| 摘要 |
<p>PURPOSE: An electric damper which is opened and closed by the one-way rotation of a stopper is provided to open a stopper by driving a motor when external power is supplied, and at the same time, charge super condensers. CONSTITUTION: An electric damper which is opened and closed by the one-way rotation of a stopper comprises an electric pressure dropping unit, a rectifier (D1), super condensers (C3,C4), a motor (J2), a coupling, switches (SW1, SW2), and a stopper. The electric pressure dropping unit drops voltage by being provided with AC power supply. The rectifier rectifies the AC power supply where the voltage is dropped. The super condensers charge DC power supply outputted through the rectifier. The motor rotates a motor axis by the DC power supply or DC power supply outputted through the super condensers. The coupling is connected to the motor axis and rotates. The coupling has a wing. The switches supply the DC power supply or the DC power supply outputted from the super condensers to the motor. The stopper opens and closes the space inside a ventilation duct connecting part.</p> |
