Flat Linear Vibration Motor

摘要

A flat linear vibration motor is disclosed. The flat linear vibration motor includes a housing having an accommodation space; a first magnet received in the accommodation space and fixed in the housing; and a vibrator unit suspended in the housing. The vibrator unit includes a clump weight, a third magnet, a driving magnet, and a fourth magnet; a second magnet fixed in the housing, the first magnet, the vibrator unit and the second magnet arranged one by one along a vibration direction of the vibrator unit; engaging assemblies suspending the vibrator unit inside the housing and driving the vibrator unit to move along the vibration direction; wherein the flat linear vibration motor further includes a ring driving coil received in the accommodation space, the ring driving coil being spaced from and surrounding the driving magnet.

主权项

1. A flat linear vibration motor, including:
a housing having an accommodation space; a first magnet received in the accommodation space and fixed in the housing; a vibrator unit suspended in the housing, the vibrator unit including a clump weight, a third magnet, a driving magnet, and a fourth magnet, the third magnet being such configured that a magnetic pole thereof is opposite to an adjacent magnetic pole of the first magnet; a second magnet fixed in the housing, the first magnet, the vibrator unit and the second magnet arranged one by one along a vibration direction of the vibrator unit; the second magnet being such configured that a magnetic pole thereof is opposite to an adjacent magnetic pole of the fourth magnet; engaging assemblies suspending the vibrator unit inside the housing and driving the vibrator unit to move along the vibration direction, the engaging assemblies including guide groove parts having magnetic guide grooves, and guide rail parts having magnetic guide rails which are at least partially wrapped by the magnetic guide grooves, same magnetic poles of the magnetic guide rails and the magnetic guide grooves being configured to face to face for suspending the magnetic guide rails in the magnetic guide grooves; and a driving coil received in the accommodation space, the driving coil being spaced from and surrounding the driving magnet.