Double resonance vibration motor

摘要

A double resonance vibration motor includes a housing, vibration parts in the housing, a coil fixed in the housing, and elastic connectors to support elastically the vibration part. The vibration parts include a mass block, a first magnet group and a second magnet group installed in the mass block. The coil is opposite to the first magnetic group and the second magnetic group. The driving force generated by the first magnetic group and the coil makes the vibration motor vibrate along the first direction. The driving force of the second magnet group and the coil makes the vibration motor vibrate along the second direction. The first direction and the second direction are intersected. Two different directions have respectively one resonance frequency. Two different resonant frequencies can vibrate alone or at the same time, to realize the control in different vibration directions.

主权项

1. A double resonance vibration motor, including:
a housing having a first side wall and a second side wall opposite to the first side wall; a vibration part installed in the housing, the vibration part including a mass block, a first magnet group, and a second magnet group installed in the mass block, the mass block further including a first side panel near the first side wall and a second side panel wall near the second side wall. a coil fixed in the housing and opposed to the first magnetic group and the second magnetic group; a plurality of elastic connectors for suspending the vibration part; wherein a driving force generated by the first magnetic group and the coil makes the vibration motor vibrate along a first direction; a driving force generated by the second magnet group and the coil makes the vibration motor vibrate along a second direction different from the first direction.