DISC AND HUB ASSEMBLY OF ELECTROMAGNETIC CLUTCH FOR COMPRESSOR

摘要

The present invention relates to an improved disk-and-hub assembly of an electromagnetic clutch for a compressor which is operated stably even in a high-temperature environment without property changes and prevents slip of a disk at the time of decrease of rush torque which is generated instantaneously in the initial stage of operation of the compressor and at the time of a momentary increase of load of the compressor. For this, the disk-and-hub assembly according to an embodiment of the present invention comprises: a hub connected with a driving shaft of the compressor; an inner ring connected to the hub and forming an inner body; an outer ring forming an outer body which surrounds the circumference of the inner ring, and being spaced apart from the inner ring; a disk connected to the outer ring and selectively coming into contact with a contact surface of a pulley; and an elastic member of which both ends are respectively fixed to the outer circumferential surface of the inner ring and to the inner circumferential surface of the outer ring in order to transmit a rotary power to rotate the inner ring in the rotational direction of the outer ring and to provide a restoring force in the axial direction of the driving shaft.