Heat Exchanger

A heat exchanger, comprising:

• a first heat exchange portion, wherein the first heat exchange portion comprises a plurality of first flat tubes disposed at intervals, each of the plurality of first flat tubes comprises a first heat exchange tube section and a second heat exchange tube section connected with each other, and the first heat exchange tube section and the second heat exchange tube section are disposed at a preset angle;
• or the first heat exchange portion comprises a first heat exchange assembly and a second heat exchange assembly connected with each other, the first heat exchange assembly comprises a plurality of first heat exchange flat tubes disposed at intervals in a first preset direction, the second heat exchange assembly comprises a plurality of second heat exchange flat tubes disposed at intervals in a second preset direction, and the first preset direction is disposed at a preset angle to the second preset direction;
• a first manifold and a second manifold, wherein first heat exchange tube sections of the plurality of first flat tubes are all connected with the first manifold, and second heat exchange tube sections of the plurality of first flat tubes are connected with the second manifold;
• or the plurality of first heat exchange flat tubes are all connected with the first manifold, and the plurality of second heat exchange flat tubes are all connected with the second manifold;
• and
• a second heat exchange portion disposed at an end portion of the first heat exchange portion, the first heat exchange portion and the second heat exchange portion enclosing to form an air duct.