An outdoor unit of an air-conditioning apparatus includes a heat exchange body including a plurality of flat tubes that extend in a vertical direction and that are arranged in a horizontal direction with gaps therebetween. A plurality of the heat exchange bodies are arranged in a direction of air flow to form a heat exchanger. A first header, into which hot gas refrigerant flows from a refrigerant circuit, is provided below one of the plurality of the heat exchange bodies that is at a most upwind position.

The present invention discloses an outdoor unit 100 for an air-conditioning apparatus, comprising: a bottom plate made of metal; a heat exchanger made of metal that is different from metal of the bottom plate, which includes a front surface portion, a corner portion and a side surface portion, and which is formed in an L-shape when viewed from; and an upper support which continuously covers the front surface portion, the corner portion and the side surface portion when viewed from above.

An air conditioner, including: a fan, an air blowing plane of the fan being an air blowing surface, the fan having a central axis, and the central axis being perpendicular to the air blowing surface; a separating plate configured to separate a compressor and a heat exchanger of the air conditioner; and an asymmetric heat exchanger, including a first side plate disposed comparatively far away from the separating plate and a second side plate disposed comparatively close to the separating plate.

An air conditioner, including: a fan, an air blowing plane of the fan being an air blowing surface, the fan having a central axis, and the central axis being perpendicular to the air blowing surface; a separating plate configured to separate a compressor and a heat exchanger of the air conditioner; and an asymmetric heat exchanger, including a first side plate disposed comparatively far away from the separating plate and a second side plate disposed comparatively close to the separating plate.

Provided is an outdoor unit of an air conditioner, including: an outdoor heat exchanger that has a height longer than a width; and an outdoor blowing fan that is disposed above the outdoor heat exchanger and blows air upward from below the outdoor heat exchanger, in which the outdoor heat exchanger includes: a plurality of radiating fins that contacts air; a gap that is formed between the radiating fins; a louver fin that is cut in the radiating fin and then bent; and a cut-out area that is formed in the radiating fin and formed at a position where the louver fin is cut, the radiating fin includes: a first zone that is disposed above the outdoor heat exchanger and disposed close to the outdoor blowing fan; and a second zone that is located below the first zone, and an area LA1 of the louver fin in the first zone is formed to be larger than an area LA2 of the louver fin in the second zone. The present disclosure has the advantage of uniformly forming air volumes in each zone of the heat exchanger in the vertical height direction by making the areas of the louver fins arranged in each zone different, even when the outdoor blowing fan is disposed to be biased upward.

Provided is an outdoor unit of an air conditioner, including: an outdoor heat exchanger that has a height longer than a width; and an outdoor blowing fan that is disposed above the outdoor heat exchanger and blows air upward from below the outdoor heat exchanger, in which the outdoor heat exchanger includes: a plurality of radiating fins that contacts air; a gap that is formed between the radiating fins; a louver fin that is cut in the radiating fin and then bent; and a cut-out area that is formed in the radiating fin and formed at a position where the louver fin is cut, the radiating fin includes: a first zone that is disposed above the outdoor heat exchanger and disposed close to the outdoor blowing fan; and a second zone that is located below the first zone, and an area LA1 of the louver fin in the first zone is formed to be larger than an area LA2 of the louver fin in the second zone. The present disclosure has the advantage of uniformly forming air volumes in each zone of the heat exchanger in the vertical height direction by making the areas of the louver fins arranged in each zone different, even when the outdoor blowing fan is disposed to be biased upward.

A heat exchanger includes: a header that extends in a horizontal direction; and heat transfer tubes that extends in a direction crossing the horizontal direction, that are disposed side by side in a longitudinal direction of the header, and that are connected to the header. The header includes a first space that causes a refrigerant to flow in a first direction along the longitudinal direction of the header, a second space that causes the refrigerant to flow in a second direction along the longitudinal direction of the header and opposite to the first direction, a circulation member extends in the longitudinal direction of the header and separates the first space from the second space, a first communication port, a second communication port, and an inflow port.

A heat exchanger includes: a header that extends in a horizontal direction; and heat transfer tubes that extends in a direction crossing the horizontal direction, that are disposed side by side in a longitudinal direction of the header, and that are connected to the header. The header includes a first space that causes a refrigerant to flow in a first direction along the longitudinal direction of the header, a second space that causes the refrigerant to flow in a second direction along the longitudinal direction of the header and opposite to the first direction, a circulation member extends in the longitudinal direction of the header and separates the first space from the second space, a first communication port, a second communication port, and an inflow port.

An outdoor unit of an air-conditioning apparatus includes a bell mouth that has a first tapered portion and a straight pipe portion. The first tapered portion has a linking portion that is continuous with a first bent portion and a second bent portion in a region located between the first and second bent portions and that has an inner surface extending linearly. The angle of inclination of the inner surface of the linking portion relative to a direction along an axis of the straight pipe portion is 33 degrees or more. The ratio of the sum of a first length of the first tapered portion and a second length of the straight pipe portion to the total length of the bell mouth is less than 0.76.

An outdoor unit of an air-conditioning apparatus includes a bell mouth that has a first tapered portion and a straight pipe portion. The first tapered portion has a linking portion that is continuous with a first bent portion and a second bent portion in a region located between the first and second bent portions and that has an inner surface extending linearly. The angle of inclination of the inner surface of the linking portion relative to a direction along an axis of the straight pipe portion is 33 degrees or more. The ratio of the sum of a first length of the first tapered portion and a second length of the straight pipe portion to the total length of the bell mouth is less than 0.76.