JP2014035115A5 - - Google Patents

Claims (11)

A compressor that compresses and discharges the refrigerant;
A human body detection sensor for detecting the presence or absence of a person,
A control unit for controlling driving / stopping and rotation speed of the compressor;
With
The controller is
From the detection result of the human body detection sensor, it is determined that a person is absent, and when a predetermined waiting time has elapsed, the target set temperature is changed stepwise with the passage of time,
Based on a comparison between room temperature and the target set temperature, the air conditioner shifts to an energy saving operation mode in which a combination of driving and stopping of the compressor is repeated a plurality of times. The controller is
In the energy saving operation mode, a plurality of predetermined time intervals are set,
For each time interval, set each of the target set temperatures,
The air conditioner according to claim 1, wherein the rotation speed of the compressor is controlled so as to follow the target set temperature. The controller is
3. In the energy-saving operation mode during heating operation, when the room temperature becomes equal to or lower than the target set temperature, the driving of the compressor is resumed at a rotation speed corresponding to the target set temperature. Air conditioner as described in. The controller is
4. The air conditioner according to claim 3, wherein in the energy saving operation mode during the heating operation, the target set temperature is decreased at each time interval. The controller is
5. The target set temperature is set to any one of the same interval, a value that gradually increases the decrease range, a value that gradually decreases the decrease range, and a value that changes the decrease range in two stages. Air conditioner. The controller is
3. In the energy saving operation mode during cooling operation, when the room temperature becomes equal to or higher than the target set temperature, the driving of the compressor is resumed at a rotation speed corresponding to the target set temperature. Air conditioner as described in. The controller is
The air conditioner according to claim 6, wherein in the energy saving operation mode during the cooling operation, the target set temperature is increased at each time interval. The controller is
8. The air conditioning according to claim 7, wherein the target set temperature is set to any one of the same interval, a value that gradually increases the increase range, a value that gradually decreases the increase range, and a value that changes the increase range in two steps. Machine. The controller is
The air conditioner according to claim 5 or 8, wherein the time interval is set to one of the same interval, a value that gradually increases the time interval, and a value that gradually decreases the time interval. The controller is
The air conditioner according to any one of claims 1 to 9 , wherein when the energy saving operation mode has expired, the operation of the compressor is stopped. The controller is
The air conditioning according to any one of claims 1 to 9 , wherein when a person is present from the detection result of the human body detection sensor, the target set temperature is returned to a setting during normal operation. Machine.