| 摘要 |
<p>PURPOSE: A motor for a damper including an overcharge preventing circuit is provided to construct an opening/closing driver connected to a blade of a damper and a forward/reverse motor using a magnetic coupler and a hall sensor to protect components from charging delay. CONSTITUTION: A motor for a damper comprises a transformer(31), a bridge diode(32), an electrolysis condenser(33), a transistor(34), a relay(35), a rectifier circuit(36), a charging condenser(37), and an opening/closing driver(100). The opening/closing driver comprises a magnetic coupling(110), an opening hall sensor(120), and a closing hall sensor(130). The magnetic coupling rotates the forward/reverse motor forward when power is applied as the relay is driven and transfer current charged in the condenser to rotate the forward/reverse motor reversely when power supply is cut so as to open/close a blade of the damper. The opening hall sensor and the closing hall sensor are located opposite to each other on a circuit board corresponding to the magnetic coupling and rotated by the relay.</p> |
