JP2000097473A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner capable of air-conditioning so as to obtain comfortableness while suppressing the consumption of energy. SOLUTION: When the one-touch economy button of a remote controller is pushed down during the operation of an air conditioner, setting temperature is set to 28.5 deg.C when a current operating mode is a cooling operation, to 20.5 deg.C when it is a heating operation or to room temperature when it is a dry operation or an automatic operation (steps 200 to 208). Then, current setting is lowered (step 210). In the case of the cooling operation, upper and lower flaps are set to perform fluctuating swing based on a 1/f fluctuation (steps 212, 214). Further, when air volume is not high during the heating operation, a fluctuating air supply based on the 1/f fluctuation is controlled (steps 216, 218). Further, in the case of the dry operation mode, the operating frequency of a compressor is lowered by 4 Hz (steps 220, 222).

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 performing an air conditioning operation in an energy saving mode for suppressing energy consumption.

[0002]

2. Description of the Related Art An air conditioner (hereinafter, referred to as an "air conditioner") for indoor air conditioning controls indoor cooling (dry) by controlling the capacity of a compressor or the amount and direction of conditioned air blown into the room. Or, a heating operation is performed.

[0003] In some of such air conditioners, an energy saving mode in which unnecessary energy consumption is suppressed by suppressing the driving capability is set.

[0004] In the energy saving mode, for example, the air conditioning operation is performed by increasing the set temperature in the cooling operation or by lowering the set temperature in the heating operation. However, this alone cannot reduce the energy consumption so much. Further, if the energy consumption is excessively suppressed, the feeling of comfort may be impaired.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to propose an air conditioner capable of performing air-conditioning control so as to obtain a comfortable feeling while suppressing energy consumption. Aim.

[0006]

According to the first aspect of the present invention,
An air conditioner for controlling the air volume and direction of conditioned air blown into a room and controlling the capacity of a compressor for air conditioning in a room, and a selecting means for selecting a desired operation mode from a plurality of operation modes including an energy saving mode. And shifting means for shifting the set temperature to a predetermined temperature when the energy saving mode is selected by the selecting means, and suppressing means for suppressing the maximum current value of the operating current.

According to the first aspect of the invention, when the energy saving mode is selected by the selection means, the set temperature is shifted to the predetermined temperature by the shift means. For example, the set temperature is set to 28.5 ° C. for the cooling operation, and the set temperature is set to 20.5 ° C. for the heating operation. That is,
In the cooling operation, set the temperature higher than the normal cooling operation set temperature.
In the heating operation, the operation capacity is slightly reduced by setting the set temperature lower than the set temperature of the normal heating operation. During the dry operation, the temperature is set to the set temperature (restricted to the range of 20 ° C. to 28 ° C.) when the energy saving mode is selected by the selection unit. Thereby, energy consumption can be suppressed.

Further, the maximum current value of the operating current is suppressed by the suppression means. For example, the maximum current value is suppressed by switching to 15 A in a model having an electric capacity of 20 A (ampere) and to 10 A in a model of 15 A, so that energy consumption can be further reduced.

According to a second aspect of the present invention, when the energy saving mode is selected by the selecting means, the air volume is reduced by 1 /.
It is characterized by further comprising an air volume control means for controlling based on f fluctuations.

According to the second aspect of the present invention, in the energy saving mode, since the air volume is changed irregularly by the air volume control means based on the 1 / f fluctuation, the operation is performed in the energy saving mode in which the driving capacity is slightly reduced. But you can get a feeling of comfort.

According to a third aspect of the present invention, there is further provided a flap control means for controlling the flap for changing the wind direction based on 1 / f fluctuation when the energy saving mode is selected by the selection means. I have.

According to the third aspect of the present invention, in the energy saving mode, the flap for changing the wind direction is changed irregularly based on the 1 / f fluctuation. But you can get a feeling of comfort.

According to a fourth aspect of the present invention, when the energy saving mode is selected by the selecting means and the operation mode is the dehumidifying operation mode, the frequency of the compressor is reduced by a predetermined value.

According to the fourth aspect of the invention, in the dehumidifying operation in the energy saving mode, the frequency of the compressor is set to a predetermined value,
For example, it is lowered by 4 Hz. Thereby, energy consumption can be suppressed.

[0015]

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 or heating operation by circulating the refrigerant in 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, the flow of the refrigerant in the cooling mode (cooling operation) and the heating mode (heating operation) are indicated by arrows. By switching the four-way valve 24, the operation mode is changed to the cooling mode (dry mode). 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 air 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 operate 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 the room temperature, and a heat exchange temperature sensor 86 for detecting the 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 an air volume and a wind direction which will be described later.
Various data such as fluctuation data necessary for control based on the / f fluctuation are stored. 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 terminals 92A, 92B, and 92C of the terminal plate 92 are respectively connected to 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, and 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.

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 has a casing 122 and a display window 124 using a rectangular liquid crystal panel. 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, energy saving mode (hereinafter,
One-touch eco button 132 for setting operating conditions (eco-mode), an operation switching button 138 for sequentially switching the operation mode among automatic, heating, dry, cooling, air blowing, and air cleaning, and blowing out from the outlet 50 of the indoor unit 12. An air volume button 140 for switching the setting of the air volume and the air direction, an air direction button 142, a sleep button 144 for obtaining a comfortable sleep, an amp switching button 146, a timer input button 150, a timer off button 152, and a timer setting button 154 are provided. The operating capacity of the air conditioner 10 can be variously set. Display window 1
A display corresponding to these operations is displayed on 24 (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 setting of the one-touch eco button 132 is stored even when the one-touch eco button 132 is depressed while the operation is stopped. Therefore, the one-touch eco button 13
When the operation is started after pressing 2, the eco mode is automatically set. Conversely, the setting is stored even when the operation is stopped by pressing the one-touch eco button 132 during driving, and the eco mode is automatically set when the driving is started again. That is, the setting and cancellation of the eco mode can be performed only by operating the one-touch eco button 132. The eco mode operates in each of the cooling, heating, dry, and automatic operation modes.

The amp 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 for setting 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 including 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 168 sends an operation signal of the air conditioner 10 according 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 the timer of the operation of the air conditioner 10 is reserved, 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.

FIG. 9 shows the flow of control by the microcomputer 74 when the eco mode is selected while the air conditioner 10 is operating.

When the one-touch eco button 132 of the remote controller 120 is pressed during the operation of the air conditioner 10, first, at step 200, it is determined whether or not the current operation mode is the cooling operation. If the determination is affirmative, step 20
In step 2, the set temperature is set to 28.5 ° C., and in the case of a negative determination, it is determined in step 204 whether the operation mode is the heating operation. If the determination is affirmative in step 204, the set temperature is set to 20.5 ° C. in step 206. If the determination is negative, that is, if the operation mode is dry operation or automatic operation, the setting is made in step 208. The temperature is set to the room temperature detected by the room temperature sensor 84 (however, set within the range of 20 ° C. to 28 ° C.).
In the cooling and heating operations, the set temperature cannot be changed by the remote controller 120.

In step 210, the current setting is lowered.
That is, when the electric capacity is 20 A, the electric capacity is set to 15 A. If the electric capacity is 15A, the capacity is set to 10A. As a result, the maximum current value can be saved,
Energy consumption can be reduced. In this case, even if the amp switch button 146 of the remote controller 120 is pressed, the electric capacity is not switched.

Next, in step 212, it is determined whether or not the cooling operation is to be performed.
Is set so that the upper and lower flaps 54 swing at the positions of (6) to (3) based on the 1 / f fluctuation. Thereby, the fluctuation swing is started.

First, the control of the fluctuation swing is performed by 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. If the read fluctuation data is, for example, 70 or more, (6) to (3)
The upper and lower flaps 54 are controlled so as to swing at the position of (4).
The upper and lower flaps 54 are controlled so as to swing at the position (4). If the number is less than 40, 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.

[0060]

[Table 1] In the next step 215, fluctuation air blowing control is performed based on the 1 / f fluctuation. In the same manner as the fluctuation swing control, the fluctuation ventilation control shifts the fluctuation data obtained from the chaos arithmetic expression stored in the ROM 75 every minute and reads the data, and when the fluctuation data is equal to or more than a predetermined value or less than the predetermined value. In such a case, the air volume is changed based on a predetermined condition. Thereby, the air volume changes irregularly every minute, and a comfortable feeling can be given.

In step 216, it is determined whether or not the heating operation is being performed and the air volume is strong. If the determination is affirmative, the process proceeds to step 220. If the determination is negative, the process proceeds to step 220.
In step 218, fluctuation air blowing control is performed based on the 1 / f fluctuation. The fluctuation ventilation control is the same as the fluctuation ventilation control performed in step 215.

Next, in step 220, it is determined whether or not the operation is in the dry operation mode. If the determination is negative, the routine returns. If the determination is affirmative, the operation frequency of the compressor 26 is lowered by 4 Hz in step 222 (at room temperature 20). Operating frequency when the temperature is below ° C). Thereby, energy consumption can be suppressed.

As described above, in the eco mode, since the wind direction and the air volume are controlled based on the 1 / f fluctuation in accordance with the operation mode, a feeling of comfort can be given to some extent even when the vehicle is driven with reduced driving ability.

In the present embodiment, the swing swing is performed at the positions (6) to (3) 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.

[0065]

As described above, according to the first aspect of the present invention, in the cooling operation, the temperature is set higher than the normal cooling operation set temperature, and in the heating operation, the temperature is set lower than the normal heating operation set temperature. By setting the temperature, the operation capacity is slightly reduced, and the maximum current value of the operation current is suppressed by the suppression means, so that the energy consumption can be suppressed.

According to the second aspect of the present invention, in the energy saving mode, the air volume is changed irregularly based on the 1 / f fluctuation by the air volume control means. But you can get a feeling of comfort.

According to the third aspect of the present invention, in the energy saving mode, the flap for changing the wind direction is changed irregularly based on the 1 / f fluctuation. But you can get a feeling of comfort.

According to the fourth aspect of the invention, in the dehumidifying operation in the energy saving mode, the frequency of the compressor is reduced by a predetermined value, so that energy consumption can be suppressed.

[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 showing a flow of an eco mode control 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, suppression means, air flow control means, flap control means) 120 remote control (selection means)

 ──────────────────────────────────────────────────の Continuing on the front page (72) Kensuke Matsumoto 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Kazuhiro Shimaoka 2-chome Keihanhondori, Moriguchi-shi, Osaka No. 5-5 Sanyo Electric Co., Ltd. (72) Inventor Mitsuo Nakae 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. (Reference) 3L060 AA03 AA05 CC02 CC09 CC10 DD02 DD05 DD07 DD08 EE04 EE05 3L061 BE02 BF02

Claims (4)

[Claims] An air conditioner for controlling indoor air conditioning by controlling the amount and direction of air-conditioning air blown into a room and the capacity of a compressor, wherein a desired operation mode is selected from a plurality of operation modes including an energy saving mode. An air conditioner comprising: a selection unit for selecting a power saving mode; and a shift unit for shifting a set temperature to a predetermined temperature when the energy saving mode is selected by the selection unit; and a suppression unit for suppressing a maximum current value of an operation current. . 2. The air conditioner according to claim 1, further comprising an air volume control unit that controls the air volume based on 1 / f fluctuation when the energy saving mode is selected by the selection unit. 3. When the energy saving mode is selected by the selecting means, the flap for changing the wind direction is set to 1 /
The air conditioner according to claim 1, further comprising a flap control unit that performs control based on f fluctuations. 4. The compressor according to claim 1, wherein the frequency of the compressor is reduced by a predetermined value when the energy saving mode is selected by the selection unit and the operation mode is the dehumidification operation mode. The air conditioner according to item 1.