| 摘要 |
PURPOSE:To prevent the generation of the inflow and the outflow of cold air into respective chambers as well as the sound of buzz during the opening and closing of a damper by a method wherein the opening and closing operations of respective dampers are effected by one set of motor while the rotation of a fan is stopped during the operation of the motor. CONSTITUTION:A control unit 28, consisting of a microcomputer, inputs a position detecting signal HS from a position detecting switch 25 and controls a compressor 10, a fan 12 and a motor 24 in accordance with the input signals of a refrigerating chamber temperature (F) sensor 14, a cold storage chamber temperature (R) sensor 16 and a chilled chamber temperature (C) sensor 18. The rotation of the fan 12 is stopped during the opening and closing operation of both dampers 20, 22 or the rotation of the motor 24 especially. Further, the rotation and stop of the compressor 10 and the fan 12 are determined by the room temperature of a refrigerating chamber, which is detected by the F sensor 14. The rotation of the fan 12 is stopped during the opening and/or closing operation of the R damper 20 and the C damper 22 whereby the inflow of unnecessary air is eliminated and the sound of buzz of the fan 12 will never be generated. |
