HEAT PUMP DRYER

PROBLEM TO BE SOLVED: To provide a miniaturizable heat pump dryer. SOLUTION: Components of a heat pump are provided for circulating a cooling medium in a compressor 1, a radiator 2, an expansion valve 3 and an evaporator 4, in sequence and a circulation flow path for a drying air is formed where the drying air heated by the radiator 2 is guided into a dried object 5, the drying air absorbing the moisture of the dried object 5 is guided into the evaporator 4 for cooling and dehumidifying operation and the drying air is guided into the radiator 2 again for heating operation. The radiator 2 and/or the evaporator 4 is formed into a plate shape and arranged on the inner periphery face or the outer periphery face of a plate forming the circulation flow path. The radiator and/or the evaporator is constructed as part of the plate forming the circulation flow path, and so a small space is required for arranging these and the smooth circulation of the drying air is achieved. COPYRIGHT: (C)2003,JPO