A music fan based on swing blade wind change and its control method. The music fan includes a
power unit, a support unit, a humidification unit, a swing blade drive unit and a
control unit; the
power unit includes two fans, and the
power unit is located in the casing; the support The unit includes a support structure and a shell; the
moisture of the humidification unit is introduced into the shell through the
moisture air inlet; the swing leaf drive unit includes: a front beam, a rear beam, a
stepper linear screw motor, two optical axes, eight screws, Six swing axes, six fasteners, six rotating shafts, screw nuts, partitions, six connecting pieces, and six swing leaves; the present invention uses an open-
loop control linear screw motor that converts electrical pulse signals into
linear displacement. . Under non-overload conditions, the motor's speed and stopping position only depend on the frequency and number of pulses of the pulse
signal, and are not affected by load changes. The
angular displacement is controlled by controlling the number of pulses to achieve accurate positioning. .