Motor with rotational balancing structure

摘要

A motor includes an axial tube mounted in a stator, a rotor, a balancing magnet, and a magnetically conductive member. The rotor includes an axial base formed on an inner face thereof and a shaft extending from the axial base through a bearing received in the axial tube. The balancing magnet is mounted to the upper end of the axial tube. The magnetically conductive member is mounted to a bottom end of the shaft base of the rotor. At least one face of the balancing magnet faces and attracts at least one face of the magnetically conductive member to maintain rotational balance and starting balance of the rotor. The magnetically conductive member may be replaced with a magnetically conductive portion integrally formed with the shaft.