| 摘要 |
PURPOSE: A rotor for embedded permanent magnet BLDC(brushless direct current) motor is provided to readily cool heat of a motor without increase of material cost. CONSTITUTION: A rotor for embedded permanent magnet BLDC motor comprises many laminated cores(1), four permanent magnets(2), and end rings(10). The laminated cores(1) is stacked in a direction of a shaft to form a cylinder. The four permanent magnets(2) are inserted through the laminated cores(1) and fixed by molding with resin. Each of the end rings(10) has air flow generating units(11) for cooling the motor. The outer surface of the end rings(10) are smoothly formed. The air flow generating units(11) are formed by resin and flows the air and reduces vibration due to fast rotating speed of a stator at both ends of the laminated cores(1).
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