This invention provides an
indoor air conditioning unit, an air conditioner, and an
air conditioning control method. The
indoor air conditioning unit includes: a first
volute, a portion of which is movably disposed; when the first
volute is in a connected state, it has a first
volute tongue structure for forming an upper air duct; when the first volute is in a
separated state, it does not have a volute
tongue structure; a second volute, a portion of which is movably disposed; when the second volute is in a connected state, it has a second volute
tongue structure for forming a lower air duct; when the second volute is in a
separated state, it does not have a volute tongue structure; when the first volute is in a connected state and the second volute is in a
separated state, the upper air duct is used as an air outlet duct and the lower air duct is used as an air inlet duct; when the second volute is in a connected state and the first volute is in a separated state, the lower air duct is used as an air outlet duct and the upper air duct is used as an air inlet duct.