Patent ID: 7084535
Filing Date: 2006-08-01
Classification: H02K,Y10T

Abstract:
1. A vibrator in a portable electronic device, wherein the vibrator comprises: a motor, wherein the motor has a motor shaft, and the motor shaft has an axis; an eccentric weight fixed to the motor shaft, wherein the center of gravity of the weight is offset from the axis in a radial direction, and the eccentric weight is located on a first side of the motor shaft; and a deflection limiting member fixed to the motor shaft, wherein the deflection limiting member extends from the motor shaft on a second side of the motor shaft, which is opposite to the first side of the motor shaft, wherein, if deflection of the motor shaft exceeds a predetermined value, the deflection limiting member contacts a fixed surface of the portable electronic device and limits further deflection of the motor shaft; wherein the fixed surface is a circuit board that supports the motor and is positioned below the deflection limiting member.