Heat exchanger and refrigeration cycle apparatus

A heat exchanger, comprising:

• a plurality of heat transfer parts arranged in a first direction and spaced apart from each other, the plurality of heat transfer parts extending in a second direction and allowing refrigerant to flow through inside the plurality of heat transfer parts;
• a first header extending in the first direction and connected to one end of each of the plurality of heat transfer parts;
• a second header extending in the first direction and connected to an other end of each of the plurality of heat transfer parts;
• and
• a support extending along the first direction and the second direction and having a frame that forms an outer periphery of the support, a partition that divides an area enclosed by the frame, and an opening,
• the support being formed into meshes by assembling the frame and the partition and located at at least one face of the plurality of heat transfer parts in a third direction that is perpendicular to the first direction and the second direction, the support being fixed to the first header and the second header.