| 摘要 |
PURPOSE: A structure of a rotator for a brushless motor is provided to simplify a manufacturing process and to enhance the productivity by fixedly combining a rotational core with a permanent magnet. CONSTITUTION: The rotator for brushless motor comprises a rotational shaft(201) and rotational cores(202) mounted around the rotational shaft(201). A plurality of locking grooves are formed at outer periphery of the rotational cores(202). These locking grooves are spaced apart from each other at an angle of 90°. Four permanent magnets(204) are disposed between the locking grooves at the outer periphery of the rotational cores(202). The permanent magnets(204) have opposite polarity with each other. A pair of rings(205) are fitted onto both ends of the permanent magnets(204) so that the permanent magnets(204) are closely adhered to the rotational cores(202). Locking pieces(206) are formed at an inner periphery surface of the rings(205).
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