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

摘要

PURPOSE: A centrifugal weight restoration guide structure is provided to allow for a smooth operation of the centrifugal switch by permitting the centrifugal weight to be smoothly restored to the center portion of the centrifugal weight accommodating groove of the slider. CONSTITUTION: A slider(130) comprises a cylindrical body(131) which rotates together with a sleeve coupled to a rotating shaft, and has a rib accommodating groove formed along the lengthwise direction of the inner surface of the body; a collar(132) arranged at an end of the body; and centrifugal weight accommodating grooves(134) formed at both sides of the outer surface of the body such that an end of a centrifugal weight is accommodated in the centrifugal weight accommodating groove so as to allow for a relative motion by the centrifugal force and tension force of a spring. The centrifugal weight accommodating groove has a center portion with a predetermined depth for accommodating an end of the centrifugal weight; and a restoration guide surface extended from a side surface of the center portion such that the centrifugal weight escaped from the center portion is restored by the tension force of the spring.