START AND RUN DEVICE FOR SINGLE PHASE MOTORS AND START AND RUN SYSTEM FOR SINGLE PHASE MOTORS

摘要

The present invention refers to a start and run device for single phase motors, more specifically to be applied in refrigeration motors with CSR-type (Capacitor Start and Run, also known as CSCR Capacitor Start Capacitor Run) and RSCR-type (Resistance Start Capacitor Run) motors. Said start and run device for single phase motors in accordance with the present invention comprises an anchor 1 composed of springs 2 and 21, magnetic core 3, rivet 4 and a bridge containing a relay R defined by four fixed contact pads 6 and four mobile contact pads 61, wherein such contacts 6, 61 are subdivided into two pairs disposed in preferably parallel position, wherein said anchor is disposed inside a carcass 7 defined by casing 71, cover 77 and spool 73, wherein magnetic thread winding 8 of the device is disposed in the outer lower region of said carcass 7 so as to substantially wrapping the magnetic core 3.