Patent ID: 9369025
Filing Date: 2016-06-14
CPC Classification: H02K

Claim Text:
1. A vibration motor comprising: a core including a plurality of radially disposed arms and a plurality of tooth portions, each tooth portion being provided at an end portion of the corresponding arm; an insulator that is disposed on a surface of the core, the insulator being formed of an electrical insulating material, a coil being wound around the insulator disposed on the arms; and a weight that is disposed in a core slot provided between adjacent arms of the plurality of arms, wherein the weight includes a body and extension portions, the body being inserted in the core slot, the extension portions being provided at an end portion of the body and being disposed on the corresponding tooth portions at the adjacent arms, and wherein the insulator includes protrusions that are positioned radially inward from the extension portions and that restrict radial movement of the extension portions.