CENTRIFUGAL WEIGHT GUIDE STRUCTURE FOR CENTRIFUGAL SWITCH FOR SINGLE PHASE INDUCTION MOTOR

摘要

PURPOSE: A centrifugal weight guide structure is provided to prevent an abrasion of the guide and allow for a smooth operation of the centrifugal weight by forming a guide protrusion on a guide accommodating groove and a guide groove corresponding to the guide protrusion. CONSTITUTION: A centrifugal switch comprises a rotating shaft; a sleeve(120) coupled to the rotating shaft, and which has a pair of guides extended outward along the radial direction of the rotating shaft; a slider coupled to the sleeve, and which operates a starter switch; and a centrifugal weight having a side with a guide accommodating groove which slides along the guides and the other side coupled to the slider in such a manner that the slider slides along the axial direction of the rotating shaft with respect to the sleeve during rotation of the rotating shaft. The sleeve has a cylindrical portion(121) for accommodating the rotating shaft; a guide for slide guiding the centrifugal weight; and ribs protruded from both sides of the cylindrical portion. The guide has a guide support(124); a guide groove(125) formed along the lengthwise direction of the guide support; and a stopper(126) formed at an end of the guide support so as to restrict the position of the centrifugal weight.