To prevent odor from being discharged to a room or the like and improve a moisture reducing factor by providing an evaporator and a condenser in a ventilation passage through which a first opening part communicates with a second opening part and supplying a refrigerant to the condenser by a compressor and blowing air in the ventilation passage by a blower.
A first opening part 5 is provided above a container 4 for housing a material to be dried and a second opening part 6 is provided below the container. In a ventilation passage 28 through which the first opening part 5 communicates with the second opening part 6, an evaporator 16 and a condenser 17 are provided. One pipe in the condenser 17 is connected to the forward pipe 19 of a compressor 18. The return pipe 20 of the compressor 18 is connected to one pipe of the evaporator 16. Further, the other pipe of the condenser 17 is connected to the other pipe of the evaporator 16 by a connecting pipe 21 so that air in the ventilation passage 28 is blown by a blower 23 and a refrigerant from the compressor 18 is supplied to the condenser 17. Thus, the odor of the material to be dried in the container 4 is not exhausted outside a dryer and the moisture reducing factor of the material to be dried can be improved.
MORIWAKI TAKASHI
OKUDA TERUO
TOKYO SANYO ELECTRIC CO