SCROLL COMPRESSOR

摘要

A scroll compressor includes a compression mechanism, a crankshaft, upper and lower bearings, and a drive motor. The compression mechanism includes fixed and movable scrolls engaged with each other to form a compression chamber. The crankshaft has a main shaft and an eccentric portion eccentrically disposed at one end of the main shaft and coupled to a back side of the movable scroll. The upper and lower bearings support upper and lower portions of the main shaft. The drive motor has a stator and a rotor coupled to the main shaft to rotate the movable scroll. At least one of the main shaft and the rotor is provided with a weight arranged to reduce distortion of the crankshaft caused by a fluid load generated in the compression chamber and applied to the eccentric portion during rotation.

主权项

1. A scroll compressor, comprising:
a compression mechanism including a fixed scroll and a movable scroll engaged with each other to form a compression chamber configured to compress a fluid; a crankshaft having a main shaft and an eccentric portion eccentrically disposed at one end of the main shaft and coupled to a back side of the movable scroll; an upper bearing supporting an upper portion of the main shaft of the crankshaft; a lower bearing supporting a lower portion of the main shaft of the crankshaft (40); and a drive motor having a stator and a rotor coupled to the main shaft of the crankshaft to rotate the movable scroll, at least one of the main shaft of the crankshaft and the rotor of the drive motor being provided with a weight, the weight being arranged to reduce distortion of the crankshaft caused by a fluid load generated in the compression chamber and applied to the eccentric portion during rotation.