| 摘要 |
PURPOSE:To make the enclosed type compressor non-vibrating by a method wherein a voltage or an electric current, supplied to the compressor, is controlled so as to generate a motor output torque, synchronized with and equal in magnitude to the change of load torque applied during one turn of the enclosed type compressor. CONSTITUTION:The information of the load applied to the compressor 13 is detected from a refrigerating cycle equipment by detectors 17-1, 17-2, the rotating position of the compressor 13 is detected by a position detector 18 and these signals are transferred to a control unit 20 through a signal transducer 19. The magnitude and timing of the load torque applied per one turn of the compressor are operated and decided in the control unit 20 based on these signals and a command is despatched to an electric source driving unit 21 to adjust and control the supplying voltage or current to the compressor 13 in every moment. According to this method, the motor output torque, perfectly synchronized with and equal in the magnitude to the waveform variation of the load torque during one turn of the compressor 13, is outputted, therefore, both of them are balanced perfectly and a vibrating source is removed fundamentally whereby the compressor 13 may be made non-vibrating. |
