Multi-directional vibration motor with peripheral magnetic ring made from magnets surrounding coil unit

A multi-directional vibration motor, comprising a housing having a receiving space, a vibration unit received in the receiving space, a coil unit fixed to the housing to drive the vibration unit to vibrate, and a peripheral magnetic ring fixed to the housing and in a shape of a ring,

• wherein the vibration unit comprises a magnet unit interacting with the coil unit to provide a driving force, the magnet unit is in a shape of a cylinder, and the magnet unit is magnetized along a first direction parallel to an axial direction of the magnet unit;
• wherein the coil unit is located in the housing and is arranged directly opposite to the magnet unit;
• wherein the peripheral magnetic ring surrounds the coil unit and is spaced apart from the coil unit, a magnetic pole at an inner side of the peripheral magnetic ring is the same as a magnetic pole at a side of the magnet unit adjacent thereto, so as to generate a damping force that hinders motion of the vibration unit;
• and
• wherein the peripheral magnetic ring is formed by magnets that are symmetrical in pairs, the peripheral magnetic ring comprises two first magnetic ring portions respectively arranged at two opposite sides of the coil unit along a second direction and two second magnetic ring portions respectively arranged at two opposite sides of the coil unit along a third direction, and both the second direction and the third direction are distributed in a same plane and perpendicular to the first direction.