| abstract |
Provided is an air conditioner (1) including a printed circuit board (31) and a refrigerant jacket (20). A power element (33) is attached to the printed circuit board (31). The power element (33) is thermally connected to the refrigerant jacket (20), and a refrigerant flows through the inside of the refrigerant jacket (20). The power element (33) is cooled by the refrigerant flowing through the refrigerant jacket (20). The refrigerant is a mixed refrigerant containing at least 1,2-Difluoroethylene. |