Air handling unit

The invention discloses an air handling unit, which relates to the technical field of air conditioning equipment and comprises a box body, a partition plate, a fan assembly and an electric control assembly. An opening is formed in the wall surface of the box body; the partition plate is installed in an inner cavity of the box body and divides the box body into an upper cavity and a lower cavity, and the upper cavity and the lower cavity are both communicated with the opening. The fan assembly is detachably mounted in the lower cavity and can be moved out of the box body from the opening; the electric control assembly comprises an electric control box and a radiator connected with the electric control box, the radiator is at least partially located in the lower cavity, and the electric control box is at least partially located in the upper cavity; the electric control assembly is arranged in the inner cavity and can be separated from the box body from the opening. The radiator of the electric control assembly is at least partially located in the lower cavity and can dissipate heat through a wind field of the fan assembly, and effective heat dissipation is achieved; most of the structure of the electric control box is located in the upper cavity, and the upper cavity forms a cavity body which is sealed and isolated relative to the lower cavity, thereby effectively preventing the electrical elements from being damaged by water vapor and dust, and prolonging the service life of the electrical elements.