| 摘要 |
The electric fan for varing the wind direction selectively or continuously even when the fan is rotated includes an input power switch switching the polarity of the DC power, a fixed supporting plate (50) supporting a motor driver with at least 3 screw, a transfer screw (55) rotating forward or backward according to the forward/reverse rotation of the motor driver, a shifter (54) coming close to a main motor (34) when the transfer screw rotates with reverse direction or vice versa, a guide plate (63) linked to the shifter with a bearing, a transfer fin (67) fixed on the guide plate, and a selection fin (73) for fan direction varying the position of rotation fan.
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