Refrigeration cycle device

A refrigeration cycle device comprising:

• a compressor configured to draw and discharge a refrigerant;
• a first heat exchanger configured to exchange heat between the refrigerant discharged from the compressor and a heat medium;
• a decompression valve configured to decompress the refrigerant flowing out of the high-temperature side heat exchanger;
• a second heat exchanger configured to exchange heat between the refrigerant decompressed by the decompression valve and the heat medium;
• a high-temperature side heat medium circuit in which the heat medium circulates to the high-temperature side heat exchanger;
• a low-temperature side heat medium circuit in which the heat medium circulates to the low-temperature side heat exchanger;
• a third heat exchanger located in the low-temperature side heat medium circuit to exchange heat between the heat medium in the low-temperature side heat medium circuit and outside air;
• a fourth heat exchanger configured to exchange heat between the heat medium in the high-temperature side heat medium circuit and the outside air;
• and
• a coupling member made of a metal and coupled to the third heat exchanger and the fourth heat exchanger, to transfer heat from the fourth heat exchanger to the third heat exchanger.