JPH10141741A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner which can improve amenity and can save energy by effectively stirring air in a room. SOLUTION: A turbo fan to blow out air which is drawn from the front surface side, to the outside in the radial direction based on the axis, is arranged in a casing, and a heat-exchanger is arranged on the front surface side of the turbo fan in the casing. At air outlets 2-5 which blow out the blown out air from the turbo fan in the vertical direction and the lateral direction, an upper flap 8, a lower flap 9, a left flap 6 and a right flap 7, which can totally close respective air outlets, are openably attached. Then, in a heating operation, each time when hot air stays at an upper area in a room, the lower flap 9 is placed under a totally closed state for a specified period of time by a flap control unit, and at the same time, hot air is blown out from the upper air outlet by opening the upper flap 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner that blows air sucked from the front in four directions, that is, vertically and horizontally.

[0002]

2. Description of the Related Art Conventionally, as an air conditioner, a cross fin heat exchanger and a cross flow fan are arranged in a substantially rectangular casing attached to a wall surface, and an air outlet provided at a lower side of the casing. Some blow out conditioned air from However, the air conditioner has a drawback that it does not fit the interior of the room because the protrusion from the wall surface is large and the depth cannot be reduced. Therefore, the applicant of the present application has manufactured an indoor unit of an air conditioner capable of improving the interior characteristics of a room by reducing the thickness. This air conditioner includes a heat exchanger, and a turbo fan that is disposed on the rear side of the heat exchanger and blows air sucked from the front side outward in a radial direction with respect to an axis. The air conditioner includes outlets that blow in four directions, that is, up and down and left and right, and upper, lower, left and right flaps attached to the respective outlets, and a rear surface is attached to a wall surface. In the heating operation, the lower flap and the left and right flaps are opened to blow out warm air in the downward and leftward directions, while in the cooling operation, the upper flap and the left and right flaps are opened to cool air in the upper and leftward directions. Blow out.

[0003]

However, in the air conditioner using the turbo fan, warm air stays in the vicinity of the air conditioner body during the heating operation, or warm air stays in the upper part of the room. However, there is a problem that the lower part of the room cannot be effectively warmed, the comfort is impaired, and when the heating capacity is increased to make the living space under the room an appropriate temperature, the operating efficiency is reduced. . Further, in the air conditioner described above, during the cooling operation, since the cool air easily accumulates below the room, the comfort may be impaired.

An object of the present invention is to provide an air conditioner that can improve comfort and save energy.

[0005]

According to a first aspect of the present invention, there is provided an air conditioner having a turbo fan disposed in a casing and blowing air taken in from a front side radially outward with respect to an axis. A heat exchanger disposed on the front side of the turbofan in the casing, and a fully openable and closable exhaust port provided in the casing so as to blow air blown from the turbofan in the vertical and horizontal directions. The upper flap, the lower flap, the left flap, and the right flap, which are attached to be able to close and control the wind direction of the blowout from the outlet, and the opening and closing of the upper flap, the lower flap, the left flap, and the right flap, and heating. When warm air stays in a part of the room during operation, the lower flap is fully closed for a predetermined period, and the upper flap is opened. Control means.

According to the air conditioner of the first aspect, during the heating operation, for example, when the warm air stays near the air conditioner body or when the warm air stays above the room, the flap control means is provided. Thus, the lower flap is fully closed for a predetermined period, and the upper flap is opened. By doing so, warm air is blown out from the upper outlet, and the warm air staying in the vicinity of the main body of the air conditioner or in the upper part of the room is agitated to spread the warm air throughout the room. At this time, when the left flap and the right flap are opened, the hot air is blown out in the left-right direction and the upward direction, and the hot air is circulated so as to wrap the room along the ceiling surface and the wall surface, and is widely stirred. be able to. In this way, stirring the whole room,
The lower side of the room can be effectively heated, comfort can be improved, and energy can be saved.

[0007] The air conditioner according to the second aspect of the present invention is the first aspect of the invention.
The air conditioner according to any one of claims 1 to 3, further comprising: a turbofan control unit configured to increase a rotation speed of the turbofan during the predetermined period; and a heating capacity reducing unit configured to decrease a heating capacity during the predetermined period.

According to the air conditioner of the second aspect, the turbo fan control means increases the rotation speed of the turbo fan and reduces the heating capacity during the predetermined period in which the lower flap is fully closed and the upper flap is open. By lowering the heating capacity, the temperature of the air is lowered so that the warm air can easily flow to the lower part of the room, and the air velocity of the air is increased to increase the efficiency of the warm air that has accumulated near the air conditioner main unit or in the upper part of the room. Can be stirred quickly and well.

[0009] The air conditioner according to the third aspect is characterized by the first aspect.
Alternatively, in the air conditioner of the second aspect, the flap control means opens the left flap and the right flap for the predetermined period.

According to the air conditioner of the third aspect, by opening the left flap and the right flap, hot air is blown out in the left-right direction and the upward direction, and the air is circulated along the ceiling surface and the wall surface in the room. Thus, the air is stirred in a wide range of space, and the temperature distribution in the room can be made substantially uniform.

[0011] The air conditioner of claim 4 is characterized in that
In any one of the air conditioners of (1) to (3), the flap control means sets the left flap, the right flap and the upper flap to a fully closed state after the predetermined period has elapsed,
It is characterized in that only the lower flap is opened.

According to the air conditioner of the fourth aspect, since the warm air is blown only downward from the lower outlet and the other outlets are completely closed, the wind speed is increased and the reach distance is reduced. By extending the room, the room after stirring of the staying warm air can be quickly heated to an appropriate temperature.

According to a fifth aspect of the present invention, there is provided an air conditioner which is disposed in a casing and blows air taken in from a front side outward in a radial direction with respect to an axis, and a front side of the turbo fan in the casing. And a heat exchanger disposed in the casing and attached to the outlet provided in the casing so as to blow the air blown out from the turbo fan in the up-down direction and the left-right direction so as to be freely openable and closable, and from the blow-out port. The upper flap, the lower flap, the left flap, and the right flap that control the wind direction of the blowout, and the opening and closing of the upper flap, the lower flap, the left flap, and the right flap, and cool air stays in a part of the room during the cooling operation. When, for a predetermined period, the upper flap is fully closed, and flap control means for opening the lower flap is provided. I have.

According to the air conditioner of the fifth aspect, during the cooling operation, for example, when cold air stays below the room,
The upper flap is fully closed for a predetermined period by the flap control means, and the lower flap is opened. By doing so, the cool air is blown out from the lower outlet to agitate the cool air that has accumulated at the lower side of the room, and to spread the cool air to the upper side of the room. At this time, when the left flap and the right flap are opened, the cool air is blown out in the left and right direction and downward, and the cool air is circulated so as to wrap the room along the floor surface and the wall surface, so that it can be widely stirred. it can. In this way, the entire room can be agitated and the room can be uniformly cooled, so that comfort can be improved and energy can be saved.

The air conditioner according to claim 6 is the same as claim 5.
The air conditioner of the present invention is characterized by comprising a turbo fan control means for increasing the rotation speed of the turbo fan for the predetermined period, and a cooling capacity reducing means for reducing the cooling capacity for the predetermined period.

According to the air conditioner of the sixth aspect, during the predetermined period in which the lower flap is fully closed and the upper flap is open, the rotation speed of the turbo fan is increased by the turbo fan control means, and the cooling capacity reducing means is reduced. By lowering the cooling capacity, the temperature of the blown air is increased so that the cool air can easily flow upward in the room, and the wind speed of the blown air is increased, so that the cool air staying in the lower part of the room can be efficiently and quickly stirred.

The air conditioner according to claim 7 is the same as claim 5.
Alternatively, in the air conditioner of Item 6, the flap control means opens the left flap and the right flap for the predetermined period.

According to the air conditioner of the seventh aspect, by opening the left flap and the right flap, cool air is blown out in the left-right direction and downward direction to circulate the air along the floor and wall surfaces in the room. Thus, the air can be stirred in a wide range of space, and the temperature distribution in the room can be made substantially uniform.

The air conditioner according to the eighth aspect is the fifth aspect.
In any one of the air conditioners of (1) to (7), the flap control means sets the left flap, the right flap and the lower flap in a fully closed state after the predetermined period has elapsed,
Only the upper flap is opened.

According to the air conditioner of the eighth aspect, since the cool air is blown only upward from the upper outlet and the other outlets are completely closed, the wind speed is increased, and the reaching distance is extended. In addition, the room after stirring of the staying cool air can be quickly cooled to an appropriate temperature.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an air conditioner according to the present invention will be described in detail with reference to the illustrated embodiments.

(First Embodiment) FIG. 1 is a perspective view of an indoor unit of an air conditioner according to a first embodiment of the present invention. The indoor unit of this air conditioner is provided with outlets 2 to 5 for blowing conditioned air vertically and horizontally in a substantially square casing 1 (the outlet 2 is shown in FIG. 3, and the outlet 5 is shown in FIG. 4). A left flap 6 is rotatably mounted on the left outlet 2 and a right flap 7 is rotatably mounted on the right outlet 3 (see FIG. 3). An upper flap 8 is rotatably attached to the upper outlet 4 and a lower flap 9 is rotatably attached to the lower outlet 5 (see FIG. 4). In addition, each said flap 6-9 is
While controlling the wind direction of each of the outlets 2 to 5,
Each of the outlets 2 to 5 can be fully closed.

FIG. 2 is a circuit diagram of the air conditioner. The air conditioner includes a compressor 11 and the compressor 11.
A four-way valve 12 connected to the discharge side, an outdoor heat exchanger 13 having one end connected to the four-way valve 12, and a pressure reducing device 14 having one end connected to the other end of the outdoor heat exchanger 13. An indoor heat exchanger 15 having one end connected to the other end of the pressure reducing device 14 and the other end of the indoor heat exchanger 15 connected to the suction side of the compressor 11 via a four-way valve 12. I have. The compressor 11, the four-way valve 12, the outdoor heat exchanger 13, and the pressure reducing device 14
And the indoor heat exchanger 15 constitute a refrigerant circuit. Further, the air conditioner includes the compressor 11 and the decompression device 14.
And a turbo fan 16 disposed on the rear side of the indoor heat exchanger 15, an upper flap motor 21 for driving the upper flap 8, and a lower flap for driving the lower flap 9. The motor includes a motor 22, a left flap motor 23 for driving the left flap 6, and a right flap motor 24 for driving the right flap.

The control device 10 includes a microcomputer, an input / output circuit, and the like. The timer 10a manages the time during the heating operation and the cooling operation, and the upper flap motor 21, the lower flap motor 22, Operation of the compressor 11, a flap control unit 10 b as a flap control unit for controlling the left flap motor 23 and the right flap motor 24, a turbo fan control unit 10 c as a turbo fan control unit for controlling the turbo fan 16. A compressor control unit 10d for controlling the frequency.
Further, the compressor control unit 10d has a heating capacity lowering unit that lowers the operating frequency of the compressor 11 to lower the heating capacity.

In the air conditioner having the above configuration, when the four-way valve 12 is switched to the switching position indicated by the solid line and the compressor 11 is started, the high-pressure refrigerant discharged from the compressor 11 is condensed in the indoor heat exchanger 15. After being expanded and reduced in pressure by the pressure reducing device 14, the low-pressure refrigerant evaporates in the outdoor heat exchanger 13. The turbo fan 16 sucks air from the suction port 1a provided on the front side of the casing 1 through the indoor heat exchanger 15, and outputs the heat-exchanged hot air to the left and right and lower outlets 2, 3. , 5 to heat the room. In this way, the room is heated, but with time, warm air may stay near the indoor unit main body or warm air may stay above the room. At this time, the flaps 6 to 9, the turbo fan 16 and the compressor 11 are controlled to agitate the staying warm air.

FIG. 5 is a flowchart for explaining the operation of the control device 10 for stirring the staying warm air during the heating operation. The predetermined times t1, t2, and t3, which will be described later, are set when the timer 10a starts according to the size of the room, the room temperature, and the outside air temperature.

Hereinafter, the operation of the control device 10 will be described with reference to the flowchart of FIG.

First, in step S1, it is determined whether or not the vehicle is running. If it is determined that the vehicle is running, the process proceeds to step S2. If it is determined that the vehicle is not running, the process proceeds to step S13 to reset the timer 10a. Then, the process returns to step S1.

Next, after starting the timer 10a in step S2, the process proceeds to step S3, where the flap control unit 10
b, motor 23 for left flap, motor 2 for right flap
By controlling the motor 4 and the lower flap motor 22, the left and right and lower flaps 6, 7, 9 are opened, and warm air is blown out from the left, right and lower outlets 2, 3, 5 to heat the room. Then, the process proceeds to step S4, where it is determined whether or not the counted time t of the timer 10a is equal to or longer than a predetermined time t1. If it is determined that the counted time t of the timer 10a is equal to or longer than the predetermined time t1, the process proceeds to step S5. That is, based on the size of the room, the room temperature and the outside air temperature, the time during which warm air stays in a part of the room is estimated, and the estimated time is set to a predetermined time t1, and when the predetermined time t1 has elapsed since the start of operation. Then, it is determined that the warm air has stayed in a part of the room, and the stirring operation after step S5 is performed. On the other hand, in step S4, the timer 10a
Is determined to be less than the predetermined time t1,
It returns to step S1.

Next, in step S5, the rotation speed of the turbo fan 16 is increased by the turbo fan control unit 10c, the operating frequency of the compressor 11 is reduced by the compressor control unit 10d, and the blowing temperature is reduced.

Next, in step S6, the flap control unit 10
b, the lower flap motor 22 is controlled to bring the lower flap 9 into the fully closed state.
After controlling the upper flap motor 21 by 0b and opening the upper flap 8, in step S8, the staying air is agitated by the air blown out from the left, right and upper air outlets 2, 3, and 4.

Next, in step S9, it is determined whether or not the counted time t of the timer 10a is equal to or longer than a predetermined time t2.
Is determined to be equal to or longer than the predetermined time t2,
While proceeding to step S10, the time t of the timer 10a is counted.
Is less than the predetermined time t2, step S9
repeat.

Next, in step S10, the flap control unit 1
0b to control the flap motors 21 to 24,
The lower flap 9 is opened, and the left flap 6, right flap 7 and upper flap 8 are fully closed. And step S
The process proceeds to step S11, where it is determined whether or not the timer time t of the timer 10a is equal to or longer than a predetermined time t3. If it is determined that the timer time t of the timer 10a is equal to or longer than the predetermined time t3, the process proceeds to step S12. If it is determined that t is less than the predetermined time t3, step S11 is repeated.

Next, at step S12, the rotation speed of the turbo fan 16, the operating frequency of the compressor 11, and the flaps 6-9
Is returned to the normal operation state, the process returns to step S1, and steps S1 to S12 are repeated.

As described above, during the heating operation, when warm air stays near the indoor unit main body or when warm air accumulates in the upper part of the room, the flap control unit 10b causes the flap control unit 10b to perform the predetermined period (t).
2-t1), as shown in FIG. 3, the lower flap 9 is fully closed and the upper flap 8 is opened, so that warm air is blown out from the upper outlet 4 and stays near the indoor unit main body. The warm air and the warm air staying in the upper part of the room are agitated to spread the warm air to the lower part of the room. Therefore, when the warm air stays in a part of the room, the whole room is stirred and the lower side of the room is effectively heated, so that comfort can be improved and energy can be saved.

Further, the flap control unit 10b
When the lower flap 9 is fully closed and the upper flap 8 is opened for a predetermined period (t2-t1), the turbo fan control unit 10c increases the rotation speed of the turbo fan 16 to increase the wind speed of the blowout. The operating frequency of the compressor 11 is reduced by the compressor control unit 10d to reduce the heating capacity,
Since the blowing temperature is lowered, the warm air staying in the upper part of the room can be efficiently and quickly stirred.

By opening the left flap 6 and the right flap 7, hot air can be blown out in the left-right direction and upward direction, and air can be effectively circulated along the ceiling surface and wall surfaces in the room.

After a predetermined period (t2-t1), the flap control unit 10b sets the left flap 6, the right flap 7 and the upper flap 8 to the fully closed state for a predetermined period (t3-t2), and only the lower flap 9 And blow out warm air only in the downward direction,
Since the other outlets are fully closed, the wind speed of the blowout from the lower outlet 9 is increased, the reaching distance is extended, and the room after stirring can be quickly heated.

(Second Embodiment) FIG. 6 is a flowchart of a control device for an air conditioner according to a second embodiment of the present invention. Note that this air conditioner has the same configuration as the air conditioner shown in FIGS. 1 and 2, and description of the same components will be omitted, and FIGS. 1 and 2 will be referred to for those components. The compressor control unit 10d illustrated in FIG. 2 includes a cooling capacity reducing unit that reduces the operating frequency of the compressor 11 to reduce the cooling capacity.

In the air conditioner having the above configuration, when the four-way valve 12 is switched to the switching position indicated by the dotted line and the compressor 11 is started, the high-pressure refrigerant discharged from the compressor 11 is condensed in the outdoor heat exchanger 13. After being expanded and reduced in pressure by the pressure reducing device 14, the low-pressure refrigerant evaporates in the indoor heat exchanger 15. The turbo fan 16 sucks air from the inlet 1a on the front side of the casing 1 via the indoor heat exchanger 15, and blows out the heat-exchanged cool air from the left and right and upper outlets 2, 3, and 4. Cool the room. Thus,
Although the room is cooled, cold air may stay below the room with the passage of time. At this time, each flap 6
-9, controlling the turbo fan 16 and the compressor 11,
Stir cold air.

FIG. 6 is a flowchart for explaining the operation of the control device 10 for stirring the staying cool air during the cooling operation.

Hereinafter, the operation of the control device 10 for stirring the staying cool air during the cooling operation will be described with reference to the flowchart of FIG.

First, in step S21, it is determined whether or not the vehicle is running. If it is determined that the vehicle is running, the process proceeds to step S22. If it is determined that the vehicle is not running, the process proceeds to step S33.
And resets the timer 10a and proceeds to step S21.
Return to

Next, after starting the timer 10a in step S22, the process proceeds to step S23, in which the left flap motor 23, the right flap motor 24, and the upper flap motor 21 are controlled by the flap control unit 10b, and the The upper flaps 6, 7, 8 are opened, and cool air is blown out from the left, right and upper outlets 2, 3, 4 to cool the room.
Then, the process proceeds to step S24, where it is determined whether or not the counted time t of the timer 10a is equal to or longer than a predetermined time t1.
Is determined to be equal to or longer than the predetermined time t1,
Proceed to step S25. That is, based on the size of the room, the room temperature and the outside air temperature, the time when the cool air stays in a part of the room is estimated, the estimated time is set to the predetermined time t1, and when the predetermined time t1 has elapsed since the start of operation. Then, it is determined that the cool air has stayed in a part of the room, and the stirring operation after step S5 is performed. On the other hand, if it is determined in step S24 that the counted time t of the timer 10a is less than the predetermined time t1, the process returns to step S21.

Next, in step S25, the rotation speed of the turbo fan 16 is increased by the turbo fan control unit 10c.
The operating frequency of the compressor 11 is reduced by the compressor control unit 10d, and the blowing temperature is increased.

Next, in step S26, the flap control unit 1
0b, the upper flap motor 21 is controlled to fully close the upper flap 8, and in step S27, the lower flap motor 22 is controlled by the flap controller 10b to open the lower flap 9, and then to step S28. Then, the staying air is stirred by the air blown out from the left, right, and lower blowout ports 2, 3, and 5.

Next, in step S29, it is determined whether or not the counted time t of the timer 10a is equal to or longer than a predetermined time t2.
If it is determined that the time t of 0a is equal to or longer than the predetermined time t2, the process proceeds to step S30. If it is determined that the time t of the timer 10a is less than the predetermined time t2, step S29 is repeated.

Next, in step S30, the flap control unit 1
0b to control the flap motors 21 to 24,
The upper flap 8 is opened, and the left flap 6, the right flap 7 and the lower flap 9 are fully closed. And step S
In step S31, it is determined whether or not the time t of the timer 10a is equal to or longer than the predetermined time t3. If it is determined that the time t of the timer 10a is equal to or longer than the predetermined time t3, the process proceeds to step S32, while the time of the timer 10a is determined. If it is determined that t is less than the predetermined time t3, step S31 is repeated.

Next, at step S32, the rotation speed of the turbo fan 16, the operating frequency of the compressor 11, and the flaps 6-9
Is returned to the normal operation state, the process returns to step S21, and steps S21 to S32 are repeated.

As described above, when cool air stays below the room during the cooling operation, the flap control unit 10b closes the upper flap 8 and closes the lower flap 9 as shown in FIG. By opening the lower outlet 5
Then, cool air is blown out, and the cool air that has stayed at the lower side of the room is agitated to spread the cool air throughout the room. Therefore, when the cool air stays in a part of the room, the whole room is stirred and the whole room is effectively cooled, so that comfort can be improved and energy can be saved.

Also, the flap control unit 10b
During the above-mentioned predetermined period (t2-t1), the upper flap 8 is fully closed, and when the lower flap 9 is opened, the rotation speed of the turbo fan 16 is increased by the turbo fan control unit 10c.
As the wind speed of the blowout increases, the compressor control unit 10d
As a result, the operating frequency of the compressor 11 is reduced, the cooling capacity is reduced, and the blowout temperature is increased, so that the cool air staying in the lower part of the room can be efficiently and quickly stirred.

By opening the left flap 6 and the right flap 7, cool air can be blown out in the left and right direction and downward, and air can be effectively circulated along the floor and wall surfaces in the room.

After a predetermined period (t2-t1), the flap control unit 10b puts the left flap 6, the right flap 7 and the lower flap 9 in the fully closed state for a predetermined period (t3-t2), and only the upper flap 8 , So that the cold air is blown only upward and the other outlets are fully closed, so that the wind speed of the outlet from the upper outlet 4 increases, extending the reach,
The room after stirring can be cooled quickly.

In the first and second embodiments, a predetermined time t1 to be compared with the time t measured by the timer 10a is set on the basis of the size of the room, the room temperature and the outside temperature, and the operation is started or the stirring operation is terminated. After elapse of the predetermined time t1, it was determined that the warm air or cool air stayed in a part of the room.However, the temperature distribution in the room was measured using an infrared sensor or the like, and based on the measured temperature distribution, the warm air or cool air was stayed. It may be detected.

In the first and second embodiments, the predetermined times t1, t2, and t3 to be compared with the time t measured by the timer 10a are the same in the heating operation and the cooling operation.
t2 and t3 may be appropriately set separately for the heating operation and the cooling operation according to the size of the room, the room temperature, the outside air temperature, and the like.

In the first and second embodiments, the operating frequency of the compressor 11 is reduced to lower the heating capacity and the cooling capacity. However, the heating capacity and the cooling capacity are reduced by another method. Is also good.

In the first and second embodiments, the left and right flaps 6 and 7 are opened when performing the stirring operation. However, the left and right flaps may be fully closed or the opening degree may be reduced.

In the first and second embodiments, the air conditioner performing the heating operation and the air conditioner performing the cooling operation have been described. However, the present invention may be applied to both the heating operation and the cooling operation.

[0059]

As is apparent from the above description, the air conditioner according to the first aspect of the present invention has a turbo fan that blows air sucked from the front side in a radially outward direction with respect to an axis, and is disposed inside the casing. Arrange the heat exchanger on the front side of the turbo fan inside, to the outlet provided in the casing to blow out the air blown from the turbo fan in the vertical and horizontal directions, upper flap, lower flap, left flap and The right flap is freely openable and fully openable, and the upper flap, lower flap, left flap and right flap are controlled by flap control means,
In addition to controlling the wind direction of the blowout from each outlet, the flap control means causes the lower flap to be fully closed and the upper flap to be opened for a predetermined period when warm air stays in a part of the room during the heating operation. Things.

Therefore, according to the air conditioner of the first aspect of the present invention, if the warm air stays near the air conditioner main body or the warm air stays above the room during the heating operation, the flap control is performed. By means, the lower flap is fully closed for a predetermined period of time, and the upper flap is opened, thereby blowing out warm air from the upper outlet to agitate the warm air stagnating in the upper part of the room, thereby making the entire room uneven. Heat without heating. Therefore, the entire room is effectively heated without increasing the heating capacity, so that comfort can be improved and energy can be saved.

According to a second aspect of the present invention, in the air conditioner of the first aspect, the rotation speed of the turbo fan is increased by the turbo fan control means during the predetermined period, and the heating capacity is reduced by the heating capacity reduction means. By lowering the temperature, the temperature of the blown air is lowered so that the warm air easily flows to the lower side of the room, and the wind speed of the blown air is increased so that the warm air staying in the upper part of the room can be efficiently and quickly stirred.

According to a third aspect of the present invention, there is provided the air conditioner of the first or second aspect, wherein the flap control means opens the left flap and the right flap for the predetermined period, so that the left and right directions can be changed. By blowing hot air upward, the air is circulated along the ceiling and wall surfaces in the room, and the air is stirred in a wide range, so that the temperature distribution in the room can be made substantially uniform.

According to a fourth aspect of the present invention, in the air conditioner according to any one of the first to third aspects, the flap control means includes the left flap and the right flap after the predetermined period has elapsed. And, since the upper flap is fully closed and only the lower flap is opened, the wind speed of the blowout from the lower outlet is increased, and the reaching distance is extended,
The room after stirring can be quickly heated.

In the air conditioner according to the present invention, a turbo fan that blows air sucked from the front side outward in the radial direction with respect to the shaft is disposed in the casing.
A heat exchanger is arranged on the front side of the turbo fan in the casing, and upper flaps, lower flaps, and left flaps are provided at outlets provided in the casing so as to blow air blown from the turbo fan in the vertical and horizontal directions. The upper flap, the lower flap, the left flap, and the right flap are controlled by flap control means to control the wind direction of the blowout from each outlet, respectively. When cool air stays in a part of the room during the cooling operation by the flap control means, the upper flap is completely closed and the lower flap is opened for a predetermined period.

Therefore, according to the air conditioner of the fifth aspect of the present invention, if cool air stays below the room during the cooling operation, the upper flap is completely closed for a predetermined period by the flap control means. Then, by opening the lower flap, cool air is blown out from the lower outlet to agitate the cool air that has accumulated at the lower side of the room, thereby uniformly cooling the entire room. Therefore, since the entire room is effectively cooled without increasing the cooling capacity, comfort can be improved and energy can be saved.

The air conditioner according to the invention of claim 6 is the air conditioner of claim 5, wherein during the predetermined period, the rotation speed of the turbo fan is increased by the turbo fan control means, and the cooling capacity is reduced by the cooling capacity reducing means. By lowering the temperature, the blowing temperature is increased so that the cool air easily flows to the upper side of the room, and the wind speed of the blowing is increased, so that the cool air staying at the lower side of the room can be efficiently and quickly stirred.

The air conditioner of the invention according to claim 7 is the air conditioner according to claim 5 or 6, wherein
Since the flap control means opens the left flap and the right flap, it blows cool air in the left and right direction and downward, circulates air along the floor and wall surfaces in the room, and stirs air in a wide range, The temperature distribution in the room can be made substantially uniform.

The air conditioner according to the invention of claim 8 is the air conditioner according to any one of claims 5 to 7, wherein the flap control means controls the left flap and the right flap after the predetermined period has elapsed. And since the lower flap is in the fully closed state and only the upper flap is opened, the wind speed of the blowout from the upper outlet increases, extending the reach,
The room after stirring can be cooled quickly.

[Brief description of the drawings]

FIG. 1 is a perspective view of an indoor unit of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a circuit diagram of the air conditioner.

FIG. 3 is a front view of the indoor unit of the air conditioner during a heating operation.

FIG. 4 is a front view of the indoor unit of the air conditioner during a cooling operation.

FIG. 5 is a flowchart illustrating an operation of the control device of the air conditioner of the first embodiment during a heating operation.

FIG. 6 is a flowchart illustrating an operation of the control device of the air conditioner according to the second embodiment during a cooling operation.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Casing, 1a ... Inlet, 2-5 ... Outlet, 6 ...
Left flap, 7 Right flap, 8 Upper flap, 9 Lower flap, 10 Controller, 10a Timer, 10b Flap controller, 10c Turbo fan controller, 10d Compressor controller, 11 Compression Machine, 12: four-way valve, 13: outdoor heat exchanger, 14: decompression device, 15: indoor heat exchanger, 16
... Turbo fan, 21 ... Motor for upper flap, 22 ... Motor for lower flap, 23 ... Motor for left flap, 24 ...
Right flap motor.

Claims (8)

[Claims] 1. A turbo fan (16) arranged in a casing (1) and blowing air sucked from the front side outward in a radial direction with respect to an axis; and the turbo fan (16) in the casing (1). A heat exchanger (15) disposed on the front side of the casing (1), and an outlet (2 to 5) provided in the casing (1) so as to blow air blown from the turbo fan (16) in the vertical and horizontal directions. Upper flap (8), lower flap (9), left flap (6), which is attached to the opening and closing and can be fully closed, and controls the wind direction of the blow-out from the outlets (2-5).
And controls the opening and closing of the upper flap (8), lower flap (9), left flap (6) and right flap (7), and the warm air stays in a part of the room during the heating operation. The air conditioner further comprises a flap control means (10b) for closing the lower flap (9) for a predetermined period and opening the upper flap (8) for a predetermined period. 2. The air conditioner according to claim 1, wherein a turbo fan control means (10c) for increasing a rotation speed of the turbo fan (16) for the predetermined period, and a heating capacity for reducing a heating capacity for the predetermined period. Lowering means (1
0d). 3. The air conditioner according to claim 1, wherein the flap control means (10b) opens the left flap (6) and the right flap (7) during the predetermined period. And air conditioner. 4. The air conditioner according to claim 1, wherein the flap control means (10b) controls the left flap (6) and the right flap (7) after the predetermined period has elapsed. ) And the upper flap (8) are fully closed, and only the lower flap (9) is opened. 5. A turbo fan (16) arranged in the casing (1) and blowing air sucked from the front side outward in a radial direction with respect to an axis; and the turbo fan (16) in the casing (1). A heat exchanger (15) disposed on the front side of the casing (1), and an outlet (2 to 5) provided in the casing (1) so as to blow air blown from the turbo fan (16) in the vertical and horizontal directions. Upper flap (8), lower flap (9), left flap (6), which is attached to the opening and closing and can be fully closed, and controls the wind direction of the blow-out from the outlets (2-5).
Control the opening and closing of the upper flap (8), the lower flap (9), the left flap (6) and the right flap (7), and cool air stays in a part of the room during the cooling operation. The air conditioner further comprises a flap control means (10b) for closing the upper flap (8) for a predetermined period and opening the lower flap (9) for a predetermined period. 6. The air conditioner according to claim 5, wherein a turbo fan control means (10c) for increasing a rotation speed of the turbo fan (16) for the predetermined period, and a cooling capacity for reducing a cooling capacity for the predetermined period. Lowering means (1
0d). 7. The air conditioner according to claim 5, wherein the flap control means (10b) opens the left flap (6) and the right flap (7) during the predetermined period. And air conditioner. 8. The air conditioner according to claim 5, wherein the flap control means (10b) controls the left flap (6) and the right flap (7) after the predetermined period has elapsed. ) And the lower flap (9) are fully closed, and only the upper flap (8) is opened.