| 摘要 |
A hair dryer provides a multi-stage air current feed device to accelerate the flow velocity of the air current in the hair dryer such that the motor and the fans may generate least noise while the hair dryer is in operation. In addition to multiple stages of the air current feed device, a further added acceleration can be performed by way of applying the Bernoulli's law and the Venturi. Furthermore, a conventional hair dryer also can reduce the noise thereof without lower down the original high flow velocity and the flow rate thereof by way of applying the Bernoulli's law and the Venturi.
|
