(1) The structure of the cross-flow fan assembly
The air conditioner cross-flow fan assembly is mainly used to realize the forced circulation of indoor air and convection, so that the indoor air can exchange heat. It is usually located under the evaporator of the air conditioner, lying horizontally in the indoor unit. Cross-flow fan assembly-generally includes two parts: cross-flow fan blades and cross-flow fan drive motor. At present, most indoor units of air conditioners use forced ventilation and convection for heat exchange. Therefore, the fan assembly of indoor units is mainly to accelerate air.的流。 The flow.
The basic composition of the cross-flow fan assembly (split wall
(2) Function of cross flow fan assembly
Shown are the functional characteristics of the cross-flow fan assembly of the split wall-mounted air conditioner. After the cross-flow fan drive motor is energized and operated, it drives the fan blades of the cross-flow fan to rotate, so that the indoor air is forced to convection. At this time, indoor air enters from the air inlet of the indoor unit and passes through the evaporator to cool down. After dehumidification, driven by the cross-flow fan blades, it will be discharged from the air outlet of the indoor unit along the wind deflector. The wind deflector drive motor controls the angle of the wind deflector (the wind deflector assembly will be introduced in the next section).
(3) Working process of cross flow fan assembly
Shown is the signal flow block diagram of the indoor fan assembly of the air conditioner. After the microprocessor of the indoor unit of the air conditioner receives the remote control signal, it starts the air conditioner and starts to run. At the same time, the zero-crossing detection circuit sends the reference signal into the microprocessor. The microprocessor sends the drive signal to the drive circuit of the indoor fan drive motor. The drive circuit controls the operation of the cross flow fan. After the fan drive motor runs, the Hall element sends the detected feedback signal (wind speed detection signal) through the wind speed detection circuit. In the microprocessor, the microprocessor controls and adjusts the speed of the fan.