CLOSED RECIPROCATING COMPRESSOR FOR SECURING A SILENT OPERATION OF A COMPRESSOR BY REDUCING EFFECTIVELY VIBRATION OF A ROTOR GENERATED BY THE SPEED CHANGE OF THE ROTOR

摘要

PURPOSE: A closed reciprocating compressor is provided to prevent a rotor from accelerating by acting inertia force on a movable member in the opposite direction of accelerating the rotor. CONSTITUTION: A closed reciprocating compressor is composed of a rotor(22) rotating by interacting with a stator forming a magnetic field; an eccentric unit biased at the side of a rotary shaft combined with the rotor; a compression unit for compressing refrigerant by converting an eccentric rotation motion of the eccentric unit into a rectilinear motion; and a balance(40) installed at the side of the rotor to compensate eccentric mass generated by the eccentric unit. The balance has a movable member(42) arranged circumferentially in a hollow portion and supported elastically. The balance comprises a hollow case(41); the movable member installed movably in the case; and a pair of elastic members(43,44) having one end fixed to the movable member and the other end fastened at both ends of the case.