| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve an energy-saving property by reducing a variation of a rotation frequency of a compressor and to achieve low noise during operation. <P>SOLUTION: The clothes dryer includes: a heat pump device 5; a rotary drum 1 for accommodating and drying clothes; a motor 3 for driving the rotary drum; a blower fan 11 for supplying warm air heated by the heat pump device to the rotary drum; a circulation air passage 14 for leading drying air to the rotary drum after blowing the drying air sent by the blower fan from a heat absorber 9 to a radiator 7; rotation frequency detection means 18 for detecting a rotation frequency of a compressor 6; coolant temperature detection means 17 for detecting a temperature of a coolant circulating in the radiator; and control means 19 for controlling the compressor and the like and controlling a drying operation. The control means restricts the upper limit of a rotation frequency of the compressor so that the temperature of the coolant does not reach the standard temperature at the time of constant rate driving and controls the compressor so that the rotation frequency becomes stable. <P>COPYRIGHT: (C)2013,JPO&INPIT |
