Patent ID: 7303477

Claim:
A power transmission device for a clutchless compressor comprising: a pulley rotatably installed in a front housing of a compressor and rotated by a rotational force from a driving power source, the pulley having a protruding flange formed in one side face thereof; a hub disposed in one side of the pulley, the hub having a hub body to be connected with a driving shaft of the compressor and a cover plate integrally formed in the outer peripheral face of the hub body; and a connector including a drive-side connection member detachably connected to one side of the pulley through a first coupling means, a driven-side connection member connected to the hub through a second coupling means, a breaking member for connecting the drive-side connection member with the driven-side connection member so as to be broken when a torque above a pre-set value is generated in the compressor, the second coupling means including a plurality of coupling grooves formed in the outer peripheral face of the driven-side connection member, a damper to be connected to the coupling groove, and a projection formed in the inner face of the cover plate of the hub and to be connected with the damper.