ROTOR, MOTOR HAVING THE SAME AND FABRICATING METHOD OF THE ROTOR

摘要

Disclosed are a rotor which can use a metal mold for forming a rotor for a long time, a motor having the same, and a manufacturing method of the rotor. According to the present invention, the rotor, the motor having the same, and the manufacturing method of the rotor insert a molten metal into a metal mold when forming an end-ring including a metal bar in a rotor core, and rotate the rotor core with the metal mold together. Accordingly, the molten metal can be easily inserted into first and second slots of the rotor core by a centrifugal force. Therefore, the pressure of the molten metal inserted into the metal mold can be reduced, thereby increasing durability of the metal mold.