Vibration motor

A vibration motor, comprising:

• a substrate;
• a housing engaged with the substrate for forming an enclosure;
• a first magnet assembly including a first weight and a first magnet assembled with the first weight;
• a second magnet assembly fixed with the first magnet assembly, the second magnet assembly including a second weight engaging with the first weight of the first magnet assembly and a second magnet assembled with the second weight;
• an elastic member including a first fixing part connecting to the housing, and a second fixing part connecting to the second weight for suspending the second magnet assembly with the first magnet assembly in the housing;
• a coil assembly including a coil located between the first magnet assembly and the second magnet assembly, and a coil support with a frame shape carrying the coil, the coil support including a lower part mounted on the substrate, an upper part for carrying the coil, and a middle part spacing the upper part from the lower part, wherein
• the first weight includes a pair of sidewalls and a pair of opposed engagement parts connecting with the sidewalls, the first weight further including avoidances recessing from the sidewalls and corresponding to the middle part for preventing the first magnet assembly interfering with the middle part during vibration, both sides of each engagement part having one avoidance.