| 摘要 |
PROBLEM TO BE SOLVED: To drive a compressor in the frequency band that is higher or lower than the resonance frequency band, by changing and outputting the current running frequency determined from a current running frequency deciding means and driving the compressor at the frequency outputted from a drive frequency controller. SOLUTION: At the time of initial start of a refrigerator, an initial drive frequency setting means 100 sets the initial frequency of a compressor and sets the resonance band to a resonance frequency storage means 130. A load sensing means 110 senses the internal temperature of a refrigerator and a compressor temperature, and a current running frequency deciding means 120 determines the current running frequency. When the resonance band exists between the running frequency of compressor at the initial start time and the current running frequency, a variable speed setting means of a running frequency control means 150 rapidly varies the velocity increment coefficient to the predetermined increasing rate to drive the compressor with a compressor driving means 160. As a result, generation of noise and vibration can be minimized through suppression of resonance phenomenon. |
