DC BRUSHLESS MOTOR FOR AIR CONDITIONER

摘要

PURPOSE: To make the level of a switching noise small and to generate the sound of the switching noise by setting the generating frequency of the switching noise at the high frequency with no incompatibility sense, in actual listening. CONSTITUTION: The shape of a rotor magnet 11 is formed so that the air gap with a stator 3 is minimum at the central part and maximum at the tip. Furthermore, ribs 14 in the radial direction are provided in an iron-plate bracket 9.