| 摘要 |
The objective of the present invention is to provide an air conditioning device that can perform a defrosting operation while performing a heating operation, and that can have increased compactness of a heat source. The air conditioning device can execute at least: a heating/heat storage operation in which an indoor heat exchanger (12) and a heat storage heat exchanger (10) function a condensers, heat-source-side heat exchangers (5A, 5B) function as evaporators, and heat is stored at a heat storage material while performing a heating operation; a first heating/defrosting operation in which a heat-source-side heat exchanger (5A) and the indoor heat exchanger (12) function as condensers, a heat-source-side heat exchanger (5B) and the heat storage heat exchanger (10) function as evaporators, heat is collected from the heat storage material while performing a heating operation, and a defrosting operation of a heat source (100) is performed; and a second heating/defrosting operation in which a heat-source-side heat exchanger (5B) and the indoor heat exchanger (12) function as condensers, a heat-source-side heat exchanger (5A) and the heat storage heat exchanger (10) function as evaporators, heat is collected from the heat storage material while performing a heating operation, and a defrosting operation of a heat source (200) is performed. The first heating/defrosting operation and the second heating/defrosting operation are performed in sequence with the heating/heat storage operation therebetween. |
