| 摘要 |
A laundry dryer includes a heat-pump assembly configured to cool airflow coming from a laundry container and then to heat airflow returning to the laundry container. The heat-pump assembly has a first heat exchanger configured to transfer heat from the airflow arriving from the laundry container to a low-pressure refrigerant, and a second heat exchanger configured to transfer heat from a high-pressure refrigerant to the airflow directed back into the laundry container. The heat pump assembly has a refrigerant cooler or refrigerant flow-rate adjuster which are configured to adjust, respectively, the temperature or the pressure of the low-pressure refrigerant, and a detector configured to measure one physical quantity of the laundry dryer. The heat pump assembly also includes an auxiliary heat exchanger which transfers heat from the high-pressure refrigerant to the low-pressure refrigerant. |
