A cross flow fan blade includes an inner edge disposed on an inner circumferential side of a cross flow fan, an outer edge disposed on an outer circumferential side of the cross flow fan, and a base part formed between the inner edge and the outer edge. The base part has a pressure face and a negative pressure face. A thickness of the inner edge is larger than 1.5 times a thickness of the outer edge. An interval between the pressure face and the negative pressure face in a direction perpendicular to the pressure face is a thickness of the base part. A maximum thickness position of the base part is closer to the inner edge than to the outer edge. When a blade chord length is L and a maximum thickness of the base part is tmax, tmax/L≤0.094, and a range of tmax/L≤0.08 is excluded.

A humidifier including a humidifier housing with an adjustable backplane configured to fit to a variety of humidifier pad sizes. Different sizes of humidifier pads are available, and the choice of humidifier pad may depend on the capacity of the HVAC system. The backplane of this disclosure may be adjusted by moving to one position to accommodate a larger humidifier pad or to a second position for a smaller humidifier pad. The backplane of the humidifier housing is configured to mount over an opening of an air duct of an HVAC system such that air is directed along an air path defined by the humidifier housing, through the humidifier pad positioned in front of the air duct and into the air stream of the HVAC system. Water flows through inlet tubing to a water distributor, which may direct the water to the top of the humidifier pad.

Method and apparatus are disclosed for filter racks for blower coil units. An example filter rack for a blower coil unit includes a frame. The frame includes a rear frame structure, a front frame structure coupled to and spaced apart from the rear frame structure to define a slot that is configured to house a filter for filtering air flowing from a blow coil unit, and a side extending between the front frame structure and the rear frame structure. The side defines a first opening to the slot to enable the filter to be inserted into and removed from the slot. The example filter rack also includes a magnet fixed along the side and a panel configured to couple to the side via the magnet. The panel securely encloses the filter within the slot when coupled to the side and provides access to the slot when decoupled from the side.

Method and apparatus are disclosed for filter racks for blower coil units. An example filter rack for a blower coil unit includes a frame. The frame includes a rear frame structure, a front frame structure coupled to and spaced apart from the rear frame structure to define a slot that is configured to house a filter for filtering air flowing from a blow coil unit, and a side extending between the front frame structure and the rear frame structure. The side defines a first opening to the slot to enable the filter to be inserted into and removed from the slot. The example filter rack also includes a magnet fixed along the side and a panel configured to couple to the side via the magnet. The panel securely encloses the filter within the slot when coupled to the side and provides access to the slot when decoupled from the side.

An air conditioner indoor unit includes an electric control box, a cleaner device, and an electrical wire. The cleaner device includes a filter screen rail assembly and a cleaning assembly configured to drive a filter screen to move on the filter screen rail assembly to clean the filter screen. The cleaning assembly includes an electrical wire connection end. The electrical wire is arranged at the cleaning assembly and the filter screen rail assembly. One end of the electrical wire is connected to the electrical wire connection end, and another end of the electrical wire is connected to the electric control box.

An air conditioner indoor unit includes an electric control box, a cleaner device, and an electrical wire. The cleaner device includes a filter screen rail assembly and a cleaning assembly configured to drive a filter screen to move on the filter screen rail assembly to clean the filter screen. The cleaning assembly includes an electrical wire connection end. The electrical wire is arranged at the cleaning assembly and the filter screen rail assembly. One end of the electrical wire is connected to the electrical wire connection end, and another end of the electrical wire is connected to the electric control box.

Disclosed herein is an air conditioner. The air conditioner includes a housing having an inlet and an outlet, and having a first guide surface forming the outlet and a second guide surface facing the first guide surface provided therein, a heat exchanger configured to heat-exchange air suctioned through the inlet, a blower fan configured to suction air from the inlet, heat-exchange the air by passing air through the heat exchanger, and discharge air toward the outlet, and an airflow control unit provided to be movable between a first position adjacent to one end portion of the outlet from which air is discharged and a second position spaced apart from the end portion of the outlet from which air is discharged, and protruding from the first guide surface or the second guide surface when the airflow control unit placed at the first position.

Disclosed herein is an air conditioner. The air conditioner includes a housing having an inlet and an outlet, and having a first guide surface forming the outlet and a second guide surface facing the first guide surface provided therein, a heat exchanger configured to heat-exchange air suctioned through the inlet, a blower fan configured to suction air from the inlet, heat-exchange the air by passing air through the heat exchanger, and discharge air toward the outlet, and an airflow control unit provided to be movable between a first position adjacent to one end portion of the outlet from which air is discharged and a second position spaced apart from the end portion of the outlet from which air is discharged, and protruding from the first guide surface or the second guide surface when the airflow control unit placed at the first position.

The present disclosure provides an air processing module and an air conditioner. The air processing module includes a housing and an air processing assembly. The housing includes a base plate and a coaming formed by a periphery of the base plate extending upwardly, the coaming comprises an air inlet. The air processing assembly is mounted in the housing. The air processing assembly includes a filter canister, a support plate, and a mounting board, the filter canister is detachably mounted to the support plate, the support plate is rotatably mounted to the mounting board, the mounting board is slidably mounted in the housing along the inside and the outside of the air inlet.

The present disclosure provides an air processing module and an air conditioner. The air processing module includes a housing and an air processing assembly. The housing includes a base plate and a coaming formed by a periphery of the base plate extending upwardly, the coaming comprises an air inlet. The air processing assembly is mounted in the housing. The air processing assembly includes a filter canister, a support plate, and a mounting board, the filter canister is detachably mounted to the support plate, the support plate is rotatably mounted to the mounting board, the mounting board is slidably mounted in the housing along the inside and the outside of the air inlet.