Refrigeration cycle equipment having a compressor, an indoor heat exchanger connected to the compressor, an expansion valve connected to the indoor heat exchanger, an outdoor heat exchanger connected to the expansion valve, and a four-way valve through which the outdoor heat exchanger is connected to the compressor, the refrigeration cycle equipment comprising: a heat storage material disposed around the compressor to store heat generated by the compressor; a heat storage heat exchanger operable to heat exchange with heat stored in the heat storage material; a first pipe for connecting the compressor to the indoor heat exchanger; a second pipe for connecting the indoor heat exchanger to the expansion valve; a third pipe for connecting the expansion valve to the outdoor heat exchanger; a fourth pipe for connecting the outdoor heat exchanger to the compressor; a fifth pipe for connecting the compressor to the third pipe; a sixth pipe for connecting the second pipe to the heat storage heat exchanger; and a seventh pipe for connecting the heat storage heat exchanger to the fourth pipe to introduce a refrigerant from the heat storage heat exchanger to the fourth pipe, characterized in that in a defrosting operation for defrosting the outdoor heat exchanger, a refrigerant discharged from the compressor is introduced to the outdoor heat exchanger and to the heat storage heat exchanger via the indoor heat exchanger; and a refrigerant having passed through the outdoor heat exchanger and another refrigerant heat exchanged with the heat storage material in the heat storage heat exchanger join at a location between the four-way valve and a suction side of the compressor and are subsequently introduced to the suction side of the compressor, and the refrigeration cycle equipment further comprising an accumulator provided on the fourth pipe to separate a liquid phase refrigerant and a gas phase refrigerant, wherein the seventh pipe is connected to a pipe extending between the accumulator and the compressor. a heat storage material disposed around the compressor to store heat generated by the compressor; a heat storage heat exchanger operable to heat exchange with heat stored in the heat storage material; a first pipe for connecting the compressor to the indoor heat exchanger; a second pipe for connecting the indoor heat exchanger to the expansion valve; a third pipe for connecting the expansion valve to the outdoor heat exchanger; a fourth pipe for connecting the outdoor heat exchanger to the compressor; a fifth pipe for connecting the compressor to the third pipe; a sixth pipe for connecting the second pipe to the heat storage heat exchanger; and a seventh pipe for connecting the heat storage heat exchanger to the fourth pipe to introduce a refrigerant from the heat storage heat exchanger to the fourth pipe, characterized in that in a defrosting operation for defrosting the outdoor heat exchanger, a refrigerant discharged from the compressor is introduced to the outdoor heat exchanger and to the heat storage heat exchanger via the indoor heat exchanger; and a refrigerant having passed through the outdoor heat exchanger and another refrigerant heat exchanged with the heat storage material in the heat storage heat exchanger join at a location between the four-way valve and a suction side of the compressor and are subsequently introduced to the suction side of the compressor, and the refrigeration cycle equipment further comprising an accumulator provided on the fourth pipe to separate a liquid phase refrigerant and a gas phase refrigerant, wherein the seventh pipe is connected to a pipe extending between the accumulator and the compressor.