To provide a washing and drying machine including a heat pump and allowing a more reliable determination of completion of drying.
A washing and drying machine is provided that includes a drum 4 containing clothing; an air circulation mechanism 16 causing circulation of air in the drum 4 to flow through an air duct 17 back into the drum 4 during a drying process; a heat pump 22 having an evaporator 23 and a condenser 24 disposed within the air duct 17; temperature sensors 34 and 35 detecting an inlet-air temperature of inlet air supplied into the drum 4 and an outlet-air temperature of outlet air discharged from the drum 4, respectively; and a control device 36 monitoring the temperature difference between the inlet-air temperature and the outlet-air temperature to detect the maximum temperature difference and determining completion of drying based on the decreasing degree of the temperature difference. The control device 36 detects the maximum temperature difference between the inlet-air temperature and the outlet-air temperature after a lapse of a predetermined time period from the start of the operation of a compressor 27.
TOSHIBA CONSUMER ELECTRONICS HOLDINGS CORP
TOSHIBA HOME APPLIANCES CORP
| JP2007300945A | 2007-11-22 | |||
| JPH02249599A | 1990-10-05 | |||
| JP2009061163A | 2009-03-26 | |||
| JPH02229000A | 1990-09-11 | |||
| JP2008307151A | 2008-12-25 | |||
| JP2007136055A | 2007-06-07 | |||
| JP2010063752A | 2010-03-25 | |||
| JPH0112520B2 | 1989-03-01 |
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