AIR CONDITIONER INDOOR UNIT AND AIR CONDITIONER

The present application belongs to the technical field of household appliances, and particularly relates to an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a casing and an air duct assembly arranged in the casing, an air outlet being formed in the casing. In a first direction, the air duct assembly comprises a first side wall and a second side wall which are oppositely arranged, an air duct being formed between the first side wall and the second side wall. The casing comprises a first panel and a second panel which are located on the two sides of the air outlet respectively. The first side wall comprises a first main body section and a first bent section, the first bent section being connected to the end of the first main body section close to the air outlet, and the first bent section being bent towards the direction facing away from the air duct. The second side wall comprises a second main body section and a second bent section, the second bent section being