| 摘要 |
PURPOSE:To provide an installation structure of a vibration motor for the pocket beeper with vibration alarm effective to low power consumption and thin profile. CONSTITUTION:A vibration alarm motor of the pocket beeper having the vibration alarm motor is a flat 2-pole stator step motor whose rotor shaft is fixed directly with an eccentric weight and the vibration alarm motor is located at a range of an angle alpha from the gravity center of the eccentric weight at the stop of the rotor to a long ridge direction 205 of the pocket beeper along the eccentric weight along the rotation direction around the rotor shaft within 0-90 deg. or 180-270 deg.. |
