One defrosting structure of one air-conditioning is arranged to the outdoor heat exchanger that promptly defrosts by defrosting part, interweaves, and a temperature sensor prevents a surface freezing of an outdoor heat exchanger in advance. An outdoor heat exchanger (10) for one air-conditioning be made of it refrigerant tube (11) wherein the refrigerant of a low temperature and low-pressure air current for heat operation, and the heat exchanging fin (12) being inserted by these refrigerant tubes, to the exchange heat between refrigerant and outdoor air. Defrosting part (20) is installed tightly to refrigerant tube to generate heat. Defrosting part is thermally generated member including one, generates heat when power is applied, and a heat transfer plate is installed as being thermally generated member from the heat transfer for being thermally generated member generation is additional.
展开▼
