JP2001355890A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a convenient air conditioner wherein blow-off temperature desired by a user can be set. SOLUTION: Indoor air is sucked with an indoor fan 10 and is heat exchanged with an indoor heat exchanger 5 and is blown into a room. A blow-off air temperature is detected by a blow-off temperature sensor 13. Set temperature of a blow-off temperature set section 27 that serves to set the blow-off air temperature is constructed to be set by a user. Temperature of air blown into a room is controlled in a control device 16 based upon the set temperature of the blow-off temperature set section 27 and the detection temperature of the blow-off temperature sensor 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly to an air conditioner which detects and controls the temperature of air blown into a room.

[0002]

2. Description of the Related Art As an air conditioner of prior art 1, as shown in Japanese Patent Application Laid-Open No. 60-147050, a temperature detecting means for delaying a fan motor operation at the start of a heating operation is used. In some cases, cold air does not come out to give discomfort.

[0003] That is, in order to prevent the blowing of cold air at the start of the heating operation, a blow-out temperature detection sensor is used as temperature detection means for delaying the operation to the fan motor set rotation speed.
At the start of the heating operation, the room temperature is detected by the blow-out temperature detection sensor, and when the temperature is equal to or higher than the set temperature, the fan motor is operated at the specified rotation speed for the air conditioner. The fan motor is operated at a low rotation speed, and when the outlet temperature reaches a set outlet temperature, the fan motor is operated at a specified rotation speed for the air conditioner.

[0004] As an air conditioner of the prior art 2,
As shown in JP-A-5-141749,
The compressor is controlled via the compressor controller so that the blow-out temperature detected by the blow-out temperature detector becomes a set blow-out temperature set in advance in the blow-out temperature setting device, and the number of times of the compressor operation stop within a predetermined time. In some cases, the CPU is configured to perform a control to increase the set outlet temperature of the outlet temperature setter by a predetermined value during a cooling operation and to lower the set outlet temperature by a predetermined value during a heating operation when a predetermined number of occurrences occur.

[0005]

However, in the air conditioner of the prior art 1, control is performed only at the start of the heating operation, and the user is not sufficiently considered during the operation. That is, the user cannot answer the request to set the desired blowing temperature depending on the user and the purpose of use. For example, during the heating operation, when the blown air directly hits the user, since a higher temperature feels more comfortable, a higher blowout temperature is required, and when entering the room from a cold outside air, High blowing temperatures are required even when wearing little clothing. Also, when the laundry is dried using an air conditioner, the blown air temperature needs to be high. Another special use is when drying the hair, which requires a higher blowing temperature to be used as a substitute for the dryer.

Further, the air conditioner of the prior art 2 automatically changes the set temperature of the blown air temperature according to the air conditioning load. Has not been fully considered. Further, in the prior art 2, the capacity of the compressor is controlled based on the temperature detected by the blowout temperature detector, and the problem is that the operating state of the refrigeration cycle must be changed by changing the capacity of the compressor. is there.

An object of the present invention is to provide a user-friendly air conditioner which can set a desired blowing temperature of a user.

Another object of the present invention is to provide an easy-to-use air conditioner which has good operability and can set a desired blowing temperature of a user.

Another object of the present invention is to provide an easy-to-use air conditioner that can set a desired blowing temperature of a user with a simple structure for controlling an indoor fan.

[0010]

A first feature of the present invention to achieve the above object is to provide a refrigeration cycle in which a compressor, an outdoor heat exchanger, a throttle device, and an indoor heat exchanger are connected by refrigerant piping. An indoor fan that sucks indoor air and exchanges heat with the indoor heat exchanger and blows out the room; an air temperature sensor that detects the temperature of air that blows into the room after exchanging heat with the indoor heat exchanger; An outlet temperature setting section for setting the temperature of the air to be blown out, and a control device for controlling the temperature of the air to be blown into the room, the blowout temperature setting section allows the user to set the set temperature, and the control device is a blowout temperature sensor The temperature of the air blown into the room is controlled based on the detected temperature of the air and the set temperature of the blow temperature setting unit.

A second feature of the present invention is that a remote controller for transmitting a control signal to the control device is further provided, and a blowout temperature setting section is provided on the remote controller as an operation button capable of setting a set temperature by a user. .

A third feature of the present invention is that a remote controller having a display unit and a control signal for transmitting a control signal to a control unit, and a user can set respective setting temperatures of a blowout temperature setting unit and a room temperature setting unit. The operation buttons are provided side by side on the remote controller, and the display section of the remote controller displays the set temperatures of the blowout temperature setting section and the room temperature setting section side by side.

A fourth feature of the present invention is that a refrigeration cycle in which a compressor, an outdoor heat exchanger, a throttle device, and an indoor heat exchanger are connected by a refrigerant pipe, and that indoor air is sucked to exchange heat with the indoor heat exchanger. An indoor fan that blows out indoors, a blowout temperature sensor that detects the temperature of air blown indoors after exchanging heat with the indoor heat exchanger, and a blowout temperature setting unit that sets the temperature of air blown indoors. A control device for controlling the rotation speed of the indoor fan, wherein the control device is configured to control the rotation speed of the indoor fan based on the detected temperature of the blow-out temperature sensor and the set temperature of the blow-out temperature setting unit.

A fifth feature of the present invention is that it further comprises a room temperature sensor for detecting a room temperature and a room temperature setting section for setting a room temperature, wherein the control device is provided for setting the detected temperature of the blowout temperature sensor and the setting of the blowout temperature setting section. The rotation speed of the indoor fan is controlled based on the temperature, and the operation of the refrigeration cycle is controlled together with the rotation speed of the indoor fan based on the detected temperature of the room temperature sensor and the set temperature of the room temperature setting unit.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, 1 is a compressor, 2 is a four-way valve constituting a switching valve, 3 is an outdoor heat exchanger, 4 is a throttle device such as an electric expansion valve, and 5 is a cross-fin type heat exchanger. Indoor heat exchanger, 8 is a propeller fan type outdoor fan,
9 is an outdoor fan motor, 10 is a once-through fan type indoor fan, 11 is an indoor fan motor, 12 is a room temperature sensor, 13
Is an outlet temperature sensor for detecting the temperature of air blown into the room after exchanging heat with the indoor heat exchanger, 14 is an outside air temperature sensor, 15 is an outdoor controller comprising a microcomputer and its peripheral devices, and 16 is a micro controller. An indoor side control device including a computer and its peripheral devices, 17 is an inverter circuit for varying the capacity of the compressor 1, 18 is an outdoor fan drive circuit, 19 is an indoor fan drive circuit, 20 is a first microcomputer, and 21 is a first microcomputer. Reference numeral 1 denotes a storage unit, 22 denotes a second microcomputer, 23 denotes a second storage unit, 24 denotes a timer device, and 25 denotes a remote controller for transmitting and receiving control signals to and from the indoor control device 16. Note that the outdoor control device 15 and the indoor control device 16 may be configured as one.

The compressor 1, the four-way valve 2, the outdoor heat exchanger 3, the expansion device 4, and the indoor heat exchanger 5 are sequentially connected by refrigerant pipes to form a refrigeration cycle. Compressor 1, four-way valve 2,
The outdoor heat exchanger 3, the expansion device 4, the outdoor fan 8, the outdoor fan motor 9, the outdoor control device 16 and the like are housed in an outdoor unit and arranged outdoors, and the indoor heat exchanger 5, the indoor fan 10, the indoor fan Motor 11 and indoor side control device 1
6 and the like are housed in an indoor unit and arranged above the wall surface in the room.

During the heating operation, the four-way valve 2 is switched as shown by the broken line in FIG. 1, and the refrigerant flows in the direction of the broken arrow to form a heating cycle. That is, during the heating operation, the refrigerant compressed by the compressor 1 is condensed in the indoor heat exchanger 5 and radiates heat to the indoor air, then expanded in the expansion device 4, evaporated in the outdoor heat exchanger 5, and evaporated. It absorbs heat from the air and then returns to the compressor 1 and so on.

During the cooling operation, the four-way valve 2 is switched as shown by the solid line in FIG. 1, and the refrigerant flows in the direction of the solid line arrow in FIG. 1 to constitute a cooling cycle. That is, during the cooling operation, the refrigerant compressed by the compressor 1 is condensed in the outdoor heat exchanger 3 and radiates heat to outdoor air, then expanded by the expansion device 4, evaporated in the indoor heat exchanger 5, and evaporated. Heat is absorbed from the air, and then returns to the compressor 1, and so on.

In each operation, the indoor air is sucked through the indoor heat exchanger 5 as shown by the dashed line in FIG. 1 by the rotation of the indoor fan 10 and exchanges heat with the indoor heat exchanger 5 to perform the heating operation. It is heated and cooled and blown out during cooling operation. The room temperature sensor 12 detects room temperature, but specifically detects the temperature of indoor air sucked into the indoor heat exchanger 5. The blow-out temperature sensor 13 detects the blow-out temperature. Specifically, the blow-out temperature sensor 13 detects the temperature of the indoor air that is heated or cooled by the indoor heat exchanger 5 and blown out.

The outdoor controller 15 includes a first microcomputer 20, a first storage means 21, and the like. The outdoor control device 15 takes in signals from the outside air temperature sensor 14 and the like, and controls the inverter circuit 17, the outdoor fan drive circuit 18, the first throttle device 4, and the like. The inverter circuit 17 can variably control the rotation speed of the compressor 1, and
The outdoor fan drive circuit 18 can variably control the rotation speed of the outdoor fan 8.

The indoor control unit 16 includes a second microcomputer 22, a second storage unit 23, and a timer unit 24.
Etc. are provided. The indoor side control device 16 includes the room temperature sensor 1
2a, the indoor humidity sensor 12b, the blow-out temperature sensor 13, the signals from the remote controller 25 and the like are taken in, and the indoor fan drive circuit 19 and the like are controlled. The indoor fan drive circuit 19 can variably control the rotation speed of the indoor fan 10.

The indoor control device 16 and the outdoor control device 15
Data communication is performed with the device. The control described below is basically performed by the microcomputer 22 of the indoor control device 16. As for the command of the compressor speed and the command of the outdoor fan speed, data is sent from the indoor control device 16 to the outdoor control device 15, and the actual compressor 1 and the outdoor fan 8 are transmitted.
Is performed by the outdoor controller 16. Further, temperature data from the outside air temperature sensor 14 attached to the outdoor unit is sent to the indoor side control device 16.

The remote controller 25 constituting the operation section includes an operation button 26 constituting an operation section, a blowout temperature setting button 27 constituting a blowout temperature setting section, a room temperature setting button 28 constituting a room temperature setting section, and a remote control display section 29. have. When the operation button 26 is pressed during the operation stop, the operation is started, and when the operation button 26 is pressed during the operation, the operation is stopped. Specifically, this operation is started in the automatic operation mode, and the cooling and heating operations are automatically performed based on signals from the room temperature sensor 12, the outside air temperature sensor 14, and the like. Note that cooling and heating operations can be performed by a manual operation switch, but are not shown.

The outlet temperature setting button 27 is for setting the outlet temperature so that the user of the air conditioner can obtain the desired outlet air temperature. In order for the user to set the desired outlet temperature, the initial value based on the operation mode is displayed on the set outlet temperature display section 29a of the remote controller display section 29 at the start of the operation of the air conditioner. By pressing the "∧" side of 27, the outlet temperature setting is raised and set, and the set temperature is displayed on the set outlet temperature display section 29a. By pressing the "∨" side, the outlet temperature setting is set. The temperature is set by lowering the temperature, and the set temperature is displayed on the set outlet temperature display section 29a. In the heating operation, the temperature cannot be set below the minimum temperature (for example, 35 ° C.).

As described above, the air temperature can be set by the air temperature setting button 27 so that the user of the air conditioner can obtain the desired air temperature.
An easy-to-use air conditioner can be provided.

Since the blowout temperature setting button 27 is provided on the remote controller 25 as an operation button, the blowout temperature can be set by a simple operation.

A room temperature setting button 28 is used to set a room temperature desired by a user of the air conditioner, and a setting initial value based on the operation mode is set at the start of operation.
It is displayed on the set temperature display section 29b of the remote control display section 29. When the setting initial value is changed, when the "室温" side of the room temperature setting button 28 is pressed, the outlet temperature setting is increased, and the increased set temperature is displayed on the set temperature display section 29b. When the "∨" side is pressed, the outlet temperature setting decreases and the lowered set temperature is displayed on the set temperature display section 29b.
To be displayed.

As described above, since the blowout temperature setting button 27 and the room temperature setting button 28 are juxtaposed on the remote controller 25, the room temperature setting and the blowout temperature setting can be performed reliably and easily.

The remote controller display section 29 is for displaying the operation state, and is provided with the above-mentioned set blowout temperature display section 29.
a, in addition to the set temperature display section 29b, the operation state display section 29
c etc.

As described above, the set outlet temperature display section 29a,
By having the set temperature display section 29b and the operation state display section 29c, the blowout temperature can be set by the blowout temperature setting button 27 while checking the operation mode and the set room temperature, and the set blowout temperature can be controlled. The mode and the room temperature can be confirmed in comparison with each other, which is convenient.

FIG. 3 shows a specific circuit configuration related to the indoor control unit 16. As shown in FIG. 3, the indoor control device 16 is driven by a power supply voltage of + 5V, and the indoor fan drive circuit 19 is driven by a power supply voltage of + 40V. When the blow-out air temperature is set by the blow-out temperature setting button 27 of the remote controller 25, the indoor-side control device 16 sends a fan speed output M to the indoor fan motor 11.
coming out. An output signal N for rotating the indoor fan motor 11 is provided from the indoor fan drive circuit 19 in proportion to the fan speed output M. In this way, the airflow of the indoor fan 10 is determined so as to reach the set blowout temperature given by the blowout temperature setting button 27.

Next, the operation of the air conditioner will be described with reference to FIG. Here, the case of performing the heating operation will be described.

First, the heating operation is started by operating the operation button 26 of the remote controller 25 (step 5).
0). In the case of the automatic operation mode, the calendar function,
The operation is automatically set based on the room temperature, the outside temperature, and the like. The heating operation is set when the room temperature is equal to or lower than a predetermined temperature. Next, the user operates the room temperature setting button 28 to set the room temperature desired by the user (step 51). If the operation of the room temperature setting button 28 has never been performed after the start of the operation, a preset initial value is set. Next, by operating the blowout temperature setting button 27, the blowout temperature of the room air desired by the user is set (step 52). If the blowout temperature setting button 27 is not operated, the blowout temperature is not set and the process proceeds to the next step 53.

Next, the room temperature is detected by the room temperature sensor 12 (step 53), and the temperature of the blown air is detected by the blowout temperature sensor 13 (step 54). Specifically, the room temperature sensor 12 and the blow-out temperature sensor 13 detect the room temperature and the blow-out air temperature, and constantly transmit signals to the indoor-side control device 16 so that the room-side control device 16 recognizes the room temperature and the blow-out air temperature.

Next, it is determined whether the temperature is equal to or higher than the cold air setting temperature (step 55). This determination is based on the blowout temperature sensor 13
This is performed by comparing the temperature detected in the above with a preset cold air prevention temperature. In this determination, when the blown air temperature is lower than the cold air prevention set temperature, it is determined whether a predetermined time has elapsed from the start of the heating operation (step 56).
If it is determined that the predetermined time has not elapsed, the fan speed of the ultra-light wind is used for detecting the blow-out temperature.
(Step 57), and the indoor fan drive circuit 19
Is driven (step 58), and the rotation speed of the indoor fan motor 11 is changed (step 59). In this way,
In the case where the blown air temperature is lower than the cold air prevention set temperature and the fixed time has not elapsed, it is possible to prevent the blowing of the cool air.

If it is determined in step 56 that the predetermined time has elapsed, it is determined whether the temperature is within the set room temperature (step 6).
0). This determination is made by determining whether the detected temperature of the room temperature sensor 12 and the set temperature of the room temperature setting button 28 are within a predetermined range, for example, within a range of 2 ° C. If it is determined that the temperature is not within the set room temperature range, a room temperature control operation is performed (step 61), and the operation is continued until the room temperature is set. This room temperature operation control is performed by the room temperature sensor 12.
The control method is performed by comparing the room temperature detected by the above with the set temperature set by the room temperature setting button 28. The control method is generally performed by controlling the compressor 1, the expansion device 4, the outdoor fan 8, and the indoor fan 10. Yes, details are omitted. Since the room temperature operation control is performed prior to the blow-out air temperature control described later, the indoor environment can be made comfortable.

If it is determined in step 60 that the room temperature is out of the range of the set room temperature, the rotation speed of the compressor 1 is increased to increase the room temperature. The determination as to whether or not the blow-out air temperature has been set (step 62) is made based on whether or not the blow-out air temperature has been set in step 52. In this determination, if the blowout temperature is not set, the indoor fan 10
Is output from the indoor side control device 16 (step 61), the indoor fan drive circuit 19 is driven (step 58), and the rotation speed of the indoor fan motor 11 is changed (step 59).

If it is determined in step 62 that the blowout air temperature has been set, it is determined whether the blown air temperature is within a set range (step 64). This determination is made based on whether the blown air temperature detected by the blowout temperature sensor 13 is within a predetermined temperature range of the set temperature set in step 52, for example, within a temperature difference of less than 2 ° C. If it is determined that the temperature is within the set range, the process proceeds to steps 63, 58, and 59, where the specified fan speed is output as described above, and the indoor fan 10 is rotated at the specified speed.

If it is determined in step 64 that the blown air temperature is not within the predetermined temperature range, it is determined whether the blown air temperature is higher than the blown air temperature setting (step 65). This determination is made based on whether or not the blown air temperature detected by the blowout temperature sensor 13 is higher than the set blowout temperature set by the blowout temperature setting button 27. In this determination, if the blown air temperature is higher than the set blowout temperature, control is performed to increase the fan speed above the specified fan speed (step 66). This control is performed by setting the fan speed higher than the specified fan speed by a predetermined speed to the indoor control device 1.
6 is output. Then, step 5
Proceeding to 8, 59, the rotational speed of the indoor fan 10 is increased.

If it is determined in step 65 that the blown air temperature is not higher than the set blowout temperature, control is performed to lower the temperature below the specified fan speed (step 67). This control is performed by outputting a fan speed lower than the specified fan speed by a predetermined speed from the indoor side control device 16. Then
Proceeding to steps 58 and 59, the rotation speed of the indoor fan 10 is reduced.

By such a control operation, it is possible to set a desired outlet air temperature during the heating operation, and to prevent the air from becoming uncomfortable with cold air when the air conditioner is operated near the air conditioner. That is, by changing the rotation speed of the indoor fan 10, the wind speed of the indoor air passing through the indoor heat exchanger 5 changes, so that the rate at which the indoor air exchanges heat with the indoor heat exchanger 5 and the temperature rises changes. As a result, the temperature of the blown air can be changed. In addition, since the amount of air passing through the indoor heat exchanger 5 also changes due to the change in the rotation speed of the indoor fan 10, the refrigeration cycle operates in response to this, and the temperature of the indoor heat exchanger 10 also changes, resulting in a synergistic effect. The temperature of the air blown out can be changed.

Also, by setting the desired blowing air temperature control to a high blowing temperature, it can be applied to the drying of clothes indoors, and the laundry in the room can be dried quickly. In addition, a high temperature setting has various effective functions, such as drying the hair.

Further, by setting the temperature of the blown air, even when the heating capacity of the air conditioner is reduced and the temperature of the blown air is reduced, the temperature of the indoor blower is controlled so that the blown air temperature is constant. It is possible to perform control to reduce the number of rotations to reduce the air volume.

Although the air temperature control during the heating operation has been described here, in the air conditioner capable of the cooling operation,
In the summer, such as after a bath, there is a time when the blow-out air temperature is controlled where cool air is preferred. In such a case, by setting the cool air temperature, it is possible to provide a value-added air conditioner that can provide new comfort.

[0046]

As described above, according to the present invention,
An easy-to-use air conditioner that can set the blowing temperature desired by the user can be obtained.

According to the present invention, the operability is good.
An easy-to-use air conditioner that can set the blowing temperature desired by the user can be obtained.

Further, according to the present invention, it is possible to obtain an easy-to-use air conditioner capable of setting a blow-out temperature desired by a user with a simple structure for controlling an indoor fan.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an air conditioner showing one embodiment of the present invention.

FIG. 2 is a plan view of a remote controller used for the air conditioner of FIG.

FIG. 3 is a configuration diagram of an indoor-side control circuit of the air conditioner of FIG. 1;

FIG. 4 is an operation flowchart of the air conditioner of FIG. 1 during a heating operation.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Compressor, 2 ... 4-way valve (switching valve), 3 ... Outdoor heat exchanger, 4 ... Throttle device, 5 ... Indoor heat exchanger, 8 ... Outdoor fan, 10 ... Indoor fan, 12 ... Room temperature sensor, 13 ... Blow-out temperature sensor, 14 ... Outside air temperature sensor, 15 ... Outdoor control device, 16 ... Indoor control device, 17 ... Inverter circuit, 1
8 outdoor fan drive circuit 19 indoor fan drive circuit
20 first microcomputer, 21 first storage device, 22 second microcomputer, 23 second
Storage device, 24: timer device, 25: remote control (operation unit), 26: operation button (operation operation unit), 27: blowing temperature setting button (blowing temperature setting unit), 28: room temperature setting button (room temperature setting unit) , 29 ... remote control display section, 29a ... set blowout temperature display section, 29b ... set room temperature display section, 29c ...
Operation status display section.

Claims (5)

[Claims] 1. A refrigeration cycle in which a compressor, an outdoor heat exchanger, a throttle device, and an indoor heat exchanger are connected by a refrigerant pipe, and an indoor room that draws indoor air, exchanges heat with the indoor heat exchanger, and blows the indoor air. A fan, a blowout temperature sensor for detecting a temperature of air blown into the room after heat exchange with the indoor heat exchanger, a blowout temperature setting unit for setting a temperature of the air blown into the room, A control device for controlling the temperature of the air to be blown out, wherein the blow-out temperature setting section enables a user to set a set temperature, and the control device is configured to detect a temperature of the blow-out temperature sensor and a set temperature of the blow-out temperature setting section. And controlling the temperature of the air blown into the room. 2. A refrigeration cycle in which a compressor, an outdoor heat exchanger, a throttle device, and an indoor heat exchanger are connected by a refrigerant pipe, and an indoor room that draws indoor air, exchanges heat with the indoor heat exchanger, and blows indoors. A fan, a blowout temperature sensor for detecting a temperature of air blown into the room after heat exchange with the indoor heat exchanger, a blowout temperature setting unit for setting a temperature of the air blown into the room, A control device for controlling the temperature of the air to be provided, and a remote control for transmitting a control signal to the control device, wherein the blowout temperature setting unit is provided on the remote control as an operation button capable of setting a set temperature by a user,
The air conditioner is characterized in that the control device controls the temperature of air blown into the room based on a temperature detected by a blow-off temperature sensor and a set temperature of the blow-out temperature setting unit. 3. A refrigeration cycle in which a compressor, an outdoor heat exchanger, a throttling device, and an indoor heat exchanger are connected by a refrigerant pipe, and an indoor room that sucks indoor air, exchanges heat with the indoor heat exchanger, and blows indoors. A fan, a blowout temperature sensor for detecting a temperature of air blown into the room after heat exchange with the indoor heat exchanger, a blowout temperature setting unit for setting a temperature of the air blown into the room, and setting a room temperature. A room temperature setting unit, and a control device for controlling the temperature of the air blown into the room, a remote controller having a display unit while transmitting a control signal to the control device, the blowout temperature setting unit and the room temperature setting The unit is provided in juxtaposition with the remote controller as operation buttons that can set respective set temperatures by a user, and the display unit of the remote controller sets the respective set temperatures of the blowout temperature setting unit and the room temperature setting unit. Displaying Te, the control unit air conditioner and controlling the temperature of air blown into the room on the basis of the set temperature of the detected temperature and the outlet temperature setting section of the air temperature sensor. 4. A refrigeration cycle in which a compressor, an outdoor heat exchanger, a throttle device, and an indoor heat exchanger are connected by a refrigerant pipe, and an indoor room that sucks indoor air, exchanges heat with the indoor heat exchanger, and blows the indoor air. A fan, a blowout temperature sensor that detects a temperature of air blown into the room after heat exchange with the indoor heat exchanger, a blowout temperature setting unit that sets a temperature of the air blown into the room, A control device for controlling the number of revolutions, wherein the control device controls the number of revolutions of the indoor fan based on a temperature detected by an air temperature sensor and a temperature set by the air temperature setting unit. . 5. A refrigeration cycle in which a compressor, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger are connected by a refrigerant pipe, and an indoor room that draws indoor air, exchanges heat with the indoor heat exchanger, and blows the indoor air. A fan, an outlet temperature sensor for detecting the temperature of air blown into the room after exchanging heat with the indoor heat exchanger, a room temperature sensor for detecting room temperature, and a setting unit for setting the temperature of the air blown into the room. And a controller for controlling the operation of the refrigeration cycle and the number of revolutions of the indoor fan, wherein the controller is configured to control a temperature detected by an outlet temperature sensor and the outlet temperature setting unit. The number of revolutions of the indoor fan is controlled based on the set temperature, and the operation of the refrigeration cycle is shared with the number of revolutions of the indoor fan based on the temperature detected by the room temperature sensor and the set temperature of the room temperature setting unit. Air conditioner and controls.