PURPOSE: To achieve a comfortable air conditioning by minimizing deviation of the room temperature from the set temperature.
CONSTITUTION: Outputs from an operation input unit 1, a target temperature setting device 2 and a room temperature sensor 3 are inputted into a logical operation unit 4 comprising a temperature deviation detector 5, an initial speed setting device 6, an operation/stop signal generator 7, a temperature deviation change detector 8, a temperature deviation upper limit detector 9, a turning speed holding device 10 and a timer 11 to ensure that the rotational speed N of a motor 13 changes by a fixed range in response to variation of the room temperature T at a fixed rate through a motor operation controller 12. At the start of the operation, the room temperature T>TMAX. Therefore, the operation is started at the maximum speed NMAX and then, the speed N is lowered by a fixed range each time the room temperature T falls at a fixed rate after a time t0. In this way, the operation is continued at intrervals of t1...ti1. After the ti1 exceeds the specified time, the speed N is corrected by a value proportional to (T-TR) to bring the room temperature T close to the set value TR. Under such a condition, the operation continues for the time tj1.
IIZUKA KENICHI
KAWAGUCHI YUUJI
UZUHASHI HIDEO
| JPS5484345A | 1979-07-05 |