Air duct assembly and duct type air conditioner

The utility model relates to the technical field of duct type air conditioners, and provides an air duct assembly and a duct type air conditioner, the air duct assembly comprises an air duct framework, the air duct framework is provided with an accommodating cavity for accommodating a cross-flow fan wind wheel and an accommodating chamber for accommodating a cross-flow fan motor, one end, far away from the accommodating chamber, of the accommodating cavity is provided with a first cover plate, and a second cover plate is arranged between the accommodating cavity and the accommodating chamber; the first cover plate and the second cover plate are arranged at the two ends of the cross-flow fan wind wheel in a covering mode. The containing chamber comprises a base and a gland which are detachably connected, the second cover plate is of a split structure and comprises a first cover body and a second cover body, the first cover body is connected between the containing cavity and the base, and the second cover body