Refrigeration cycle apparatus

A refrigeration cycle apparatus comprising:

• a refrigerant circuit in which at least a compressor, a condenser, a first pressure reducer, and an evaporator are connected by pipes,
• wherein the condenser includes
• a plurality of heat transfer tubes cooling refrigerant by air, each of the plurality of heat transfer tubes extending in an up-and-down direction and through which the refrigerant flows, and the plurality of heat transfer tubes being arranged in a lateral direction perpendicular to the up-and-down direction, with a gap for the air to flow between adjacent heat transfer tubes;
• a first header having a tubular outer wall which extends in the lateral direction and into which first ends of the plurality of heat transfer tubes are inserted;
• and
• a partition plate that is provided from a first end to a second end of the first header in a longitudinal direction, partitions an internal space of the first header into a high-pressure refrigerant passage where the first ends of the plurality of heat transfer tubes are disposed and a low-pressure refrigerant passage where the first ends of the plurality of heat transfer tubes are not disposed, and is configured to exchange heat between high-pressure refrigerant flowing through the high-pressure refrigerant passage and low- pressure refrigerant flowing through the low-pressure refrigerant passage in the first header,
• wherein the partition plate comprises at least one tubular portion extending in the longitudinal direction of the first header, and
• wherein the partition plate has a plurality of holes through which a space where the first ends of the plurality of heat transfer tubes are disposed communicates with an internal space of the tubular portion.

A refrigeration cycle apparatus comprising:

• a refrigerant circuit in which at least a compressor, a condenser, a first pressure reducer, and an evaporator are connected by pipes,
• wherein the condenser includes
• a plurality of heat transfer tubes cooling refrigerant by air, each of the plurality of heat transfer tubes extending in an up-and-down direction and through which the refrigerant flows, and the plurality of heat transfer tubes being arranged in a lateral direction perpendicular to the up-and-down direction, with a gap for the air to flow between adjacent heat transfer tubes:
• a first header having a tubular outer wall which extends in the lateral direction and into which first ends of the plurality of heat transfer tubes are inserted;
• a partition plate that is provided from a first end to a second end of the first header in a longitudinal direction, partitions an internal space of the first header into a high-pressure refrigerant passage where the first ends of the plurality of heat transfer tubes are disposed and a low-pressure refrigerant passage where the first ends of the plurality of heat transfer tubes are not disposed, and is configured to exchange heat between high-pressure refrigerant flowing through the high-pressure refrigerant passage and low-pressure refrigerant flowing through the low-pressure refrigerant passage in the first header:
• a tubular second header extending in the lateral direction and into which second ends of the plurality of heat transfer tubes are inserted;
• and
• a partition plate that is provided from a first end to a second end of the second header in a longitudinal direction, partitions an internal space of the second header into a high-pressure refrigerant passage where the second ends of the plurality of heat transfer tubes are disposed and a low-pressure refrigerant passage farther away from the plurality of heat transfer tubes than is the high-pressure refrigerant passage, and is configured to exchange heat between high-pressure refrigerant flowing through the high-pressure refrigerant passage and low-pressure refrigerant flowing through the low-pressure refrigerant passage in the second header.