The fan head is mainly composed of single-phase AC motor, head shaking mechanism and front and rear end cover.electric motor. Most of the motors used in electric fans use capacitive single-phase AC asynchronous motors, mainly composed of stator, rotor, bearing, end cover, etc.as shown in the figure.
Stators include the stator core and the stator winding. The rotor is the rotating part of the motor, and the working torque of the motor is output from the rotor. The rotor of the single-phase capacitive motor consists of three parts of the rotor core, the rotor winding and the rotation axis.
oscillating mechanism. The head shaking movement of ordinary electric fan fan is driven by electric motor. The swing Angle of the fan head, the national standard stipulates: the fan blade diameter of 250mm is not less than 600,300mm is not more than 800, the head mechanism is composed of deceleration mechanism, four link mechanism and control mechanism three parts.
Fan blade (also known as fan blade) consists of blade, leaf frame and leaf cover. Fan blade through the appropriate device Angle and radian of the blade, so that the blade rotates when producing a certain pressure on the air, forming an air flow. Fan blade is an important part of the electric fan, its size and shape have a great influence on the wind speed, air volume, power consumption, noise and vibration performance of the electric fan.
The main function of electric fan net cover is to ensure safety, prevent the human body to touch fan leaf accident, play certain decoration beautiful effect next. The general net cover is divided into before and after two parts. Control part-its control and operation devices of the platform fan are mostly installed on the panel of the base, such as the speed control switch, the timing switch, etc.
