| 摘要 |
PURPOSE:To enable to safely operate the device by a method wherein the motor of the air conditioning device is operated at the predetermined rotational speed without decreasing or increasing the rotational speed of the motor for controlling when the direction of changing tendency of room temperature is reversed. CONSTITUTION:Signals from an operating input unit 1, a desired temperature setter 2 and a room temperature sensor 3 are inputted to a logical operating unit 4 comprising a temperature deviation detector 5, an initial speed setter 6, a start-stop signal generator 7, a temperature deviation detector 8, a temperature deviation upper limit detector 9 and an operating speed holder 10 in order to control the rotational speed of the motor 12 through a motor operating controller 11. When room temperature is in a rising or falling tendency, the rotational speed of the motor is increased or decreased by the fixed amount in proportion to the change of the room temperature. On the other hand, when the changing tendency of room temperature is reversed, the rotational speed of the motor is held at the predetermined speed, without being decreased or increased. |
