Patent ID: 8698366
Filing Date: 2014-04-15
Classification: B06B,H02K

Abstract:
1. A flat type vibration motor, comprising: a cover case having a burring part to provide an inner end and a tubular part to provide an outer end; a stator structure provided at the outer end; a shaft having a first end and a second end, the first end being fitted in the burring part, the second end being supported by the stator structure; a rotor frame provided in an area surrounded by the cover case and the stator structure, the rotor frame having an upper surface and a lower surface, the rotor frame having a rivet hole passing through the upper surface and the lower surface, a slide bearing having a though hole, the shaft slidably passing through the through hole, the rotor frame provided on an outside of the slide bearing, an axial direction field-type rotary magnet provided on the lower surface, an eccentric weight provided on the upper surface, wherein the eccentric weight is a monolithic member comprising: