| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in a refrigerating device comprising an invertor compressor of variable operational frequency wherein a motor of the invertor compressor is heated when the load applied to the refrigerating device is largely changed as the output voltage is decided only on the basis of stored waveform pattern of the output voltage-operational frequency in a conventional method, with respect to a method of deciding the output voltage of the invertor device. SOLUTION: As the output voltage of the invertor device is decided on the basis of low pressure, high pressure and the present operational frequency of the invertor compressor by a control device, the electric power proportional to the load of the refrigerating device can be supplied to the invertor compressor on the basis of the low pressure, the high pressure and the operational frequency. COPYRIGHT: (C)2008,JPO&INPIT
|
