| 摘要 |
<p>A drying appliance comprising a drying chamber 1, a drying air circuit including an air inlet path (2) connected to a side of the drying chamber (1), an air outlet path (3) connected to the other side of the drying chamber (1), and a drying air fan (7) positioned along the air circuit, a heat pump system including a heat pump compressor (4), a first heat exchanger (5) for heating the refrigerant and arranged at the air inlet path (2), a second heat exchanger (6) for cooling the refrigerant and heating the drying air and arranged downstream of the first heat exchanger (5), and a third heat exchanger (9), provided outside the drying air circuit, wherein diverting valves (20, 21) provided between the second heat exchanger (6) on one hand and the first heat exchanger (5) and the third heat exchanger (9) on the other hand and between the first heat exchanger (5) and the third heat exchanger (9) on one hand and the compressor (4) on the other hand, respectively, are adapted to selectively connect the second heat exchanger (6) either to the first heat exchanger (5) or to the third heat exchanger (9) and the compressor (4) either to the first heat exchanger (5) or to the third heat exchanger (9), and wherein the air inlet path (2) and the air outlet path (3) can be either connected to each other in a closed loop, to define a condense type dryer wherein the second heat exchanger (6) is connected to the first heat exchanger (5) and the latter to the compressor (4) or opened to the ambient outside the cabinet to define a vented type dryer wherein the second heat exchanger (6) is connected to the third heat exchanger (9) and the latter to the compressor (4)</p> |
