In a refrigeration apparatus, a main surface of a printed wiring board (90) has a heavy electric region (R1), which is a region in the lower part of the printed wiring board where a heavy electric component group is disposed, and a light electric region (R2), which is a region positioned above the heavy electric region, where a light electric component group is disposed. A refrigerant jacket (40) contacts a power device (20) which is disposed in the heavy electric region. A liquid pipe of the refrigerant pipe (10) includes a portion that extends upwards towards the refrigerant jacket, and a cooling portion (10A) contacts the refrigerant jacket.