Outdoor unit

An outdoor unit comprising:

• a housing;
• a compressor placed in the housing;
• a heat exchanger placed in the housing;
• a blower placed in the housing, the blower admitting air from outside the housing and passing the air through the heat exchanger;
• a partition plate partitioning the housing into a compressor chamber and a blower chamber, the compressor being placed in the compressor chamber, the blower being placed in the blower chamber;
• a board on which an electronic component is mounted, the electronic component driving the compressor;
• a heat dissipator placed in the blower chamber and adjacent to the partition plate, the heat dissipator including a base and a plurality of fins, the base having a fin formation surface, the fins projecting from the fin formation surface, the heat dissipator dissipating heat of the electronic component;
• and
• a duct covering a tip side of the fins in the heat dissipator to form a flow path, the air passing through the flow path, wherein
• when the fins are viewed from the fin formation surface side, the fins extend toward the blower side from the partition plate side, wherein
• the duct has a facing surface facing the fin formation surface,
• a distance between the facing surface and the fin formation surface is greater in a region on the partition plate side than in a region on the blower side, and
• an outlet is formed on the blower side of the duct, the outlet allowing the air to flow out from the flow path.