JP2000171072A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner which can be controlled to ensure a comfortable sleep when a comfortable sleep mode is selected during normal operation. SOLUTION: When a comfortable sleep mode is selected during normal operation, set temperature is raised by 1 deg.C upon elapsing 1 hour after the comfortable sleep mode is selected (step 308). The set temperature is corrected by taking outer air (step 316, 318). Furthermore, frequency of a compressor is controlled such that the air conditioned supply air from an indoor unit has a temperature of lower limit (14 deg.C) or above by taking the air conditioned supply air from the indoor unit. A flap is swung, as required, when the direction of air is set in automatic mode. According to the arrangement, comfortable feeling can be provided while preventing overcooling.

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 capable of controlling air conditioning under suitable conditions during sleep.

[0002]

2. Description of the Related Art When an air conditioner (hereinafter, referred to as "air conditioner") for indoor air conditioning sleeps while performing a cooling operation, for example, the body temperature may drop during sleep and comfortable sleep may be hindered. is there. Conversely, when going to bed while performing the heating operation, the body temperature may rise during sleep and comfortable sleep may be hindered. For this reason, an air conditioner that can perform optimal air conditioning control during sleep by providing a sleep mode in the operation mode is conventionally known.

In such an air conditioner, for example, when switching from the normal cooling operation to the sleep mode, the set temperature is slightly increased after a lapse of a predetermined time from the switch to the sleep mode to prevent the room temperature from decreasing. Conversely, when the mode is switched from the normal heating operation to the sleep mode, the set temperature is slightly lowered after a lapse of a predetermined time from the switch to the sleep mode to prevent the room temperature from rising. However, there is a case where comfortable sleep cannot be obtained only by such control.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and it is possible to perform air-conditioning control so that a comfortable sleep can be obtained when a sleep mode is selected during normal driving. The purpose is to propose a possible air conditioner.

[0005]

According to the first aspect of the present invention,
A plurality of operations including a blow-off temperature detecting means for detecting a temperature of the conditioned air blown from a blowing means provided in the indoor unit, an outside air temperature detecting means for detecting an outside air temperature provided in the outdoor unit, and a sleep mode Selecting means for selecting a desired operation mode from a mode, shifting means for shifting a set temperature by a predetermined temperature after a lapse of a predetermined time from the time when the sleep mode is selected by the selecting means, and the shifting means After the shift of the set temperature by the correction means for correcting the set temperature based on the outside air temperature detected by the outside air temperature detection means, and based on the blowout temperature detected by the blowout temperature detection means Frequency control means for controlling the frequency of the motor driving the compressor of the outdoor unit.

According to the first aspect of the present invention, there is provided a selecting means for selecting a desired operation mode from a plurality of operation modes including a sleep mode. When the sleep mode is selected by the selecting means, the set temperature is shifted by the predetermined temperature shifting means after a lapse of a predetermined time from the selection time. For example, when the sleep mode is selected during the normal cooling operation, the set temperature is increased by 1 ° C. one hour after the selection. When the sleep mode is selected during the normal heating operation, the set temperature is set to 3 ° after one hour.
C, and after 3 hours, the set temperature is 1 ° C, that is, 4 ° from the set temperature when the sleep mode was set.
C lower.

After the shift of the set temperature by the shift means, for example, one hour after the cooling operation, or the second shift during the heating operation, ie, four hours after the outside air provided to the outdoor unit Based on the outside air temperature detected by the temperature detecting means, the correcting means corrects the set temperature. For example, in the case of the cooling operation, when the outside air temperature is high, the setting temperature is corrected to be slightly lower, and when the outside air temperature is low, the setting temperature is corrected to be slightly higher. At this time, the correction is made, for example, within 0.5 ° C. at the maximum.

The frequency of the motor for driving the compressor of the outdoor unit is controlled by the frequency control means based on the temperature of the conditioned air blown from the air blowing means detected by the blowing temperature detection means. For example, in the case of the cooling operation, the frequency of the motor that drives the compressor is controlled so that the blowout temperature becomes 14 ° or more. In the case of the heating operation, the frequency of the motor that drives the compressor is controlled so that the blowout temperature becomes 38 ° C. or less. in this way,
Correcting the set temperature within a predetermined range in consideration of the outside air temperature, or controlling the frequency of the motor that drives the compressor based on the blowing temperature, can further prevent excessive cooling or overheating.

According to a second aspect of the present invention, when the sleep mode is selected and the automatic wind direction mode for automatically changing the wind direction of the conditioned air blown from the blower is set, the wind direction is changed. The apparatus further comprises flap control means for controlling a flap to be controlled based on 1 / f fluctuation.

According to the second aspect of the invention, when the sleep mode is set and the automatic wind direction mode is set, the flap is swung by the flap control means based on 1 / f fluctuation. Therefore, a comfortable sleep can be obtained.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an air conditioner (hereinafter referred to as "air conditioner 10") applied to the present embodiment. The air conditioner 10 includes an indoor unit 12 and an outdoor unit 1.
4 and is operated / stopped by operating a wireless remote control switch (hereinafter, referred to as “remote control 120”) provided as a remote control means.
In addition, the air conditioner 10 operates in the operation mode with the remote control 120,
When an operation signal such as a set temperature is set and an operation signal is transmitted, the operation signal is received by the indoor unit 12 and operation based on the operation signal is performed.

FIG. 2 shows an indoor unit 1 of the air conditioner 10.
2 schematically shows a refrigeration cycle configured between the outdoor unit 2 and the outdoor unit 14. Between the indoor unit 12 and the outdoor unit 14, a pair of thick refrigerant pipes 16 </ b> A and a thin refrigerant pipe 16 </ b> B for circulating the refrigerant are provided in pairs, and one end of each of the heat pipes is provided in the indoor unit 12. It is connected to the exchanger 18.

The other end of the refrigerant pipe 16A is connected to the outdoor unit 1
4 is connected to the valve 20A. This valve 20A
Is connected to the four-way valve 24 via the muffler 22A. Each of the four-way valves 24 has a compressor 26.
Accumulator 28 and muffler 22B connected to
Is connected. Further, the outdoor unit 14 is provided with a heat exchanger 30. One end of the heat exchanger 30 is connected to the four-way valve 24, and the other end is connected to the valve 20B via a capillary tube 32, a strainer 34, an electric expansion valve 36, and a modulator 38. The other end of the refrigerant pipe 16B is connected to the valve 20B, so that the indoor unit 12 and the outdoor unit 1 are connected.
A closed circulation path for the refrigerant forming a refrigeration cycle is formed between the four refrigerant circuits.

The air conditioner 10 can perform a cooling operation or a heating operation by circulating the refrigerant through the refrigeration cycle by operating the compressor 26.

That is, in the cooling mode, the refrigerant compressed by the compressor 26 is liquefied by being supplied to the heat exchanger 30, and the liquefied refrigerant is vaporized by the heat exchanger 18 of the indoor unit 12. The air passing through the heat exchanger 18 is cooled. In the heating mode, on the contrary, the refrigerant compressed by the compressor 26 radiates heat by being condensed in the heat exchanger 18 of the indoor unit 12, and the air passing through the heat exchanger 18 by the heat radiated by the refrigerant. Heat.

In FIG. 2, arrows indicate the flow of the refrigerant in the cooling mode (cooling operation) and the heating mode (heating operation), respectively, and the operation mode is switched between the cooling mode (dry mode) by switching the four-way valve 24. The evaporating temperature of the refrigerant is adjusted by switching the heating mode and controlling the valve opening of the electric expansion valve 36.

FIG. 3 shows a schematic cross section of the indoor unit 12. The interior of the indoor unit 12 is covered by a casing 42 that is locked on the upper and lower sides (up and down on the paper surface of FIG. 2) of a mounting base 40 mounted on an indoor wall surface (not shown). In this casing 42, a cross flow fan 44 is arranged at the center. The heat exchanger 18 is arranged from the front side to the upper side of the cross flow fan 44, and the heat exchanger 18 and the casing 4
A filter 48 is arranged between the front surface 2 and the suction port 46 formed on the upper surface side. An outlet 50 is formed at a lower portion of the casing 42.

Thus, in the indoor unit 12, the air in the room is sucked in from the suction port 46 by the rotation of the cross flow fan 44, passes through the filter 48 and the heat exchanger 18, and then blows out from the outlet port 50 toward the room. Is done. Further, in the indoor unit 12, the heat exchanger 18 is cooled or heated by the operation of the refrigeration cycle, and the air sucked from the room is cooled or heated by the heat exchanger 18 when passing through the heat exchanger 18. The air is blown out into the room to achieve indoor air conditioning.

A left and right flap 52 and an upper and lower flap 54 are provided in the outlet 50.
The direction of the conditioned air blown out can be changed by the second and upper and lower flaps 54. Upper and lower flaps 5
4 can be changed to the positions (1) to (7) as shown in FIG. The position (1) and the position (2) form an angle of about 18 ° as an example, and similarly, the positions (2) and (3), (3) and (4), and (4) The positions of (5), (5) and (6) also form an angle of about 18 °. The position of (6) and the position of (7) are approximately 10
Make an angle of °.

As shown in FIG. 5, the indoor unit 12
Is provided with a power supply board 56, a control board 58, and a power relay board 60. On a power supply board 56 to which electric power for operating the air conditioner 10 is supplied, a motor power supply 62, a control circuit power supply 64, a serial power supply 66, and a drive circuit 68 are provided. The control board 58 is provided with a serial circuit 70, a drive circuit 72, and a microcomputer 74.

The drive circuit 68 of the power supply board 56 is connected to a fan motor 76 (for example, a DC brushless motor) for driving the cross flow fan 44, and receives a control signal from a microcomputer 74 provided on the control board 58. In response, driving power is supplied from the motor power supply 62.
At this time, the microcomputer 74 controls the speed of the fan motor 76 by controlling the output voltage from the drive circuit 68 to change in the range of 12 V to 36 V in 256 steps.

The drive circuit 72 of the control board 58 is connected to an upper and lower flap motor 78 for operating the power relay board 60 and the upper and lower flaps 54. The power relay board 60 is provided with a power relay 80, a temperature fuse, and the like. The power relay 80 is operated by a signal from the microcomputer 74 to open and close a contact 80A for supplying power to the outdoor unit 14. Air conditioner 1
In the case of 0, the electric power is supplied to the outdoor unit 14 when the contact 80A is closed, so that the outdoor unit 14 is operated.

The upper and lower flap motors 78 are controlled in accordance with a control signal from the microcomputer 74 to control the upper and lower flaps 5.
Operate 4. When the upper and lower flaps 54 are swung in the vertical direction, the outlet 50 of the indoor unit 12 is opened.
The direction in which air is blown out of the apparatus is changed in the vertical direction. The operation of the upper and lower flaps 54 can be fixed so that the blowing wind is directed to an arbitrary position (positions (1) to (6) in FIG. 4).
Can be randomly changed at the positions (1) to (7).

As described above, in the indoor unit 12 of the air conditioner 10, by controlling the rotation of the cross flow fan 44 and the operation of the upper and lower flaps 54, the air flow is controlled to a desired air volume and direction or to make the room comfortable. The air conditioned by the air volume and the wind direction can be blown into the room.

The serial circuit 70 is connected to the microcomputer 74 and the serial power supply 66 of the power supply circuit 56, and further to the outdoor unit 14. The microcomputer 74 performs serial communication with the outdoor unit 14 via the serial circuit 70, and controls the operation of the outdoor unit 14.

The indoor unit 12 is provided with a display circuit 82 provided with a receiving circuit for receiving an operation signal from a remote controller 120 described later, a display LED for operation display, and the like. 74. As shown in FIG. 1, the display portion 82A of the display substrate 82 is exposed on the surface of the casing 42, and an operation signal from the remote controller 120 is received and input by the display portion 82A.

As shown in FIG. 5, the microcomputer 74 is connected to a ROM 75, a room temperature sensor 84 for detecting a room temperature, and a heat exchange temperature sensor 86 for detecting a coil temperature of the heat exchanger 18, and a control board. The service LED provided at 58 and the operation changeover switch 88 are connected. Note that a temperature sensor is also provided in a remote controller 120 to be described later, and the room temperature is normally measured by the remote controller 120 and transmitted at a predetermined timing.

The ROM 75 stores various kinds of data such as fluctuation data necessary for controlling a sleep mode, which will be described later, and a lower limit value of the discharge temperature in the sleep mode in the cooling operation and an upper limit value of the discharge temperature in the sleep mode in the heating operation. Have been. Since the ROM 75 is an external ROM,
The various data can be easily changed.

The operation changeover switch 88 is for switching between a normal operation and a test operation performed at the time of maintenance or the like.
The contact of the power switch 88A is opened so that the supply of the operating power to the air conditioner 10 can be cut off. Normal,
The operation changeover switch 88 is set to a normal operation. The service LED is turned on at the time of maintenance to notify a service person of a self-diagnosis result.

The indoor unit 12 is connected to the outdoor unit 14 via terminals 90A, 90B, 90C of the terminal board 90.

On the other hand, as shown in FIG. 6, the outdoor unit 14 is provided with a terminal plate 92, and the terminals 92A, 92B, 92C of the terminal plate 92 are respectively connected to the terminals 90A of the terminal plate 90 of the indoor unit 12. , 90B,
90C. Thereby, the outdoor unit 1
Operation power is supplied to the indoor unit 12 from the indoor unit 12, and serial communication with the indoor unit 12 is possible.

The outdoor unit 14 includes a rectifying board 9
4. A control board 96 is provided. The control board 96 includes a microcomputer 98, noise filters 100A, 100B, 100C, and a serial circuit 102.
And a switching power supply 104 and the like.

The rectifying board 94 includes a noise filter 100
A rectifies the power supplied through the A
The data is smoothed via 00B and 100C and output to the switching power supply 104. The switching power supply 104 is connected to the inverter circuit 106 together with the microcomputer 98.
As a result, electric power having a frequency corresponding to the control signal output from the microcomputer 98 is output from the inverter circuit 106 to the compressor motor 108, and the compressor 26 is rotationally driven.

The microcomputer 98 is connected to the inverter circuit 1
The frequency of the power output from 06 is off or 14Hz
The control is performed so as to be in the range described above (the upper limit is determined by the upper limit of the operating current).
08, that is, the rotation speed of the compressor 26 is changed,
Capacity of compressor 26 (cooling / heating capacity of air conditioner 10)
Is controlled.

The control board 96 includes a four-way valve 2
4 and a fan motor 110 for driving a fan (not shown) for cooling the heat exchanger 30 and a fan motor condenser 110A. Also, the outdoor unit 14
Are provided with an outside air temperature sensor 112 for detecting the outside air temperature, a coil temperature sensor 114 for detecting the temperature of the refrigerant coil of the heat exchanger 30, and a compressor temperature sensor 116 for detecting the temperature of the compressor 26. 98.

The microcomputer 98 switches the four-way valve 24 in accordance with the operation mode, controls the control signal from the indoor unit 12, the outside air temperature sensor 112, and the coil temperature sensor 1.
On and off of the fan motor 110, the operating frequency of the compressor motor 108 (the capacity of the compressor 26) and the like are controlled based on the detection results of the compressor 14 and the compressor temperature sensor 116.

In the cooling or dry operation, the cooling region where the cooling operation is performed, the dry AA region where the cooling operation is lower than the cooling region but the dehumidifying ability is higher than the dry A region, the room temperature and the set temperature are compared. A dry A region in which the dry operation is performed so that the operating frequency of the compressor 26 is reduced to a predetermined value based on a linear equation set based on the temperature difference, the compressor 26 is turned on and off at predetermined intervals at the predetermined value, and intermittently. A dry B region in which the operation is performed is set. In the cooling area, the dry AA area, and the dry A area, the compressor 26 may be forcibly turned off, for example, for about 3 minutes.

FIGS. 7A and 7B show an example of a remote control 120 used for remote control of the air conditioner 10. FIG.

The remote control 120 is provided with a display window 124 using a rectangular liquid crystal panel in a casing 122. As shown in FIG. 7 (B), various operation conditions such as an operation mode, a set temperature, a room temperature (room temperature), and an air volume can be displayed on the display window 124. FIG. 7 (A)
As shown in FIG. 2, during the operation of the air conditioner 10, set operating conditions or operating conditions, such as an operating mode, a set temperature or room temperature, and an air volume, are selected and displayed.

As shown in FIGS. 7A and 7B, a start / stop button 1 is provided on the surface of the casing 122.
26, temperature setting buttons 128A, 128B, one-hour timer (1H timer) button 130, one-touch eco button 132 for setting operation conditions for energy saving, operation modes are automatic, heating, dry, cooling, ventilation, air purifying. An operation switching button 138 for sequentially switching, an air volume button 140 for switching the air volume blown out from the outlet 50 of the indoor unit 12 and a wind direction, a wind direction button 142, a sleep button 144 for obtaining a comfortable sleep, and an amp switching button. 146, a timer on button 150, a timer off button 152, and a timer setting button 154 are provided so that the operating capacity of the air conditioner 10 can be variously set. Further, a display corresponding to these operations is made on the display window 124 (for example, see FIG. 7A).

The air conditioner 10 has a run / stop button 126
Is operated / stopped by the operation of. The display window 124
Is increased by operating the temperature setting button 128A, and is decreased by operating the temperature setting button 128B.

The one hour timer button 130 is
The operation time of 0 is set to one hour, and when one hour elapses, a stop signal is transmitted from the remote controller 120 to the indoor unit 12 of the air conditioner 10.

The amperage switching button 146 is used to switch the setting of the used electric capacity.
It can be switched from 0 amps to 15 amps. As a result, the maximum current value can be saved, so that the breaker down can be prevented even when the electric appliance is used together with another electric appliance.

Each of the timer-in button 150 and the timer-off button 152 is used to set an operation start time and an operation stop time.
By operating the timer setting button 154 after the desired time is displayed by advancing or returning the reserved time displayed on the display window 124 by the operation of, the timer is reserved.

The casing 122 of the remote controller 120
Is provided with a cover 134.
4, the reset button 156 and the sensor switching button 158 are exposed as shown in FIG.

FIG. 8 is a functional block diagram of the remote controller 120. The remote controller 120 has a display section 160 for displaying the display window 120, an operation section 162 provided with the various setting buttons described above, A room temperature sensor 164 for detecting the room temperature and a timer circuit 166 having a clock function for measuring time are provided, and these are connected to a remote controller 168 having a microcomputer. The remote control unit 168 includes the indoor unit 12.
A transmission unit 170 for transmitting an operation signal to the control unit is connected.

The remote controller control unit 168 sends an operation signal of the air conditioner 10 corresponding to the operation state input from the operation unit 162 to the indoor unit 12 and
4 is also transmitted. Further, the remote control controller 168 confirms whether or not the indoor unit 12 is operating. This confirmation is made based on, for example, a reception response from the indoor unit 12 when an operation signal is transmitted.

When a timer reservation is made for the operation of the air conditioner 10, the remote controller 168 stores the reservation, and automatically sends an operation / stop signal to the indoor unit 12 according to the reservation. Operate air conditioner 10 /
It is designed to stop.

Next, the operation of the present embodiment will be described.

FIGS. 9 to 12 show the control flow of the microcomputer 74 when the sleep mode 144 is selected by pressing the sleep button 144 of the remote controller 120 while the air conditioner 10 is operating.

When the sleep mode is selected, in step 200 shown in FIG. 9, the current operation mode is cooling (dry).
It is determined whether or not the vehicle is in operation. If the determination is affirmative, the cooling (dry) operation control shown in FIG. If the determination is negative, it is determined in step 204 whether or not the heating operation is being performed. If the determination is affirmative, step 2 is performed.
At 06, the heating operation control shown in FIG. 12 is performed, and if a negative determination is made, the state is maintained.

In the cooling (dry) operation shown in FIG. 10, first, at step 300, a flag indicating whether or not one hour or more has elapsed since the sleep button 144 was selected is turned off (initialized). Then, in step 302, control is performed to set the wind direction shown in FIG. 11, that is, to set the position of the upper and lower flaps 54.

In step 400 shown in FIG. 11, it is determined whether or not the setting of the wind direction is in the automatic mode. If the determination is negative, the process returns. If the determination is affirmative, it is determined in step 401 whether the operating region is the cooling region or the compressor 26 is turned off. Driving by 72 sets the position of the upper and lower flaps 54 to the position (6) shown in FIG. In the case of a negative determination, it is determined in step 404 whether or not the operation area is in the dry AA area.
It is set to swing at the position (7). If the determination is affirmative, in step 408, the upper and lower flaps (6) to
At the position (4), a swing is set based on the 1 / f fluctuation. Thereby, the fluctuation swing is started.

The control of the fluctuation swing is performed by first setting the ROM 7
The fluctuation data as shown in Table 1 obtained from the chaos arithmetic expression stored in No. 5 is shifted and read from No. 1 to No. 120 every minute. Then, if the read fluctuation data is, for example, 50 or more, (6) to (4)
Is controlled so that the upper and lower flaps 54 swing at the position, and if it is less than 50, the upper and lower flaps 54 are controlled to swing at the positions (6) to (5). Thereby, the swing width changes irregularly every minute, and a comfortable feeling can be given.

[0056]

[Table 1]

When the setting of the wind direction is completed, it is determined whether or not the flag is ON in step 304 shown in FIG. 10. If the determination is affirmative, the process proceeds to step 316.
If a negative determination is made, it is determined in step 306 whether or not one hour has elapsed since the sleep mode was selected. If a negative determination is made in step 306, the process proceeds to step 320. If an affirmative determination is made, the set temperature is increased by 1 ° C. in step 308. This can prevent overcooling.

Next, at step 310, it is determined whether or not the operation area is in the dry AA area and the setting of the wind direction is in the automatic mode.
If the determination is affirmative, step 312 sets the upper and lower flaps 54 to swing at the positions (6) and (7). Then, the flag is turned on in step 314.
In step 316, the outside air temperature detected by the outside air temperature detection sensor 112 is fetched. And step 3
Based on the outside air temperature taken in 18, the set temperature is corrected within a range of, for example, 0.5 ° C. at the maximum. For example, when the outside air temperature is high, correction is made to lower the set temperature, and when the outside air temperature is low, correction is made to increase the set temperature.

Then, in step 320, the coil temperature of the heat exchanger 18 detected by the heat exchange temperature sensor 86, that is, the air temperature when the conditioned air is blown out from the air outlet 50 is taken in. In step 322, the blown temperature taken in And the lower limit value of the blowing temperature in the sleep mode in the cooling operation stored in the ROM 75 (for example, 14 ° C.)
If the taken-in air temperature is higher than 14 ° C., the process returns to step 304. If the taken-in air temperature is lower than 14 ° C., the operation frequency of the compressor 26 is lowered by a predetermined value in step 324. That is,
Reduce the cooling capacity. Thereby, it is possible to further prevent excessive cooling.

FIG. 12 shows a flow of control of the heating operation. First, a flag 1 indicating whether or not three hours or more have elapsed since the sleep button 144 was selected in step 500.
Then, the flag 2 indicating whether four hours or more have passed since the sleep button 144 was selected is turned off (initialized).
Then, in step 501, it is determined whether or not the setting of the wind direction is set to the automatic mode. If the determination is negative, the process proceeds to step 504. If the determination is affirmative, the position of the upper and lower flaps 54 is determined in step 502. Set to (2).

Then, in step 504, the flag 1
Is determined to be ON, and if the determination is negative, it is determined in step 506 whether three hours have elapsed since the sleep mode was selected. If a negative determination is made in step 506, the process proceeds to step 520. If an affirmative determination is made, the set temperature is decreased by 3 ° C. in step 508. This can prevent overheating. Then, in step 510, the flag 1 is turned on.

If the determination is affirmative in step 504, it is determined in step 512 whether the flag 2 is ON. If the determination is negative, the process proceeds to step 520. If the determination is negative, the process proceeds to step 514. It is determined whether four hours have elapsed since the sleep mode was selected. If the determination is negative, the process proceeds to step 520, and if the determination is affirmative, the set temperature is decreased by 1 ° C. in step 516. That is, the set temperature of 4 ° C. is lowered from the time when the sleep mode is selected. Then, in step 518, the flag 2 is turned ON.

In step 520, the outside air temperature detection sensor 1
The outside air temperature detected by the controller 12 is taken. Then, based on the outside air temperature taken in step 522, the set temperature is corrected within a range of, for example, 0.5 ° C. at the maximum. For example, when the outside air temperature is high, correction is made to lower the set temperature, and when the outside air temperature is low, correction is made to increase the set temperature.

Then, in step 524, the coil temperature of the heat exchanger 18 detected by the heat exchange temperature sensor 86, that is, the air temperature when the conditioned air is blown out from the air outlet 50 is taken in. In step 526, the blown temperature taken in And the upper limit value of the blowing temperature in the sleep mode in the heating operation stored in the ROM 75 (for example, 38 ° C.)
If the taken-in air temperature is lower than 38 ° C., the process returns to step 504. If the taken-in air temperature is higher than 38 ° C., in step 528, the operating frequency of the compressor 26 is lowered by a predetermined value. That is,
Reduce the heating capacity. This can further prevent overheating.

In this embodiment, the swing swing is performed at the positions (6) to (4) when performing the swing swing. However, the present invention is not limited to this, and the swing swing may be performed at another position as appropriate. Is also good.

[0066]

As described above, according to the first aspect of the present invention, the set temperature is corrected within a predetermined range in consideration of the outside air temperature, or the frequency of the motor driving the compressor is adjusted based on the blow-out temperature. Because of the control, it is possible to further prevent excessive cooling and excessive heating.

According to the second aspect of the invention, when the sleep mode is set and the wind direction is set to the automatic mode, the flap is swung by the flap control means based on the 1 / f fluctuation, so that a comfortable sleep is achieved. Can be taken.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an air conditioner applied to the present embodiment.

FIG. 2 is a schematic diagram showing a refrigeration cycle of an air conditioner applied to the present embodiment.

FIG. 3 is a schematic sectional view showing an indoor unit.

FIG. 4 is a schematic diagram showing positions of upper and lower flaps.

FIG. 5 is a block diagram schematically showing a circuit configuration of the indoor unit.

FIG. 6 is a block diagram schematically showing a circuit configuration of the outdoor unit.

FIG. 7A is a plan view of a remote controller showing an example of a display during operation of the air conditioner. (B) is a plan view of the remote control in which all characters displayed in the display window of the remote control are displayed.

FIG. 8 is a functional block diagram illustrating an example of a remote controller.

FIG. 9 is a flowchart illustrating a flow of a control routine in a sleep mode.

FIG. 10 is a flowchart showing the flow of a cooling (dry) operation routine.

FIG. 11 is a flowchart showing a flow of a wind direction setting routine.

FIG. 12 is a flowchart showing the flow of a heating operation routine.

[Explanation of symbols]

Reference Signs List 10 air conditioner (air conditioner) 12 indoor unit 14 outdoor unit 18 heat exchanger 26 compressor 30 heat exchanger 74 microcomputer (shift means, correction means, frequency control means, flap control means) 86 heat exchange temperature sensor (outlet temperature detection means) 112 outside air temperature sensor (outside air temperature detecting means) 120 remote control (selecting means)

Continuation of the front page (72) Hiroshi Hirose 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Naoto Saito 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Yoshinori Nakayama 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3L060 AA06 CC01 CC03 DD02 DD05 DD07 EE04

Claims (2)

[Claims] 1. An air temperature detection means for detecting a temperature of air-conditioned air blown from an air blowing means provided in an indoor unit, an outdoor temperature detection means for detecting an outdoor air temperature provided in an outdoor unit, and a sleep mode. And selecting means for selecting a desired driving mode from a plurality of driving modes including: when the sleep mode is selected by the selecting means,
Shifting means for shifting the set temperature by a predetermined temperature after a lapse of a predetermined time from the selected time point; and shifting the set temperature by the shift means, and then performing the setting based on the outside air temperature detected by the outside air temperature detecting means. An air conditioner comprising: a correction unit that corrects a temperature; and a frequency control unit that controls a frequency of a motor that drives a compressor of the outdoor unit based on the blowing temperature detected by the blowing temperature detecting unit. 2. When the sleep mode is selected and an automatic wind direction mode for automatically changing the wind direction of the conditioned air blown from the blower is set, the flap for changing the wind direction is 1 / f. The air conditioner according to claim 1, further comprising flap control means for controlling based on the fluctuation.