addition, the control method of the air conditioner according to the present invention includes a first step of confirming the blowing mode of the air conditioner; If the blowing mode identified in the first step is a single operation mode for discharging the air conditioned in either of the left and right directions of the room, the left blower fan installed on the left side of the inside of the air conditioner and the inside right side of the air conditioner It characterized in that it comprises a second step of rotating only one of the right blowing fan installed in.

In addition, the control method of the air conditioner according to the present invention includes a first step of confirming the blowing mode of the air conditioner; If the blowing mode identified in the first step is a one-way operation mode for discharging more air in the right and left direction of the room, the left blower fan installed on the left inside of the air conditioner and the air conditioner And a second step of rotating the right blowing fan installed at the inner right side at different rotation speeds, respectively.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a front view of the air conditioner according to an embodiment of the present invention when discharging the air-conditioning air to the left, right, lower side, Figure 3 is a left, bottom air conditioning the air conditioner according to an embodiment of the present invention 4 is a front view when the air conditioner according to the embodiment of the present invention discharges the air-conditioned air to the right and the lower side.

The air conditioner according to the present embodiment discharges the air-conditioning air purified or heat exchanged therein to the left and right and the lower side, as shown in Figure 2, or to the left and the lower side, as shown in Figure 3, As shown in Figure 4, the discharge is to the right and lower sides.

That is, the air conditioner has an air intake port 2 through which the air in the room is sucked in the front of the main body 1 forming its appearance, the left side air discharge port 4 is formed on the left side, the right side on the right side An air discharge port 6 is formed, and a lower surface of the air discharge port 8 is formed.

Figure 5 is a cross-sectional view of one embodiment of an air conditioner according to the present invention, Figure 6 is a longitudinal sectional view of one embodiment of an air conditioner according to the present invention, Figure 7 is an exploded perspective view of an embodiment of an air conditioner according to the present invention.

As shown in FIGS. 5 to 7, the main body 1 is mounted on the chassis 12 and the front surface of the chassis 12, and the heat exchanger 30 to be described later between the chassis 12 and the like. It is configured to include a front panel 20 to form a space for accommodation.

The chassis 12 is mounted on a mounting plate (not shown) mounted on the wall of the room.

The left side air outlet 4, the right side air outlet 6, and the bottom surface air outlet 8 are formed on the peripheral surface side of any one of the chassis 12 and the front panel 20.

Hereinafter, for convenience of description, the chassis 12 will be described in that the left side air outlet 4, the bottom side air outlet 6, and the bottom side air outlet 8 are formed.

The chassis 12 guides the air blown by the left side flow fan unit 32, which will be described later, to the left side air discharge port 4, and the air blown by the right side flow fan unit 52, which will be described later, by the right side air. The rear guide 13 which leads to the discharge port 6 is formed round.

The rear guide 13 has a left portion forming a fan housing portion of the left cross flow fan portion 32 and a right portion forming a fan housing portion of the right cross flow fan portion 52.

On the other hand, the chassis 12 is provided with a central air flow passage P1 of the left side cross flow fan portion 32 and a central guide 14 for partitioning the air flow passage P2 of the right side cross flow fan portion 52.

In addition, the left upper and lower partition walls 15a and 15b are formed on the upper left and lower sides of the chassis 12 to prevent the air blown by the left side flow fan unit 32 from leaking upward and downward. The right upper and lower barrier ribs 16a and 16b are formed on the right upper and lower sides to prevent the air blown by the right cross flow fan unit 52 from leaking upward and downward.

The front panel 20 forms an exterior of the front side of the air conditioner and allows the air of indoor air A to be sucked into the inside of the air conditioner. It may be formed in the shape of a grill on the front of the panel 20, may be formed to be spaced apart from the front left and front right of the front panel 20, respectively, circular or at the front center side of the front panel 20 It is also possible to form a large rectangle.

The front panel 20 has a front case 22 formed with air flow passages P1 and P2 between the chassis 12 and the air inlet 2 at the front center side, and the front case. It will be described as being limited to a configuration including a suction panel 24 which is spaced apart in front of the air intake port 2 of 22 and forms an air intake passage 23 between the front case 22.

The front panel 20 is provided with a filter 26 for purifying the air sucked into the air inlet (2).

A heat exchanger 30 is installed at the rear of the air intake port 2 of the front panel 20 to heat or cool the air sucked into the air intake port 2 with a refrigerant.

On the other hand, the air conditioner is disposed in the upper left and right in the inner left of the main body 10, the left side flow fan portion 32 for discharging air to the left side air discharge port 4 is formed on the upper side and the lower air A left blower fan 40 having a left centrifugal fan portion 34 for discharging air to the discharge port 8; A left stabilizer (46) for separating the intake flow path and the exhaust flow path (P1) of the left cross flow fan portion (32); It further comprises a left scroll 48 for guiding the air blown by the left centrifugal fan portion 34 to the lower surface air outlet 8.

The left cross flow fan portion 32 is formed such that a blade blows air on the right side of the left cross flow fan portion 32 to the left side.

The left centrifugal fan portion 34 is formed at the lower end of the left crossflow fan portion 32.

The left centrifugal fan portion 34 is formed such that a blade blows air above the left centrifugal fan portion 32 in the centrifugal direction.

The left centrifugal fan portion 34 has a height less than 1/10 of the height of the left crossflow fan portion 32.

That is, most of the left blower fan 40 is composed of the left side flow fan part 32, and only a part thereof consists of the left centrifugal fan part 34 for downward discharge.

The left stabilizer 46 is provided on the left side of the front panel 20, and the suction flow path and the exhaust flow path of the left side flow fan part 32 are disposed between the left part of the rear guide 13 of the chassis 12. Form.

A left louver 47a for adjusting the wind direction of the air discharged to the left air outlet 4 is rotatably disposed in the left stabilizer 46, and a left louver motor 47b for rotating the left louver 47a. Is installed.

The left scroll 48 has a left centrifugal fan portion through-hole 49 formed therein so that the left centrifugal fan portion 34 is inserted into the upper surface so as to be rotatable.

 The left scroll 48 is formed such that the front part is bent so as to be converted downward in the flow direction of the air blown by the left centrifugal fan part 34, and the lower end of the bent front part communicates with the lower air outlet 8. do.

In addition, the air conditioner is left blower installed in any one of the chassis 12 and the left scroll 48 to rotate any one of the upper rotary shaft 41 and the lower rotary shaft 42 of the left blower fan (40). It is installed on the other of the chassis 12 and the left scroll 48 to rotatably support the other of the motor 43 and the upper rotary shaft 41 and the lower rotary shaft 42 of the left blowing fan 40. The left bearing 44 is comprised.

On the other hand, the air conditioner is disposed up and down long in the inner right of the main body 10, the right side cross-flow fan portion 52 for discharging air to the right side air discharge port 6 is formed on the upper side of the lower air discharge port A right blower fan 60 having a right centrifugal fan portion 54 for discharging air to (8); A right stabilizer (66) for separating the intake flow path and the exhaust flow path (P2) of the right cross flow fan portion (52); And a right scroll 68 for guiding the air blown by the right centrifugal fan portion 54 to the lower surface air outlet 8.

The right cross flow fan portion 52 is formed so that the blade blows air on the left side of the right cross flow fan portion 32 to the right, as opposed to the left cross flow fan portion 32.

The right centrifugal fan portion 54 is formed at the lower end of the right cross flow fan portion 52.

The right centrifugal fan portion 54 is formed such that a blade blows air above the right centrifugal fan portion 52 in the centrifugal direction.

The right centrifugal fan portion 54 has a height less than 1/10 of the height of the right cross flow fan portion 52.

That is, most of the right blower fan 50 is composed of the right side crossflow fan portion 52, and only a part thereof is formed of the right centrifugal fan portion 54 for downward discharge.

The right stabilizer 66 is installed on the right side of the front panel 20, and the suction flow path and the exhaust flow path of the right cross flow fan part 52 between the right part of the rear guide 13 of the chassis 12. To form.

In the right stabilizer 66, a right louver 67a for adjusting the wind direction of the air discharged to the right air outlet 6 is rotatably disposed, and a right louver motor 67b for rotating the right louver 67a. Is installed.

The right scroll 68 has a right centrifugal fan portion through-hole 69 formed to be rotatably disposed by inserting the right centrifugal fan portion 34 on an upper surface thereof.

 The right scroll 68 is formed so that the front part is bent so as to be converted downward in the flow direction of air blown by the right centrifugal fan part 34, and the lower end of the bent front part communicates with the lower air outlet 8. do.

In addition, the air conditioner is a right blower installed in any one of the chassis 12 and the right scroll 68 to rotate any one of the upper rotary shaft 61 and the lower rotary shaft 62 of the right blower fan (60). Installed on the other of the chassis 12 and the right scroll 68 to rotatably support the other of the motor 63 and the upper rotary shaft 61 and the lower rotary shaft 62 of the right blowing fan 60. The right bearing 64 is configured.

Reference numeral 4a is a left vane for adjusting the wind direction of the air discharged to the left side air outlet 4 and sealing the left side air outlet 4, and the reference 4b rotates the left vane 4a. Left vane motor is installed to make.

Reference numeral 6a denotes a right vane for controlling the wind direction of the air discharged to the right side air outlet 6 and sealing the right side air outlet 6, and reference 6b to rotate the right vane 6a. Right vane motor installed.

Reference numeral 8a is a lower vane for controlling the wind direction of the air discharged to the lower air outlet 8 and seals the lower air outlet 8, and the reference 8b is for rotating the lower vane 8a. Lower vane motor installed.

Reference numeral 12a denotes a left blower motor accommodating part in which the left blower motor 43 is installed, and reference numeral 12b denotes a right blower motor accommodating part in which the right blower motor 63 is installed.

FIG. 8 is a partially cut-away perspective view of the blowing fan illustrated in FIG. 7.

Each of the left centrifugal fan 34 and the right centrifugal fan 54 has a portion of the air inside the crossflow fan 32 and 52 at the boundary between the crossflow fan 32 and 52. A bell mouse 36 with an air suction guide 35 is formed so that it can be sucked downward into the interior of 54.

9 is a control block diagram of an air conditioner according to the present invention.

As shown in FIG. 9, the air conditioner includes an input unit 70 for inputting left, right alone operation, left and right deflection operation, etc. of the air conditioner, and an operation mode input to the input unit 70. The control unit 72 further controls the left blower motor 43 and the right blower motor 63.

Looking at the operation of the present invention configured as described above are as follows.

10 is a flowchart of an embodiment of a control method of an air conditioner according to the present invention.

First, when either one of a cooling operation and a heating operation is input through the input unit 70 and a single left operation is input, the control unit 72 rotates the left blowing motor 43, but the right blowing motor (63) is stopped. (S1) (S2)

When the left blower motor 43 is rotated, the left blower fan 40 is rotated in the counterclockwise direction shown in FIG. 5, and the air A in the room is rotated by the left blower fan 40. The negative pressure generated by the negative pressure is collected toward the front panel 20 and sucked into the front panel 10 and the chassis 12 through the air inlet 2.

The sucked indoor air (A) is cooled or heated by being deprived of heat by the refrigerant passing through the heat exchanger (30), and is sucked toward the left cross flow fan (32).

The heat-exchanged air A ′ sucked into the left cross flow fan portion 32 is introduced into the left cross flow fan portion 32 while being guided by the left portion of the left stabilizer 46 and the rear guide 13.

Some of the air A ′ introduced into the left crossflow fan portion 32 flows to the left side by the left crossflow fan portion 32 and is discharged to the left side of the air conditioner through the left air discharge port 4.

On the other hand, the remainder of the air (A ') introduced into the left side flow fan 32 flows downward by the left centrifugal fan portion 34 is blown in the centrifugal direction inside the left centrifugal fan portion 34, the air blowing After the air is guided to the left scroll 48 and the flow direction is changed to the lower side again, the air is discharged to the lower side of the air conditioner through the lower air outlet 8.

That is, as shown in FIG. 3, the air air-conditioned in the air conditioner is discharged to the left and the lower side of the air conditioner, while cooling or heating the left side of the room mainly.

Cool or heat the lower part of the room.

On the other hand, if one of the cooling operation and the heating operation is input through the input unit 70, and the right alone operation is input, the control unit 72 rotates the right blowing motor 63, the left blowing The motor 43 is stopped (S3) (S4).

When the right blower motor 63 is rotated, the right blower fan 60 is rotated in a clockwise direction as shown in FIG. 5, where air A in the room is rotated by the right blower fan 60. The negative pressure is gathered to the front of the front panel 20, and is sucked into the front panel 10 and the chassis 12 through the air inlet 2.

The sucked room air (A) is cooled or heated by the heat passing through the refrigerant passing through the heat exchanger (30), and is drawn toward the right cross-flow fan (52).

The heat-exchanged air A ′ sucked into the right cross flow fan portion 52 is introduced into the right cross flow fan portion 52 while being guided by the right portion of the right stabilizer 66 and the rear guide 13.

Some of the air A ′ introduced into the right cross flow fan portion 52 flows to the right by the right cross flow fan portion 52 and is discharged to the right side of the air conditioner through the right air discharge port 6.

On the other hand, the rest of the air (A ') introduced into the right cross flow fan 52 flows downward by the right centrifugal fan portion 54 is blown in the centrifugal direction inside the right centrifugal fan portion 54, the air blowing The air is guided to the right scroll 68 and the flow direction is changed back to the lower side, and then discharged to the lower side of the air conditioner through the lower air outlet (8).

 That is, the air conditioned in the air conditioner is discharged to the right side and the lower side of the air conditioner as shown in FIG. 4, while cooling or heating the lower part of the room while cooling or heating the right side of the room mainly.

On the other hand, when one of the cooling operation and the heating operation is input through the input unit 70, and the left and right simultaneous operation is input, the control unit 72 rotates the left blower motor 43 and In addition, the right blowing motor 63 is rotated. (S5) (S6)

When the left blower motor 43 is rotated, the left blower fan 40 is rotated counterclockwise as shown in FIG. 5, and when the right blower motor 63 is rotated, the right blower fan 60 is In the clockwise direction shown in FIG. 5, in this case, the air A in the room is front of the front panel 20 by the negative pressure formed by the rotation of the left blower fan 40 and the right blower fan 60. Gathered into the front panel 10 and the chassis 12 through the air intake 2.

The sucked indoor air (A) is cooled or heated by being deprived of heat by the refrigerant passing through the heat exchanger (30), and flows to the left and right of the central guide (14).

Air A ′ flowed to the left of the center guide 14 is discharged to the left and bottom of the air conditioner by the left blower fan 40, the left stabilizer 46, and the left scroll 48, Air A ′ which flows to the right of the center guide 14 is discharged to the right and the bottom of the air conditioner by the right blower fan 60, the right stabilizer 66, and the right scroll 68.

That is, the air conditioned in the air conditioner is discharged to the left and right and the lower side of the air conditioner as shown in FIG. 2 to cool or heat the left and right and the lower side of the room quickly and evenly.

11 is a flowchart of another embodiment of a control method of an air conditioner according to the present invention.

First, when either one of a cooling operation and a heating operation is input through the input unit 70, and a left biasing operation is input, the controller 72 drives the left blower motor 43 to the first ALPM. The right blower motor 63 is driven by a second RMP smaller than the first RPM. (S11) (S12)

When driving the first ALPM of the left blower motor 43, the left blower fan 40 is rotated at a first rotational speed in the counterclockwise direction shown in FIG. 5, and the second ALPM of the right blower motor 63 is rotated. In operation, the right blowing fan 60 is rotated at a second rotational speed slower than the first rotational speed in the clockwise direction shown in FIG. 5.

As described above, when the left blower fan 40 is rapidly rotated at the first rotational speed and the right blower fan 60 is slowly rotated at the second rotational speed, the air-conditioned air A 'is the left side of the air conditioner. Dispersed and discharged to the right and the lower side, more discharged to the left side than the right side based on the air conditioner, the room is cooled / heated more intensively on the left side while cooling the right side.

On the other hand, if any one of a cooling operation and a heating operation is input through the input unit 70 and the right side bias operation is input, the control unit 72 drives the right blowing motor 63 to the first ALPM. However, the left blower motor 43 is driven by a second RMP smaller than the first RPM. (S13) (S14)

When driving the first ALPM of the right blower motor 63, the right blower fan 40 is rotated at a first rotational speed in a clockwise direction as shown in FIG. 5, and the second ALMP drive of the left blower motor 43 is performed. At the time, the left blowing fan 60 is rotated at a second rotation speed slower than the first rotation speed in the counterclockwise direction shown in FIG. 5.

As described above, when the right blower fan 60 is rapidly rotated at the first rotational speed and the left blower fan 40 is rotated slowly at the second rotational speed, the air-conditioned air A 'is the left side of the air conditioner. Dispersion is discharged to the right and the lower side, but more discharged to the right side than the left side based on the air conditioner, the room is cooled / heated more intensively while the left side is cooled / heated.

On the other hand, if one of the cooling operation and the heating operation is input through the input unit 70, and the left and right equalization operation is input, the control unit 72 is the left blowing motor 43 and the right blowing motor. (63) is driven by the same ALPM. (S15) (S16)

When driving the same ALPM of the left blower motor 43 and the right blower motor 63, the left blower fan 40 and the right blower fan 60 rotate in opposite directions to each other at the same rotational speed.

As described above, when the left blower fan 40 and the right blower fan 60 are rotated at the same rotational speed, the air-conditioned air A 'is dispersed and discharged to the left, right, and bottom of the air conditioner, but the room is left The right and bottom are evenly cooled and heated.

The air conditioner of the present invention configured as described above comprises: a blowing fan having a cross flow fan portion for discharging air to the side air discharge port, and a centrifugal fan portion for discharging air to the bottom air discharge port; A stabilizer for guiding air blown by the cross flow fan to a side air discharge port; When the air blown by the centrifugal fan is configured to include a scroll to guide the air discharge port, it is possible to discharge the air conditioned with low noise and high air volume to the left, right, and the lower side, so that it is possible to distribute the proper airflow during heating operation. There is an advantage that can increase the comfort, air conditioning the room with high air volume and low noise.

The air conditioner of the present invention has the advantage that the centrifugal fan portion is formed at the lower end of the cross flow fan portion, so that the length of the scroll can be shortened and the structure is simple and low cost.

In the air conditioner of the present invention, a bell mouse is formed at the boundary between the cross flow fan portion and the centrifugal fan portion, so that the air inside the cross flow fan portion can be rapidly introduced / vented into the centrifugal fan portion, and the air-conditioned air can be quickly discharged downward. There is this.

The control method of the air conditioner of the present invention can discharge the air conditioning air in only one of the left and right directions of the room or change the amount of air conditioning air discharged to the left and right, which can increase the convenience of use. have.

Claims (12)

An air intake port is formed at the front surface, a side air discharge port is formed at the side surface, and a lower surface air discharge port is formed at the bottom surface thereof; A blower fan disposed vertically in the main body, the cross-flow fan part discharging air to the side air discharge port, and a centrifugal fan part to discharge air to the bottom air discharge port; A stabilizer for separating the suction flow path and the exhaust flow path of the cross flow fan portion; And a scroll which surrounds the centrifugal fan unit and guides the air blown by the centrifugal fan unit to the bottom air outlet. The method of claim 1, The air conditioner further comprises a rear guide for guiding the air blown by the cross flow fan to the side air outlet. The method of claim 1, And the centrifugal fan portion is formed at a lower end of the cross flow fan portion. The method of claim 1, The centrifugal fan portion air conditioner, characterized in that the bell mouse is formed at the boundary with the crossflow fan portion. The method of claim 1, The air conditioner further comprises a heat exchanger disposed behind the air inlet. The method according to any one of claims 1 to 5, The air conditioner rotatably supports the blower motor installed on any one of the main body and the scroll and the other one of the upper and lower rotary shafts of the blower fan to rotate one of the upper and lower rotary shafts of the blower fan. And a bearing mounted on the other one of the main body and the scroll. The method of claim 6, And the side air outlet, the blower fan, the stabilizer, the scroll, the blower motor, and the bearing are provided on the left and right sides of the main body, respectively. The method of claim 6, The air conditioner further comprises a central guide installed in the main body so as to partition the flow path of the left blower fan and the right blower fan. The method of claim 6, The air conditioner further comprises a control unit configured to rotate only one of the left and right blower fans or the left blower and the right blower fan at different rotational speeds according to the blowing mode. group. An air inlet is formed at the front surface, a left side air outlet is formed at the left side, a right side air outlet is formed at the right side, and an air outlet is formed at the bottom side; A left blower fan disposed vertically on the inner left side of the main body and having a left side flow fan portion for discharging air to the left side air discharge port and a left centrifugal fan portion for discharging air to the bottom air discharge port at the bottom; ; A left stabilizer for separating an intake flow path and an exhaust flow path of the left cross flow fan portion; A left scroll for guiding the air blown by the left centrifugal fan to the bottom air outlet; A right blower fan disposed vertically on the inner right side of the main body, and having a right side flow fan portion for discharging air to the right side air discharge port and a right centrifugal fan portion for discharging air to the bottom air discharge port at the bottom; A right stabilizer for distinguishing an intake flow path and an exhaust flow path of the right cross flow fan portion; And a right scroll for guiding the air blown by the right centrifugal fan to the bottom air outlet. A first step of confirming a blowing mode of the air conditioner; If the blowing mode identified in the first step is a single operation mode for discharging the air conditioned in either of the left and right directions of the room, the left blowing fan installed on the inner left side of the air conditioner and the inside right side of the air conditioner And a second step of rotating only one of the installed right blower fans. A first step of confirming a blowing mode of the air conditioner; If the blowing mode identified in the first step is a one-way operation mode for discharging more air in the right and left direction of the room, the left blower fan installed on the left side of the inside of the air conditioner and the inside of the air conditioner And a second step of rotating the right blowing fan installed at the right side at different rotational speeds, respectively.

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