US Patent 10447131 Linear vibration motor

A linear vibration motor includes a vibration unit including a first side wall and a second side wall; a housing with an accommodation space for accommodating the vibration unit; a stator unit accommodated in the accommodation space; an elastic piece suspending the vibration unit in the accommodation space. The elastic piece includes a first elastic member and a second elastic member, each of the first and second elastic members including a first spring arm and a second spring arm overlapped across each other. Both the first elastic member and the second elastic member have a connection piece abutting against the vibration unit.