MOTOR APPARATUS AND CLEANER HAVING THE SAME

摘要

A motor apparatus having a high efficiency and reducing manufacturing cost by using a cost effective ferrite permanent magnet includes a rotatable shaft, a fan connected to one side of the shaft to generate a flow of air, a stator including stator cores arranged in a circumferential direction, and a coil wound around the stator core, and a rotor disposed at an inside of the stator and provided in a form of a cylinder having a passage allowing the shaft to pass through the rotor includes a rotor core provided with a protrusion structure and one or more ferrite magnets coupled to the rotor core to provide a magnetic force. By using a ferrite magnet, when compared to a conventional universal motor, a superior efficiency is obtained, and when compared to a BLDC motor using a Nd magnet, a low cost BLDC motor is implemented.

主权项

1. A motor apparatus, comprising:
a shaft rotatably installed; a fan connected to one side of the shaft to generate a flow of air: a stator including one or more stator cores arranged in a circumferential direction, and a coil wound around the one or more stator cores; and a rotor disposed at an inside of the stator and provided in a form of a cylinder having a passage at a main axis thereof allowing the shaft to pass therethrough, wherein the rotor comprises a rotor core provided with a protrusion structure and one or more ferrite magnets coupled to the rotor core to provide a magnetic force.